中空多孔ZnO纳米纤维的制备及光催化性能  

Preparation of hollow porous zinc oxide nanofibers and photocatalytic properties

作　　者：郭奥莹 刘贵山 江宇[1] 曹鹏斌 闫爽 GUO Aoying;LIU Guishan;JIANG Yu;CAO Pengbin;YAN Shuang(School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China;Key laboratory of new materials and material modification, Dalian Polytechnic University, Dalian 116034, China)

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034 [2]大连工业大学,辽宁省高校新材料与材料改性重点实验室,辽宁大连116034

出　　处：《大连工业大学学报》2020年第4期302-307,共6页Journal of Dalian Polytechnic University

基　　金：辽宁省高等学校产业技术研究院重大项目(2018LY017).

摘　　要：以PAN为络合剂,结合Zn(AC)2·2H2O配置前驱体溶液,采用静电纺丝的方法制备了PAN/Zn(AC)2复合纤维,通过煅烧得到分布均匀的ZnO纳米纤维。利用红外光谱仪和差热-热重分析仪分析了复合纤维的热行为,X射线衍射仪和扫描电子显微镜表征了纤维的物相结构及形貌,比表面积分析仪测试了纤维的比表面积及孔径等,并通过紫外-可见分光光度计的吸收光谱判定纤维对罗丹明B的水溶液的降解效果。结果表明,所制备ZnO纳米纤维直径分布在100~200 nm,表面多孔且内部为中空结构;复合纤维中Zn(AC)2含量越低,光催化性能越明显;煅烧时的升温速率越快,光催化效果反而降低。The PAN/Zn(AC)2 composite fibers were prepared using the electrospinning with PAN as the complexing agent,combining with Zn(AC)2·2H2O to obtain precursor solution,and the distributed ZnO nanofibers were obtained by calcining.The thermal behavior of the composite fibers was analyzed by infrared spectrometer and differential thermal gravimetric analyzer.The phase structure and morphology of the fibers were characterized by X ray diffraction and scanning electron microscope.The specific surface area and pore diameter of the fibers were measured by specific surface area analyzer.The degradation effect of Rhodamine B in aqueous solution was determined by absorption spectrum of ultraviolet visible spectrophotometer.The results showed that the diameter of ZnO nanofibers were distributed between 100 and 200 nm with porous surface and hollow structure inside.The lower the content of Zn(AC)2 in the composite fiber,the more obvious the photocatalytic performance;the faster the heating rate,the lower the photocatalytic effect.

关 键 词：静电纺丝 ZnO纳米纤维 光催化 复合纤维 

分 类 号：TB332[一般工业技术—材料科学与工程]