Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, 21111 Lakeshore, Sainte Anne de Bellevue, H9X 3V9, Quebec, Canada.
Department of Microbiology, St. Xavier's College (Autonomous), Kolkata, 30 Park St., Mullick Bazar, Park Street Area, West Bengal, 700016, Kolkata, India.
Environ Sci Pollut Res Int. 2023 Dec;30(60):124934-124949. doi: 10.1007/s11356-023-25431-9. Epub 2023 Jan 31.
The rapid growth in the population, industrial developments, and climate change over the century have contributed to a significant rise in aquatic pollution leading to a scarcity of clean, reliable, and sustainable water sources and supply. Exposure through ingestion, inhalation, and dermal absorption of organic/inorganic compounds such as heavy metals, pharmaceuticals, dyes, and persistent organic pollutants (POPs) discharged from municipalities, hospitals, textile industries, food, and agricultural sectors has caused adverse health outcomes in aquatic and terrestrial organisms. Owing to the high surface area, photocatalytic activity, antimicrobial, antifouling, optical, electronic, and magnetic properties, the application of nanotechnology offers unique opportunities in advanced wastewater management strategies over traditional approaches. Carbon nanomaterials and associated composites such as single-walled carbon nanotubes (SWCNT), multiwalled carbon nanotubes (MWCNT), and carbon nanotubes (CNT) buckypaper membranes have demonstrated efficiency in adsorption, photocatalytic activity, and filtration of contaminants and thus show immense potentiality in wastewater management. This review focuses on the application of CNTs in the sequestration of organic and inorganic contaminants from the aquatic environment. It also sheds light on the aquatic pollutant desorption processes, current safety regulations, and toxic responses associated with CNTs. Critical knowledge gaps involving CNT synthesis, surface modification processes, CNT-environment interactions, and risk assessments are further identified and discussed.
在过去的一个世纪里，人口的快速增长、工业的发展以及气候变化，导致了水环境污染的急剧增加，从而导致清洁、可靠和可持续的水源供应短缺。通过摄入、吸入和皮肤吸收从市政、医院、纺织业、食品和农业部门排放的有机/无机化合物，如重金属、药物、染料和持久性有机污染物（POPs），水生和陆地生物会产生不良健康后果。由于具有高表面积、光催化活性、抗菌、防污、光学、电子和磁性特性，纳米技术的应用为先进的废水管理策略提供了独特的机会，优于传统方法。碳纳米材料及其相关复合材料，如单壁碳纳米管（SWCNT）、多壁碳纳米管（MWCNT）和碳纳米管（CNT），在吸附、光催化活性和过滤污染物方面表现出了效率，因此在废水管理方面具有巨大的潜力。本综述重点介绍了 CNTs 在从水生环境中隔离有机和无机污染物方面的应用。它还介绍了有关 CNTs 的水生污染物解吸过程、当前的安全法规和毒性反应的情况。进一步确定并讨论了涉及 CNT 合成、表面改性过程、CNT-环境相互作用和风险评估的关键知识空白。
