| Literature DB >> 27840059 |
Hongbo Zhang1, Yingying Huang1, Guanshu Li2, Guowei Wang1, Dawei Fang1, Youtao Song2, Jun Wang3.
Abstract
Er3+:Y3Al5O12/WO3-KNbO3 composite powder as an effective sonocatalyst was prepared via collosol-gelling-hydrothermal and high-temperature calcination methods. The textures of materials were observed by X-ray diffractometer (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). In order to estimate the sonocatalytic activity of Er3+:Y3Al5O12/WO3-KNbO3 composite powder, the sonocatalytic degradation of methamphetamine (MAPA) was performed. Furthermore, the influences of mass ratio of WO3 and KNbO3, ultrasonic irradiation time, catalyst addition amount, initial methamphetamine (MAPA) concentration and used times on the sonocatalytic degradation of methamphetamine (MAPA) caused by Er3+:Y3Al5O12/WO3-KNbO3 composite powder were investigated by using gas chromatography. Under optimal conditions of 1.00g/L Er3+:Y3Al5O12/WO3-KNbO3 addition amount and 10.00mg/L methamphetamine (MAPA) initial concentration, 68% of methamphetamine (MAPA) could be removed after 150min ultrasonic irradiation. The experimental results showed that the Er3+:Y3Al5O12/WO3-KNbO3 as sonocatalyst displayed an excellent sonocatalytic activity in degradation of methamphetamine (MAPA) under ultrasonic irradiation. Copyright ÂEntities:
Keywords: Methamphetamine (MAPA); Sonocatalyst (Er(3+):Y(3)Al(5)O(12)/KNbO(3)-WO(3)); Sonocatalytic degradation; Up-conversion luminescence agent (Er(3+):Y(3)Al(5)O(12))
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Year: 2016 PMID： 27840059 DOI： 10.1016/j.ultsonch.2016.11.004
Source DB: PubMed Journal: Ultrason Sonochem ISSN： 1350-4177 Impact factor: 7.491