Newly developed Fe3O4–Cr2O3 magnetic nanocomposite for photocatalytic decomposition of 4-chlorophenol in water

作     者：Khoirakpam Kesho Singh Kula Kamal Senapati Chandan Borgohain Kanak Chandra Sarma 

作者机构：Department of Instrumentation and USICGauhati UniversityGuwahati 781014AssamIndia Central Instruments FacilityIndian Institute of Technology GuwahatiGuwahati 781039AssamIndia Department of BiochemistryTocklai Tea Research InstituteTRAJorhat 785008AssamIndia 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2017年第29卷第2期

页      面：333-340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）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：support from Central Instruments Facility and Department of Chemistry of Indian Institute of Technology Guwahati for extending various analytical facilities during the course of investigation 

主　　题：Chlorophenol Magnetic nanocomposite Photocatalyst Core/shell nanocomposite 

摘      要：Chlorophenols, typically 4-chlorophenols are highly toxic and non-biodegradable organic contaminants which pose serious threat to the environment, particularly when released into aqueous medium. The removal of these pollutants by efficient method has received worldwide concern in recent past. A new Fe3O4–Cr2O3 magnetic nanocomposite was synthesized by wet chemical method under ultrasonic irradiation. Microstructure and morphology of the nanocomposite were characterized by powder X-ray diffraction（XRD）,Fourier transform infrared（FT-IR）, and a transmission electron microscope（TEM）. Magnetic and optical properties were studied by a vibrating sample magnetometer（VSM） and an ultraviolet–visible（UV–Vis） spectrophotometer respectively. The magnetic nanocomposite（MNC） was used as photocatalyst for effective decomposition of 4-chlorophenol in water under ultraviolet（UV） irradiation.