Wastewater treatment using Fe-doped perovskite manganites by photocatalytic degradation of methyl orange,crystal violet and indigo carmine dyes in tungsten bulb/sunlight

作     者：Brajendra Singh Priyanka Singh Saiqua Siddiqui Divyanshu Singh Mukul Gupta Brajendra Singh;Priyanka Singh;Saiqua Siddiqui;Divyanshu Singh;Mukul Gupta

作者机构：Materials Chemistry LabCentre of Material SciencesUniversity of AllahabadPrayagraj21002India UGC-DAE Consortium for Scientific ResearchUniversity CampusKhandwa Road Indore452001India 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2023年第41卷第9期

页      面：1311-1322,I0002页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the UGC-DAE-Consortium for Scientific Research (CSR) Indore Centre for providing financial support under the CRS project scheme fordoing SXAS experiments and P.Singh for project fellowship 

主　　题：Synchrotron X-ray absorption Dye degradation Magnetic separation Mixed valences Rare earths Wastewater treatment 

摘      要：We documented(ⅰ) the decolorization of wastewater in visible light,which contains methyl orange,crystal violet and indigo carmine dyes,using La_(0.7)Sr_(0.3)Mn_(1-x)Fe_(x)O_(3)(x=0.0,0.05,0.1 and 0.5) manganites and(ⅱ) efficient separation of photocatalysts from water using magnetic *** ceramic photocatalysts were sintered at 1050℃ for 12 *** were characterized by X-ray diffraction(XRD),soft X-ray absorption spectroscopy(SXAS),Fourier transform infrared spectroscopy(FTIR) and UV-visible diffuse reflectance spectroscopy(DRS).SXAS studies show the presence of Mn(Mn^(3+)/Mn^(4+)) and Fe(Fe^(3+)/Fe^(4+)) mixes valences in Fe-doped *** band gap is found in visible light range for La_(0.7)Sr_(0.3)Mn_(1-x)Fe_(x)O_(3)(x=0.0,0.05,0.1) ***_(0.7)Sr_(0.3)MnO_(3) degrades 94.6% methyl orange in7 min,81.9% crystal violet in 10 min and 99.1% indigo carmine in 5 ***_(0.7)Sr_(0.3)Mn_(0.9)Fe_(0.1)O_(3) degrades the 92.6% methyl orange dye solution in 9 min,94.8% crystal violet in 25 min and 97.1% indigo carmine in3 *** and Fe doped manganites can be separated in 60 s from wastewater.