Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4-TiO2 hybrids

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

	Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4-TiO2 hybrids
	Chang, Fei 1; Zhang, Jian 1; Xie, Yunchao 1; Chen, Juan 1; Li, Chenlu 1; Wang, Jie 1; Luo, Jieru 1; Deng, Baoqing 1; Hu, Xuefeng2
刊名	APPLIED SURFACE SCIENCE
	2014-08-30
卷号	311 页码:574-581
关键词	Exfoliated g-C3N4 nanosheets TiO2 Hybrid Photocatalyst Mechanism
ISSN号	0169-4332
通讯作者	Chang, F (reprint author), Shanghai Univ Sci & Technol, Sch Environm & Architecture, Jun Gong Rd 516, Shanghai 200093, Peoples R China. feichang@usst.edu.cn ; xfhu@yic.ac.cn
产权排序	[Chang, Fei; Zhang, Jian; Xie, Yunchao; 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	A series of TiO2 hybrids composited with exfoliated g-C3N4 nanosheets (CNs) were successfully synthesized through a facile sal-gel method and fully characterized by X-ray diffraction patterns (XRD), Fourier transform-infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectra (UV-vis DRS). The CNs-TiO2 hybrids were exposed to visible light irradiation and showed much higher catalytic capability toward degrading dye rhodamine B (RhB) comparing with bare TiO2 and N-TiO2. The sample CNs-TiO2-0.05 exhibited the largest apparent reaction rate constant among all CNs-TiO2 hybrids, which was 2.4 times and 7.0 times as high as bare TiO2 and N-TiO2, respectively. The enhanced catalytic efficiency could be mainly attributed to the well-matched band gap structure with heterojunction interface, suitable specific surface area, and favorable optical property. In addition, active species trapping experiments were conducted, revealing that photoinduced holes (hi) had a severe influence on catalytic outcome, through which a possible catalytic mechanism was finally realized and proposed. (C) 2014 Elsevier B.V. All rights reserved.
英文摘要	A series of TiO2 hybrids composited with exfoliated g-C3N4 nanosheets (CNs) were successfully synthesized through a facile sal-gel method and fully characterized by X-ray diffraction patterns (XRD), Fourier transform-infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and UV-vis diffuse reflectance spectra (UV-vis DRS). The CNs-TiO2 hybrids were exposed to visible light irradiation and showed much higher catalytic capability toward degrading dye rhodamine B (RhB) comparing with bare TiO2 and N-TiO2. The sample CNs-TiO2-0.05 exhibited the largest apparent reaction rate constant among all CNs-TiO2 hybrids, which was 2.4 times and 7.0 times as high as bare TiO2 and N-TiO2, respectively. The enhanced catalytic efficiency could be mainly attributed to the well-matched band gap structure with heterojunction interface, suitable specific surface area, and favorable optical property. In addition, active species trapping experiments were conducted, revealing that photoinduced holes (hi) had a severe influence on catalytic outcome, through which a possible catalytic mechanism was finally realized and proposed. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter
研究领域[WOS]	Chemistry ; Materials Science ; Physics
关键词[WOS]	GRAPHITIC CARBON NITRIDE ; VISIBLE-LIGHT ; TEMPERATURE ; NANOSHEETS ; HETEROJUNCTIONS ; DEGRADATION ; REDUCTION ; FILMS
收录类别	SCI
语种	英语
WOS记录号	WOS:000339037200080
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8718]
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,Zhang, Jian,Xie, Yunchao,et al. Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4-TiO2 hybrids[J]. APPLIED SURFACE SCIENCE,2014,311:574-581.
APA	Chang, Fei.,Zhang, Jian.,Xie, Yunchao.,Chen, Juan.,Li, Chenlu.,...&Hu, Xuefeng.(2014).Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4-TiO2 hybrids.APPLIED SURFACE SCIENCE,311,574-581.
MLA	Chang, Fei,et al."Fabrication, characterization, and photocatalytic performance of exfoliated g-C3N4-TiO2 hybrids".APPLIED SURFACE SCIENCE 311(2014):574-581.