化学工程2026，Vol.54Issue(1)：7-12,19,7.DOI:10.3969/j.issn.1005-9954.2026.01.002
铜渣衍生制备CTAB-Fe3O4@GM吸附剂及其吸附Cr(Ⅵ)性能
Preparation of CTAB-Fe3O4@GM adsorbent derived from copper slag and its adsorption performance for Cr(Ⅵ)
摘要
Abstract
Fe3O4@GM(iron-base geopolymer)was synthesized by copper slag as raw material,NaOH and water glass solution as activators,and then was modified with surfactant CTAB(cetyltrimethylammonium bromide)to construct CTAB-Fe3O4@GM.The synthesized CTAB-Fe3O4@GM was used as an adsorbent to efficiently remove Cr(Ⅵ)in water.The effects of pH and CTAB-Fe3O4@GM dosage on Cr(Ⅵ)adsorption performance were mainly explored,and its adsorption mechanism was analyzed through adsorption kinetics,thermodynamics,Zeta,XPS and BET.The results show that the adsorption process follows pseudo-second-order kinetics(R2=0.99)and conforms to the Langmuir isotherm model(R2=0.99),achieving a maximum adsorption capacity of 156.50 mg/g at pH=1 and 0.1 g/L CTAB-Fe3O4@GM.The removal process of Cr(Ⅵ)by CTAB-Fe3O4@GM is primarily based on chemical adsorption,including complexation,electrostatic attraction,redox and pore precipitation mechanisms.This study follows the eco-friendly concept of"waste control",demonstrating favorable economic and environmental benefits for the resource utilization and wastewater purification of solid waste-derived high-efficiency adsorbents.关键词
铜渣/地聚合物/十六烷基三甲基溴化铵/Cr(Ⅵ)/吸附机理Key words
copper slag/geopolymers/CTAB/Cr(Ⅵ)/adsorption mechanism分类
资源环境引用本文复制引用
黄婷,单书月,罗中秋,周新涛,陆艳,蔡秀楠..铜渣衍生制备CTAB-Fe3O4@GM吸附剂及其吸附Cr(Ⅵ)性能[J].化学工程,2026,54(1):7-12,19,7.基金项目
国家自然科学基金资助项目(22406075) （22406075）
云南省基础研究专项-面上项目(202501AT070376,202401AT070384) （202501AT070376,202401AT070384）
云南省"兴滇英才支持计划"青年人才专项(YNWR-QNBJ-2020-063) （YNWR-QNBJ-2020-063）
