title: Preparation of Er3+:Y3Al5O12/WO3-KNbO3composite and application in treatment of methamphetamine under ultrasonic irradiation.
abstract: Er3+:Y3Al5O12/WO3-KNbO3composite 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-KNbO3composite powder, the sonocatalytic degradation of methamphetamine (MAPA) was performed. Furthermore, the influences of mass ratio of WO3and 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-KNbO3composite powder were investigated by using gas chromatography. Under optimal conditions of 1.00g/L Er3+:Y3Al5O12/WO3-KNbO3addition 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-KNbO3as sonocatalyst displayed an excellent sonocatalytic activity in degradation of methamphetamine (MAPA) under ultrasonic irradiation.
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, PR China.
authors.forename: Hongbo
authors.initials: H
authors.lastname: Zhang
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, PR China.
authors.forename: Yingying
authors.initials: Y
authors.lastname: Huang
authors.affiliation: College of Environment, Liaoning University, Shenyang 110036, PR China.
authors.forename: Guanshu
authors.initials: G
authors.lastname: Li
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, PR China.
authors.forename: Guowei
authors.initials: G
authors.lastname: Wang
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, PR China.
authors.forename: Dawei
authors.initials: D
authors.lastname: Fang
authors.affiliation: College of Environment, Liaoning University, Shenyang 110036, PR China.
authors.forename: Youtao
authors.initials: Y
authors.lastname: Song
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, PR China; College of Environment, Liaoning University, Shenyang 110036, PR China. Electronic address: wangjun888tg@126.com.
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D002384:Catalysis; D004785:Environmental Pollutants / Q000737:chemistry* / Q000302:isolation & purification; D004871:Erbium / Q000737:chemistry*; D007700:Kinetics; D008694:Methamphetamine / Q000737:chemistry* / Q000302:isolation & purification; D009556:Niobium / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D011188:Potassium / Q000737:chemistry*; D014414:Tungsten / Q000737:chemistry*; D000069453:Ultrasonic Waves; D015019:Yttrium / Q000737:chemistry*
chemical_list: D004785:Environmental Pollutants; D010087:Oxides; C503779:yttrium-aluminum-garnet; D009556:Niobium; C477466:potassium niobate; D008694:Methamphetamine; D015019:Yttrium; D004871:Erbium; C511604:tungsten oxide; D000535:Aluminum; D011188:Potassium; D014414:Tungsten
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))