金属离子掺杂TiO_2复合膜降解抗生素废水的研究  

Study on the degradation of antibiotic wastewater by metal ion doped TiO_2

作　　者：刘辉[1] 邹继颖[1] 吴伟[2] 戎贵文[2] Liu Hui Zou Jiying Wu Wei Rong Guiwen(College of Resource and Environmental Engineering,Jilin Institute of Chemical Technology, Jilin 132022 School of Mining and Safety Engineering,Anhui University of Science and Technology, Huainan 232001)

机构地区：[1]吉林化工学院资源与环境工程学院,吉林132022 [2]安徽理工大学地球与环境学院,淮南232001

出　　处：《化工新型材料》2016年第12期79-81,共3页New Chemical Materials

基　　金：国家自然科学基金资助项目(51309002);安徽省高等学校省级自然科学研究重点项目(KJ2013A094)

摘　　要：采用母体杂多酸(HPA)选择饱和Keggin型磷钨酸(H_3PW_(12)O_(40))作为无机前驱体,四异丙氧基钛(TTIP)作为钛源,石英片作为基底,采用溶胶-凝胶法结合控温技术和旋涂技术,制备掺杂金属离子的磷钨酸/TiO_2(M+/H_3PW_(12)O_(40)/TiO_2)复合膜。通过掺杂金属离子Cu、Fe、Ag以及掺杂的质量比(M^+/Ti^(4+))分别为0.5%、1%、2%、3%、5%来制备杂多酸/TiO_2复合膜催化剂,来探究在加入不同金属离子及其用量后降解四环素溶液的降解率变化。结果表明:掺杂银离子质量比为5%时降解四环素溶度为40mg/L时,降解率最大为72.3%;当掺杂铜离子质量比为5%的纳米复合膜降解40mg/L的四环素溶液时,降解率最大为71.4%;掺杂铁离子质量比为2%时降解四环素溶度为40mg/L时,降解率最大为75%。maternal heteropoly acid （HPA） and phosphotungstic acid as inorganic precursor,titanium tetraisoprop- oxide as titanium source,lsopropyl alcohol as solvent,glacial acetic acid as a chelating agent,and a certain amount of phos photungstic acid,using hydrochloric acid to regulate pH value,by controlling the different metal material and dosage to ex- plore sol gel method was used to prepare a nano titanium dioxide composite membrane which was used for catalytic degra- dation of 10mg/L, 20mg/L, 40mg/L tetracycline solution. Experiments prepared composite film catalyst used the doped metal ions Cu, Fe, Ag, doped quality ratio （M^＋/Ti^4＋ ） were 0.5 G, 1%, 2 %, 3 M, 5 % of heteropoly acid/titanium dioxide. After adding different metal ions and changed the additive amount, the degradation of tetracycline solution, the change of degradation rate and the contrast were explored.

关 键 词：TIO2 金属离子掺杂 溶胶-凝胶法 光催化 四环素 

分 类 号：X703[环境科学与工程—环境工程] O643.36[理学—物理化学]