Highly Enhanced Photoreductive Degradation of Polybromodiphenyl Ethers with g-C3N4/TiO2 under Visible Light Irradiation

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

	Highly Enhanced Photoreductive Degradation of Polybromodiphenyl Ethers with g-C3N4/TiO2 under Visible Light Irradiation
	Ye, Weidong 1; Shao, Yingying 1; Hu, Xuefeng2 ; Liu, Chulin 1; Sun, Chunyan 1
刊名	NANOMATERIALS
	2017-04-01
卷号	7 期号:4
关键词	g-C3N4 TiO2 photoreductive polybromodiphenyl ethers visible light
ISSN号	2079-4991
英文摘要	A series of high activity photocatalysts g-C3N4-TiO2 were synthesized by simple one-pot thermal transformation method and characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller (BET) surface area, and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis-DRS). The g-C3N4-TiO2 samples show highly improved photoreductive capability for the degradation of polybromodiphenyl ethers compared with g-C3N4 under visible light irradiation. Among all the hybrids, 0.02-C3N4-TiO2 with 2 wt % g-C3N4 loaded shows the highest reaction rate, which is 15 times as high as that in bare g-C3N4. The well-matched band gaps in heterojunction g-C3N4-TiO2 not only strengthen the absorption intensity, but also show more effective charge carrier separation, which results in the highly enhanced photoreductive performance under visible light irradiation. The trapping experiments show that holetrapping agents largely affect the reaction rate. The rate of electron accumulation in the conductive band is the rate-determining step in the degradation reaction. A possible photoreductive mechanism has been proposed.
研究领域[WOS]	Science & Technology - Other Topics ; Materials Science
关键词[WOS]	CHARGE SEPARATION ; PHOTOCATALYST ; DEBROMINATION ; NANOPARTICLES ; POLLUTANTS
收录类别	SCI
语种	英语
WOS记录号	WOS:000404048100005
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/22540]
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.Shaoxing Univ, Dept Chem, Shaoxing 312000, Zhejiang, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Envirenmental Proc & Ecol Re, Yantai 264003, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Ye, Weidong,Shao, Yingying,Hu, Xuefeng,et al. Highly Enhanced Photoreductive Degradation of Polybromodiphenyl Ethers with g-C3N4/TiO2 under Visible Light Irradiation[J]. NANOMATERIALS,2017,7(4).
APA	Ye, Weidong,Shao, Yingying,Hu, Xuefeng,Liu, Chulin,&Sun, Chunyan.(2017).Highly Enhanced Photoreductive Degradation of Polybromodiphenyl Ethers with g-C3N4/TiO2 under Visible Light Irradiation.NANOMATERIALS,7(4).
MLA	Ye, Weidong,et al."Highly Enhanced Photoreductive Degradation of Polybromodiphenyl Ethers with g-C3N4/TiO2 under Visible Light Irradiation".NANOMATERIALS 7.4(2017).