氧化石墨烯吸附模拟废水中重金属的研究  

Study on the Adsorption of Heavy Metals in Simulated Wastewater by Graphene Oxide

作　　者：张琳[1] 严熠博 汤文飞 ZHANG Lin;YAN Yi-bo;TANG Wen-fei(Northwestern Polytechnical University,Xi'an 710129,China)

机构地区：[1]西北工业大学,陕西西安710129

出　　处：《化学与粘合》2022年第5期369-371,431,共4页Chemistry and Adhesion

基　　金：国家自然科学基金项目(编号:62005216)。

摘　　要：对氧化石墨烯吸附模拟废水中Cu、Pb、Cd、Zn四种重金属的条件和效率进行了探究。将石墨烯进行氧化处理得到氧化石墨烯,对模拟废水中的重金离子进行吸附处理,计算吸附率。实验表明,随着模拟液浓度从10mg/L增加至200mg/L,氧化石墨烯对Cu、Pb、Cd、Zn四种重金属离子的吸附率分别下降40.3%、41.6%、44.9%以及47.6%。吸附过程十分高效,在5min内就能达到峰值;温度对吸附率呈正相关关系;吸附过程适宜在中性偏弱酸性条件下进行。为开展后续研究提供了理论依据。The adsorption conditions and efficiency of four kinds of heavy metal,which are Cu,Pb,Cd and Zn in simulated wastewater by graphene oxide are investigated.The graphene is oxidized to obtain graphene oxide(GO),and the heavy metal ions in simulated wastewater are adsorbed and treated to calculate the adsorption rate.The results show that as the concentration of simulated solution increases from 10mg/L to 200mg/L,the adsorption rates of Cu,Pb,Cd and Zn by GO decreases by 40.3%,41.6%,44.9%and 47.6%respectively.The adsorption process is very efficient and can reach the peak of adsorption in 5min.The temperature has a positive correlation with the adsorption process.The adsorption process should be carried out under neutral and weak acidic conditions.It provides a theoretical basis for the further research.

关 键 词：氧化石墨烯 模拟废水 重金属 

分 类 号：TQ424[化学工程]