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Sonocatalytic activity of LuFeO_3 crystallites synthesized via a hydrothermal route
Zhou Ming; Yang Hua; Xian Tao; Yang Yang; Zhang Yunchuan
2015
Source Publication催化学报
ISSN0253-9837
Volume36Issue:11Pages:1987-1994
AbstractLuFeO_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.
KeywordLutetium orthoferrite Hydrothermal synthesis Sonocatalytic activity Hydroxyl radical Inorganic anion Degradation of organic dyes
Indexed ByCSCD
Language英语
WOS Research AreaChemistry
WOS SubjectCHEMISTRY MULTIDISCIPLINARY
CSCD IDCSCD:5552117
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/70991
Collection理学院
AffiliationSchool of Science, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
First Author AffilicationLanzhou University of Technology
First Signature AffilicationLanzhou 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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