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Enhanced Ethylene Photodegradation Performance of g‐C 3 N 4 –Ag 3 PO 4 Composites with Direct Z‐Scheme Configuration
Author(s) -
Chen Xuxing,
Huang Xintang,
Yi Zhiguo
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201404284
Subject(s) - photodegradation , composite number , photocatalysis , ethylene , aqueous solution , degradation (telecommunications) , materials science , fabrication , semiconductor , composite material , chemical engineering , chemistry , catalysis , optoelectronics , organic chemistry , computer science , pathology , medicine , telecommunications , alternative medicine , engineering
Photocatalytic oxidation of ethylene continues to be a challenge at the frontier of chemistry. In a previous report, a simple Ag 3 PO 4 semiconductor material was shown to have strong photooxidative properties and efficiently oxidised water and decomposed organics in aqueous solution under visible‐light illumination. Herein, its effects on the photo‐oxidation of gaseous C 2 H 4 were investigated by fabricating graphitic C 3 N 4 –Ag 3 PO 4 composite semiconductors with direct Z‐scheme configuration. It was found that both the ethylene photo‐oxidative activity and the stability of Ag 3 PO 4 are considerably improved by fabrication of Z‐scheme composites. Moreover, stable C 2 H 4 photo‐oxidation activity could be obtained by treating the composite at 450 °C for 3 h after long‐term operation. From the point of view of environmental pollutant cleanup, the present technique avoids the side reaction of oxidising water and will be valuable for further investigations on both Ag 3 PO 4 and CH degradation.