Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| 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, Jayasundera1
| |
| 2018-07-01 | |
| Source Publication | ULTRASONICS SONOCHEMISTRY
 |
| ISSN | 1350-4177 |
| Volume | 45Pages:279-285 |
| Corresponding Author | Bandara, Jayasundera(jayasundera@yahoo.com) |
| Abstract | 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. |
| Keyword | Sono-photocatalysis MgO IR photon Dielectric oxides Sub-band gap excitations Multi step excitations |
| DOI | 10.1016/j.ultsonch.2018.03.016 |
| WOS Keyword | THERMAL-DECOMPOSITION ; SILVER NANOPARTICLES ; INFRARED RADIATION ; THIN-FILMS ; WATER ; DEGRADATION ; MGO ; SURFACE |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Chinese Acadamy of Sciences (CAS) |
| WOS Research Area | Acoustics ; Chemistry |
| Funding Organization | Chinese Acadamy of Sciences (CAS) |
| WOS Subject | Acoustics ; Chemistry, Multidisciplinary |
| WOS ID | WOS:000432506900029 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/23508 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Bandara, Jayasundera |
| Affiliation | 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 |
| Recommended Citation 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. |
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