Synergistic enhancement of redox pairs and functional groups for the removal of phenolic organic pollutants by activated PMS using silica-composited biochar: Mechanism and environmental toxicity assessment

Chemosphere, Год журнала: 2023, Номер 337, С. 139441 - 139441

Опубликована: Июль 6, 2023

Язык: Английский

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Sludge-derived biochar applied in peroxymonosulfate (PMS) activation: Reactive oxygen species (ROS) dominated process and characteristics

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(6), С. 111365 - 111365

Опубликована: Ноя. 1, 2023

Язык: Английский

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Highly efficient ultrasound-driven Cu-MOF/ZnWO4 heterostructure: An efficient visible-light photocatalyst with robust stability for complete degradation of tetracycline

Ultrasonics Sonochemistry, Год журнала: 2023, Номер 100, С. 106624 - 106624

Опубликована: Окт. 9, 2023

Metal-organic frameworks (MOFs) are a significant class of porous, crystalline materials composed metal ions (clusters) and organic ligands. The potential use copper MOF (Cu-BTC) for the sonophotocatalytic degradation Tetracycline (TC) antibiotic was investigated in this study. To enhance its catalytic efficiency, S-scheme heterojunction created by combining Cu-BTC with Zinc tungstate (ZnWO4), employing an ultrasound-assisted hydrothermal method. results demonstrated that Cu-BTC/ZnWO4 exhibited complete removal TC within 60 min under simultaneous irradiation visible light ultrasound. Interestingly, using showed superior efficiency (with synergy index ∼0.70) compared to individual sonocatalytic photocatalytic processes same heterojunction. This enhancement activity can be attributed formation between ZnWO4. Within heterojunction, electrons migrated from ZnWO4, facilitated interface two materials. Under irradiation, built-in electric field, band edge bending, coulomb interaction synergistically inhibited recombination electron-hole pairs. Consequently, accumulated holes ZnWO4 actively participated redox reactions, generating free radicals effectively attacked molecules. study offers valuable perspectives on application newly developed photocatalyst, demonstrating effectiveness efficiently eliminating diverse recalcitrant pollutants via degradation.

Язык: Английский

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Polyaniline-based adsorbents for water treatment: Roles of low-cost materials and 2D materials

Chemical Engineering Journal, Год журнала: 2023, Номер 478, С. 147506 - 147506

Опубликована: Ноя. 18, 2023

Access to clean water and sanitization is crucial all life on Earth, has been listed among the United Nations Sustainable Development Goals. Adsorption a simple economical technology for purification. However, conventional adsorbents, such as zeolites, biochar, activated carbon clay minerals, have some limitations, particularly their unsatisfactory adsorption efficiencies. Polyaniline (PANI), stable conducting polymer with facile synthesis, nitrogen-rich functional groups, tuneable morphology, promising candidate adsorbing various pollutants. This review attempts critically assess PANI-based adsorbents in terms of advantages, disadvantages, separation mechanisms pollutant removal. Low-cost natural waste materials, emerging ultrathin 2D nanosheets can also be adsorbents. We highlight significant roles low-cost materials well enhancing performance Combining or not only address challenges (e.g., low surface areas thus efficiencies), but employ synergistic effects these adsorptive materials. As result, hybrid enhanced functionality, improved removal performance. Finally, we offer insightful perspectives future research directions developing

Язык: Английский

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S-scheme SnO/TiO2 heterojunction with high hole mobility for boosting photocatalytic degradation of gaseous benzene

Chemical Engineering Journal, Год журнала: 2023, Номер 478, С. 147345 - 147345

Опубликована: Ноя. 13, 2023

Язык: Английский

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