稀土Eu^(3+)掺杂TiO_2光催化降解罗丹明B的研究  

Study on photocatalytic degradation of dyestuff wastewater by TiO_2 doped with rare earth Eu^(3+)

作　　者：甄德帅[1,2] 罗小虎[1] 隋国哲[2] 李晓凤 李金龙[2] ZHEN Deshuai;LUO Xiaohu;SUI Guozhe;LI Xiaofeng;LI Jinlong(College of Chemistry and Chemical Engineering,Qiannan Normal University for Nationalities,Duyun 558000,China;College of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]黔南民族师范学院化学与化工学院,贵州都匀558000 [2]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006

出　　处：《染整技术》2018年第6期17-20,28,共5页Textile Dyeing and Finishing Journal

基　　金：2015年贵州省大学生创新创业训练项目(201510670025);2015年人力资源社会保障部择优资助项目;贵州省科技厅;黔南州科技局;黔南师院联合基金一般项目(黔科合LH字[2014]7430)

摘　　要：采用溶胶-凝胶法制备了TiO_2和Eu^(3+)-TiO_2纳米催化剂,并用Raman、FT-IR、PL、XRD和SEM等技术对样品的形态和结构进行了表征,优化了Eu^(3+)-TiO_2纳米催化剂制备条件,并以罗丹明B(RB)的印染废水作为探针反应,分别在紫外光和可见光照下评价了其光催化性能。与TiO_2纳米催化剂进行对比,Eu^(3+)-TiO_2纳米催化剂对罗丹明B溶液(5 mg/L)表现出更高的光催化降解性能,在紫外光和可见光下的脱色率分别达到90%和83%。TiO2 and Eu3+-TiO2 nano-catalysts were prepared by sol-gel method,and the morphloogy and structure of samples were characterized by Raman,FT-IR,PL,XRD and SEM.The preparation conditions of Eu3+-TiO2 nanocatalyst were optimized,and the printing and dyeing wastewater of rhodmaine B(RB)was used as the probe reaction to evaluat e the photocatalytic performance of Eu3+-TiO2 under ultraviolet and visible light respectively.Compared wiht TiO2 nano catalyst,Eu3+-TiO2 nanometer catalyst for rhodamine B solution(5 mg/L)showed hgiher photocatalytic degradation of performance.In the ultraviolet and visible light of decoloring rate reached 90%and 83%respectively.

关 键 词：Eu^3+-TiO2 光催化 印染废水 脱色 

分 类 号：X791[环境科学与工程—环境工程]