N和Nd^(3+)共掺杂TiO_2光催化剂的制备及其性能研究  

Preparation and properties of N,Nd^(3+) -doped TiO_2 Photocatalyst

作　　者：乌仁其木格[1] 赵斯琴[2] 

机构地区：[1]内蒙古化工职业学院 [2]内蒙古师范大学化学与环境科学学院,内蒙古呼和浩特010022

出　　处：《内蒙古石油化工》2015年第6期14-16,共3页Inner Mongolia Petrochemical Industry

基　　金：内蒙古自然科学基金(2011BS0204)项目资助

摘　　要：本文以钛酸四正丁酯为前驱体,结合溶胶-凝胶法和水热法,分别制备了TiO2、Nd3+/TiO2、N,Nd3+/TiO2等系列光催化剂。通过X射线衍射(XRD)、紫外-可见反射吸收光谱(UV-Vis)等测试手段对系列样品的结构和光谱学性能进行了初步表征;并以甲基橙为目标污染物、以氙灯为光源测试了其可见光光催化活性。结果表明:未掺杂光催化剂为锐钛矿相TiO2结构,稀土Nd3+、非金属N和Nd3+的共掺杂均有效抑制了TiO2的晶型转变,并且使TiO2光吸收范围产生了一定的红移,即拓宽了光吸收范围;稀土Nd3+、非金属N和Nd3+的共掺杂均有效提高TiO2光催化剂可见光光催化活性。a series of photocatalyst ： TiOz. Nd3 ＋/TiO2. N, Nd3 ＋/TiOz weresynthesized by sol --gel method combine with hydrotherrnal method,and their microstructure and optical properties were initial characterized by XRD and UV--Vis diffuse reflectance spectroscopy techniques. At the same time, with the Xenon lamp as the light source, the photocatalytic activities of the materials for degradation of methyl orange under visible--light irradiation were also investigated. The results show that anatase TiO2 structure as undoped photocatalyst, both Nd3 ＋ and Nd3 ＋, N co--doping are effectively inhibited the crystal transformation of TiO2. Also which broadens the range, make a certain redshift range of light absorption; The phorocatalytic activities of the materials obviously improved for theNd3＋and Nd3＋, N co--doped in titania system.

关 键 词：TIO2 Nd3+ 共掺杂 光催化 

分 类 号：O643[理学—物理化学]