CNTs/La^(3+)-TiO_2催化剂的制备及其对亚甲基蓝降解性能研究  

Preparation of CNTs/La^(3+)-TiO_2 photocatalyst for methylene blue aqueous solution degradation

作　　者：郝露[1] 王芳芳[1] 徐山青[1] 仇群仁[1] 

机构地区：[1]南通大学纺织服装学院,江苏南通226019

出　　处：《上海纺织科技》2017年第4期50-53,共4页Shanghai Textile Science & Technology

基　　金：国家自然科学基金(51403106);江苏省自然科学基金(BK20140432);南通市科技局项目(BK2014005);教育部生态纺织重点实验室开放课题(KLET1308);江苏省2015年度普通高校研究生科技创新计划项目(KYLX15-1322);南通大学研究生科技创新计划项目(YKC15022)

摘　　要：结合静电纺丝和高温碳化方法制备了La^(3+)及碳纳米管(CNTs)不同掺杂量的TiO_2光催化剂,然后采用亚甲基蓝水溶液模拟印染废水,考察各种光催化剂的降解性能。同时,采用SEM、XRD、EDX、FTIR及UV-Vis对光催化剂的形貌、晶型、成分、内部结构以及光催化性能进行了表征和测试。试验结果显示,La^(3+)及CNTs共掺杂的TiO_2光催化剂的光催化活性得到显著提高。An innovative photoeatalyst, carbon nanotubes （ CNTs ） supported La-- - TiO2 photocatalyst with different components are successfully prepared via electrospinning and high temperature carbonization. The degradation properties of different photocatalysts are discussed taking methylene blue aqueous solution simulated as dyeing waste. The characterization and testing of microstructure, crystal type, internal structure and properties of photocatalyst are carried out by means of SEM, XRD, EDX, FTIR and UV-Vis. The results demonstrate that the presence of CNTs and La^3＋ in TiO： photocatalyst could significantly increase the photoactivity under sunlight.

关 键 词：光催化剂 印染 亚甲基蓝 降解性能 制备 

分 类 号：O643.36[理学—物理化学] X791[理学—化学]