宿州学院学报2025，Vol.40Issue(3)：18-23,28,7.DOI:10.3969/j.issn.1673-2006.2025.03.004
层状镁铝氧化物的改性及其吸附性能
Modification and Adsorption Performance of Layered Mg-Al Oxides
摘要
Abstract
Due to its high isoelectric point and low toxicity,magnesium oxide has attracted much attention in the re-moval of toxic dyes from wastewater.A series of layered Mg-Al Oxides were prepared using hydrotalcite as precur-sor.The structure of adsorbents was characterized by N 2 adsorption-desorption,X-ray diffraction,scanning electron microscopy,transmission electron microscopy.Congo red adsorption experiments indicate that modified layered Mg-Al Oxides exhibited the maximum adsorption capacities up to 6 235 mg/g,respectively.It was closely related to the Mg-Al nanosheet on the surface of adsorbents.Therefore,the morphology property of adsorbents could be considered as the foremost factor influencing adsorption performance for Congo red.Also,it was found that the adsorption process fit well with pseudo-second-order equation.关键词
水滑石/层状镁铝氧化物/吸附/刚果红Key words
hydrotalcite/layered Mg-Al Oxides/adsorption/Congo red分类
通用工业技术引用本文复制引用
刘书群,车王燕,罗飞,刘理华..层状镁铝氧化物的改性及其吸附性能[J].宿州学院学报,2025,40(3):18-23,28,7.基金项目
安徽省重点研发计划高新领域项目(202304a05020080) （202304a05020080）
安徽省高校自然科学研究重大和重点项目(2023AH040054 （）
2023AH050322) （）
淮北市先进化工技术及新材料研究院产学研项目(22100146 （）
22100189). （）
