Novel p-n heterojunction of BiVO4/Cu2O decorated with rGO for low concentration of NO2 detection

doi:10.1016/j.snb.2020.128284

	Novel p-n heterojunction of BiVO4/Cu2O decorated with rGO for low concentration of NO2 detection
	Li, Qiangqiang 1,3; Han, Ning 2; Zhang, Kewei 1; Bai, Shouli 3; Guo, Jian 3; Luo, Ruixian 3; Li, Dianqing 3; Chen, Aifan 3
刊名	SENSORS AND ACTUATORS B-CHEMICAL
	2020-10-01
卷号	320 页码:10
关键词	BiVO4 Cu2O p-n heterojunction rGO NO2 sensor
DOI	10.1016/j.snb.2020.128284
英文摘要	NO2 is a toxic gas that can cause photochemical smog, acid rain and ozone layer depletion. The reduced graphene oxide (rGO) decorated nanocomposites of semiconductor metal oxides (MOS) as sensing materials of NO2 sensors have received much attention. Here, BiVO4/Cu2O/rGO nanocomposite was successfully prepared by a facile solvothermal method and thermal reduction method. The gas-sensing test indicates that the response of optimum nanocomposite to 1 ppm NO2 is 8 times higher than the pure BiVO4 and 5 times higher than the p-n heterojunction of BiVO4/Cu2O, respectively at 60 degrees C operating temperature. The response time and recovery time also shortened compared to pure BiVO4 and BiVO4/Cu2O composite, and this composite has better stability for detection of NO2, which benefits from the superimposed effect of p-n heterojunction formation and rGO decoration. This work can provide reference for improving the sensing properties of metal oxide semiconductor composites for detection of NO2.
资助项目	National Key R&D Program of China[2016YFB0301600] ; National Key R&D Program of China[2016YFC0207100] ; National Natural Science Foundation of China[21627813] ; National Natural Science Foundation of China[51772015] ; National Natural Science Foundation of China[51973099] ; Taishan Scholar Program of Shandong Province[tsqn201812055]
WOS关键词	GRAPHENE OXIDE ; SENSING PROPERTIES ; ROOM-TEMPERATURE ; GAS SENSOR ; NANOCOMPOSITE ; PERFORMANCE ; FABRICATION ; OXIDATION
WOS研究方向	Chemistry ; Electrochemistry ; Instruments & Instrumentation
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000558700900006
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Taishan Scholar Program of Shandong Province
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/41682]
专题	中国科学院过程工程研究所
通讯作者	Han, Ning; Zhang, Kewei; Li, Dianqing
作者单位	1.Qingdao Univ, Coll Mat Sci & Engn, Collaborat Innovat Ctr Shandong Marine Biobased F, Inst Marine Biobased Mat,State Key Lab Biofibers, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Key Lab Environmentally Harmful Chem Anal, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Li, Qiangqiang,Han, Ning,Zhang, Kewei,et al. Novel p-n heterojunction of BiVO4/Cu2O decorated with rGO for low concentration of NO2 detection[J]. SENSORS AND ACTUATORS B-CHEMICAL,2020,320:10.
APA	Li, Qiangqiang.,Han, Ning.,Zhang, Kewei.,Bai, Shouli.,Guo, Jian.,...&Chen, Aifan.(2020).Novel p-n heterojunction of BiVO4/Cu2O decorated with rGO for low concentration of NO2 detection.SENSORS AND ACTUATORS B-CHEMICAL,320,10.
MLA	Li, Qiangqiang,et al."Novel p-n heterojunction of BiVO4/Cu2O decorated with rGO for low concentration of NO2 detection".SENSORS AND ACTUATORS B-CHEMICAL 320(2020):10.