化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (2) : 99-102.

新材料与新技术

磁性氧化石墨烯的制备及其对Cu²⁺的吸附性能

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Preparation of magnetic GO and its adsorption performance on Cu²⁺

Zhao Yun, Ma Jiangquan, Zhang Chuandong, Li Zhengping, Huang Xiaoting, Luo Pengyang

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文章历史 +

Received
2016-10-31
Issue Date	Revised Date
2018-03-13	2016-10-31

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摘要

制备了一种磁性氧化石墨烯(GO-Fe₃O₄),并对其吸附铜离子(Cu²⁺)的性能进行了研究。研究了不同pH和初始浓度对GO-Fe₃O₄去除Cu²⁺的影响。研究结果表明:改性四氧化三铁(Fe₃O₄@SiO₂)成功被接枝在GO的边缘,GO与Fe₃O₄@SiO₂质量配合比为4∶1,制得的GO-Fe₃O₄,在303℃,pH为4.5,Cu²⁺初始质量浓度为124.5mg/L条件下,GO-Fe₃O₄对Cu²⁺的平衡吸附容量达到76.5mg/g。GO-Fe₃O₄在使用第7次时,对Cu²⁺吸附容量仍可达到55mg/g,具有良好的吸附性能。

Abstract

A magnetic GO (GO-Fe₃O₄) was synthesized,and studied its adsorption performance on Cu²⁺.Studying the adsorption capability of Cu²⁺ on GO-Fe₃O₄ under different pH values and initial Cu²⁺ concentrations.The results showed that,Fe₃O₄@SiO₂ was successfully grafted on the edge of GO.The equilibrium adsorption capacity of Cu²⁺ on GO-Fe₃O₄ produced by the mass ratio of GO to Fe₃O₄@SiO₂ 4∶1 was 76.5mg/g while the reaction temperature was 303℃,the pH value was 4.5 and the initial mass concentration of Cu²⁺ was 124.5mg/L.After seven time cycle the adsorption capacity of Cu²⁺ on GO-Fe₃O₄ can still reach 55mg/g,which displayed excellent absorption capacity.

关键词

氧化石墨烯 / 磁性吸附剂 / 铜离子

Key words

GO / magnetic adsorbent / Cu²⁺

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磁性氧化石墨烯的制备及其对Cu²⁺的吸附性能[J]. 化工新型材料, 2018, 46(2): 99-102 DOI:

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