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Synthesis and Photocatalytic Performance of Attapulgite/g-C3N4-AgFeO2 Composites
Author NameAffiliationE-mail
XIE Deng-Yu Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China  
JIANG Yi Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China  
JI Yuan-Yuan Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China  
YING Ming-Hui Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China  
SHENG Zhen-Huan Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China  
ZHAO Wei Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China  
YIN Jing-Zhou Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China  
LI Qiao-Qi Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China  
ZHONG Hui Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China  
ZHANG Li-Li Jiangsu Key Laboratory for Low-Dimension Materials, Jiangsu Environmental Engineering Laboratory for Environmental Functional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China zll@hytc.edu.cn 
Abstract: Attapulgite (ATP) was chosen as the matrix of g-C3N4 thin layer and AgFeO2 nanoparticles to fabricate a series of ATP/g-C3N4-AgFeO2-Y composites presenting both magnetic separation and high photocatalytic activity by in-situ chemical method, where Y stands for the mass percentage of ATP/g-C3N4 in the composite (Y=wATP/g-C3N4/(wATP/g-C3N4+wAgFO2)×100%). XRD, SEM, BET, UV-Vis, PL and ICP were used to characterize the structure and physicochemical properties of the products. Photodegradation of acid red G (ARG) was chosen as target to investigate the photocatalytic property of all the products. It was found that g-C3N4 thin layer was uniformly fixed on the surface of the ATP by forming a Si-O-C bond, while the AgFeO2 nanoparticles were deposited on the surface of ATP/g-C3N4 uniformly to form a type Z heterojunction structure. ATP/g-C3N4-AgFeO2-Y presented higher visible light photocatalytic performance than that of ATP/g-C3N4 and AgFeO2. The photocatalytic activity of ATP/g-C3N4-AgFeO2-Y changed with the content of ATP/g-C3N4, and when Y=57%, ATP/g-C3N4-AgFeO2-57% shows the best photocatalytic activity. The degradation rate of 20 mg·L-1 acid red G was up to 97.4%, and it remained at 94.2% after 4 cycles when catalyzed by ATP/g-C3N4-AgFeO2-57%. The photocatalytic mechanism was studied by free radical trapping experiments. It was found that·O2- is the main active species in the photocatalytic process.
Keywords: physical chemistry  inorganic nonmetallic materials  visible light photocatalysis  attapulgite  g-C3N4  AgFeO2
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XIE Deng-Yu,JIANG Yi,JI Yuan-Yuan,YING Ming-Hui,SHENG Zhen-Huan,ZHAO Wei,YIN Jing-Zhou,LI Qiao-Qi,ZHONG Hui,ZHANG Li-Li.Synthesis and Photocatalytic Performance of Attapulgite/g-C3N4-AgFeO2 Composites[J].Chinese Journal of Inorganic Chemistry,2019,35(2):236-244.
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Chinese Journal of Inorganic Chemistry