TiO_(2)@UiO-66复合材料的制备及光催化降解有机染料  

Preparation of TiO_(2)@UiO-66 Composites and Photocatalytic Degradation of Organic Dyes

作　　者：张秋云 王丹丹 余荣菲 李伟华 张玉涛 马培华[3] ZHANG Qiuyun;WANG Dandan;YU Rongfei;LI Weihua;ZHANG Yutao;MA Peihua(School of Chemistry and Chemical Engineering,Anshun University,Anshun 561000,China;Engineering Technology Center of Control and Remediation of Soil Contamination of Guizhou Science and Technology Department,Anshun 561000,China;School of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550025,China)

机构地区：[1]安顺学院化学化工学院,贵州安顺561000 [2]贵州省科技厅土壤污染控制与修复工程技术中心,贵州安顺561000 [3]贵州大学化学与化工学院,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2023年第3期18-24,共7页Journal of Guizhou University:Natural Sciences

基　　金：贵州省科学技术基金资助项目(黔科合基础[2020]1Y054);贵州省大学生创新创业训练项目(202210667017);贵州省高等学校教学内容和课程体系改革项目(2022252)。

摘　　要：采用一锅水热法合成了TiO_(2)@UiO-66光催化剂,使用傅里叶红外光谱(FTIR)、扫描电子显微镜(SEM)、粉末衍射分析(XRD)、N_(2)-吸附脱附及X射线光电子能谱(XPS)等测试技术对催化剂结构、形貌进行表征,并以罗丹明B(RhB)为目标降解物,考察TiO_(2)@UiO-66的光催化性能。结果表明,在可见光的照射下,将0.05 g TiO_(2)@UiO-66投入到40 mg/L的RhB溶液中,光催化120 min时其降解率为87.7%,且该光催化剂能用于其它染料分子的降解,具有一定的普适性。In this research,TiO_(2)@UiO-66 composites were synthesized by one-pot hydrothermal method.The structure and morphology of composites were also characterized using test techniques such as Fourier infrared spectroscopy(FTIR),scanning electron microscopy(SEM),powder diffraction analysis(XRD),N_(2) adsorption desorption and X-ray photoelectron spectroscopy(XPS),and the photocatalytic activity of the TiO_(2)@UiO-66 under visible light irradiation was studied with Rhodamine B(RhB)solution as the target degradation pollutant.The results showed that the degradation rate of 0.05 g TiO_(2)@UiO-66 could reach 87.7%at 120 min of photocatalysis by putting it into 40 mg/L RhB solution under the irradiation of visible light.This photocatalyst can also be applied to photocatalytic degradation of other dyes,and it has a certain universality.

关 键 词：金属有机框架 复合材料 光催化 废水处理 罗丹明B 

分 类 号：O643.36[理学—物理化学] X703[理学—化学]