Journal of environmental chemical engineering, Год журнала: 2024, Номер unknown, С. 115160 - 115160
Опубликована: Дек. 1, 2024
Язык: Английский
The Science of The Total Environment, Год журнала: 2024, Номер 958, С. 178072 - 178072
Опубликована: Дек. 17, 2024
Язык: Английский
Процитировано
4
Materials, Год журнала: 2025, Номер 18(5), С. 1084 - 1084
Опубликована: Фев. 28, 2025
This study addresses environmental concerns by utilizing banana peel waste to develop innovative adsorbent materials for wastewater treatment, aligning with circular economy principles. Spherical beads were synthesized from sodium alginate mixed various peel-based materials, including pure powder (PBP), activated carbon (AC), and magnetic (MAC). These evaluated their efficiency in removing tetracycline (TC) hexavalent chromium (Cr(VI)) as model pollutants representing antibiotics heavy metals, respectively. Characterization of the revealed functional groups thermal stability conducive effective adsorption. Adsorption trials demonstrated that MAC achieved highest removal efficiencies, up 92% TC 79% Cr(VI). The adsorption process followed pseudo-second-order kinetics Langmuir isotherms. Remarkably, retained a significant capacity across reuse cycles, indicating regenerative potential. Comparisons other adsorbents highlight competitive performance these materials. results emphasize potential peel-derived cost-effective, sustainable solutions mitigating emerging water systems, promoting valorization protection. research demonstrates novel approach sequential without intermediate regeneration, showing can effectively remove both (VI) successive cycles. finding is particularly because it reveals presence previously adsorbed actually enhanced beads' second cycle, suggesting synergistic effect had not been reported literature. innovations contribute meaningfully treatment technologies, offering new insights into development multi-functional agricultural
Язык: Английский
Процитировано
0
International Journal of Environmental Research, Год журнала: 2025, Номер 19(4)
Опубликована: Апрель 4, 2025
Язык: Английский
Процитировано
0
Macromolecular Chemistry and Physics, Год журнала: 2025, Номер unknown
Опубликована: Апрель 14, 2025
Abstract Heavy metal contamination in water threatens human health and ecological security, necessitating efficient sustainable remediation technologies. Adsorption is a widely used method due to its cost‐effectiveness, high selectivity, ease of operation. Among various adsorbents, conjugated microporous polymers (CMPs) have shown great potential for heavy removal, benefiting from their π‐conjugated structures, surface area, tunable pore sizes, strong ion interactions. However, challenges remain synthesis material properties. Extensive postsynthetic modifications may introduce structural complexity compromise adsorption performance, while excessive functionalization can lead blockage, reducing available sites. Additionally, inadequate distribution or low grafting density chelating groups weaken binding. Further include enhancing developing eco‐friendly regeneration methods, improving stability complex environments, achieving large‐scale production. Addressing these issues requires optimizing synthetic strategies, precisely incorporating functional groups, structure control. This review summarizes recent advances CMP‐based adsorption, discusses mechanisms optimization, identifies future research directions advance practical application purification.
Язык: Английский
Процитировано
0
Agriculture, Год журнала: 2024, Номер 14(9), С. 1631 - 1631
Опубликована: Сен. 18, 2024
This study aims to explore the effects of biochar ageing on its surface properties and bioavailability heavy metals in soil. The was subjected chemical oxidation/dry–wet cycles (CDWs), oxidation/freeze–thaw (CFTs), natural (NT) analyze changes elemental composition, pH, specific area, pore volume, functional groups. Fourier transform infrared spectroscopy (FTIR) scanning electron microscopy (SEM) were applied characterize groups microstructure, BCR sequential extraction method employed demonstrate fractionation distribution Cu, Cd, Pb. results showed that CDWs CFTs treatments significantly reduced carbon content (with a maximum reduction 47.70%), increased oxygen (up 49.17%), notably area volume. pH decreased from 9.91 4.92 4.99 for CFTs, respectively. FTIR analysis indicated notable hydroxyl carboxyl groups, SEM revealed severe microstructural damage after treatments. metal exchangeable Pb treatment, reaching 31.40%, 5.25%, 6.79%, In conclusion, affects physicochemical increases metals, raising concerns about long-term remediation effectiveness.
Язык: Английский
Процитировано
2
Separation Science and Technology, Год журнала: 2024, Номер unknown, С. 1 - 21
Опубликована: Сен. 16, 2024
Язык: Английский
Процитировано
2
Journal of environmental chemical engineering, Год журнала: 2024, Номер unknown, С. 115160 - 115160
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
0