Photocatalytic oxidation of thiophene on RuO2/SO42--TiO2: Insights for cocatalyst and solid-acid

doi:10.1016/j.apcatb.2016.02.016

	Photocatalytic oxidation of thiophene on RuO2/SO42--TiO2: Insights for cocatalyst and solid-acid
	Lin, Feng 1; Jiang, Zongxuan 2; Tang, Nanfang 2; Zhang, Cen 2; Chen, Zhenpan 2; Liu, Tiefeng 2; Dong, Bin 1
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2016-07-05
卷号	188 页码:253-258
关键词	Cocatalyst Solid-acid Thiophene Photocatalytic Oxidation Ruo2/so42--tio2
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2016.02.016
文献子类	Article
英文摘要	Thiophene is one of the main sulfur-containing compounds present in gasoline and difficult to be oxidized with the conventional oxidative processes. Photocatalytic oxidation is believed to be a promising way to remove the sulfur-containing compounds from gasoline. Here we studied the photocatalytic oxidation of thiophene on RuO2/SO42--TiO2 photocatalyst. We found that high activity can be achieved on 0.045 wt.% RuO2/1 M SO42--TiO2 using molecular oxygen as oxidant. The sulfur in thiophene is oxidized to SO3 finally. SEM and XRD. measurements show that the crystallinity of TiO2 is greatly improved by sulfation process. IR spectra of pyridine adsorption measurements gives the evidence for that the surface acidity property of TiO2 is also greatly improved. We can conclude that the synergistic effect of RuO2 acting as an oxidation cocatalyst and SO42--TiO2 acting as a Lewis acid which capture superoxide species/activate thiophene molecules is responsible for the activity enchancement of thiophene photocatalytic oxidation. The synergistic effect between oxidation catalysis and acid catalysis is crucial for developing highly active photocatalysts for environmental protection. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词	VISIBLE-LIGHT IRRADIATION ; HETEROGENEOUS PHOTOCATALYSIS ; HYDROGEN EVOLUTION ; DUAL COCATALYSTS ; SULFATED TIO2 ; PHASE-CONTROL ; DESULFURIZATION ; WATER ; OXIDE ; DEGRADATION
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000372677500027
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170636]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Lin, Feng; Dong, Bin
作者单位	1.Dalian Nationalities Univ, Sch Phys & Mat Engn, State Ethn Affairs Commiss, Key Lab New Energy & Rare Earth Resource Utilizat, Dalian 116600, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Lin, Feng,Jiang, Zongxuan,Tang, Nanfang,et al. Photocatalytic oxidation of thiophene on RuO2/SO42--TiO2: Insights for cocatalyst and solid-acid[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2016,188:253-258.
APA	Lin, Feng.,Jiang, Zongxuan.,Tang, Nanfang.,Zhang, Cen.,Chen, Zhenpan.,...&Dong, Bin.(2016).Photocatalytic oxidation of thiophene on RuO2/SO42--TiO2: Insights for cocatalyst and solid-acid.APPLIED CATALYSIS B-ENVIRONMENTAL,188,253-258.
MLA	Lin, Feng,et al."Photocatalytic oxidation of thiophene on RuO2/SO42--TiO2: Insights for cocatalyst and solid-acid".APPLIED CATALYSIS B-ENVIRONMENTAL 188(2016):253-258.