Abstract

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Title:: Research Progresses and Trends in Materials for Adsorption of Heavy Metal Ions in Aqueous Phase

Author(s):: SHI Zhou; DENG Lin; College of Civil Engineering, Hunan University

Keywords:: Heavy metal; water pollution; adsorption material; research progress; development trend

Abstract:: The physicochemical characteristics and structural features of typical heavy metal ions adsorption materials including inorganic materials (carbons, minerals and metal oxides), organic macromolecular materials (cellulose, chitosan, agricultural and forestry waste, ion exchange resin), and composite materials (organic/organic type, inorganic/inorganic type, and organic/inorganic type) were systematically introduced. The adsorption capacity, adsorption mechanism and application progress of typical heavy metal ions in water were reviewed. The research status and development trend of novel heavy metal ion adsorption materials, such as nanomaterials, ion selective materials and biodegradable biomass materials were reviewed. The results show that the development of low price, high adsorption capacity, high selectivity, renewable and environmentally friendly adsorption materials are the important directions of heavy metal ion adsorption research. Combining with modern detection technology and analytical means to explore the nature of interaction between adsorbent and heavy metal ion in adsorption process has important theoretical and practical significance for extending the adsorption mechanism and developing the adsorption materials with good properties.