Study on copper(II) ions adsorption on graphene materials

被引：0
|
作者：
Tian, Weihua [1 ]
机构：
[1] Lvliang Teachers Coll, Lvliang 033000, Peoples R China
来源：
PRZEMYSL CHEMICZNY | 2023年 / 102卷 / 06期
关键词：
grapheNe; adsorbent; aerogel; magnetic particle; WASTE-WATER;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Graphene sponge (RGO) and graphene magnetic particles (MGO) were successfully prepd. and used for removal of Cu2+ ions from their aq. solns. The effects of pH value, adsorption time and adsorbent dose on the adsorption efficiency of Cu2+ on RGO and MGO were compared. At pH 5, the initial Cu2+ concn. 10 mg/L, and the adsorbent concn. 0.6 g/L, the adsorption was most efficient. The removal rate of Cu2+ by RGO (99.5%) was higher than that of MGO (94.1%), because of overlapping the graphene layers in MGO and an increase in ion diffusion resistance in the later stage. The graphene materials were recycled. After 6 cycles of adsorption, the removal rate was still 92%.
引用
收藏
页码：566 / 571
页数：6
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