酸洗废液制备纳米铁酸锌及光催化实验研究  

Study on Preparation of Nano Zinc Ferrite from Hydrochloric Acid Pickling Wastewater and the Photocatalytic Experiment

作　　者：鲁秀国[1] 张耀 盘贤豪 朱芃芃 Lu Xiuguo;Zhang Yao;Pan Xianhao;Zhu Pengpeng(School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学土木建筑学院

出　　处：《华东交通大学学报》2019年第3期99-103,共5页Journal of East China Jiaotong University

基　　金：国家自然科学基金项目(51768018)

摘　　要：以铁作还原剂、氯酸钠作氧化剂预处理盐酸酸洗废液,利用共沉淀法制备铁酸锌(ZnFe2O4)前驱体,而后在不同温度下煅烧得到纳米ZnFe2O4晶体,将ZnFe2O4用于光降解玫瑰红B染料的实验研究中。结果表明,高温条件下制备的纳米ZnFe2O4具有较好的晶型和分散性,同一温度下煅烧得到的产品粒径均匀。在对玫瑰红B模拟废水的光催化处理中,0.2g/L的ZnFe2O4用量,表现出较好的催化性,经4次重复实验后,其催化效率仅降低10%左右,表明ZnFe2O4具有良好的稳定性。Hydrochloric acid pickling wastewater was pretreated by iron as deoxidizer and sodium chlorate as oxidant.The precursor of zinc ferrite(ZnFe2O4)was prepared by coprecipitation method,and the zinc ferrite crystals were obtained by calcination at different temperatures.Zinc ferrite was used as catalyst in photodegradation of Rhodamine B.The results showed that the nano-zinc ferrite had better crystalline form and dispersibility by calcination under high temperature with uniform particle size obtained by calcination at the same temperature.In the photocatalytic treatment of Rhodamine B simulated wastewater,zinc ferrite had a higher catalytic effect at 0.2 g/L.Its catalytic efficiency was only reduced about 10%after four repeated experiments,indicating that zinc ferrite still has great stability.

关 键 词：盐酸酸洗废液 共沉淀法 ZNFE2O4 玫瑰红B 

分 类 号：X703[环境科学与工程—环境工程]