Using halloysite nanotubes (HNTs) as carriers, a series of Cu2O/HNTs composites (CuH-X, X = 5, 10, 20, 30) with different Cu2O loading amounts were prepared via a wet-chemical method. The influence of Cu2O loading amount on the morphology, structure, photo-electrochemical and degradation performance etc. of CuH-X composites was studied. In addition, sodium persulfate (PDS) was added as an oxidant to investigate the degradation performance of Cu2O/HNTs composite toward tetracycline hydrochloride (TCH). Results showed that loading Cu2O onto HNTs effectively inhibited the agglomeration of Cu2O nanoparticles, modified the structure, and led to an increased apparent band gap. The sample loaded with 20 wt% Cu2O exhibited the optimal photocatalytic performance, removing 80.2 % of TCH within 90 min. Notably, in the Vis/PDS system, the CuH-30 composite demonstrated significantly enhanced degradation efficiency, removing 94.5 % of TCH molecules upon the addition of 0.15 mM PDS. Cycling and free radical trapping experiments confirmed that CuH-30 had favorable stability and recyclability, with h+, ·O2– and ·SO4− as the dominant reactive species and ·OH playing a minor contributor. The possible degradation pathway and mechanism of TCH were proposed. Overall, the synergy between the strong photocatalytic activity of Cu2O and the excellent adsorption capability of HNTs resulted in a marked enhancement in the degradation performance of the Cu2O/HNTs composites.

CsPbCl3 perovskite quantum dots (QDs) have attracted significant attention as candidate materials in the field of optoelectronics. However, the lead toxicity and poor stability of their structure need to be solved. Herein, Mn2 +-based luminescence element, which emits orange light and has a strong influence on the exciton properties of host QDs, is dopped in Pb2+-site to form high-entropy structure. In this paper, high-entropy perovskite Cs (MnxNi1-x/4Ca1-x/4Mg1-x/4Pb1-x/4)Cl3 quantum dots (MxNCMP QDs, x = 0.2-0.5) were synthesized via highenergy ball-milling approach, and the effect of Mn2+ concentration variation on luminescence intensity was also investigated. Compared to Cs(Mn1/5Ni1/5Ca1/5Mg1/5Pb1/5)Cl3 QDs, QDs with unequal high-entropy doping greatly improve the luminescence intensity that increases to 200 % and still maintain at 85 % even after 50 days when Mn2+ concentration is 30 %. Meantime, this method reduces Pb2+ content to 12.5 %, attributed to the synergistic effect of manganese. The d-d orbital transition luminescence of Mn2+ and the cooperative rotation effect of the Mn2+-Cl--Mn2+ structure, enhances the luminescence intensity along with increasing Mn2+ concentration. However, when Mn2+ concentration exceeds 30 %, a Mn2+/Mn4+ pinned structure emerges, broadening the conduction band and collapsing the Mn2+-Cl--Mn2+ structure, resulting in a significant decrease in luminescence intensity. In addition, this preparation process realized full inorganic composition and rapid preparation via high-energy ball-milling. Moreover, this study also provides a promising avenue to solve the defects in perovskite materials and enhance their luminescence performance.

CdS/Fe2O3/HNTs (CFH-X, X = 1, 2, 4, 10, 20) composites were prepared via two steps of sol-gel and chemical precipitation method with varying the mass ratio of Fe2O3 to CdS to be X:20, respectively. The effects of the mass ratio of CdS to Fe2O3 on the phase composition, morphology, microstructure, specific surface area and photoelectric properties, etc. of CFH-X were investigated. Tetracycline hydrochloride (TC) was selected as the simulated pollutant to evaluate the photocatalytic performance of CFH-X under the irradiation of visible light (Vis). Sodium peroxydisulfate (PDS) was selected as the auxiliary agent to evaluate the degradation performance of CdS/Fe2O3/HNTs toward TC in Vis/PDS system. The results showed that the presence of Fe2O3 made the loading of CdS in CFH-X more uniform. The CdS/Fe2O3 heterojunction significantly enhanced the photoelectric properties of CFH-X, reduced the recombination rate of photogenerated carriers, inhibited the photocorrosion of CdS and enhanced the activity of Fe2O3. Compared with that of CdS/HNTs (CH-20), the photocatalytic performance of CFH-X samples firstly increased and then decreased with the increase of mass ratio of Fe2O3 to CdS, in which CFH-2 (mass ratio of Fe2O3 to CdS was 2:20) showed the optimal performance. 0.025 g of CFH-2 degraded 98.97 % of TC (100 mL, 25 mg/L) within 60 min in Vis/PDS system. The photocatalytic reaction rate constant of Vis/ PDS/CFH-2 (0.0619 min-1) was 32.57, 2.96, 2.85 and 1.68 times those of Vis/PDS/Fe2O3, Vis/PDS/CdS, Vis/ PDS/CH-20 and Vis/CFH-2. The optimal dosage of PDS was 2 mM, center dot O2-, center dot SO4-, h+, center dot OH were the main active groups for degrading TC. CFH-2 possessed an excellent universality for degrading organic pollutants and maintained the high removal rates of TC in the anti-interference experiments.

ZnxMg3-xAl-LDH/g-C3N4 (ZxM3-xACN, x = 0, 1, 2, 3) composites were prepared via the electrostatic self-assembly method by assembling ZnxMg3-xAl-LDH with g-C3N4 nanosheets. The photocatalytic degradation of methyl orange (MO) by ZxM3-xACN under the visible-light and the sulfite activation was investigated. The results show that the doping rate of Zn2 + had an important effect on the microstructure, photoelectric properties, and photocatalytic performance of ZxM3-xACN composites. In cooperation with the Na2SO3 activation, the photocatalytic degradation efficiency of MO by ZxM3-xACN composites were significantly improved. Zn1Mg2Al-LDH/g-C3N4 (Z1M2ACN) composite achieved the optimum photocatalytic performance. With the addition of 5 mmol Na2SO3, 25 mg of Z1M2ACN could degrade 94.3 % of MO molecules (10 mg/L, 100 mL) after 30 min of photocatalytic reaction, and it also exhibited good stability and recyclability. In addition, the pH value and temperature of MO solution as well as the sulfite dosage influenced the degradation efficiency, and a possible mechanism for the degradation of MO by ZnxMg3-xAl-LDH/g-C3N4 composite in the photocatalysis-sulfite activation system was proposed. Therefore, this research not only provides a strategy for the efficient degradation of organic pollutants by ZnMgAl-LDH/g-C3N4 composite, but also reveals the relationship among the visible-light, photocatalyst, and sulfite oxidant for the organic pollutant degradation.

ZnO/ZnAl-LDH composites (ZZA-X, X = 10, 30, 40, 50, 70), with mass ratios of ZnO to ZnAl-LDH to be X: 100, were synthesized via an organic solvent-assisted hydrothermal strategy. The microstructure, specific surface area, photo-electrochemical property and photocatalytic activity of ZZA-X composites varied with ZnO content. Compared with pure ZnO or ZnAl-LDH, ZZA-X composites exhibited significantly enhanced photocatalytic performance. The interfacial contact between ZnO and ZnAl-LDH was optimized at an appropriate ZnO content, while excessive ZnO loading led to agglomeration and reduced contact area, identifying that intimate interface bonding was the key factor for the enhanced photocatalytic activity. The degradation efficiency of ZZA-X composites toward ciprofloxacin (CIP) increased progressively with ZnO content up to the optimum at ZZA-40 and then decreased. This optimal ZZA-40 composite (0.05 g) degraded 99.92% of CIP molecules (100 mL, 20 mg/L) within 120 min under ultraviolet light irradiation, whose reaction rate constant was 5.76 and 7.34 times that of pure ZnO and ZnAl-LDH, respectively. This excellent photocatalytic performance of ZZA-40 was attributed to the intimate interface bonding-induced heterojunction effect, which facilitated the separation and transfer of charges. ZZA-40 also exhibited good structural stability and reusability. Notably, ZZA-40 composite could effectively degrade polystyrene microplastics (PS MPs) and the surface of PS MPs became increasingly rough even produced cracks and fragments as the photocatalytic reaction proceeding. In addition, the possible degradation pathways of PS MPs were elucidated. This work provides a feasible strategy for constructing ZnO/ZnAl-LDH composites with intimate interfacial contact for the efficient degradation of persistent organic pollutants.

Ductile interphases serve as mechanical fuses to deflect matrix cracks in carbon fiber reinforced ultra-high temperature ceramic composites (Cf/UHTCs). This work introduces Ni3B, a ductile ceramic with intrinsically low shear modulus (79 GPa) and high bulk modulus (236 GPa, G/B = 0.33), as the interphase in Cf/ZrB2-SiC composites. A hydrothermal carbon/Ni3B hierarchical architecture was further engineered to resolve thermal expansion mismatch between Ni3B coating and carbon fibers. The optimized interface enhances fracture toughness and flexural strength by 65 % and 47 %, compared to the unmodified composites. In addition, Ni3B derived low-density oxides could generate volume expansion under oxidative conditions, sealing interfacial microcracks and elevating critical thermal shock temperature difference from 428 degrees C to 824 degrees C. By uniquely coupling interface toughening with self-healing functionality, Ni3B is predicted to be a promising interphase material for future Cf/UHTC composites.

Diatomite offers great potential for developing low-cost filtration ceramics due to its inherent nanoporous structures. However, achieving both high mechanical strength and excellent permeability in diatomite-based porous ceramics remains challenging. This study successfully prepared diatomite-based hierarchical porous ceramics at low temperatures via the addition of composite sintering additives and flake graphite. The effects of sintering temperature, dosage of sintering additives and pore-forming agent on the phase composition, microstructure, physical properties, and permeation flux of porous ceramics were systematically investigated. The optimized diatomite-based porous ceramic sintered at 875 degrees C with 15 wt% of sintering additives and extra dosage of 40 wt% graphite achieved an exceptional balance between flexural strength (9.28 MPa) and permeation flux (878.72 L center dot m- 2 center dot h- 1 center dot bar- 1), with a pore size distribution mostly in the range of 0.4-20 mu m. Furthermore, the diatomite-based porous ceramic demonstrated superior filtration performance by completely retaining alumina particles larger than 121.5 nm, effectively separating the oil-in-water emulsion and adsorbing toward methylene blue molecules, showing great promise for wastewater treatment applications.

All-inorganic halide perovskite quantum dots (QDs) face critical challenges, including poor structural stability, lead toxicity in lead-based systems, difficulty in achieving excellent multifunctionality, and complex synthesis processes. To address these issues, we synthesize novel all-inorganic lead-free high-entropy Cs(Ag1/5Bi1/5Mn1/5In1/5Ca1/5)Cl3 QDs (ABMIC QDs) via a facile solid-state ball-milling method within 20 minutes. The resulting QDs exhibit excellent dual functionality: a photoluminescence intensity 4.45 times higher than that of CsPbCl3, and a RhB degradation efficiency of 99.7% under 40 minutes of visible light irradiation. Moreover, ABMIC QDs demonstrate outstanding stability, retaining 94.2% of initial photoluminescence after 120 days of air exposure and 61.8% after 72 hours of water immersion, while maintaining catalytic activity over five reuse cycles. Mechanistically, the high-entropy lattice and synergistic multiple cations enable differentiated charge carrier behavior: Bi3+, Ag+, In3+, and Mn2+ collectively absorb light; radiative recombination via self-trapped excitons and Mn2+ (4T1→6A1) generates luminescence; meanwhile, efficient charge separation and migration to the surface drive photocatalysis. Ca2+ further stabilizes the lattice and passivates surface defects. This work provides a green, scalable route to multifunctional lead-free perovskites for environmental remediation, optoelectronic displays, and sensing.

The widespread application of electromagnetic wave technologies in telecommunications, healthcare, and defense has led to increasingly severe electromagnetic radiation pollution, driving an urgent demand for high-performance electromagnetic wave absorbing materials. Among various candidate systems, spinel-based absorbing materials stand out due to their exceptional compositional tunability, rich electromagnetic response mechanisms, and superior loss characteristics, making them a research hotspot in the field of electromagnetic functional materials. In this review, recent progress in spinel-based electromagnetic wave absorbing materials spanning from atomic-scale engineering to multiscale integration was systematically summarized. Particular emphasis is placed on entropy engineering-driven lattice distortion and defect synergistic effects, as well as on morphology engineering and heterogeneous composite strategies for constructing multiscale functional architectures and metamaterial-inspired systems. Furthermore, the fundamental structure-property relationships governing EMW attenuation are discussed, together with the current challenges and emerging opportunities in this rapidly evolving field. Finally, future research directions are also outlined to facilitate the rational design of next-generation spinel-based absorbers with enhanced efficiency and multifunctionality. This review provides a comprehensive framework for the design principles of spinel-based EMW absorbers and offers valuable insights to guide the rational development of next-generation high-performance electromagnetic functional materials.

Hot oscillatory pressing (HOP) is an advanced sintering technique for producing ceramics with high mechanical performance; however, the underlying mechanism by which oscillatory pressure promotes densification and microstructural refinement remains inadequately understood. In this study, hysteresis analysis, adapted from metal fatigue models, was first applied to monitor the sintering behavior of Al2O3/TiCp composites in real time. Densification curves and hysteresis loops indicate that grain boundaries exhibit viscoelastic characteristics when grain boundary sliding dominates, and the oscillatory pressure optimizes sintering through cyclic softening and hardening. Initially, a softening process promotes grain boundary sliding to accelerate densification. As the density increases, energy dissipation due to internal friction induces a transition to cyclic hardening, thereby enabling simultaneous microstructural refinement and property enhancement. Microstructural analysis further reveals that, compared to static pressure, oscillatory pressure reduces grain boundary energy, inhibits grain growth, and enhances densification. The HOP-sintered composite exhibits a Vickers hardness of 21.8u00B10.3 GPa and flexural strength of 795u00B129 MPa, improvements of ~10% and 21.4%, respectively, over hot pressing (HP). This work establishes a mechanistic framework linking oscillatory pressure to microstructural evolution, providing theoretical support for the further development of HOP technology.

Diatomite-based porous ceramics were prepared using single or composite pore-forming agents, with the aiding of pressureless sintering method and sintering aids. The microstructure, mechanical property and permeation flux of the ceramics varied with pore-forming agent types and the mass ratio of spherical graphite and flake graphite in the composite pore-forming agent. Among all the single pore-forming agents, spherical graphite and flake graphite achieved the highest flexural strength and permeation flux, respectively. With the mass ratio of 3:1, the diatomite porous ceramics obtained the optimum comprehensive properties with bead-like-micro-nano hierarchical pore structures, achieving high flexural strength (13.8 MPa), high porosity (similar to 60%) with a pore size range mainly in 0.5-34 mu m, and high permeation flux of 887.82 L m(-2) h(-1)& centerdot;bar(-1). The porous ceramic could efficiently intercept the alumina particles larger than 144.5 nm and separate the oil-water mixtures. This study offers a viable pathway for developing high-performance diatomite-based porous ceramics tailored for advanced wastewater treatment techniques.

Ultra-thin g-C3N4 nanosheets (CN-T-t) were successfully prepared via thermally exfoliating bulk g-C3N4 (CN) at different temperatures (T) of 480, 490, 500, 510, 520 ℃, respectively, for 2 h, and at 500 ℃ for different times (t) of 0.5, 1, 1.5, 2h, respectively. The phase composition, microstructure, the photocatalytic degradation property, etc., of CN-T-t samples were studied systematically. The specific surface area of the CN-T-t samples increased with the enhancement of thermal exfoliation temperature and time. The absorption edges of all CN-T-t samples presented blueshift after thermally exfoliating, but their absorption edges were close to each other. Compared with the CN sample, CN-T-t samples exhibited the improved photocatalytic performance. Among them, CN-500-2 (0.1 g) demonstrated the superior photocatalytic properties, which achieved 99.06

The inherently strong covalent and ionic bonds of ceramics severely limit their plastic formability at low temperatures, which restricts their wide applications in complex-shaped components. In this study, we demonstrate a flash-activated deep drawing approach that enables ultrafast plastic forming of 3 mol% yttria-stabilized zirconia at a low furnace temperature of 800 degrees C and a high forming speed of 8 mm/min, which represents a substantial improvement over the extreme conditions typically required in conventional ceramic forming (1450-1750 degrees C, <0.6 mm/min) and other field-assisted forming studies (1400-1600 degrees C, similar to 0.1 mm/min). Furthermore, regionspecific forming experiments indicate that the anode and middle regions of the sample show better formability than the cathode region, owing to higher local temperatures and fewer vacancy-related defects. The abundant dislocations suggest that deformation is governed by dislocation-accommodated grain-boundary sliding, with electric field/current-enhanced diffusion further promoting grain-boundary accommodation and acting synergistically with dislocation activity.

Natural halloysite nanotubes (HNTs) were subjected to alkali treatment (4-6 M NaOH, 2-12 h, 50-80 degrees C) to regulate its structure and surface reactivity. A series of alkali-modified HNTs samples including HNTs-CX (X = 4, 5, 6), HNTs-tY (Y = 2, 4, 6, 8, 10, 12) and HNTs-TZ (Z = 50, 60, 70, 80) were prepared. Effect of modification conditions on the phase composition, microstructure, surface functional groups, specific surface area, etc. of HNTs were investigated. Mild alkaline treatment conditions (4 M NaOH, 4 h, <= 70 degrees C) effectively enhanced the specific surface area and pore volume of HNTs while preserving their tubular morphology, and improving their adsorption capacities toward methylene blue (MB). Severe modification conditions (high NaOH concentration, prolonged reaction time, or elevated temperature) induced phase transformation to zeolite, accompanied by significant damage to the nanotube structure. Compared with the raw HNTs, the adsorption capacity of all modified HNTs-TZ samples were enhanced, the removal rate of MB by HNTs-TZ increased, and HNTs-T60 achieved the adsorption capacity of 20.0048 mg/g while maintaining a well-preserved tubular structure. Alkali treatment to HNTs was also beneficial to the synthesis of higher performance ZnO/HNTs composite photocatlyst.

Metal halide double perovskite Cs2AgInCl6, as an environmentally friendly direct-bandgap semiconductor, emerged as a strong candidate for a new generation of environmentally friendly and stable photocatalysts due to its long carrier lifetime, non-toxicity, and moisture resistance. However, due to parity-forbidden transitions and high sensitivity to water, achieving higher-efficiency photocatalytic degradation in water remained an urgent challenge. Our study presented for the first time a high-entropy Cs2AgInCl6 material Cs2(Na1/2Ag1/2)(Mn1/3In1/ 3Bi1/3)Cl6 (ANIBM DPNCs), which exhibited a remarkable visible light responsive and applicable to degrade pollutants in aqueous environments. In comparison with existing photocatalysts within the halide perovskite family, ANIBM DPNCs has been shown to exhibit higher photocatalytic efficiency and to demonstrate low sensitivity to various environments such as water and oxygen. Within 30 min, the RhB (10 mg/L) was completely degraded, while demonstrating comprehensive phase stability. Following four cycles of reuse and four months of atmospheric exposure, ANIBM DPNCs exhibited no structural alteration and retained its original photocatalytic performance. Notably, at elevated temperatures of 483 K, a remarkable resilience was exhibited, with the material retaining its original crystal structure. The results demonstrated that this material can be efficiently synthesized, is non-toxic, and exhibited outstanding photocatalytic performance and stability. This advancement successfully overcame the limitations of Cs2AgInCl6 in photocatalysis, which were previously restricted to ultraviolet response and degradation in ethanol solutions. Our research provided a solid foundation for the transformation of Cs2AgInCl6 from a low-efficiency luminescent material into a high-performance photocatalyst.

Ni1.5Mg1.5Al1-LDH/GO composite was synthesized by the co-precipitation method, and Ni1.5Mg1.5Al1-LDH/GO/g-C3N4 composites (NCG-X, X = 1, 3, 5) with varying mass ratio of GO to Ni1.5Mg1.5Al1-LDH/g-C3N4 were further constructed using electrostatic self-assembly technology. The photocatalytic degradation performance of the NCG-X composites toward ciprofloxacin (CIP) were influenced by the GO dosage, which regulated the microstructure, light-absorbing ability, and photo-electrochemical characteristics of the NCG-X composites. Compared to the pure g-C3N4 nanosheets and Ni1.5Mg1.5Al1-LDH/g-C3N4 composite, all NCG-X composites exhibited better photocatalytic performance. As the GO dosage raising, the photocatalytic performance of NCG-X composites initially improved but subsequently declined, and the NCG-3 composite (with GO dosage of 3 wt%) achieved the optimum photocatalytic performance. After 120 min of irradiation under visible light, 82.96% of CIP molecules (100 mL, 10 mg/L) were degraded by 0.03 g NCG-3 composite, whose reaction rate constant (0.01237 min-1) was 5.11, 2.35 and 1.75 times that of g-C3N4 nanosheets, MgAl-LDH/g-C3N4 composite and Ni1.5Mg1.5Al1-LDH/g-C3N4 composites, respectively. ·O2- and h+ were the predominant active species during the photocatalytic degradation process. Moreover, NCG-3 composite exhibited excellent universality for degrading organic contaminants like methyl orange, crystal violet, tetracycline, and methylene blue. This work provides a novel strategy for synthesizing high performance LDH/g-C3N4 composite photocatalyst via the modification of GO, and demonstrates the good perspective application of Ni1.5Mg1.5Al1-LDH/GO/g-C3N4 composite for the removal of organic pollutants in wastewater.

Abstract Hot oscillatory pressing (HOP) is an advanced sintering technique for producing ceramics with high mechanical performance; however, the underlying mechanism by which oscillatory pressure promotes densification and microstructural refinement remains inadequately understood. In this study, hysteresis analysis, adapted from metal fatigue models, was first applied to monitor the sintering behavior of Al2O3/TiCp composites in real time. Densification curves and hysteresis loops indicate that grain boundaries exhibit viscoelastic characteristics when grain boundary sliding dominates, and the oscillatory pressure optimizes sintering through cyclic softening and hardening. Initially, a softening process promotes grain boundary sliding to accelerate densification. As the density increases, energy dissipation due to internal friction induces a transition to cyclic hardening, thereby enabling simultaneous microstructural refinement and property enhancement. Microstructural analysis further reveals that, compared to static pressure, oscillatory pressure reduces grain boundary energy, inhibits grain growth, and enhances densification. The HOP-sintered composite exhibits a Vickers hardness of 21.8±0.3 GPa and flexural strength of 795±29 MPa, improvements of ~10% and 21.4%, respectively, over hot pressing (HP). This work establishes a mechanistic framework linking oscillatory pressure to microstructural evolution, providing theoretical support for the further development of HOP technology.

To prepare absorbing materials with strong reflection loss under lower-temperature conditions, multiple elements were introduced into SrFeO3-x based on the design of high-entropy components. The results showed that the absorbing material Sr(Cr1/5Mn1/5Fe1/5Co1/5Ti1/5)O3-x with strong reflection loss could be obtained by the solid-phase method at 1000 degrees C after Ti4+ was introduced into the B site. It is worth noting that at 1100 degrees C, the minimum reflection loss (RLmin) of the high-entropy ceramic is -43.43 dB, and the effective absorption bandwidth (EAB) is 5.04 GHz. At 1200-1300 degrees C, the RLmin values of high-entropy ceramics at 4.60 and 5.00 mm are -50.26 and -53.09 dB, respectively. Ti4+ plays a dual role as a "structural stabilizer" and "electromagnetic property regulator" in high-entropy ceramic absorbing materials. Its high diffusion coefficient realizes low-temperature sintering of materials, and its multiscale effect (lattice distortion and heterogeneous interface) leads to "strong wave-absorbing capacity". The excellent wave-absorbing performance is also attributed to the lattice distortion and large interface structure. Meanwhile, the design of Ti4+ and other B-site high-entropy elements to construct a magnetic-dielectric cooperative mechanism and oxygen vacancy defect engineering are both key to achieving excellent performance. In addition, high-entropy ceramics containing Ti4+ have high stability, which extends the service life of the material and provides a greater space for practical applications of absorbing materials.

Through loading Fe2O3 on the surface of halloysite nanotube (HNTs), Fe2O3/HNTs composites (FH-X, X = 10, 30, 40, 50, 70, representing the mass of Fe2O3 in the composite as 10 wt%, 30 wt%, 40 wt%, 50 wt% and 70 wt%), were successfully fabricated via sol-gel method. The effects of Fe2O3 content on the morphology, microstructure, photoelectric and photocatalytic performance of the FH-X composites were systematically investigated. The results indicated that the agglomeration of Fe2O3 nanoparticles was effectively alleviated, which were uniformly distributed on the surface of HNTs and decreased to around 5-15 nm in size. Consequently, FH-X composites exhibited superior adsorption and photocatalytic performance toward tetracycline hydrochloride (TC). With the increase of Fe2O3 content, the degradation of TC by the FH-X composites firstly increased and then decreased. Among them, FH-40 exhibited the optimal photocatalytic performance, which was likely due to the interfacial effect between Fe2O3 and HNTs. The sodium peroxydisulfate (PDS) was used as the auxiliary agent, 0.05 g of FH40 removed 94.80% of TC (100 mL, 40 mg/L) under visible light irradiation for 120 min in the Vis/PDS system. The reaction rate constant was 4.18 times that of Vis/FH-4. The effects of the PDS and photocatalyst dosage, pH value and initial concentration of TC on the removal rate of TC were also investigated. Additionally, FH-40 exhibited favorable stability, and excellent universality for degrading other organic pollutants. center dot SO4-, h+ and center dot O2-were the dominant active species during the photocatalysis. The possible degradation pathway and mechanism of TC were proposed.

Previous studies on the creep behavior of ceramic materials were primarily conducted under static loads. However, the majority of applications for ceramic materials are subject to dynamic loads, and there is a paucity of research conducted in this area. In this work, we report for the first time the creep behavior of Al2O3 whisker-reinforced ZrO2 composites under dynamic pressure. The results showed that the sample crept under dynamic pressure produced higher creep rate and lower activation energy compared to static pressure. By analyzing the creep data and microstructures, we showed that the dynamic pressure can enhance dislocation motion and transform the creep mechanism from diffusion-controlled grain-boundary sliding to dislocation-controlled grain-boundary sliding. This work provides a foundation for subsequent detailed studies of the creep behavior of ceramic materials under dynamic pressure.