Enhanced photocatalytic performance by hybridization of Bi2WO6 nanoparticles with honeycomb-like porous carbon skeleton

doi:10.1016/j.jenvman.2019.109341

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Enhanced photocatalytic performance by hybridization of Bi2WO6 nanoparticles with honeycomb-like porous carbon skeleton
	Wang, Siyuan 1; Yang, Hua 1; Yi, Zao 2; Wang, Xiangxian 1
刊名	JOURNAL OF ENVIRONMENTAL MANAGEMENT
	2019-10-15
卷号	248
关键词	Bi2WO6 nanoparticles Porous carbon skeleton (PCS) PCS@Bi2WO6 composites Photocatalytic degradation of RhB Photocatalytic mechanism
ISSN号	0301-4797
DOI	10.1016/j.jenvman.2019.109341
英文摘要	In this work, we have assembled Bi2WO6 nanoparticles on the surface of honeycomb-like porous carbon skeleton (PCS) via a hydrothermal route to achieve a new type of PCS@Bi2WO6 hybrid composite photocatalysts. The PCS@Bi2WO6 hybrid structures are determined by SEM, TEM and XPS characterizations. UV-vis DRS investigation suggests an enhanced visible-light absorption of the PCS@Bi2WO6 composites. Transient photocurrent response, EIS and PL spectroscopy characterizations demonstrate that the composites exhibit an efficient separation of photoproduced electron/hole pairs. The photocatalytic performance of the composites were evaluated by using RhB as the model pollutant and simulated sunlight as the light source. It is revealed that the PCS@Bi2WO6 hybrid composites manifest much enhanced photocatalytic performance. The 5 wt%PCS@Bi2WO6 composite manifests the highest photocatalytic activity, which is ca. 2.1 times as large as that of bare Bi2WO6 nanoparticles. This can be mainly ascribed to two factors: (1) The photogenerated electron/hole pairs in Bi2WO6 are efficiently separated due to the electron transfer between Bi2WO6 and PCS; and (2) PCS induces enhanced visible-light absorption and the visible-light-excited electrons in PCS could also take part in the photocatalytic reactions.
资助项目	National Natural Science Foundation of China[51662027]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000485210300090
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31503]
专题	理学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Yang, Hua
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Wang, Siyuan,Yang, Hua,Yi, Zao,et al. Enhanced photocatalytic performance by hybridization of Bi2WO6 nanoparticles with honeycomb-like porous carbon skeleton[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2019,248.
APA	Wang, Siyuan,Yang, Hua,Yi, Zao,&Wang, Xiangxian.(2019).Enhanced photocatalytic performance by hybridization of Bi2WO6 nanoparticles with honeycomb-like porous carbon skeleton.JOURNAL OF ENVIRONMENTAL MANAGEMENT,248.
MLA	Wang, Siyuan,et al."Enhanced photocatalytic performance by hybridization of Bi2WO6 nanoparticles with honeycomb-like porous carbon skeleton".JOURNAL OF ENVIRONMENTAL MANAGEMENT 248(2019).