摘要
通过微波辅助溶剂热原位合成反应,制备了纳米硫化镉(CdS)颗粒负载量更高且光催化吸附降解性能更优的氧化细菌纤维素@纳米硫化镉(TOBC@CdS)复合凝胶材料。结果表明,在羧基的络合作用下,立方晶型纳米CdS团簇以类细胞感受器的形貌吸附在TOBC纤维非结晶区域,形成了较为稳定的有机无机杂化结构。可见光照射180 min后,TOBC@CdS纳米复合凝胶可有效光催化降解87.27%的亚甲基蓝(MB);实验重复5次后,其光催化降解性能没有明显衰减。
The oxidized bacterial cellulose@cadmium sulfide(TOBC@CdS)nanocomposite gel with high CdS loading percentage and better photocatalytic degradation performance were obtained through the microwave assisted solvo-thermal in-situ synthesis reaction.The results showed that cell receptor-like cubic CdS nanoclusters were mainly attached to amorphous region of TOBC fiber via complexation of carboxyl group,forming stable organic-inorganic hybrid structure.TOBC@CdS nanocomposite gel possessed efficient photocatalytic degradation activity with 87.27%removal of MB under 180 min visible light irradiation,and exhibited satisfactory cyclic utilization with slight attenuation after 5 cycles.
作者
钱鑫
徐永建
QIAN Xin;XU Yongjian(College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper,Key Lab of Paper-based Functional Materials of China National Light Industry,Shaanxi University of Science&Technology,Xi’an,Shaanxi Province,710021)
出处
《中国造纸》
CAS
北大核心
2022年第6期35-42,共8页
China Pulp & Paper
基金
高水平外籍专家项目(GDT20186100425)
陕西科技大学学术带头人团队项目(2013XSD25)。
