摘要
以茶多酚为还原剂绿色合成氧化亚铜/无纺布复合材料,应用于染料的选择性去除.通过XRD、EDS、SEM、FTIR、BET、XPS等对复合材料进行表征分析,结果表明,Cu_(2)O颗粒呈较为规则的球形并均匀地分布于无纺布上;该复合材料对阴离子染料(金橙Ⅱ、刚果红、甲基橙)有良好的选择去除效果;其中,氧化亚铜/无纺布对金橙Ⅱ的去除率可达96.26%,去除过程符合伪二级动力学模型和Langmuir吸附等温模型;复合材料在3次循环去除染料后,去除率仍保持在75.41%,稳定性较高且能实现快捷回收.
The composite materials of Cu_(2)O/non-woven fabrics(Cu_(2)O/NF)were green synthesized by using tea polyphenol as the reducing agent,and utilized for selective removal of dyes.The morphological and structural properties of Cu_(2)O/NF were analyzed with XRD,EDS,SEM,FTIR,BET and XPS,and found that Cu_(2)O particles were somewhat ordered spherical shaped and evenly distributed on the non-woven fabrics.The Cu_(2)O/NF presented good capacity of selective removal towards anionic dyes such as OrangeⅡ,Congo Red and Methyl Orange.Amongst the removal rate of OrangeⅡreached 96.26%.The removal processes were well fitted as pseudo second-order dynamic and Langmuir adsorption isotherm models.Furthermore,the removal rate remained at 75.41%after three cycled use,suggesting good stability and reusability of the prepared Cu_(2)O/NF.
作者
赵妍
陈升宇
赵隆磊
冯河川
丰惠敏
秦传玉
ZHAO Yan;CHEN Shengyu;ZHAO Longlei;FENG Hechuan;FENG Huimin;QIN Chuanyu(Key Laboratory of Groundwater Resources and Environment,Ministry of Education,Jilin University,Changchun,130021,China;School of Chemistry and Environmental Engineering,Changchun University of Science and Technology,Changchun,130022,China)
出处
《环境化学》
CAS
CSCD
北大核心
2023年第10期3534-3545,共12页
Environmental Chemistry
基金
地下水资源与环境教育部重点实验室开放课题(202105008KF)
国家自然科学基金(42177049)资助.
关键词
绿色合成
茶多酚
氧化亚铜
无纺布
选择去除性
green synthesis
tea polyphenols
Cu2O
non-woven fabrics
selective removal
