低温原位合成光催化剂及其对染料降解性能研究  

Low-Temperature In-Situ Synthesis of Photocatalysts and Their Performance in Dye Degradation

作　　者：郑丽 马佳音 杨迪迪 ZHENG Li;MA Jiayin;YANG Didi(Qujing Medical College,Qujing 655011,Yunnan China;Qujing Normal University,Qujing 655011,Yunnan China)

机构地区：[1]曲靖医学高等专科学校,曲靖655011 [2]曲靖师范学院,曲靖655011

出　　处：《染料与染色》2025年第1期58-61,共4页Dyestuffs and Coloration

摘　　要：本文以二氧化硅基SBA-15为载体,四氟化钛为光催化剂前体,常温下通过四氟化钛原位刻蚀反应合成了TiO_(2)-SBA-15复合光催化剂。采用扫描电镜法(SEM)、X射线晶体衍射(XRD)、紫外可见漫反射光谱(UVVis DRS)、红外光谱(FT-IR)等方法对催化剂进行了表征。对模拟污染物罗丹明B溶液进行了光降解实验。结果表明:催化剂制备过程中存在水分时,有利于催化剂结晶度和罗丹明B光降解效率的提高。A kind of composite photocatalyst TiO2-SBA-15 were prepared from Silica-based carrier SBA-15 and photocatalyst precursor titanium tetrafluoride by in-situ etching reaction at room temperature.The photocatalysts were characterized by SEM,XRD,UVVis DRS and IR.As a simulated pollutant,Rhodamine B was photodegradated by the photocatalyst in solution.The experiment results showed that the presence of moisture during the catalyst preparation could improve the crystallinity of the catalyst and increase the photodegradation efficiency.

关 键 词：SBA-15 四氟化钛 原位刻蚀法 低温合成 

分 类 号：TQ610.7[化学工程—精细化工]