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Silver‐Loaded Bio‐Structured Carbon/Cadmium Sulfide Lamellar Composites with Enhanced Photocatalysis under Visible Light
Author(s) -
Yan Qianyu,
Chen Feng,
You Yaying,
Chen Zhigang
Publication year - 2020
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202000115
Subject(s) - photocatalysis , materials science , lamellar structure , visible spectrum , composite number , cadmium sulfide , composite material , hydrothermal circulation , absorption (acoustics) , chemical engineering , carbon fibers , degradation (telecommunications) , sulfide , chemistry , metallurgy , catalysis , optoelectronics , organic chemistry , engineering , telecommunications , computer science
A silver (Ag)‐loaded biostructured carbon/cadmium sulfide (CdS) lamellar composite photocatalyst was synthesized using a hydrothermal and photodeposition method. Camellia petals functioned both as a biological layered template and as a source of carbon. The prepared composite photocatalyst demonstrated good absorption under visible light and exhibited excellent photocatalytic degradation performance. The photocatalytic degradation efficiency of the obtained composites substantially improved compared with pure CdS. The 5 wt.‐% Ag‐loaded C/CdS sample exhibited the highest photocatalytic activity, reaching 96.5 % after 180 min, which was 8.7 times that of pure CdS. Specifically, the biocarbon sheet enhanced the absorption of visible light. Furthermore, the high electrical conductivity of Ag can effectively transfer and separate photogenerated electrons and holes, thus enhancing both photocatalytic performance and stability.