https://scholars.lib.ntu.edu.tw/handle/123456789/425158
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Tsai, Cheng Yen | en_US |
dc.contributor.author | HSING-CHENG HSI | en_US |
dc.contributor.author | Bai, Hsunling | en_US |
dc.contributor.author | Fan, Kuo Shuh | en_US |
dc.creator | Sun, Hung Dar;Fan, Kuo Shuh;Bai, Hsunling;HSING-CHENG HSI;Tsai, Cheng Yen | - |
dc.date.accessioned | 2019-09-26T03:28:35Z | - |
dc.date.available | 2019-09-26T03:28:35Z | - |
dc.date.issued | 2012-01-01 | - |
dc.identifier.issn | 00214922 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/425158 | - |
dc.description.abstract | Al-doped TiO 2 nanoparticles possessing visible-light photocatalytic activity were fabricated with an atmospheric-pressure thermal plasma system via a single-step direct combination of vaporized Ti, Al, and O 2 . Pure Ti and Al 2 O 3 powders and ultrahigh-purity O 2 were used as the precursors. The experimental results showed that the size of synthesized TiO 2 was between 10 and 105 nm. Nevertheless, the nanoparticles with sizes smaller than 50nm accounted for approximately 80% of the total number. The observed size reduction appeared to be the suppression on particle growth due to the introduction of Al species into TiO 2 crystal. The largest specific surface area of the Al-doped TiO 2 was 44m2g -1 . The anatase phase was noticeably decreased with increasing the Al2O3 addition. The absorption spectra of Al-doped TiO 2 shifted from UV to visible-light region with respect to an increase in Al 2 O 3 addition. Oxygen in the formed TiO 2 was found to be in TiO 2 crystal lattice and in surface hydroxyl groups. Both Ti4+ and Ti3+ existed in the formed TiO 2 . However, the Ti3 amount significantly increased with increasing Al 2 O 3 addition due to Al/Ti substitution and the resulted oxygen vacancy. © 2012 The Japan Society of Applied Physics. | en_US |
dc.publisher | IOP PUBLISHING LTD | en_US |
dc.relation.ispartof | Japanese Journal of Applied Physics | en_US |
dc.title | Single-step synthesis of al-doped tio <inf>2</inf> nanoparticles using non-transferred thermal plasma torch | en_US |
dc.type | conference paper | en_US |
dc.identifier.doi | https://api.elsevier.com/content/abstract/scopus_id/84863407905 | - |
dc.identifier.doi | 10.1143/JJAP.51.01AL01 | - |
dc.identifier.scopus | 2-s2.0-84863407905 | - |
dc.identifier.isi | WOS:000303480900066 | - |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/84863407905 | - |
dc.relation.journalvolume | 51 | en_US |
dc.relation.journalissue | 1 PART 2 | en_US |
item.fulltext | no fulltext | - |
item.openairetype | conference paper | - |
item.openairecristype | http://purl.org/coar/resource_type/c_5794 | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | Environmental Engineering | - |
crisitem.author.orcid | 0000-0001-5558-2077 | - |
crisitem.author.parentorg | College of Engineering | - |
顯示於: | 環境工程學研究所 |
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