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| 纳米纤维素去除水体系重金属离子的研究进展 | |
| 引用本文： | 覃发梅,邱学青,孙川,丁子先,方志强.纳米纤维素去除水体系重金属离子的研究进展[J].化工进展,2019,38(7):3390-3401. |
| 作者姓名： | 覃发梅 邱学青 孙川 丁子先 方志强 |
| 作者单位： | 华南理工大学化学与化工学院,广东广州510641;广东省绿色精细化学产品工程技术研究开发中心,广东广州510641;华南理工大学制浆造纸工程国家重点实验室,广东广州,510641 |
| 基金项目： | 国家自然科学青年科学基金(31700508);广东省自然科学基金-博士启动(2017A030310635);广东省科技计划(2017B090903003);广州市珠江科技新星专项(201806010141) |
| 摘 要： | 水体系重金属污染治理是目前全世界所面临的一个重大挑战。传统治理方法由于成本高、效率低等问题已不符合当今社会可持续发展战略。纳米纤维素凭借其来源丰富、可再生、化学反应活性高、比表面积大、密度低等优点，在水体系重金属离子去除领域有着光明的应用前景。然而，纳米纤维素吸附材料在水体系重金属去除领域还存在吸附量较低，吸附选择性、再生性、性能稳定性较差，制备成本较高等问题，这限制了其在水体系重金属离子去除领域的工业化应用。通过改性和结构设计不断提高纳米纤维素材料的吸附效率是行之有效的途径，本文从化学改性和结构设计两方面出发，系统地综述了纳米纤维素在水体系重金属离子去除领域的研究现状，并对其中存在的科学技术问题进行总结。最后，展望了纳米纤维素在水体系重金属离子去除领域的发展趋势。 |
| 关 键 词： | 重金属离子 纳米纤维素 吸附 化学改性 结构设计 |
| 收稿时间： | 2018-10-18 |
Research progress in nanocellulose for the removal of heavy metal ions in water |
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| Famei QIN,Xueqing QIU,Chuan SUN,Zixian DING,Zhiqiang FANG.Research progress in nanocellulose for the removal of heavy metal ions in water[J].Chemical Industry and Engineering Progress,2019,38(7):3390-3401. | |
| Authors: | Famei QIN Xueqing QIU Chuan SUN Zixian DING Zhiqiang FANG |
| Affiliation: | 1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China 2. Guangdong Engineering Research Center for Green Fine Chemicals, Guangzhou 510641, Guangdong, China 3. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China |
| Abstract: | Heavy metal pollution treatment in water is one of the great challenges all over the world. Traditional treatment methods cannot meet the growing requirements of the sustainable development of our society because of high treatment cost and low efficiency. Nanocellulose has advantages of earth abundance, excellent chemical reactivity, large specific surface area, and relatively low density, and demonstrates its foreseeable applications in the removal of heavy metal ions in water. However, removing metal ions in water by nanocellulose adsorbents remains a challenge due to its low adsorption capacity, poor selectivity, poor reproducibility, and performance instability, which restricts its commercial applications. One of the effective methods to enhance the adsorption efficiency is by modifying the surface properties of nanocellulose and/or designing the structure of nanocellulose absorbents. This review first covered the recent advances in nanocellulose for removing heavy metal ions in water in terms of chemical modifications and structural design of nanocellulose. Then, the scientific problems existing in this field were summarized in detail. Finally, the future development trend of nanocellulose in the field of heavy metal ions removal in water was envisioned. |
| Keywords: | heavy metal ion nanocellulose adsorption chemical modification structural design |
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