氧化锌纳米材料制备及其超声协同催化降解染料废水  

Study on preparation of Zinc oxide nanomaterials and its ultrasonic synergistic catalytic degradation of dye wastewater

作　　者：黄欣[1] 高晓蕾 樊叶萍 刘世清[1] HUANG Xin;GAO Xiaolei;FAN Yeping;LIU Shiqing(College of Physics and Electronic Information Engineering,Zhejiang Normal University,Jinhua 321004,China)

机构地区：[1]浙江师范大学物理与电子信息工程学院,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2021年第3期264-269,共6页Journal of Zhejiang Normal University:Natural Sciences

基　　金：国家自然科学基金资助项目(11874326;11874327)。

摘　　要：为了研究不同形貌氧化锌-超声协同催化降解罗丹明B染料废水的性能,并探究超声功率对材料催化性能的影响,通过对原材料用量的调控,用水热法分别合成了海星状、球状和花状3种形貌的纳米氧化锌材料,并对所合成的氧化锌进行XRD,SEM等结构和形貌的表征.实验结果表明:海星状纳米氧化锌对罗丹明B的超声催化性能明显优于球状和花状的纳米氧化锌,且超声功率的提高一定程度上有利于提升氧化锌纳米材料的超声催化活性;活性物捕获实验表明,在超声催化过程中起主要作用的是羟基自由基、超氧自由基及空穴这些活性物.该研究可为未来利用自然界中的潜在振动能实现染料废水处理提供一种新思路.The ultrasonic synergistic catalysis performance of Zinc oxide in degradation of rhodamine B dye wastewater was studied.The effects of catalyst morphology and ultrasound power on the catalytic performance were explored.Three kinds of nano-Zinc oxide materials with starfish,spherical and flower shapes were synthesized through a hydrothermal method by adjusting the addition of raw materials.The structure and morphology of the synthesized Zinc oxide were characterized by XRD and SEM.The experimental results showed that the synergistic catalytic performance of starfish-shaped nano-Zinc oxide was better than that of spherical and flower-shaped nano-Zinc oxide,and the increase of ultrasonic power was beneficial to enhance the synergistic catalytic activity of Zinc oxide nanomaterials to a certain extent.The active matter capture experiments showed that the hydroxyl radicals,superoxide radicals and holes played an important role in the process of synergistic catalysis.It would provide a new idea for dye wastewater treatment by using potential vibration energy in nature in the future.

关 键 词：纳米氧化锌 形貌调控 超声催化 染料废水 

分 类 号：O484.4[理学—固体物理]