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- W3179705488 abstract "A conjugated polymer polypyrrole (PPy) was used to decorate the ZnTi hydrotalcite (ZnTi-LDH) for constructing an organic–inorganic PPy/ZnTi-LDH composite by a facile in-situ oxidation polymerization. It was found that the as-prepared composite displayed a superior photocatalytic performance and excellent stability under visible light irradiation, which Cr(VI) reduction efficiency (99.72% for 35 min) was around 53 and 12 times higher than those of the pristine ZnTi-LDH and pure PPy, respectively, and still maintained 95.10% even after 5th cycles. The dramatically enhanced photocatalytic performances were attributed to the beneficial combination of the ZnTi-LDH stratified structure and conductive PPy, which effectively facilitated charge transfer, restrained recombination, and increased visible-light absorption. Particularly, PPy as a remarkable conductive polymer, played a crucial role in the Cr(VI) reduction, which not only was a light acceptor to produce photo-generated charge carriers but also provided a good electron transport path to accelerate the separation and migration of electron-hole pairs to improve the photoreduction performances. Finally, possible photocatalytic reaction mechanism of the PPy/ZnTi-LDH was also proposed." @default.
- W3179705488 created "2021-07-19" @default.
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- W3179705488 date "2021-08-01" @default.
- W3179705488 modified "2023-10-14" @default.
- W3179705488 title "Polypyrrole decorated ZnTi hydrotalcite with enhanced adsorption and Cr(VI) photoreduction activity under visible-light" @default.
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- W3179705488 doi "https://doi.org/10.1016/j.apt.2021.06.021" @default.
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