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材料导报  2022, Vol. 36 Issue (4): 20110041-13    https://doi.org/10.11896/cldb.20110041
  无机非金属及其复合材料 |
GO/CS的结构、性能及其在水处理中的应用研究进展
姚庆达1,2, 梁永贤1,2, 王小卓1,2, 温会涛1,3, 周华龙1,3, 但卫华1,3,*
1 福建省皮革绿色设计与制造重点实验室,福建 晋江 362271
2 兴业皮革科技股份有限公司,福建 晋江 362261
3 四川大学制革清洁技术国家工程研究中心,成都 610065
Structure and Performance of Graphene Oxide/Chitosan Composite and Its Application in Water Treatment: a Review
YAO Qingda1,2, LIANG Yongxian1,2, WANG Xiaozhuo1,2, WEN Huitao1,3, ZHOU Hualong1,3, DAN Weihua1,3,*
1 Fujian Key Laboratory of Green Design and Manufacture of Leather, Jinjiang 362271, Fujian, China
2 Xingye Leather Technology Co., Ltd., Jinjiang 362261, Fujian, China
3 National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University ，Chengdu 610065，China
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摘要 随着现代工业的快速发展,因危险化学品泄漏和溢出造成的水污染已引起全球关注。含重金属、合成染料、芳香族有机物的废水将造成严重的环境、健康和安全问题。吸附法是最经济、快速、有效的水处理方法之一。传统吸附材料(如活性炭、高岭土、聚吡咯等)对某种类型的污染物表现出高去除能力,但对其他类型污染物的去除效率较低,且存在吸附量小、物理力学性能差、可回收性差等缺点,使吸附技术面临巨大的难题和挑战。
近年来,石墨烯的研究热潮推动了吸附材料的高速发展,石墨烯优越的性能使氧化石墨烯/壳聚糖(GO/CS)成为备受关注的研究热点之一。比表面积大、活性位点多的GO/CS在吸附性能方面展现出了巨大的潜力。与传统吸附材料不同的是,GO/CS物理力学性能和化学稳定性更高,并可通过结构设计(如石墨烯氧化程度的调整、氧化石墨烯和壳聚糖的改性、交联等)来改善其吸附效果。
石墨烯氧化程度的增加有助于提升氧化石墨烯与壳聚糖的相容性和其与被吸附物的静电作用、氢键作用,还原程度的增加则有利于提升π-π相互作用;氧化石墨烯、壳聚糖的改性可改变复合材料表面的电荷性质,有利于吸附性能的提升;交联则有利于提升氧化石墨烯与壳聚糖的相容性,并在一定程度上增强与目标分子或离子的相互作用。GO/CS的结构决定其稳定性,还原程度的增加和交联有助于降低GO/CS的溶胀性并提升其物理力学性能。
本文简要介绍了GO/CS的制备方法,探讨了结构控制与GO/CS吸附性能的关系,详细介绍了氧化石墨烯氧化程度的调整、氧化石墨烯和壳聚糖的改性、交联对吸附性能的影响,并对GO/CS的溶胀性和物理力学性能进行了分析,展望了其在水处理领域面临的机遇与挑战。
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姚庆达
梁永贤
王小卓
温会涛
周华龙
但卫华
关键词:  氧化石墨烯/壳聚糖  吸附  水处理  性能控制  稳定性    
Abstract: With the rapid development of modern industry, water pollution caused by leaks and spills of hazardous chemicals has aroused global environmental concern. Wastewater containing heavy metals, synthetic dyes, and aromatic organics will cause serious environment, health and safety problems. The adsorption method is one of the most economical, fast and effective water treatment methods. Traditional adsorbent materials such as activated carbon, kaolin, polypyrrole, etc., show high removal capacity for certain types of pollutant. However, there are some disadvantages such as low adsorption capacities, poor physical mechanical properties and less recoverability, which make adsorption technology facing enormous difficulties and challenges in the future.
In recent years, the research boom of graphene has promoted the rapid development of adsorption materials. The superior performance of graphene has made graphene oxide/chitosan composite (GO/CS) one of the research hotspots, and GO/CS with large specific surface area and many active sites has shown great potential in terms of adsorption performance. Compared with traditional adsorption materials, GO/CS has better physical mechanical properties and chemical stability, and the adsorption effect can be improved by structural design like controlling the degree of oxidation of graphene, and modification and cross-linking of graphene oxide and chitosan.
The increase in the degree of oxidation of graphene helps to improve the compatibility of graphene oxide with chitosan, as well as the electrostatic interaction and hydrogen bonding of it with the adsorbate. The increase in the degree of reduction is beneficial to enhance the π-π interaction; the modification of graphene oxide and chitosan can change the charge properties of the composite material surface, which is beneficial to the improvement of adsorption performance; cross-linking has a huge effect on improving the compatibility of graphene oxide and chitosan, to a certain extent, and enhances the interaction with target molecules or ions. Besides, the structure of GO/CS determines its stability, and the increase in the degree of reduction and cross-linking can help to reduce the swelling of GO/CS and improve the physical mechanical properties.
This article briefly introduces the preparation method of GO/CS, and discusses the relationship between structure control and GO/CS adsorption performance. The influence of adsorption performance was discussed in detail in the aspect of controlling the oxidation degree of graphene, and modification and cross-linking of graphene oxide and chitosan. Furthermore, the swelling and physical mechanical properties of GO/CS were analyzed, and the opportunities and challenges faced in the field of water treatment were prospected.
Key words:  graphene oxide/chitosan    adsorption    water treatment    performance control    stability
出版日期:  2022-02-25      发布日期:  2022-02-28
ZTFLH:  TQ424  
基金资助: 泉州市科技计划项目(2020C038R)
通讯作者:  dwh5607@263.net   
作者简介:  姚庆达,兴业皮革科技股份有限公司福建省皮革绿色设计与制造重点实验室,副主任。2015年毕业于东北大学,材料科学与工程专业。主要从事功能皮革、石墨烯基复合材料等方向的研究。
但卫华,四川大学制革清洁技术国家工程实验室研究员,兴业皮革科技股份有限公司福建省皮革绿色设计与制造重点实验室主任。主要从事制革清洁化生产、高性能皮革绿色设计与制造、胶原基生物材料等方向的研究。
引用本文:    
姚庆达, 梁永贤, 王小卓, 温会涛, 周华龙, 但卫华. GO/CS的结构、性能及其在水处理中的应用研究进展[J]. 材料导报, 2022, 36(4): 20110041-13.
YAO Qingda, LIANG Yongxian, WANG Xiaozhuo, WEN Huitao, ZHOU Hualong, DAN Weihua. Structure and Performance of Graphene Oxide/Chitosan Composite and Its Application in Water Treatment: a Review. Materials Reports, 2022, 36(4): 20110041-13.
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http://www.mater-rep.com/CN/10.11896/cldb.20110041  或          http://www.mater-rep.com/CN/Y2022/V36/I4/20110041
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