复合纳米TiO2透明光触媒乳液的制备及性能  

On preparation and properties of composite nano-TiO_2 transparent photocatalyst emulsion

作　　者：李晓苇[1] 赵开封 胡晓雪 卢琪[1] 眭慧东 李建伟[1] 刘爽[2] LI Xiaowei ZHAO Kaifeng HU Xiaoxue LU Qi SUI Huidong LI Jianwei LIU Shuang(Hebei Key Laboratory of Optic electronic Information Materials, College of Physics Science and Technology, Hebei Univcrsity, Baoding071002, China College of Quality and Technology Supervision, Hebei University, gaoding 071002, China)

机构地区：[1]河北大学物理科学与技术学院,河北省光电信息材料重点实验室,河北保定071002 [2]河北大学质量技术监督学院,河北保定071002

出　　处：《河北大学学报（自然科学版）》2017年第5期464-470,共7页Journal of Hebei University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(21201053;51607054;51772073);河北省自然科学基金资助项目(F2014201078;A2015201050);河北省高等学校科学技术研究项目(ZD2016055);河北省杰出青年基金(A2017201082);河北省第二批青年拔尖人才计划项目(702800116025);河北省大学生创新创业训练计划项目(2016105;2016127;2016170;2016177);河北大学研究生创新资助项目(X201730);河北大学实验室开放项目(sy201639);河北大学杰出青年基金资助项目(2015JQ02);2017年国家级大学生创新创业训练计划创新训练项目

摘　　要：采用草酸、四氯化钛、氨水、氟化铵、硼酸等药品为主要实验原料,通过常温络合-控制水解新实验方法,制备出硼氟共掺杂的纳米TiO_2透明乳液.将样品置于小型太阳光模拟器的模拟太阳光下照射,进行对酸性红3R染料的降解实验,分别对染料初始浓度、样品掺杂浓度、掺杂纳米TiO_2体系pH值、加热回流时间等变量对降解效果的影响进行相关讨论.实验结果表明,硼/氟掺杂浓度达到0.003mol/L,pH值为6,回流时间为15min时,制备的纳米TiO_2样品的光催化性能最佳.在模拟太阳光照射1h后,质量浓度50mg/L的酸性红3R染料溶液降解率可达98%以上.Boron/fluoride co-doped nano TiO_2 colorless and transparent hydrosol was synthesized by a novel complexation-controlled hydrolysis method at room temperature by using TiCl_4,oxalic acid,NH_3·H_2O,ammonium fluoride,and boric acid etc as raw materials.The sample with the acid red 3R was studied by the photocatalytic degradation under simulated sunlight irradiation.To study the effects of reflux time,pH and concentration and reaction conditions of the synthesis process and properties of the materials,the optimum preparation conditions were found out.The results show that when the doping amount is 0.003mol/L,the pH value is 6,the reflux time is 15 min,the photocatalytic activity of doped nanometer TiO_2 is the highest.The degradation rate of acid red 3Rdye solution with the concentration of 50 mg/L was more than98% after the sun exposure.

关 键 词：硼氟共掺杂 纳米TiO2乳液 水解法 光催化 

分 类 号：TQ613.5[化学工程—精细化工]