Institutional Repository of Coll Sci
| Sonocatalytic activity of LuFeO_3 crystallites synthesized via a hydrothermal route | |
Zhou Ming; Yang Hua ; Xian Tao; Yang Yang; Zhang Yunchuan
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| 2015 | |
| Source Publication | 催化学报
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| ISSN | 0253-9837 |
| Volume | 36Issue:11Pages:1987-1994 |
| Abstract | LuFeO_3 crystallites of different sizes and morphologies were synthesized via a hydrothermal route. The sonocatalytic properties of the as-synthesized samples were investigated by degrading various organic dyes, including acid orange 7 (AO7), rhodamine B (RhB), methyl orange (MO), and methylene blue (MB), under ultrasonic irradiation, revealing that they exhibit excellent sonocatalytic activity toward the degradation of these dyes. Particularly, the synthesized bar-like particles with lengths of ~3 mum and widths of ~1 mum have the highest sonocatalytic activity, and the degradation percentage of AO7 reaches 89% after 30 min of sonocatalysis. The effects of inorganic anions such as Cl~-, NO_3~-, SO_4~(2-), PO_4~(3-), and HCO_3~- on the sonocatalysis efficiency were investigated. Hydroxyl radicals (?OH) detected by fluorimetry using terephthalic acid as a probe molecule were found to be produced over the ultrasonic-irradiated LuFeO_3 particles. The addition of ethanol, which acts as a?OH scavenger, leads to quenching of ?OH radicals and a simultaneous decrease in the dye degradation. This suggests that ?OH is the dominant active species responsible for the dye degradation. |
| Keyword | Lutetium orthoferrite Hydrothermal synthesis Sonocatalytic activity Hydroxyl radical Inorganic anion Degradation of organic dyes |
| Indexed By | CSCD |
| Language | 英语 |
| WOS Research Area | Chemistry |
| WOS Subject | CHEMISTRY MULTIDISCIPLINARY |
| CSCD ID | CSCD:5552117 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lut.edu.cn/handle/2XXMBERH/70991 |
| Collection | 理学院 |
| Affiliation | School of Science, Lanzhou University of Technology, Lanzhou, Gansu 730050, China |
| First Author Affilication | Lanzhou University of Technology |
| First Signature Affilication | Lanzhou University of Technology |
| Recommended Citation GB/T 7714 | Zhou Ming,Yang Hua,Xian Tao,et al. Sonocatalytic activity of LuFeO_3 crystallites synthesized via a hydrothermal route[J]. 催化学报,2015,36(11):1987-1994. |
| APA | Zhou Ming,Yang Hua,Xian Tao,Yang Yang,&Zhang Yunchuan.(2015).Sonocatalytic activity of LuFeO_3 crystallites synthesized via a hydrothermal route.催化学报,36(11),1987-1994. |
| MLA | Zhou Ming,et al."Sonocatalytic activity of LuFeO_3 crystallites synthesized via a hydrothermal route".催化学报 36.11(2015):1987-1994. |
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