Weidner Ewelina, Ciesielczyk Filip
Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
Materials (Basel). 2019 Mar 20;12(6):927. doi: 10.3390/ma12060927.
Scientific development has increased the awareness of water pollutant forms and has reawakened the need for its effective purification. Oxyanions are created by a variety of redox-sensitive metals and metalloids. These species are harmful to living matter due to their toxicity, nondegradibility, and mobility in aquatic environments. Among a variety of water treatment techniques, adsorption is one of the simplest, cheapest, and most effective. Since metal-oxide-based adsorbents poses a variety of functional groups onto their surface, they were widely applied in ions sorption. In this paper adsorption of harmful oxyanions by metal oxide-based materials according to literature survey was studied. Characteristic of oxyanions originating from As, V, B, W and Mo, their probable adsorption mechanisms and comparison of their sorption affinity for metal-oxide-based materials such as iron oxides, aluminum oxides, titanium dioxide, manganium dioxide, and various oxide minerals and their combinations are presented in this paper.
科学发展提高了人们对水污染物形态的认识，并再次唤起了对其进行有效净化的需求。氧阴离子由多种对氧化还原敏感的金属和类金属产生。这些物质因其毒性、不可降解性以及在水生环境中的流动性而对生物有害。在各种水处理技术中，吸附是最简单、最便宜且最有效的技术之一。由于基于金属氧化物的吸附剂在其表面具有多种官能团，它们被广泛应用于离子吸附。本文根据文献调研研究了基于金属氧化物的材料对有害氧阴离子的吸附。本文介绍了源自砷、钒、硼、钨和钼的氧阴离子的特性、它们可能的吸附机制以及它们对基于金属氧化物的材料（如氧化铁、氧化铝、二氧化钛、二氧化锰以及各种氧化物矿物及其组合）的吸附亲和力比较。
