MnO_(x)/TiO_(2)复合材料制备及光催化性能研究  

Preparation and Photocatalytic Performance of MnO_(x)/TiO_(2) Composite Materials

作　　者：娄有信[1] 杨子 王旭平 赵萍[1] 张艳飞 赵金博[1] LOU You-xin;YANG Zi;WANG Xu-ping;ZHAO Ping;Zhang Yan-fei;ZHAO Jin-bo(School of Materials Science and Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan250353,Shandong,China;Henan Building Materials Research and Design InstituteCo.,Ltd,Henan Academy of Sciences,Zhengzhou450002,Henan,China)

机构地区：[1]齐鲁工业大学(山东省科学院)材料学部,济南250353 [2]河南省科学院河南建筑材料研究设计院,郑州450002

出　　处：《佛山陶瓷》2022年第6期28-30,36,共4页Foshan Ceramics

基　　金：山东省科学院青年合作基金(2018QNHZ01)。

摘　　要：采用水热法辅助技术制备MnO_(x)/TiO_(2)复合材料,利用XRD、UV-Vis与SEM表征技术对MnO_(x)/TiO_(2)复合材料进行分析,并测定了MnO_(x)/TiO_(2)对亚甲基蓝的光催化效果。SEM和XRD测试结果表明:复合材料由棒状得二氧化钛与颗粒状的氧化锰组成,二氧化钛结构中含锐钛矿、金红石两种物相,氧化锰也包含二氧化锰和三氧化二锰两种物相结构。通过紫外-可见分光光度计测定亚甲基蓝浓度方法,计算亚甲基蓝降解率,发现模拟太阳光源照射10min后,亚甲基蓝降解率可达40%,当溶液在碱性条件下时,亚甲基蓝降解率可提高到90%。The series of MnO_(x)/TiO_(2)composites were synthesized by a hydrothermal-assisted approach.The products were characterized by XRD,UV–Vis and SEM.The photocatalytic performance of MnOx-TiO2 for mythylene blue was further investigated.The SEM and XRD results indicated that the products were composed of rod-like TiO2 and Grainy MnOx.The TiO2 contained mainly two phases of rutile and anatase phases.As well,MnOx has also contained two phases of MnO2 and Mn2O3.The photocatalytic degradation rate was measured by the calculation of the absorbance of mythylene blue measured by UV–Vis spectrum.The maximum photocatalytic degradation rate of the mythylene blue was 40%under simulated sunlight irradiation.Moreover,the photocatalytic degradation rate rose up to 90%under the alkali condition.

关 键 词：二氧化钛 复合材料 光催化性能 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] TB332[一般工业技术—材料科学与工程]