涤纶纤维上ZnO纳米棒阵列生长及光催化性能研究  

Preparation of ZnO Nanorod Arrays on Polyster Fiber and Study of the Photocatalytic Performance

作　　者：郑辉 杨若冰 邱晗 林志颖 吴寿强 ZHENG Hui;YANG Ruobing;QIU Han;LIN Zhiying;WU Shouqiang(College of Physics&Electronic Information Engineering,MinjiangUniversity,Fuzhou,Fujian 350108,China)

机构地区：[1]闽江学院物理与电子信息工程学院,福建福州350108

出　　处：《闽江学院学报》2024年第5期109-116,共8页Journal of Minjiang University

摘　　要：采用射频磁控溅射法在涤纶纤维上沉积ZnO籽晶层,在ZnO籽晶层上水热生长ZnO纳米棒阵列,通过在紫外线照射下降解罗丹明B研究了样品的光催化活性,用表面光电压(SPV)谱研究了ZnO纳米棒阵列表面内建电场。光催化性能测试结果显示,反应180 min后ZnO纳米棒阵列/涤纶样品和ZnO薄膜/涤纶样品的罗丹明B降解率分别为81%和33%,表明ZnO纳米棒阵列/涤纶样品的光催化活性显著大于ZnO薄膜/涤纶样品。SPV测试分析表明,ZnO纳米棒阵列表面存在较强内建电场,其方向由纳米棒体内指向表面。表面内建电场有利于光生电子、空穴的分离,进而提高了光催化反应的效率。In this article,we used RF magnetron sputtering to deposit ZnO seed layers on polyester fibers,and hydrothermally synthesize ZnO nanorod arrays on the seed layers.The photocatalytic activity of the samples was studied by degrading Rhodamine B under UV irradiation.The surface built-in electric field of the ZnO nanorod array was studied using surface photovoltage(SPV)spectroscopy.The photocatalytic performance test results showed that after 180 minutes of reaction,the degradation rates of Rhodamine B in ZnO nanorod array/polyester sample and ZnO film/polyester sample were 81%and 33%respectively,indicating that the photocatalytic activity of ZnO nanorod array/polyester sample was significantly higher than that of ZnO film/polyester sample.SPV testing analysis shows that there is a strong built-in electric field on the surface of the ZnO nanorod array,which is directed from the nanorod body to the surface.The built-in electric field on the surface is conducive to the separation of photo generated electrons and holes,thereby improving the efficiency of photocatalytic reactions on ZnO.

关 键 词：光催化 ZNO纳米棒阵列 涤纶织物 表面内建电场 

分 类 号：TQ426[化学工程]