人工晶体学报2018，Vol.47Issue(2)：430-434,440,6.
氮镧共掺杂的二氧化钛光催化剂制备及其工艺优化
Preparation and Process Optimization of TiO2Photocatalysts Co-doped with Nitrogen and Lanthanum
摘要
Abstract
N and La co-doped TiO2nanocatalysts were successfully synthesized through a sol-gel method by using triethylamine as nitrogen source.The products were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM)and UV-vis diffuse reflectance spectroscopy(UV-Vis DRS).The photocatalytic activities of the N and La co-doped TiO2nanocatalysts were compared by removing methylene blue(MB)under visible light irradiation.The results show that the 0.8N/La/TiO2has higher activity.Meanwhile,the orthogonal test was used to optimize the photocatalysis process.The order of the influence on degradation of methylene blue is reaction time, the initial concentration of MB, catalyst amount and reaction temperature.The optimum condition is reaction time(180 min),catalyst amount(30 mg), the initial concentration of MB(10 mg/L), and reaction temperature(30 ℃).The photodegradation process of MB can be considered as a pseudo first-order kinetics reaction.关键词
共掺杂/TiO2/动力学/亚甲基蓝Key words
co-doped/TiO2/orthogonal test/methylene blue分类
化学化工引用本文复制引用
王小丽,谢昆,李廷真,王大才,陈星,程龙飞,董增飞..氮镧共掺杂的二氧化钛光催化剂制备及其工艺优化[J].人工晶体学报,2018,47(2):430-434,440,6.基金项目
重庆市教委科学技术研究项目(KJ1710255) （KJ1710255）
重庆市万州区科委资助项目(wzstc-042017104) （wzstc-042017104）
三峡库区水环境演变与污染防治重庆高校市级重点实验室(WEPKL2016LL-01,WEPKL2012MS-05) （WEPKL2016LL-01,WEPKL2012MS-05）
重庆三峡学院青年项目(17QN12) （17QN12）
重庆大学生2017年创新创业训练计划(201710643025) （201710643025）
