Facile Preparation of CNT/Ag2S Nanocomposites with Improved Visible and NIR Light Photocatalytic Degradation Activity and Their Catalytic Mechanism

doi:10.3390/mi10080503

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Facile Preparation of CNT/Ag2S Nanocomposites with Improved Visible and NIR Light Photocatalytic Degradation Activity and Their Catalytic Mechanism
	Di, Lijing 1; Xian, Tao 1; Sun, Xiaofeng 1; Li, Hongqin 1; Zhou, Yongjie 1; Ma, Jun 1; Yang, Hua 2
刊名	MICROMACHINES
	2019-08
卷号	10 期号:8
关键词	Ag2S nanoparticles carbon nanotubes CNT Ag2S hybrid nanocomposites photocatalysis
DOI	10.3390/mi10080503
英文摘要	In this work, a series of carbon nanotubes (CNT)/Ag2S hybrid nanocomposites were successfully prepared by a facile precipitation method. Transmission electron microscope (TEM) observation indicates that Ag2S nanoparticles with an average particle size of similar to 25 nm are uniformly anchored on the surface of CNT. The photocatalytic activities of the CNT/Ag2S nanocomposites were investigated toward the degradation of rhodamine B (RhB) under visible and near-infrared (NIR) light irradiation. It is shown that the nanocomposites exhibit obviously enhanced visible and NIR light photocatalytic activities compared with bare Ag2S nanoparticles. Moreover, the recycling photocatalytic experiment demonstrates that the CNT/Ag2S nanocomposites possess excellent photocatalytic stability. The photoelectrochemical and photoluminescence measurements reveal the efficient separation of photogenerated charges in the CNT/Ag2S nanocomposites. This is the dominant reason behind the improvement of the photocatalytic activity. Based on active species trapping experiments, the possible photocatalytic mechanism of CNT/Ag2S nanocomposites for dye degradation under visible and NIR light irradiation was proposed.
资助项目	Youth Science Foundation of Qinghai Normal University[2019zr003]
WOS研究方向	Science & Technology - Other Topics ; Instruments & Instrumentation
语种	英语
出版者	MDPI
WOS记录号	WOS:000482989700030
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31669]
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.Qinghai Normal Univ, Coll Phys & Elect Informat Engn, Xining 810008, Qinghai, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Di, Lijing,Xian, Tao,Sun, Xiaofeng,et al. Facile Preparation of CNT/Ag2S Nanocomposites with Improved Visible and NIR Light Photocatalytic Degradation Activity and Their Catalytic Mechanism[J]. MICROMACHINES,2019,10(8).
APA	Di, Lijing.,Xian, Tao.,Sun, Xiaofeng.,Li, Hongqin.,Zhou, Yongjie.,...&Yang, Hua.(2019).Facile Preparation of CNT/Ag2S Nanocomposites with Improved Visible and NIR Light Photocatalytic Degradation Activity and Their Catalytic Mechanism.MICROMACHINES,10(8).
MLA	Di, Lijing,et al."Facile Preparation of CNT/Ag2S Nanocomposites with Improved Visible and NIR Light Photocatalytic Degradation Activity and Their Catalytic Mechanism".MICROMACHINES 10.8(2019).