摘要
采用溶胶凝胶法制备La-ZnO/SBA-15催化剂,并通过XRD、TG-DSC、XPS、TEM、SEM、N_2吸附脱附等表征分析La-ZnO/SBA-15的组成和性质,考察其对孔雀石绿溶液的催化活性。结果表明,掺杂后的SBA-15仍保持有序的二维六方结构,当n(Zn)∶n(Si)=1时,可见光照射2h,孔雀石绿降解率达99. 8%。动力学研究表明,催化剂对孔雀石绿溶液的降解符合一级反应动力学。
La-ZnO/SBA-15 catalyst was prepared by sol-gel method. The composition and properties of La-ZnO/SBA-15 were characterized by XRD,TG-DSC,XPS,SEM and N2 adsorption and desorption. Its catalytic activity on malachite green( MG) solution was investigated. The results showed that the doped SBA-15 still maintains an ordered two-dimensional hexagonal structure. When n( Zn) ∶ n( Si) = 1,visible light irradiation for 2 h,the degradation rate of MG was 99. 8%. Kinetic studies showed that the degradation of MG solution by the catalyst is consistent with the first-order reaction kinetics.
作者
田志茗
王鑫月
Tian Zhiming;Wang Xinyue(College of Chemistry and Chemical Engineering, Qiqihar University , Qiqihar 161006)
出处
《化学通报》
CAS
CSCD
北大核心
2019年第4期334-339,共6页
Chemistry
基金
黑龙江省教育厅基本科研业务专项(135209219)
齐齐哈尔市科学技术局项目(GYGG-201308)资助
