Photocatalysis is one of the most environment-friendly and technologically viable advanced oxidation processes. Compared to conventional thermal, biological, and physicochemical treatments, photocatalytic processes have more moderate reaction conditions and higher efficiency. They are a promising technology for the treatment of dye wastewaters, particularly those that have toxic and high organic content. Matrix-based photocatalysts have been extensively studied to enhance their efficiency. This paper is a review of recently published literature on matrix-based clay photocatalysts – e.g., bentonite, attapulgite, hydrotalcite, etc. – decolorizing dye wastewaters.
Clays for heterogeneous photocatalytic decolorization of wastewaters contaminated with synthetic dyes: a review
Guolin Jing, Zhengnan Sun, Ping Ye, Shirong Wei, Yu Liang; Clays for heterogeneous photocatalytic decolorization of wastewaters contaminated with synthetic dyes: a review. Water Practice and Technology 1 June 2017; 12 (2): 432–443. doi: https://doi.org/10.2166/wpt.2017.046
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