Photo-Fenton Degradation of AO7 and Photocatalytic Reduction of Cr(VI) over CQD-Decorated BiFeO3 Nanoparticles Under Visible and NIR Light Irradiation
Xian, Tao1; Di, Lijing1; Sun, Xiaofeng1; Li, Hongqin1; Zhou, Yongjie1; Yang, Hua2
2019-12-30
Source PublicationNANOSCALE RESEARCH LETTERS
ISSN1931-7573
Volume14Issue:1
AbstractIn 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.
KeywordBiFeO3 nanoparticles Carbon quantum dots CQD/BiFeO3 composites Photocatalysis
DOI10.1186/s11671-019-3206-5
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51602170] ; Youth Science Foundation of Qinghai Normal University[2019zr003]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000509991500003
PublisherSPRINGEROPEN
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/76623
Collection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
Corresponding AuthorXian, Tao
Affiliation1.Qinghai Normal Univ, Coll Phys & Elect Informat Engn, Xining 810008, Peoples R China
2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
Recommended Citation
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).
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