The extraction of uranium from seawater represents a promising approach to securing future nuclear fuel resources. Powder adsorbents with excellent performance in seawater have been extensively studied; however, their cycling stability and operational practicality remain limited. In this study, COF-TpTDH was incorporated into a sodium alginate/polyvinyl alcohol (SA/PVA) matrix using homogeneous blending-ion crosslinking technique. And aerogel microspheres (TpTDH@SPC) with interpenetrating dual networks were formed. The resultant microsphere exhibits superior mechanical properties, with a pressure resistance of 1.17 Mpa. Importantly, the hydrazone and beta-ketoenamine structures within the COF introduce specific coordination sites that enable selective and efficient capture of uranyl ions. The material exhibited a maximum theoretical adsorption capacity of 325.36 mg g- 1, and its distribution coefficient (Kd) of 9860 mL g- 1 was significantly higher than that of other coexisting metal ions. In addition, TpTDH@SPC exhibit excellent dynamic adsorption performance, with a dynamic breakthrough adsorption capacity of 630.10 mg g- 1, enabling the continuous treatment of 9.56 L of uranium at a concentration of 15 mg L- 1. This result demonstrates their strong potential for industrial applications in continuous-flow processes.

Addressing the dual challenges of accurate detection and efficient removal of pervasive environmental contaminants necessitates the development of high-performance adsorbents and separation materials. Herein, the covalent organic frameworks (COFs) containing sulfone group (TpSD) is synthesized and applied as a solid-phase microextraction (SPME) fiber coating coupled to ambient mass spectrometry (AMS) for efficient extraction and ultrasensitive detection of trace tetrabromobisphenol S (TBBPS) derivatives in multiple water media, including TBBPS mono (allyl ether) (TBBPS-MAE), TBBPS mono (2-bromoallyl ether) (TBBPS-MBAE) and TBBPS mono (2,3-dibromopropyl ether) (TBBPS-MDBPE). As revealed by density functional theory (DFT) calculations, the 2.1-3.3-fold higher extraction efficiency of TpSD compared to TpBD (lacking sulfone groups) is primarily due to additional hydrogen bonding interactions between the sulfone group and the pollutants. The limits of detection (LODs) and quantification (LOQs) are 0.1-0.3 ng L-1 and 0.4-1.0 ng L-1, respectively. This method demonstrated satisfactory linearity in the range of 0.001-10 mu g L-1 (r2 = 0.9984-0.9993), and desirable relative standard deviations (RSDs) (single fiber: 5.7-8.7 %; multiple fibers: 4.9-7.4 %; intraday: 4.5-7.9 %; interday: 5.1-7.1 %). This method can successfully detect TBBPS derivatives in river water and seawater, with spiked recoveries of 95.1 %-108.4 %, proving that this method has good accuracy and selectivity. This study demonstrates that the developed TpSD exhibits exceptional adsorption capabilities, showing great promise as an effective adsorbent for the separation of environmental contaminants.

Bromide ions may transform into harmful by-products such as bromate during the disinfection process, posing a threat to water quality and human health. Therefore, it is essential to remove bromide ions from water to reduce the risk of their conversion into more toxic compounds. Our study investigates the application of a novel covalent organic framework (COF) material for the removal of bromide ions from water. Through the optimization of the synthesis process, we have developed a COF material TpPa-SO3Ag, with a high specific surface area and favorable selectivity, in which silver ions and silver nanoparticles coexist. Experimental results indicate that this material achieves a maximum adsorption capacity of 100.05 mg g-1 and demonstrates exceptional removal efficiency across varying concentrations and environmental conditions. The adsorption process follows a pseudosecond-order kinetic model and Langmuir isotherm, highlighting the ability of the material to reach adsorption equilibrium rapidly, within approximately 40 min, upon contact with bromide ion solutions. This research not only showcases the potential of TpPa-SO3Ag as an efficient adsorbent for bromide ions but also offers new insights into the application of COF in environmental remediation. These findings pave the way for the

In this work, a polydopamine (PDA)/polyamide composite nanofiltration (NF) membrane was synthesized through continuous surface grafting and reverse interfacial polymerization (RIP) for selective separation of Mg2+/Li+. Dopamine was deposited onto the support membrane through self-polymerization. 1,3,5-benzenetricarboxylic acid chloride (TMC) was grafted through its reaction with PDA, and then RIP was performed between the residual TMC on the membrane and polyethyleneimine (PEI). The reaction process how composite membranes were formed was investigated using high-sensitivity ATR-FTIR, AFM and SEM. Compared with the single grafting or RIP reaction, the PDA-TMC-PEI composite NF membrane had a smaller pore size and higher positive charge density, which enhanced the Donnan effect in the selective separation of Mg2+/Li+. It further showed high separation capacity in a mixed salt solution with a separation factor (SLi,Mg) of 99.0 (Mg2+/Li+ mass ratio of 120), and the magnesium rejection is 98.9 %, surpassing the majority of previously reported NF membrane. The pure water flux of the PDA-TMC-PEI composite NF membrane reached 6.37 L center dot m(-2)center dot h(-1)center dot bar(-1). The static contact angle of PDA-TMC-PEI was only 10 degrees, and the high hydrophilicity facilitated the water permeation. In addition, in a simulated salt-lake brine water treated with a three-stage NF system, the Mg2+/Li+ mass ratio was significantly reduced, from 13.08 to 0.04, and the Mg2+ concentration was reduced from 1,190 mg center dot L-1 to 3.7 mg center dot L-1, showing great potential for practical applications in lithium extraction.

Developing efficient and cost-effective uranium adsorbents remain a significant challenge due to the complex composition of seawater. Herein, this study for the first time utilized an in-situ spray gel-assisted biosynthesis strategy to homogeneously incorporate the covalent organic frameworks (COF) into the three-dimensional pores of bacterial cellulose (BC) hydrogel during the culture of K. sucrofermentans. The BCCOF-SO3NH4 aerogel was fabricated through ammoniating modification of BC/COF (BCCOF-SO3H) hydrogel and freeze-drying processes. The BCCOF-SO3NH4 aerogels are characterized by the in-situ entanglement of COF within the three-dimensional network of BC, resulting in enhanced mechanical strength and groups interactions. The experimental maximum adsorption capacity of BCCOF-SO3NH4 aerogel reached 883.44 mg g(-1), demonstrating exceptional uranium adsorption capacity compared with most of the reported adsorbents. The adsorption process follows the pseudosecond-order model and Langmuir isotherm. Throughout seven adsorption-desorption cycles, BCCOF-SO3NH4 maintained a stable adsorption capacity and desorption efficiency. The adsorption mechanism is verified by experiments and DFT calculations, which involves not only the ion exchange between uranyl and NH4+, but also the strong coordination interaction between the active groups (sulfonic acid group, hydroxyl group) and uranium. The in-situ biosynthesis strategy of composites shows a great application prospect in the preparation of high adsorption performance materials.

Lithium extraction from salt lakes has become an environmentally friendly way of lithium acquisition. The development of new nanofiltration membrane is significant to enhance the separation efficiency of lithium from a high Mg2+/Li+ mass ratio brine. In this work, Fe3+/tannic acid-trimesoyl chloride-polyetherimide (Fe3+/TA-TMC-PEI) composite nanofiltration membranes were designed to study the separation performance of Mg2+/Li+ in a high Mg2+/Li + mass ratio simulated brine. Fe3+/TA separation layer was introduced through the rapid assembly of tannic acid and coordination mediated by Fe3+ on polyethersulfone supporting membrane. The polyamide layer was prepared through the reverse interfacial polymerization between TMC and PEI. The composite nanofiltration membrane has high crosslinking degree and positive charge and low pore size. The best performance of the composite nanofiltration membrane was obtained with 0.3% (mass) Fe3+ solution, 0.9% (mass) TA, and 2 gL 1 PEI 600 ethanol solution. The retention of bivalent ions was significantly greater than that of monvalent ions in single salt solution. The Fe3+/TA-TMC-PEI composite nanofiltration membrane showed a stable separation factor of 12.02 when the Mg2+/Li+ mass ratio was 120 in the mixed salt solution. This work deepens the understanding of the mechanism of lithium extraction in magnesia-lithium system, and the modification strategy provides a possible guide for the design of Mg2+/Li+ separation membranes with practical potential from the perspective of lithium extraction technology. (c) 2025 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

Developing efficient adsorbent is imperative for the utilization of uranium resources in seawater. Marine microorganisms and bacteria play an important role in the process of adsorption of uranium. In this work, a completely bio-based antimicrobial aerogel (quaternary cellulose/chitosan aerogel-QCNF/CS) was prepared by cross-linking quaternary cellulose nanofibers (QCNF) and chitosan (CS) via citric acid (CA). The QCNF/CS aerogel has a high adsorption capacity of 565.97 mg g1, high selectivity (Kd = 1.6 x 104 mL g-1). Moreover, the incorporation of CS improved the mechanical properties and enhanced the shape recovery property. The adsorption system reached equilibrium within 300 min and had good recovery of 93 % for UO22+. After seven cycles of adsorption-desorption, QCNF/CS aerogel still maintained its original structure and retained 80.7 % of its initial adsorption capacity. The introduction of quaternary ammonium salt groups gives the QCNF/CS aerogel strong antimicrobial activity, and the inhibition rate can be up to 96 %. The aerogel also showed good adsorption performance in spiked natural seawater. DFT results and XPS analysis further indicated that -COOH of CA and -OH of CNF functional groups could enhance the adsorption capacity of QCNF/CS aerogel. Therefore, QCNF/CS aerogel was a potential adsorbent for the extraction of uranium from seawater.

The global need for bromide ions (Br-) has driven the research focus to extract them from various liquid ores. Highly efficient and selective adsorbent is still lacking. MOF with large surface area and structural stability are promising candidate for Br- extraction. In this work, we prepared Cu-MOF-74 nanocrystals. Abundant hydroxyl groups on them spontaneously reduced Ag+ to Ag(0 )nanoparticles, resulting in the fabrication of Ag0 doped CuMOF-74. The crystalline structure retains after the doping of Ag0 when the mass ratio of silver nitrate to MOF is <0.5. The crystals are distorted or even damaged when the ratio is higher than 1.0 according to XRD and DFT calculation. The adsorption capacity of Ag-3-Cu-MOF-74 is 232.92 mg g(-1), surpassing the capacities of most previously documented adsorbents. The desorption of Br- and thereafter the recovery of adsorbent could be realized through light driven decomposition of AgBr. This MOF adsorbent shows promising application potential in Br- recovery from various liquid ores.

The current work introduces the synthesis of inorganic salt nano/micro-crystals during the reduction of hydrogen tetrachloroaurate(III) by Pluronic triblock copolymers (P123, PEO20–PPO70–PEO20). The morphologies and component were confirmed using an electron microscope with an electronic differential system (EDS), and the crystal structures were determined with X-ray diffraction (XRD). The morphologies highly depend on the concentrations of Pluronic and pH values. The mean size of the nanocrystal and hollow micro-crystal were controlled typically in the range of 32–150 nm (side length) and 1.4 μm, respectively. Different from the electrospray–ionization (EI) method, a model in which KCl forms a supersaturated solution in the micellar core of Pluronic is used to explain the formation process. This work provides the new insight that inorganic salt nanocrystals could be synthesized with the template of micelles in pure aqueous solutions.

Utilizing metal-organic framework (MOF) materials for the extraction of bromide ions (Br-) from aqueous solutions, as an alternative to chlorine gas oxidation technology, holds promising potential for future applications. However, the limitations of powdered MOFs, such as low utilization efficiency, ease of aggregation in water, and challenging recovery processes, have hindered their practical application. Shaping MOF materials into application-oriented forms represents an effective but challenging approach to address these drawbacks. In this work, a novel Ag-UiO-66-(OH)(2)@delignified wood cellulose aerogel (CA) adsorbent is synthesized using an oil bath impregnation method, involving the deposition of UiO-66-(OH)(2) nanoparticles onto CA and the uniform dispersion of Ag-0 nanoparticles across its surface. CA, characterized by the intertwined cellulose nanofiber structure and a highly hydrophilic surface, serves as an ideal substrate for the uniform growth of UiO-66-(OH)(2) nanoparticles, which, in turn, spontaneously reduce Ag+ to form distributed Ag-0 nanoparticles due to the abundant hydroxyl groups provided. Leveraging the well-defined biological structure of CA, which offers excellent mass transfer channels, and the highly dispersed Ag adsorption sites, Ag-UiO-(OH)(2)/CA exhibits remarkable adsorption capacity (642 mg/g(Ag)) under optimized conditions. Furthermore, an integrated device is constructed by interconnecting Ag-UiO-(OH)(2)/CA adsorbents in series, affirming its potential application in the continuous recovery of Br-. This study not only presents an efficient Ag-UiO-(OH)(2)/CA adsorbent for Br- recovery but also sheds light on the extraction of other valuable elements from various liquid ores.

Monosaccharides are vital building blocks in bioengineering applications; however, their extraction from intricate mixtures is challenging and uses substantial amounts of energy. Polymers of intrinsic microporosity (PIMs) offer an innovative avenue for separating monosaccharides. We modified PIM-1membranes to improve the glucose/xylose separation by incorporating polyethylene glycol monomethyl ether (mPEG). The optimal mPEG (molecular weight: 1000 Da; mass fraction: 2.5 %; solvent: methanol) delivered a xylose separation coefficient of 2.62. With the hybrid membrane of PIM-1-mPEG (50 w.t.%) and hydrophilic Tr & ouml;ger's base polymerer (DMBP-TB, 50 w.t.%), the separation factor for xylose/glucose in an aqueous solution was 2.51 for single-stage running and 11.32 after five-stage running. There are large fractions of micropores for PIM-1-mPEG, and there is difference on solute-membrane interactions for pentose/hexose, which are regarded to be the main driving force for the high pentose/hexose selectivity in methanol. The blending of PIM-1-mPEG and DMBP-TB, integrates the microporosity and hydrophilicity, finally endues the high pentose/hexose selectivity in aqueous solution. These microporous membranes are promising materials for efficiently separating monosaccharides and jnl> small organic molecules while minimizing energy consumption. We established a solid foundation for further exploring microporous membranes for various applications, notably in bioengineering.

The efficient recovery of bromide ions (Br-) from aqueous solutions can alleviate the shortage of bromide re-sources and holds significant practical value. In this work, a Fe-doped Zr-based metal-organic framework (Fe-MOF-808) was successfully prepared, demonstrating remarkable efficacy in the high-capacity adsorption of Br-. The incorporation of Fe leads to reduction in particle size, elevation of specific surface area, and defect-rich structure, allowing Fe-MOF-808 to quickly adsorb Br-, and the adsorption process follows the Langmuir isotherm and pseudo-second-order kinetic model. Notably, under the conditions of an initial Br- concentration of 100 mg/L, 298 K and pH of 7, Fe-MOF-808 demonstrates exceptional adsorption capacity for Br- (247 mg/g), surpassing that of the pristine MOF-808 and the majority of previously reported adsorbents. Additionally, in-sights derived from Fourier transform infrared spectrometer (FT-IR), X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT) calculations elucidate the Br- adsorption mechanism on Fe-MOF-808, which can be attributed to the robust interaction between M-OH (M = Zr, Fe) groups and Br-, enhanced electron transfer behavior subsequent to iron modification, and ligand exchange processes. In summary, Fe-MOF-808 emerges as an efficient adsorbent for capturing Br- from aqueous solution, providing a novel approach for the design of advanced Br- adsorbents.

The advancement of efficient, recyclable adsorbents for the economical capture of uranium from seawater is critical for the sustainable progression of nuclear energy. In this work, a unique aerogel composed of covalent organic frameworks (COF-TpTHA)/cellulose nanofibrils (CNF) was synthesized under mild conditions for uranium adsorption. TpTHA/CNF aerogel resolves challenges related to the formability of COF. CNF utilized as the matrix to encapsulate COF-TpTHA in order to improve the dispersion and reinforce the composite materials. The introduction of COF-TpTHA endows CNF aerogel with sufficient active groups for uranium adsorption. X-ray diffraction (XRD) characterization confirmed the successful incorporation of COF while maintaining the type I structure of cellulose. Fourier-transform infrared (FT-IR) spectroscopy further validated the presence of hydrogen bonding interactions between COF and cellulose. The results demonstrated the excellent adsorption efficiency of TpTHA/CNF aerogel towards U(VI), with a maximum adsorption capacity of 177.90 mg g-1 (experiment) for U (VI). Meanwhile, TpTHA/CNF aerogel exhibited favorable adsorption selectivity and reusability. This celluloseencapsulated COF approach offers a simple and promising method for uranium extraction from seawater, demonstrating its significant application potential.

This work aimed to establish a simple and feasible method to obtain silk fibroin nanoparticles (SFNPs) with uniform particles size, and then modify the SFNPs with nanobody (Nb) 11C12 targeting the proximal membrane end of carcinoembryonic antigen on the surface of colorectal cancer (CRC) cells. The regenerated silk fibroin (SF) was isolated using ultrafiltration tubes with a 50 kDa molecular weight cut-off, and the retention fraction (named as SF > 50 kDa) was further self-assembled into SFNPs by ethanol induction. Scanning electron microscope (SEM) and high-resolution transmission electron microscop showed that the SFNPs with uniform particles size were formed. Due to electrostatic adsorption and pH responsiveness, SFNPs have been proved to effectively load and release the anticancer drug doxorubicin hydrochloride (DOX) (DOX@SFNPs). Further, targeting molecule Nb 11C12 was used to modify these nanoparticles, constituting the targeted outer layer of the drug delivery system (DOX@SFNPs-11C12), achieving precise localization to cancer cells. The release amount of DOX observed from in vitro drug release profiles increased as follows: pH 7.4 < pH 6.8 < pH 5.4, demonstrating that the DOX release could be accelerated in a weakly acidic environment. In vitro cytotoxicity experiments displayed that SFNPs-11C12 nanoparticles exhibited good safety and biocompatibility. Drug-loaded nanoparticles, DOX@SFNPs-11C12, led to higher LoVo cells apoptosis compared to DOX@SFNPs. Fluorescence spectrophotometer characterization and confocal laser scanning microscopy further showed that the internalization of DOX was highest in the DOX@SFNPs-11C12, certifying that the introduced targeting molecule enhanced the uptake of drug delivery system by LoVo cells. This study provides a simple and operational approach to developing an optimized SFNPs drug delivery system modified by targeting Nb, which can be a good candidate for CRC therapy.

Acid saccharification of hemicelluloses offers promising pathways to sustainably diversify the revenue of the lignocellulose biorefinery industry. Electrodialysis to separate inorganic acids from acid hydrolysate in the hemicellulose saccharification process could realize the recovery of sulfuric acid, and significantly reduced the chemical consumption than the traditional ion exchange resins method. In this work, the deacidification of corncob acid hydrolysate was conducted by a homemade electrodialysis apparatus. The results showed that: (1) more than 99% of acid can be removed through the electrodialysis process; (2) A non-negligible membrane fouling occurred during the electrodialysis process, which aggravated with the repeated batch running The final global system resistance rose from 15.8 Ω (1st batch) to 43.9 Ω (10th batch), and the treatment ending time was delayed from 120 min (1st batch) to 162 min (10th batch); (4) About 90% of protein, 70% of ferulate acid, and 80% of p-coumarate acid precipitated from the corncob acid hydrolysate during the electrodialysis process. The zeta potential of corncob acid hydrolysate changed from a positive value to a negative value, and an isoelectric point around pH 2.3 was reached. HSQC, FTTR, and GPC, along with SEM and EDS analysis, revealed that the fouling layers mostly consisted of hydrolysates of protein and lignin. The result of HSQC indicated that the membrane foulant may exist in the form of lignin–carbohydrate complexes, as the lignin component of the membrane foulant is in the form of p-coumarate and ferulate. From the result of FTIR, a strong chemical bonding, such as a covalent linkage, existed between the lignin and protein in the membrane foulant. Throughout the electrodialysis process, the increased pH decreased the stability of colloidal particles, including lignin and proteins. Destabilized colloidal particles started to self-aggregate and form deposits on the anion exchange membrane’s surface. Over time, these deposits covered the entire membrane surface and the spaces between the membranes. Eventually, they attached to the surface of the cation exchange membrane. In the end, a suggestion to control and minimize membrane fouling in this process was discussed: lower pH as a process endpoint and a post-treatment method.

Mesoporous silica nanoparticles (MSNs) loaded with doxorubicin and then modified with hyaluronic acid (HA) and nanobody (DOX@MSNs-HA-11C12) is a pH- and redox-responsive drug delivery system, resulting in over 90% of LoVo cell apoptosis within 48 h.

With the development and prosperity of the global economy, the emission of carbon dioxide (CO2) has become an increasing concern. Its greenhouse effect will cause serious environmental problems, such as the global warming and climate change. Therefore, the worldwide scientists have devoted great efforts to control CO2 emissions through various strategies, such as capture, resource utilization, sequestration, etc. Among these, the catalytic conversion of CO2 to methane is considered as one of the most efficient routes for resource utilization of CO2 owing to the mild reaction conditions and simple reaction device. Pioneer thermodynamic studies have revealed that low reaction temperature is beneficial to the high catalytic activity and CH4 selectivity. However, the low temperature will be adverse to the enhancement of the reaction rate due to kinetic barrier for the activation of CO2. Therefore, the invention of highly efficient catalysts with promising low temperature activities toward CO2 methanation reaction is the key solution. The Ni based catalysts have been widely investigated as the catalysts toward CO2 methanation due to their low cost and excellent catalytic performances. However, the Ni based catalysts usually perform poor low-temperature activities and stabilities. Therefore, the development of highly efficient Ni based catalysts with excellent low-temperature catalytic performances has become the research focus as well as challenge in this field. Therefore, we summarized the recent research progresses of constructing highly efficient Ni based catalysts toward CO2 methanation in this review. Specifically, the strategies on how to enhance the catalytic performances of the Ni based catalysts have been carefully reviewed, which include various influencing factors, such as catalytic supports, catalytic auxiliaries and dopants, the fabrication methods, reaction conditions, etc. Finally, the future development trend of the Ni based catalysts is also prospected, which will be helpful to the design and fabrication of the Ni catalysts with high efficiency toward CO2 methanation process.

Liquid metal nanodroplets not only share similar metallic properties and nanoscale effect with solid metal nanoparticles, but also possess the additional uniqueness in nonvolatile fluidity and ambient sintering ability into continuous conductors. In most cases, liquid metal nanodroplets are encapsulated into ultrathin and fragile shells of oxides and amphiphile monolayers, and may be hindered from incorporating homogeneously into various composites through conventional processing methods. In this study, ring-opening polymerization is found to be initiated by sonicating the liquid metal EGaIn in fluidic lactones. By this in situ polymerization, EGaIn nanodroplets are encapsulated into polylactone shells with tunable thickness, which can further be dried into a solid powder. Besides high chemical stability and dispersibility in organic solvents, the powder of the EGaIn capsules combines the exceptional properties of the EGaIn droplets (e.g., photothermal effect) and the polylactone shells (e.g., biocompatibility, biodegradability, and compatibility with different polymer matrixes), being capable of being introduced into thermoplastic composites through liquid casting and thermal- or photomolding for the notch-insensitive tearing property, sintering-induced electric conductivity, and photothermal effect. Thus, the EGaIn initiator of ring-opening polymerization may start a pathway to produce stable andthermal/photomoldable powders of EGaIn capsules and their multifunctionalcomposites, applicable in biomedicines, soft electronics, and smart robots.

With the development and prosperity of the global economy, the emission of carbon dioxide (CO2) has become an increasing concern. Its greenhouse effect will cause serious environmental problems, such as the global warming and climate change. Therefore, the worldwide scientists have devoted great efforts to control CO(2)emissions through various strategies, such as capture, resource utilization, sequestration, etc. Among these, the catalytic conversion of CO(2)to methane is considered as one of the most efficient routes for resource utilization of CO(2)owing to the mild reaction conditions and simple reaction device. Pioneer thermodynamic studies have revealed that low reaction temperature is beneficial to the high catalytic activity and CH(4)selectivity. However, the low temperature will be adverse to the enhancement of the reaction rate due to kinetic barrier for the activation of CO2. Therefore, the invention of highly efficient catalysts with promising low temperature activities toward CO(2)methanation reaction is the key solution. The Ni based catalysts have been widely investigated as the catalysts toward CO(2)methanation due to their low cost and excellent catalytic performances. However, the Ni based catalysts usually perform poor low-temperature activities and stabilities. Therefore, the development of highly efficient Ni based catalysts with excellent low-temperature catalytic performances has become the research focus as well as challenge in this field. Therefore, we summarized the recent research progresses of constructing highly efficient Ni based catalysts toward CO(2)methanation in this review. Specifically, the strategies on how to enhance the catalytic performances of the Ni based catalysts have been carefully reviewed, which include various influencing factors, such as catalytic supports, catalytic auxiliaries and dopants, the fabrication methods, reaction conditions, etc. Finally, the future development trend of the Ni based catalysts is also prospected, which will be helpful to the design and fabrication of the Ni catalysts with high efficiency toward CO(2)methanation process.