期刊论文

Removal of Sr2+ from radioactive wastewater by the composite MnO2/MCM-41

中文

工业水处理

1005-829X

2024

44

2

105-111

10.19965/j.cnki.iwt.2023-0109

42177074:国家自然科学基金

本校为第一机构

采用一锅法制备MnO2/MCM-41复合材料,探究其对放射性废水中Sr2+的去除.通过SEM、BET、FT-IR对复合材料进行了表征.探究MnO2和MCM-41的质量比、pH、吸附时间、竞争离子效应等参数对其吸附性能的影响.结果表明,复合材料能迅速吸附水中Sr2+,并在 120 min达到吸附平衡,最大吸附容量为 85.46 mg/g.MnO2 和MCM-41的质量比为4∶1 时复合材料具有最高的吸附容量,在pH为4～9范围内复合材料具有较高的吸附性能,此外复合材料在Na+、K+、Mg2+、Ca2+存在的情况下依然保持良好的吸附容量,抑制吸附能力遵循Na+

MnO2/MCM-41 composite was prepared by one-pot method to investigate its removal of Sr2+ from radioac-tive wastewater.The prepared composite were characterized by SEM,BET,FT-IR.The effects of parameters such as mass ratio,pH,adsorption time and competing ion effect of MnO2 and MCM-41 on the adsorption test were investi-gated.The results showed that the composite adsorbent could rapidly adsorb Sr2+ in water and reached the adsorp-tion equilibrium in 120 min with the maximum adsorption capacity of 85.46 mg/g.The composite adsorbent had the highest...