拜耳赤泥改性用于含酚废水处理实验研究  

Experimental Study on Modification of Red Mud by Bayer Process for Treatment of Phenolic Wastewater

作　　者：吴慧 柯军 许德昇 占兴 WU Hui;KE Jun;XU De-sheng;ZHAN Xing(School of Chemistry and Environmental Engineering,Wuhan Institute of Technology,Wuhan 430205,China;School of Environmental Science and Technology,DalianUniversityofTechnology,Dalian 116024,China)

机构地区：[1]武汉工程大学化学与环境工程学院,湖北武汉430205 [2]大连理工大学环境学院,辽宁大连116024

出　　处：《广州化学》2021年第4期44-49,共6页Guangzhou Chemistry

摘　　要：以炼铝行业固体废弃物赤泥为原料,采用酸脱碱后改性再水热的方法制备了硫化镉/改性赤泥复合材料(Cd S/ARM)。通过XRD、SEM与TEM等表征方法分析了复合材料的晶体结构与微观形貌。研究其对2,4-二氯苯酚(2,4-DCP)的降解,探讨了不同比例复合材料的光催化活性,当中20%Cd S/ARM对2,4-DCP的降解效果最优,达到60%,是单体活性赤泥的1.28倍。该研究既为2,4-DCP的去除提供了一种新颖且高效的光催化材料,也为炼铝厂资源化利用赤泥提供了一种新的思路。The CdS/ARM composite was synthesized by the method of acid modification and hydrothermal through using solid waste red mud as the raw material.The crystal structure and micro morphology of the composite were analyzed by XRD,SEM and TEM characterization.The photocatalytic activity of different proportions of composite materials was discussed by degrading phenol-containing wastewater.Among them,the 20%CdS/ARM has the best degradation efficiency of 2,4-DCP,reaching to 60%,which is 1.28 times higher than that of pure red mud.This work not only provides a novel and efficient photocatalytic material for the removal of 2,4-DCP,but also gives a new idea for the disposal of red mud in aluminum smelters.

关 键 词：拜耳赤泥 改性 硫化镉 光催化 2 4-DCP 

分 类 号：X751[环境科学与工程—环境工程]