有色金属科学与工程2024，Vol.15Issue(1)：8-14,7.DOI:10.13264/j.cnki.ysjskx.2024.01.002
石墨烯生产废液中双球状碳酸锰的提取及其电化学储锂性能
Extraction and electrochemical lithium storage performances of double-spheroid manganous carbonate from graphene production waste effluent
摘要
Abstract
According to the"double carbon"targets and circular economy,various wastes must be recycled as much as possible.Therefore,manganous ions in the waste effluent from graphene production were extracted with Na2CO3 as the precipitation agent by one-step chemical reaction,forming light yellow MnCO3 powder.Meanwile,its electrochemical lithium storage properties were studied.The results show that the removal rate of manganous ions is 99.9% and the recovery rate of MnCO3 is 92.6% .The extracted MnCO3 powders consist of many double spheroids with a particle size of 0.5-1.5 μm,which belong to the hexagonal crystalline.After cycling for 300 cycles at 0.5 A/g and 1.0 A/g,the corresponding reversible capacity is maintained at about 570 mAh/g and 418 mAh/g,respectively.This article provides a new idea for the recovery of graphene industrial wastewater,helping to reduce environmental emissions.关键词
循环经济/石墨烯生产废液/碳酸锰/负极材料Key words
circular economy/waste effluent from graphene production/manganous carbonate/cathode material分类
化学化工引用本文复制引用
侯宏英,贾彦鹏,李俊凯,兰建,陈方淑..石墨烯生产废液中双球状碳酸锰的提取及其电化学储锂性能[J].有色金属科学与工程,2024,15(1):8-14,7.基金项目
国家自然科学基金资助项目(52263010) （52263010）
云南省第十九批学术技术带头人项目(1097-10978240) （1097-10978240）
