毕业设计论文中文摘要本论文以葡萄糖作为碳源,Na2WO4和Zn(NO3)2为原料,在不添加任何表面活性剂的情况下,采用一步水热法制备了一文棒状C掺杂ZnWO4光催化剂,通过X射线衍射(XRD),扫描电子显微镜(SEM),透射电子显微镜(TEM)等技术对其形貌和结构进行了表征。以紫外光为光源,评价了该催化剂光催化降解RhB,MB,MO的活性,考察了葡萄糖含量染料的种类等对C掺杂ZnWO4光催化性能的影响。实验结果表明,碳源加入量为30mg,180℃水热24h条件下所制备的C掺杂ZnWO4光催化剂对降解RhB,MB,MO具有较高的光催化活性。该催化剂重复使用3次后,催化降解效果无明显降低,表明催化剂性稳定可以循环使用。23281 毕业论文关键字: 一文,水热法,C掺杂,光催化
毕业设计论文外文摘要
Title: Preparation of 1D C-doped ZnWO4 nanomaterial and
their photocatalytic performance
Abstract:
Taking glucose as carbon source, Na2WO4 and Zn (NO3) 2 as a raw material, without adding any surfactants, we take one-step to prepare one-dimensional rod-like C-doped ZnWO4 by hydrothermal method. We use X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) techniques to research their morphology and structure. We use the UV light source to evaluate the photocatalytic degradation of RhB, MB, MO and we evaluate the effects of C-doped ZnWO4 photocatalytic properties of species such as glucose dye. Experimental results show that when the amount of carbon added 30mg of glucose, under hydrothermal conditions of 180 ℃ for 24h, the prepared photocatalyst C-doped ZnWO4 has high photocatalytic activity of degradating RhB, MB, MO. The catalyst can be reused after three times, and there is no obvious decrease in catalytic degradation effect, indicating that the catalyst of the stable recycling.
Keywords: One-dimensional, hydrothermal method, C-doped, photocatalytic performance
目 次
1 引言...1
1.1 本课题的研究背景..1
1.2 国内外研究现状..2
2 基本理论4
2.1 光催化的原理...4
2.2 水热反应...6
2.3 XRD简介8