ZnSnO_(3)/纤维素的水热制备及光催化性能研究  

Hydrothermal preparation and photocatalytic properties of ZnSnO_(3)/cellulose composite materials

作　　者：王昆 侯正浩 王丽欣 贾晋博 李一涵 张绍岩[1,2] Wang Kun;Hou Zhenghao;Wang Lixin;Jia Jinbo;Li Yihan;Zhang Shaoyan(Department of Chemical Engineering,Shijiazhuang University,Shijiazhuang 050035,Hebei,China;Key Laboratory of Advanced Energy Materials Chemistry of Ministry of Education,School of Chemistry,Nankai University,Tianjin 300074,China)

机构地区：[1]石家庄学院化工学院,河北石家庄050035 [2]南开大学化学学院先进能源材料化学教育部重点实验室,天津300074

出　　处：《工业催化》2022年第12期39-43,共5页Industrial Catalysis

基　　金：石家庄市科学技术研究与发展计划项目(201240771);河北省高等学校科学技术研究项目(ZC2022082);河北省高等学校科学技术研究项目(BJ2021097)。

摘　　要：以天然纤维素为模板,利用水热合成法制备ZnSnO_(3)/纤维素复合材料,并探究反应前体物浓度对复合材料制备的影响。采用SEM、XRD、TG等对合成材料进行表征,并通过光催化降解罗丹明B研究了复合材料的光催化性能。结果表明,纳米ZnSnO_(3)颗粒通过水热成功包覆在纤维素纤维表面,且复合材料能够完美保持滤纸纤维素独特的层级多孔网状结构。以ZnSnO_(3)/纤维素复合材料作为光催化剂对染料RhB进行降解时,相比于纯ZnSnO_(3),复合材料表现出更优异的光催化性能,光降解效率可达98%以上,5次循环测试后,对RhB的降解仍可达94.3%,具有良好的稳定性。此外制备得到的宏观纤维结构的复合材料,能够为解决催化材料在实际应用中难以回收的问题提供思路,对光催化及能源重复利用的进一步发展具有重要意义。A novel ZnSnO_(3)/cellulose composite was prepared by a simple hydrothermal synthesis method using natural cellulose as the template.The effect of the concentration of precursors on the preparation of the composite was investigated.The composite materials were characterized by SEM,XRD and TG,and its photocatalytic properties were investigated by photocatalytic degradation of Rhodamine B(RhB).The results demonstrated that the composite material perfectly maintained the unique hierarchical porous network structure of the filter paper,and ZnSnO_(3)particles were successfully coated on the surface of cellulose fibers through hydrothermal treatment.As the photocatalyst for degradation of RhB,the ZnSnO_(3)/cellulose composite had better photocatalytic performances compared with pure ZnSnO_(3),and it degradation efficiency could reach more than 98%.In addition,the degradation for RhB of the ZnSnO_(3)/cellulose was still 94.3%after 5 cycles,demonstrating that the composite had excellent cycling stability.The as-prepared composite material with macro fibrous structure can provide a strategy for solving the problem of recovery of catalytic materials in practical applications,which has a great significance on the further development of photocatalysis and reuse of energy.

关 键 词：催化剂工程 偏锡酸锌 天然纤维素 水热合成 复合材料 光催化 

分 类 号：TQ426.6[化学工程] TQ034