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文章编号： 1672-6987（2020）03-0056-06； DOI： 10.16351/j.1672-6987.2020.03.007
王小美
（青岛科技大学 机电工程学院，山东 青岛 266061）
摘要： 分别以廉价易得的3种锌化合物为锌源，Na2S为硫源，基于自制的撞击流设备，采用简单、高效的一步撞击流法制备了分散性良好、尺寸分布均匀、颗粒细小且具有优异光催化性能的ZnS纳米颗粒。探究了不同锌源、反应物浓度和反应温度对紫外光照射下纳米ZnS的光催化性能的影响。研究结果表明：在Zn(NO3)2·6H2O为锌源，反应物浓度为02 mol·L-1，反应温度为80 ℃的优选条件下，制备的纳米ZnS具有优异的光催化性能和良好的光催化稳定性，以其为催化剂降解甲基橙（MO）溶液12 min，甲基橙的降解率高达9922%，循环降解3次后甲基橙的降解率仍能保持首次降解率的8524%。
关键词： 撞击流法； ZnS纳米颗粒； 光催化； 降解； 甲基橙
中图分类号： O 614文献标志码： A
引用格式： 王小美. 撞击流法制备纳米ZnS及其光催化性能\[J\]. 青岛科技大学学报（自然科学版）， 2020， 41（3）： 56-61.
WANG Xiaomei. Impinging stream method preparation and photocatalytic property of ZnS nanomaterials\[J\]. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2020， 41（3）： 56-61.
Impinging Stream Method Preparation and Photocatalytic
Property of ZnS NanomaterialsWANG Xiaomei
(College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China)Abstract: With three inexpensive and available zinc compounds as zinc source and sodium sulfide as sulfur source, a simple and efficient one-step impinging stream method was used to prepare fine, uniform, and well dispersed ZnS nanoparticles based on self-designed impinging stream equipment. The effects of zinc source, reactant concentration and reaction temperature on photocatalytic properties of ZnS nanoparticles under UV irradiation were investigated. The results showed that the ZnS with best photocatalytic activity and stability was obtained under the reaction condition where Zn(NO3)2·6H2O was used as zinc source, the reactant concentration was 02 mol·L-1, and the reaction temperature is 80 ℃. The corresponding optimal degradation of methyl orange (MO) in 12 min reached 9922%, and the degradation after three cycling test retained 8524% of the original run.
Key words: impinging stream method; ZnS nanoparticles; photocatalysis; degradation; methyl orange
收稿日期： 2019-04-04
基金项目： 国家自然科学基金项目（51572137，51672144）.
作者简介： 王小美（1994—），女，硕士研究生.
