Photo-Fenton Degradation of AO7 and Photocatalytic Reduction of Cr(VI) over CQD-Decorated BiFeO3 Nanoparticles Under Visible and NIR Light Irradiation

doi:10.1186/s11671-019-3206-5

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	Photo-Fenton Degradation of AO7 and Photocatalytic Reduction of Cr(VI) over CQD-Decorated BiFeO3 Nanoparticles Under Visible and NIR Light Irradiation
	Xian, Tao 2; Di, Lijing 2; Sun, Xiaofeng 2; Li, Hongqin 2; Zhou, Yongjie 2; Yang, Hua 1
刊名	NANOSCALE RESEARCH LETTERS
	2019-12-30
卷号	14 期号:1
关键词	BiFeO3 nanoparticles Carbon quantum dots CQD/BiFeO3 composites Photocatalysis
ISSN号	1931-7573
DOI	10.1186/s11671-019-3206-5
英文摘要	In this work, the carbon quantum dot (CQD)-decorated BiFeO3 nanoparticle photocatalysts were prepared by a hydrothermal method. The TEM observation and XPS characterization indicate that the CQDs are well anchored on the surface of BiFeO3 nanoparticles. Acid orange 7 (AO7) and hexavalent chromium (Cr(VI)) were chosen as the model pollutants to investigate the photocatalytic/photo-Fenton degradation and photocatalytic reduction performances of the as-prepared CQD/BiFeO3 composites under visible and near-infrared (NIR) light irradiation. Compared with bare BiFeO3 nanoparticles, the CQD/BiFeO3 composites exhibit significantly improved photocatalytic and photo-Fenton catalytic activities. Moreover, the composites possess good catalytic stability. The efficient photogenerated charges separation in the composites was demonstrated by the photocurrent response and electrochemical impedance spectroscopy (EIS) measurements. The main active species involved in the catalytic degradation reaction were clarified by radicals trapping and detection experiments. The underlying photocatalytic and photo-Fenton mechanisms are systematically investigated and discussed.
资助项目	National Natural Science Foundation of China[51602170] ; Youth Science Foundation of Qinghai Normal University[2019zr003]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	SPRINGEROPEN
WOS记录号	WOS:000509991500003
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/76623]
专题	省部共建有色金属先进加工与再利用国家重点实验室理学院
通讯作者	Xian, Tao
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Qinghai Normal Univ, Coll Phys & Elect Informat Engn, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Xian, Tao,Di, Lijing,Sun, Xiaofeng,et al. Photo-Fenton Degradation of AO7 and Photocatalytic Reduction of Cr(VI) over CQD-Decorated BiFeO3 Nanoparticles Under Visible and NIR Light Irradiation[J]. NANOSCALE RESEARCH LETTERS,2019,14(1).
APA	Xian, Tao,Di, Lijing,Sun, Xiaofeng,Li, Hongqin,Zhou, Yongjie,&Yang, Hua.(2019).Photo-Fenton Degradation of AO7 and Photocatalytic Reduction of Cr(VI) over CQD-Decorated BiFeO3 Nanoparticles Under Visible and NIR Light Irradiation.NANOSCALE RESEARCH LETTERS,14(1).
MLA	Xian, Tao,et al."Photo-Fenton Degradation of AO7 and Photocatalytic Reduction of Cr(VI) over CQD-Decorated BiFeO3 Nanoparticles Under Visible and NIR Light Irradiation".NANOSCALE RESEARCH LETTERS 14.1(2019).