N-Al/TiO2催化剂的制备及可见光降解染料  

Preparation of N-Al/TiO2 Catalysts and Visible Light Degradation Dyes

作　　者：王鑫[1] 王丹丹[1] 郑永杰[1] 田景芝[1] 荆涛[1] WANG Xin;WANG Dan-dan;ZHENG Yong-jie;TIAN Jing-zhi;JING Tao(College of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006,Heilongjiang,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院

出　　处：《精细化工》2018年第8期1325-1330,共6页Fine Chemicals

基　　金：齐齐哈尔市科技攻关项目(SFGG-201601)~~

摘　　要：采用溶胶-凝胶法分别制备了N、Al单掺杂与N、Al共掺杂的TiO_2复合材料,考察了4种催化剂在可见光下对染料甲基橙、亚甲基蓝、罗丹明B的光降解效率。采用XRD、SEM、XPS、UV-Vis DRS、N2吸附-脱附手段对催化剂进行表征和评价。结果表明：N、Al共掺杂后的Ti O2骨架晶型仍保持为锐钛矿型,比表面积增加,团聚现象略有减少,且N、Al共掺杂TiO_2催化剂在可见光下对甲基橙的降解效果最佳,脱色率可达70%左右。N, Al doped TiO_2 and N, Al co-doped TiO_2 composites were prepared by sol-gel method, respectively. The photocatalytic degradation efficiency of dyes methyl orange, methylene blue and rhodamine B under visible light was studied. The catalysts were characterized and evaluated by XRD, SEM, XPS, UV-Vis DRS, and N2 adsorption-desorption. The experimental results show that the crystal structure of N, Al co-doped Ti O2 remains as anatase, the specific surface area increases, and the agglomeration phenomenon slightly decreases. N, Al co-doped Ti O2 catalyst has the best degradation effect on methyl orange under visible light, and the decolorization rate can reach 70%.

关 键 词：溶胶-凝胶法 共掺杂TIO2 锐钛矿相 脱色率 催化技术 

分 类 号：O643[理学—物理化学] TB431[理学—化学]