Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa.
Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; DST/NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, Johannesburg 2050, South Africa; Centre for nanomaterial, University of Johannesburg, Doornfontein Campus. Johannesburg 2028, South Africa.
Carbohydr Polym. 2017 Mar 1;159:94-107. doi: 10.1016/j.carbpol.2016.12.027. Epub 2016 Dec 12.
Water is a worldwide vital resource for sustaining life and due to the pollution of water by different classes of pollutants (inorganic, organic and pathogens), many ongoing studies in water purification remain a critical issue to governments, scientists and industries. The challenge is to develop a water purification technology which will be effective at removing these contaminants simultaneously and reducing their concentrations to ultra low levels from waste water. This review article serves to give an overview on cyclodextrin nanosponge adsorbents which have already been used for water treatment. The modification of these cyclodextrin nanosponges with existing adsorbent nanomaterials (carbon nanotubes, TiO and silver nanoparticles) and the factors affecting the adsorption capacity of these nanosorbents are discussed. The nanotoxicity of these engineered nanosorbents material is also addressed since nanotoxicity is a major concern to human health and environment.
水是全球维持生命的重要资源，但由于不同类型的污染物（无机、有机和病原体）对水造成了污染，因此，许多正在进行的水净化研究仍然是政府、科学家和工业界的一个关键问题。挑战在于开发一种水净化技术，该技术能够有效地同时去除这些污染物，并将其浓度从废水中降低到超痕量水平。本文综述了已经用于水处理的环糊精纳米海绵吸附剂。讨论了这些环糊精纳米海绵与现有吸附剂纳米材料（碳纳米管、TiO 和银纳米颗粒）的改性，以及影响这些纳米吸附剂吸附能力的因素。这些工程纳米吸附剂材料的纳米毒性也得到了讨论，因为纳米毒性是人类健康和环境的主要关注点。
