Construction of exfoliated g-C3N4 nanosheets-BiOCl hybrids with enhanced photocatalytic performance

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Construction of exfoliated g-C3N4 nanosheets-BiOCl hybrids with enhanced photocatalytic performance
	Chang, Fei 1; Xie, Yunchao 1; Zhang, Jian 1; Chen, Juan 1; Li, Chenlu 1; Wang, Jie 1; Luo, Jieru 1; Deng, Baoqing 1; Hu, Xuefeng2
刊名	RSC ADVANCES
	2014
卷号	4 期号:54 页码:28519-28528
关键词	GRAPHITIC CARBON NITRIDE VISIBLE-LIGHT IRRADIATION RHODAMINE-B HETEROJUNCTION PHOTOCATALYSTS HETEROGENEOUS PHOTOCATALYSIS HYDROTHERMAL SYNTHESIS HYDROGEN-PRODUCTION METHYL-ORANGE DEGRADATION EVOLUTION
ISSN号	2046-2069
通讯作者	Chang, F (reprint author), Shanghai Univ Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China. feichang@usst.edu.cn ; xfhu@yic.ac.cn
产权排序	[Chang, Fei; Xie, Yunchao; Zhang, Jian; Chen, Juan; Li, Chenlu; Wang, Jie; Luo, Jieru; Deng, Baoqing] Shanghai Univ Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China; [Hu, Xuefeng] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China
中文摘要	Exfoliated g-C3N4 nanosheets (CNs) were composited with bismuth oxychloride (BiOCl) to fabricate a series of hybrids via a facile chemical deposition-precipitation method in this investigation. The as-synthesized BiOCl-CNs hybrids were then fully characterized by a collection of analytical techniques. It was obviously observed that CNs were in intimate contact with hierarchical BiOCl flowerlike units to form heterojunction structures, which facilitates transfer and efficient separation of photoinduced electron-hole pairs, thus greatly increasing catalytic activity upon visible light irradiation. Together with other merits such as enlarged specific surface area, favorable optical properties, and suitable energy-band structures, these robust BiOCl-CNs hybrids showed significantly enhanced photocatalytic performance towards Rhodamine B (RhB) dye removal. Under identical conditions, the apparent photocatalytic reaction rate of the best hybrid BiOCl-CNs-3% was about 2.1 and 26.6 times as high as those of BiOCl and CNs alone, respectively. A possible photocatalytic mechanism was also proposed by means of active species trapping measurements, revealing that superoxide radicals (O-2(-)) played a crucial role during the catalytic process.
英文摘要	Exfoliated g-C3N4 nanosheets (CNs) were composited with bismuth oxychloride (BiOCl) to fabricate a series of hybrids via a facile chemical deposition-precipitation method in this investigation. The as-synthesized BiOCl-CNs hybrids were then fully characterized by a collection of analytical techniques. It was obviously observed that CNs were in intimate contact with hierarchical BiOCl flowerlike units to form heterojunction structures, which facilitates transfer and efficient separation of photoinduced electron-hole pairs, thus greatly increasing catalytic activity upon visible light irradiation. Together with other merits such as enlarged specific surface area, favorable optical properties, and suitable energy-band structures, these robust BiOCl-CNs hybrids showed significantly enhanced photocatalytic performance towards Rhodamine B (RhB) dye removal. Under identical conditions, the apparent photocatalytic reaction rate of the best hybrid BiOCl-CNs-3% was about 2.1 and 26.6 times as high as those of BiOCl and CNs alone, respectively. A possible photocatalytic mechanism was also proposed by means of active species trapping measurements, revealing that superoxide radicals (O-2(-)) played a crucial role during the catalytic process.
学科主题	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	GRAPHITIC CARBON NITRIDE ; VISIBLE-LIGHT IRRADIATION ; RHODAMINE-B ; HETEROJUNCTION PHOTOCATALYSTS ; HETEROGENEOUS PHOTOCATALYSIS ; HYDROTHERMAL SYNTHESIS ; HYDROGEN-PRODUCTION ; METHYL-ORANGE ; DEGRADATION ; EVOLUTION
收录类别	SCI
语种	英语
WOS记录号	WOS:000339396000035
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8783]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Shanghai Univ Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Chang, Fei,Xie, Yunchao,Zhang, Jian,et al. Construction of exfoliated g-C3N4 nanosheets-BiOCl hybrids with enhanced photocatalytic performance[J]. RSC ADVANCES,2014,4(54):28519-28528.
APA	Chang, Fei.,Xie, Yunchao.,Zhang, Jian.,Chen, Juan.,Li, Chenlu.,...&Hu, Xuefeng.(2014).Construction of exfoliated g-C3N4 nanosheets-BiOCl hybrids with enhanced photocatalytic performance.RSC ADVANCES,4(54),28519-28528.
MLA	Chang, Fei,et al."Construction of exfoliated g-C3N4 nanosheets-BiOCl hybrids with enhanced photocatalytic performance".RSC ADVANCES 4.54(2014):28519-28528.