SDS辅助微波水热法合成氧化锌纳米结构  

Preparation of ZnO nanostructure via SDS assisted microwave hydrothermal method

作　　者：余花娃[1] 邹豪文 雷世彬 刘洋 马璐倩 YU Huawa;ZOU Haowen;LEI Shibin;LIU Yang;MA Luqian(School of Science,Xi'an Polytechnic University,Xi'an 710048,China)

机构地区：[1]西安工程大学理学院,陕西西安710048

出　　处：《渤海大学学报（自然科学版）》2022年第3期217-223,共7页Journal of Bohai University:Natural Science Edition

基　　金：国家自然科学基金青年项目(No:61405151);陕西省教育厅专项科研计划项目(No:18JK0361)。

摘　　要：为了解决ZnO纳米材料在光催化处理染料溶液的效率低问题,以乙酸锌和氢氧化钠为原料,通过微波水热法制备了纳米ZnO光催化剂.利用扫描电镜(SEM),X射线衍射(XRD)和紫外可见吸收光谱(UV-Vis)等检测手段对ZnO产物的形貌和结构进行表征;以十二烷基硫酸钠(SDS)作为表面活性剂,研究了表面活性剂的含量对氧化锌纳米结构的影响;以甲基橙溶液为降解物,研究了ZnO产物的光催化性能.结果表明:当驱体溶液添加1.5 g的SDS时,产物呈现海胆状结构,平均直径约为1.5μm;SDS的加入提高了材料的比表面积及可见光利用率,当可见光照射100 min时,该产物对MO溶液具有很好的降解效果,其降解率则高达96.6%,远高于未添SDS的产物.In order to solve the problem of low efficiency of ZnO nanostructure in photocatalytic treatment for dyeing wastewater.ZnO nanostructure were synthesized via microwave hydrothermal method with Zn(AC)2and NaOH as raw materials respetively.The morphology and structure of the products were characterized by scanning electron microscope(SEM),X-ray differaction(XRD) and UV-Vis absorption spectrum.Using SDS as the surfactant, the effect of SDS content on crystal structure of ZnO nanostructure was investigated.The photocatalytic performance of the product was evaluated by MO solution as degradation target.The results showed that the urchin-like ZnO nanostructures with an average diameter about 1.5 μm were obtained when 1.5 g SDS was added to the solution.The addition of SDS increased the surface area and visible light efficiency of the ZnO.When the visible light was illuminated for 100 min, the product had a good effect on MO solution, and the degradation rate was up to 96.6%,which was much higher than that of the product without SDS.

关 键 词：微波水热法 SDS 甲基橙 氧化锌纳米结构 光催化性能 

分 类 号：O643.3[理学—物理化学]