State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, China; International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China.
International Innovation Center for Forest Chemicals and Materials and Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, China.
Environ Pollut. 2023 Oct 15;335:122351. doi: 10.1016/j.envpol.2023.122351. Epub 2023 Aug 9.
The issue of mercury pollution in environmental remediation has garnered significant attention due to its severe health hazards to humans. Various strategies have been devised to mitigate the impact of toxic mercury ions, including coagulation, ion exchange, adsorption, membrane technology, and electrochemical treatment. Among these approaches, adsorption has emerged as an efficient and widely employed method for the uptake of low concentrations of mercury ions. It offers convenient operation, high removal efficiency, and facile regeneration of the adsorbent. Wood, being the most abundant renewable and sustainable bioresource, has garnered attention as a promising material for treating heavy metal wastewater. This is attributed to its unique physical and chemical characteristics, encompassing hierarchical pores, aligned channels, active functional groups, biodegradability, and cost-effectiveness. However, a comprehensive examination of the cutting-edge applications of wood and wood-derived biopolymers in the detection and removal of mercury ions from wastewater has yet to be undertaken. Consequently, this article presents a chronological overview of recent advancements in materials and structures derived from bulk wood and its constituents, including cellulose, lignin, hemicellulose, and tannin, with a specific focus on their utility in detecting and eliminating mercury from water sources. Subsequently, the most promising techniques and strategies involving wood and wood-derived biopolymers in addressing the predicament of mercury pollution are explored. Furthermore, this piece offers insights into the existing challenges and future prospects concerning environmentally friendly materials derived from wood, aiming to foster the development of cost-effective mercury adsorbents and detection devices.
由于汞污染对人类健康的严重危害，环境修复中的汞污染问题引起了人们的高度关注。已经设计了各种策略来减轻有毒汞离子的影响，包括混凝、离子交换、吸附、膜技术和电化学处理。在这些方法中，吸附作为一种有效且广泛应用的方法，用于吸收低浓度的汞离子。它具有操作方便、去除效率高、吸附剂易于再生等优点。木材作为最丰富的可再生和可持续生物资源，因其独特的物理和化学特性，包括分层孔、定向通道、活性官能团、可生物降解性和成本效益，而备受关注。然而，对于木材和木材衍生的生物聚合物在检测和去除废水中汞离子的最新应用的全面研究尚未进行。因此，本文按时间顺序综述了近年来从块状木材及其组成部分（包括纤维素、木质素、半纤维素和单宁）衍生的材料和结构的最新进展，特别关注它们在检测和去除水中汞方面的应用。随后，探讨了涉及木材和木材衍生生物聚合物的最有前途的技术和策略，以解决汞污染问题。此外，本文还深入探讨了木材基环保材料所面临的挑战和未来前景，旨在促进具有成本效益的汞吸附剂和检测设备的开发。
