文献类型：期刊文献

英文题名：Preparation of Loess-Clay Based Eco-Friendly Geopolymer for Efficient Removal of Pollutants in Water

作者：Li, Fangrong[1];Yang, Yongyi[1];Liu, Yan[1];Yang, Juanmei[1];Fan, Guohui[1]

第一作者：李芳蓉

通信作者：Li, FR[1]

机构：[1]Gansu Univ Chinese Med, Coll Pharm, Dept Chem, Chengguanqu Dingxidonglu 35, Lanzhou 730000, Peoples R China

第一机构：甘肃中医药大学药学院（西北中藏药协同创新中心办公室）

通信机构：[1]corresponding author), Gansu Univ Chinese Med, Coll Pharm, Dept Chem, Chengguanqu Dingxidonglu 35, Lanzhou 730000, Peoples R China.|[1073501e14fb35863569f]甘肃中医药大学药学院（西北中藏药协同创新中心办公室）;[10735]甘肃中医药大学;

年份：2024

外文期刊名：CHEMICAL ENGINEERING & TECHNOLOGY

收录：;EI(收录号：20244417293993);Scopus(收录号：2-s2.0-85207444609);WOS:【SCI-EXPANDED(收录号:WOS:001344176800001)】；

基金：The project was supported by the National Natural Science Foundation of China (22161041), Gansu Educational Science Planning Grant Program (GS[2022]GHB1910), and the project of Gansu University of Chinese Medicine (YBXM-2021-36).

语种：英文

外文关键词：Eco-friendly materials; Geopolymer; Promoting plant growth; Removing pollutants

摘要：Heavy metals and dyes cause serious harm for water environment, geopolymer materials with the large pores and specific surface area, and easy modification of pore surface have received extensive attention in wastewater treatment. Herein, using loess-clay (LC) as natural mineral materials, we developed an eco-friendly geopolymer of loess-clay (GpLC) with excellent adsorption properties and promotion plant growth was prepared by alkali excitement. Its morphology and structure were exhibited by scanning electron microscopy, Fourier transform infrared spectroscopy, XRD, and Brunauer-Emmett-Teller. Moreover, its adsorption property for removing metal ions and different dyes was measured, and the adsorption kinetics and thermodynamics were investigated. GpLC presented excellent adsorption ability for Pb2+, which the removal rate got to 98.7 %. It had the universality of removing organic pollutants, and the removal rate reached to 98.0 %. It was dominated chemisorption and single-layer adsorption, which GpLC conformed to quasi-second-order adsorption kinetics, and being more consistent with Langmuir isothermal model. Furthermore, it was found that GpLC could promote growth of crops as it contain P and K element with essential element of plants. In summary, it provides insights and strategy for developing a kind of eco-friendly functional materials with strong adsorption capacity and promoting plant growth, and it is an effective method for reusing loess resources.