Journal
CHEMOSPHERE
Volume 280, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2021.130907
Keywords
Non-spherical semiconductors; Photocatalytic degradation; Organic pollutants; Synthesis; Mechanism
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The article discusses the significance of removing organic contaminants from water sources due to their carcinogenicity and mutagenicity, highlighting the limitations of conventional water decontamination methods and the research progress on using non-spherical semiconductors in photocatalytic degradation of organic pollutants. It also touches upon the mechanisms and factors influencing photocatalytic reactions, as well as the current challenges and future research perspectives in this field.
Because of their carcinogenicity and mutagenicity, the elimination of organic contaminants from surface and subsurface water is a subject of environmental significance. Conventional water decontamination approaches such as membrane separation, ultrafiltration, adsorption, reverse osmosis, coagulation, etc., have relatively higher operating costs and can generate highly toxic secondary contaminants. On the other hand, heterogeneous photocatalysis, an advanced oxidation process (AOP), is considered a clean and cost-effective process for organic pollutants degradation. Owing to their distinctive structure and physicochemical properties non-spherical semiconductors have gained considerable limelight in the photocatalytic degradation of organic contaminants. The current review briefly introduces a wide range of organic water contaminants. Recent advances in non-spherical semiconductor assembly and their photocatalytic degradation applications are highlighted. The underlying mechanism, fundamentals of photocatalytic reactions, and the factors affecting the degradation performance are also alluded including the current challenges and future research perspectives.
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