SIC OpenIR
New insights into the synergistic effect of active radicals and adsorptive ability on the photodegradation of gaseous acetaldehyde over reduced graphene Oxide/P25 composite
Zeng, Qinglong; Xie, Xiaofeng; Wang, Xiao; Lu, Guanhong; Li, Haiwei; Lee, Shun Cheng; Sun, Jing
2019-12-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume380
SubtypeArticle
AbstractAlthough coupling reduced graphene oxide (RGO) with TiO2 is believed to enhance the photocatalysis through the light utilization, studies on its photothermal conversion effect are rarely reported. Herein, RGOP (reduced graphene oxide/P25) was synthesized to explore roles of the enhanced light adsorption and photothermal conversion in the photocatalytic process. It was found that although RGOP had increased absorbance, it actually possessed lower available light utilization compared with P25. In the synergistic effect of available light utilization, transfer resistance and hydrophilicity, RGOP exhibited less superoxide radicals but more hydroxyl radicals. In the presence of scavenger experiments, center dot O-2(-) was proved to play the predominant role in the photo-catalytic process, while center dot OH was the secondary one. In comparison to P25, the change of active radicals of RGOP was adverse to its photocatalysis. However, due to the superior adsorptive property of RGOP, it exhibited higher photocatalytic activity than P25. The improved photocatalytic activity of RGOP was ascribed to its superior adsorptive ability aside from active radicals (O-center dot(2)-, (OH)-O-center dot).
KeywordPhotothermal conversion Active radicals Adsorptive ability Gaseous acetaldehyde
DOI10.1016/j.jhazmat.2019.120814
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology
PublisherELSEVIER
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26696
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Zeng, Qinglong,Xie, Xiaofeng,Wang, Xiao,et al. New insights into the synergistic effect of active radicals and adsorptive ability on the photodegradation of gaseous acetaldehyde over reduced graphene Oxide/P25 composite[J]. JOURNAL OF HAZARDOUS MATERIALS,2019,380.
APA Zeng, Qinglong.,Xie, Xiaofeng.,Wang, Xiao.,Lu, Guanhong.,Li, Haiwei.,...&Sun, Jing.(2019).New insights into the synergistic effect of active radicals and adsorptive ability on the photodegradation of gaseous acetaldehyde over reduced graphene Oxide/P25 composite.JOURNAL OF HAZARDOUS MATERIALS,380.
MLA Zeng, Qinglong,et al."New insights into the synergistic effect of active radicals and adsorptive ability on the photodegradation of gaseous acetaldehyde over reduced graphene Oxide/P25 composite".JOURNAL OF HAZARDOUS MATERIALS 380(2019).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zeng, Qinglong]'s Articles
[Xie, Xiaofeng]'s Articles
[Wang, Xiao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zeng, Qinglong]'s Articles
[Xie, Xiaofeng]'s Articles
[Wang, Xiao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zeng, Qinglong]'s Articles
[Xie, Xiaofeng]'s Articles
[Wang, Xiao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.