Sono-photocatalytic production of hydrogen by interface modified metal oxide insulators

doi:10.1016/j.ultsonch.2018.03.016

GIEC OpenIR

	Sono-photocatalytic production of hydrogen by interface modified metal oxide insulators
	Senevirathne, Rushdi D.1; Abeykoon, Lahiru K.1; De Silva, Nuwan L.1; Yan, Chang-Feng2 ; Bandara, Jayasundera 1
	2018-07-01
发表期刊	ULTRASONICS SONOCHEMISTRY
ISSN	1350-4177
卷号	45 页码:279-285
通讯作者	Bandara, Jayasundera(jayasundera@yahoo.com)
摘要	Dielectric oxide materials are well-known insulators that have many applications in catalysis as well as in device manufacturing industries. However, these dielectric materials cannot be employed directly in photochemical reactions that are initiated by the absorption of UV-Vis photons. Despite their insensitivity to solar energy, dielectric materials can be made sono-photoactive even for low energy IR photons by modifications of the interfacial properties of dielectric materials by noble metals and metal oxides. In this investigation, by way of interface modification of dielectric MgO nanoparticles by Ag metal and Ag2O nanoparticles, IR photon initiated sono-photocatalytic activity of MgO is reported. The observed photocatalytic activity is found to be the synergic action of both IR light and sonication effect and sonication assisted a multi-step, sub-bandgap excitation of electrons in the MgO is proposed for the observed catalytic activity of Ag/Ag2O coated MgO nanoparticles. Our investigation reveals that other dielectric materials such as silver coated SiO2 and Al2O3 also exhibit IR active sono-photocatalytic activity.
关键词	Sono-photocatalysis MgO IR photon Dielectric oxides Sub-band gap excitations Multi step excitations
DOI	10.1016/j.ultsonch.2018.03.016
关键词[WOS]	THERMAL-DECOMPOSITION ; SILVER NANOPARTICLES ; INFRARED RADIATION ; THIN-FILMS ; WATER ; DEGRADATION ; MGO ; SURFACE
收录类别	SCI
语种	英语
资助项目	Chinese Acadamy of Sciences (CAS)
WOS研究方向	Acoustics ; Chemistry
项目资助者	Chinese Acadamy of Sciences (CAS)
WOS类目	Acoustics ; Chemistry, Multidisciplinary
WOS记录号	WOS:000432506900029
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/23508
专题	中国科学院广州能源研究所
通讯作者	Bandara, Jayasundera
作者单位	1.Natl Inst Fundamental Studies, Hantana Rd,CP 20000, Kandy, Sri Lanka 2.Chinese Acad Sci, Hydrogen Prod & Utilizat Lab, Key Lab Renewable Energy, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Senevirathne, Rushdi D.,Abeykoon, Lahiru K.,De Silva, Nuwan L.,et al. Sono-photocatalytic production of hydrogen by interface modified metal oxide insulators[J]. ULTRASONICS SONOCHEMISTRY,2018,45:279-285.
APA	Senevirathne, Rushdi D.,Abeykoon, Lahiru K.,De Silva, Nuwan L.,Yan, Chang-Feng,&Bandara, Jayasundera.(2018).Sono-photocatalytic production of hydrogen by interface modified metal oxide insulators.ULTRASONICS SONOCHEMISTRY,45,279-285.
MLA	Senevirathne, Rushdi D.,et al."Sono-photocatalytic production of hydrogen by interface modified metal oxide insulators".ULTRASONICS SONOCHEMISTRY 45(2018):279-285.