NiTe/TiO2复合材料的制备与多模式光催化降解染料  

Synthesis of NiTe/TiO2 composites and multiple modes degradation for dyes

作　　者：李奕萱[1] 李莉[1,2] 张文治[1] 辛籽潺 刘雁南 周乾龙 王润 LI Yi-xuan;LI Li;ZHANG Wen-zhi;XIN Zi-chan;LIU Yan-nan;ZHOU Qian-long;WANG Run(School of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006,China;School of Materials Science and Engineering,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006 [2]齐齐哈尔大学材料科学与工程学院,黑龙江齐齐哈尔161006

出　　处：《高师理科学刊》2019年第6期55-59,共5页Journal of Science of Teachers＇College and University

基　　金：黑龙江省教育厅基本业务专项理工面上项目(135209211)

摘　　要：以硝酸镍、碲粉和异丙氧基钛(TTIP)为原料,采用程序升温水热法结合高温煅烧,通过控制Ni∶Ti摩尔比制备一系列NiTe/TiO2复合材料.结果表明,所制备的NiTe/TiO2复合材料为六方相NiTe和锐钛矿相TiO2的混合晶相,且在可见光区具有较强的光吸收能力.通过紫外光、可见光和模拟日光等多模式光催化降解孔雀石绿(MG)考察NiTe/TiO2复合材料的光催化性能.结果表明,当摩尔比为1∶7时,复合材料的光催化活性最佳.该复合材料对不同结构的有机污染物降解具有一定的广泛性.A series of NiTe/TiO2 composites were prepared by controlling the Ni∶Ti molar ratio by using nickel nitrate,tellurium powder and Titanium(Ⅳ)isopropoxide(TTIP)as raw materials,using programmed temperature hydrothermal method and high temperature calcination.The results show that the prepared NiTe/TiO2 composites have mixed crystal phases of NiTe and TiO2.The photocatalytic activity of NiTe/TiO2 composites was investigated by photocatalytic degradation of malachite green(MG)by UV,visible and simulated sunlight.The results show that the photocatalytic activity of the composites is the best when the molar ratio is 1∶7.At the same time,the synthesized composites has a certain extensiveness in the degradation of organic pollutants with different structures.

关 键 词：程序升温水热法 高温煅烧 NiTe/TiO2 光催化 孔雀石绿 

分 类 号：O643.36[理学—物理化学]