Marine oil spills pose persistent threats to ecosystems and economies. This review systematically evaluates research advancements in marine oil spill recovery over the past decade, focusing on the last five years. After outlining oil spill impacts and traditional strategy evolution, the paper analyzes breakthroughs in three mainstream approaches: physical/mechanical methods (highlighting nanostructured adsorbents), chemical methods (emphasizing eco-friendly dispersants and gelling agents), and biological methods (focusing on nano-enhanced and enzymatic bioremediation). Furthermore, the integration of emerging technologies—including artificial intelligence, remote sensing, and robotics—into intelligent response systems is explored. Finally, current challenges are summarized, proposing future research directions centered on the circular economy, smart materials, and predictive models to foster efficient, sustainable recovery strategies.
Using fruit waste as a dye adsorbent is another option to achieve environmental sustainability in terms of waste management, along with wastewater treatment. This study aimed to synthesize new adsorbents from durian shell and pineapple peel wastes, called durian shell powder (DP) and pineapple peel powder (PP), to investigate their performance for rhodamine B dye (RhB) adsorption, including their characterizations, adsorption isotherms, kinetics, and thermodynamic studies. Both DP and PP had amorphous structures, and their surfaces were coarse and heterogeneous. Carbon (C), oxygen (O), calcium (Ca), hydroxyl (O–H), methyl or methylene (C–H), carbonyl (C=O), cyclic alkene (C=C), and carboxyl (C–O) were the main chemical elements and functional groups found in DP and PP. XPS results from a high-resolution scan demonstrated three main elements of O 1s, C 1s, and N 1s. The pH pzc values of DP and PP were 2.96 and 2.67. DP demonstrated a higher RhB removal efficiency and adsorption capacity of 87.11% and 2.61 mg/g than PP at 72.18% and 1.44 mg/g by using a small adsorbent dosage, short contact time, and low temperature. Moreover, DP and PP could be reused for more than three cycles with high RhB removal efficiencies of 73.10% and 55.39%, respectively. Freundlich and pseudo-second-order kinetic models well explained their adsorption patterns and mechanisms relating to heterogeneous adsorption and pseudo-second-order behavior. Thermodynamic studies showed an exothermic process. Therefore, DP and PP were chosen as low-cost adsorbents with a simple synthesis method and moderate adsorption performance for RhB adsorption from fruit wastes.
This study screens construction and demolition waste (CDW)-based geopolymer composites containing a fixed graphene oxide (GO) dosage and varying graphene (G) contents to examine mechanical, electrochemical, and cradle-to-gate environmental trade-offs. Reduced-size specimens were tested in compression, while powder-coated carbon-paper electrodes were evaluated by cyclic voltammetry in a three-electrode configuration. Low graphene loading retained a compressive strength of approximately 15.2 MPa for G1. Across G0–G4, the apparent CV-derived gravimetric capacitance increased from approximately 280 to 460 F/g at 5 mV/s. These values are reported as uncorrected screening estimates because the bare carbon-paper background was not subtracted and the deposited active mass was not independently verified. G5 was excluded from candidate consideration because its compressive strength decreased to approximately 2 MPa, representing an approximately 87% reduction relative to G0. The cradle-to-gate global warming potential, reported per 1 m3 of bulk composite, increased from approximately 478 kg CO2-eq for the plain geopolymer to 1219 kg CO2-eq for G1 and 5924 kg CO2-eq for G5, primarily because of G and GO production. G1 represented the most favorable screening compromise among the graphene-containing formulations, but its strength limits it to non-structural or semi-structural material-screening contexts. The study identifies formulation-level trade-offs and future testing requirements rather than demonstrating a structural supercapacitor or a field-ready energy-storage material.
Using fruit waste as a dye adsorbent is another option to achieve environmental sustainability in terms of waste management, along with wastewater treatment. This study aimed to synthesize new adsorbents from durian shell and pineapple peel wastes, called durian shell powder (DP) and pineapple peel powder (PP), to investigate their performance for rhodamine B dye (RhB) adsorption, including their characterizations, adsorption isotherms, kinetics, and thermodynamic studies. Both DP and PP had amorphous structures, and their surfaces were coarse and heterogeneous. Carbon (C), oxygen (O), calcium (Ca), hydroxyl (O–H), methyl or methylene (C–H), carbonyl (C=O), cyclic alkene (C=C), and carboxyl (C–O) were the main chemical elements and functional groups found in DP and PP. XPS results from a high-resolution scan demonstrated three main elements of O 1s, C 1s, and N 1s. The pHpzc values of DP and PP were 2.96 and 2.67. DP demonstrated a higher RhB removal efficiency and adsorption capacity of 87.11% and 2.61 mg/g than PP at 72.18% and 1.44 mg/g by using a small adsorbent dosage, short contact time, and low temperature. Moreover, DP and PP could be reused for more than three cycles with high RhB removal efficiencies of 73.10% and 55.39%, respectively. Freundlich and pseudo-second-order kinetic models well explained their adsorption patterns and mechanisms relating to heterogeneous adsorption and pseudo-second-order behavior. Thermodynamic studies showed an exothermic process. Therefore, DP and PP were chosen as low-cost adsorbents with a simple synthesis method and moderate adsorption performance for RhB adsorption from fruit wastes.
Digital Product Passports (DPPs) are gradually being made mandatory under the European Union’s Ecodesign for Sustainable Products Regulation (ESPR). Whether they succeed in promoting sustainable consumption will depend on how well consumers engage with the information they provide. To date, regulatory and supply chain perspectives on DPPs have been widely researched. However, the emerging literature on DPPs from a consumer perspective remains fragmented with a predominantly single-country focus and few studies delivering insights into the psychological drivers of consumer acceptance of DPPs from a holistic perspective. This paper seeks to investigate drivers of consumer intention to use DPPs using the Extended Technology Acceptance Model. The model is extended to include Subjective Knowledge and Trust. An online cross-sectional consumer survey of 1488 respondents across four European markets (Denmark, Spain, Sweden and Switzerland) was analysed using Partial Least Squares-Structural Equation Modelling. Results show that DPPs are poorly known (22.4% of respondents were aware of them) but positively evaluative in most other dimensions. The Extended TAM explains a variance of 76% (R2=0.76) in Intention to Use. Trust has the strongest direct effect on Perceived Ease of Use (β=0.66). Trust also has an important effect on Usefulness. Subjective Knowledge has an effect on Usefulness through Trust. Perceived Usefulness has the strongest direct effect on Intention to Use. We posit that there is a sequence to information circulated, with awareness and credibility signals preceding usefulness. The paper provides cross-national evidence on DPP acceptance and finds Trust as an important adoption mechanism, broadening technology-acceptance theory and providing practical guidance for policymakers and firms on the sequencing of awareness, credibility and usefulness messaging within the framework of DPPs transitioning to mandatory implementation.
