纳米纤维素:用于修复水中重金属离子的可持续功能结构

IF 3.6 4区 材料科学 Q2 MATERIALS SCIENCE, COMPOSITES Journal of Thermoplastic Composite Materials Pub Date : 2024-05-02 DOI:10.1177/08927057241249731
Jishana Basheer, Arya Uthaman, Hiran M Lal, Sabu Thomas, Deepu A Gopakumar, Jinu J George
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引用次数: 0

摘要

重金属被认为是水体中的重要污染物,通过食物链对人类健康产生不利影响,导致各种严重疾病。由于使用不可生物降解的材料,环境问题日益严重,因此有必要使用生态友好型材料。如今,纳米纤维素的丰富性和环保性使其有望成为不可持续材料的替代品。此外,还可以找到原料中的化学成分(纤维素、半纤维素和木质素)以及纤维素的产量。在这种情况下,纳米纤维素因其比表面积大、重量轻、成本低、生物相容性好等特点,成为吸附有毒重金属离子的理想候选材料,在纳米材料中备受关注。此外,其表面存在的大量羟基使其适合与不同的基团进行广泛的表面功能化。因此,它们可以单独使用,也可以与其他材料结合使用,对各种有毒重金属离子具有极佳的吸附作用。本综述主要讨论了改性纳米纤维素作为重金属吸附剂的研究现状。本综述主要详细讨论了两种植物基纳米纤维素:纤维素纳米纤维(CNFs)和纤维素纳米晶体(CNCs)。此外,还介绍了通过绿色方法提取纳米纤维素。本综述全面详细地介绍了纳米纤维素的改性及其他相关特性,这些特性有助于吸附有毒重金属。
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Nanocellulose: A sustainable functional construct for the remediation of heavy metal ions from water
Heavy metals are considered to be a significant pollutant in water bodies, adversely affecting human health by causing various severe diseases after passing down the food chain. The rise in environmental problems due to the usage of non – biodegradable materials leads to the necessity of eco–friendly materials. The abundant and eco-friendly nature of the nanocellulose makes them promising substitutes for non-sustainable materials, nowadays. It is also possible to find the chemical components (cellulose, hemicellulose, and lignin) present in a source and the cellulose yield. In this context, nanocellulose has gained considerable attention among nanomaterials as a promising candidate for the adsorption of toxic heavy metal ions because of its large surface area, light weight, low cost, biocompatible nature, etc. Moreover, the numerous surface hydroxyl groups present in its surface make them suitable for the wide range of surface functionalization with different groups. They can thus be used individually or in combination with other materials for excellent adsorption towards various toxic heavy metal ions. The state of research on modified nanocellulose as an adsorbent for heavy metals is principally discussed in this review. Mainly two types of plant-based nanocelluloses; cellulose nanofibers (CNFs) and cellulose nanocrystals (CNCs), are discussed in detail in this review. The extraction of nanocellulose via a green approach was also covered. This review comprises comprehensive details on the modifications and other relevant properties of nanocellulose which would facilitate the adsorption of toxic heavy metals.
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来源期刊
Journal of Thermoplastic Composite Materials
Journal of Thermoplastic Composite Materials 工程技术-材料科学:复合
CiteScore
8.00
自引率
18.20%
发文量
104
审稿时长
5.9 months
期刊介绍: The Journal of Thermoplastic Composite Materials is a fully peer-reviewed international journal that publishes original research and review articles on polymers, nanocomposites, and particulate-, discontinuous-, and continuous-fiber-reinforced materials in the areas of processing, materials science, mechanics, durability, design, non destructive evaluation and manufacturing science. This journal is a member of the Committee on Publication Ethics (COPE).
期刊最新文献
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