Efficient elimination of organic and inorganic pollutants by biochar and biochar-based materials

Biochar, Год журнала: 2020, Номер 2(1), С. 47 - 64

Опубликована: Март 1, 2020

Язык: Английский

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Synthesis and fabrication of g-C3N4-based materials and their application in elimination of pollutants

The Science of The Total Environment, Год журнала: 2020, Номер 731, С. 139054 - 139054

Опубликована: Май 5, 2020

Язык: Английский

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Modified biochar: synthesis and mechanism for removal of environmental heavy metals

Carbon Research, Год журнала: 2022, Номер 1(1)

Опубликована: Июнь 18, 2022

Abstract With social progress and industrial development, heavy metal pollution in water soils environment is becoming more serious. Although biochar a low-cost environmentally friendly adsorbent for ions, its adsorption immobilization efficiency still need to be improved. As an upgraded version of biochar, modified has attracted extensive attention the scientific community. This review summarized recent research on treatment methods pollutants using biochar. The features advantages modification techniques such as physical modification, chemical biological other categories were discussed. mechanism removing metals from soil by was summarized. It found that had better performance after which provided higher surface areas functional groups, enough binding sites combine ions. Biochar very promising candidate environment. Furthermore, some high valent ions could reduced low metals, Cr(VI) reduction Cr(III), form precipitates in-situ sorption-reduction-precipitation strategy. However, it direction efforts develop high-efficiency with low-cost, sorption capacity, photocatalytic performance, no secondary future.

Язык: Английский

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Recent advances in applications of low-cost adsorbents for the removal of heavy metals from water: A critical review

Separation and Purification Technology, Год журнала: 2021, Номер 278, С. 119510 - 119510

Опубликована: Авг. 21, 2021

Язык: Английский

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Semiconducting Metal–Organic Frameworks Decorated with Spatially Separated Dual Cocatalysts for Efficient Uranium(VI) Photoreduction

Advanced Functional Materials, Год журнала: 2022, Номер 32(20)

Опубликована: Март 25, 2022

Abstract Reduction of soluble hexavalent uranium (U(VI)) to sparingly tetravalent (U(IV)) with semiconductor photocatalysts is recognized as a novel, green, and simple U‐extraction method. Furthermore, effective charge separation utilization are critical factors achieve high‐efficiency U(VI) photoreduction. Herein, UiO‐66‐based heterostructured photocatalyst (MnO x /UiO‐66/Ti 3 C 2 T ) spatially separated dual cocatalysts nanoparticles Ti MXene nanosheets) successfully developed for efficient photoreduction without sacrificial agents. As co‐catalysts, MnO favor the trapping holes, while nanosheets tend collect electrons. Consequently, photogenerated holes electrons flow into out photocatalyst, respectively, achieving required by remove U(VI). Impressively, removal ratio via reaches 98.4% in solution after 60 min, photoreaction rate constant 0.0948 min −1 . Moreover, exhibits brilliant extraction capacity various wastewater U(VI)‐spiked real seawater. Further mechanistic studies indicates that transferred from conduction band UiO‐66 reduce generate ·O – , further leading stable crystal phase (UO )O ·2H O. extracted oxidize water.

Язык: Английский

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Removal of heavy metals by covalent organic frameworks (COFs): A review on its mechanism and adsorption properties

Journal of environmental chemical engineering, Год журнала: 2021, Номер 9(4), С. 105687 - 105687

Опубликована: Май 18, 2021

Язык: Английский

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The photocatalytic reduction of U(VI) into U(IV) by ZIF-8/g-C3N4 composites at visible light

Environmental Research, Год журнала: 2020, Номер 196, С. 110349 - 110349

Опубликована: Окт. 28, 2020

Язык: Английский

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Efficient elimination of environmental pollutants through sorption-reduction and photocatalytic degradation using nanomaterials

Frontiers of Chemical Science and Engineering, Год журнала: 2020, Номер 14(6), С. 1124 - 1135

Опубликована: Апрель 13, 2020

Язык: Английский

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Current development of geopolymer as alternative adsorbent for heavy metal removal

Environmental Technology & Innovation, Год журнала: 2020, Номер 18, С. 100684 - 100684

Опубликована: Фев. 19, 2020

Язык: Английский

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Purification of uranium-contaminated radioactive water by adsorption: A review on adsorbent materials

Separation and Purification Technology, Год журнала: 2021, Номер 278, С. 119675 - 119675

Опубликована: Сен. 6, 2021

Язык: Английский

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