Functional Oxide Nanomaterials and Nanocomposites for the Removal of Heavy Metals and Dyes

Nanomaterials and Nanotechnology

K. C. Barick¹  Sarika Singh¹  D. Bahadur¹ 

关键词: Nanomaterials;    Oxides;    Nanocomposite;    Water-Purification;    Toxic Metal Ions;    Photocatalysis;   

DOI  :  10.5772/57237

来源: InTech

【 摘 要 】

Water scarcity and its contamination with toxic metal ions and organic dyes represent a serious worldwide problem in the 21st century. A wide range of conventional approaches have been used to remove these contaminants from waste. Recently, nanotechnology has been given great scope for the fabrication of desirable nanomaterials with large surface-to-volume ratios and unique surface functionalities to treat these pollutants. Amongst these, oxide-based nanomaterials emerge as promising new materials for water purification. In this review article, we explore a broad-spectrum overview of recent developments in the area of oxide-based nanomaterials, such as Fe3O4, ZnO and TiO2, as well as their binary and ternary nanocomposites, for the removal of various toxic metal ions and organic dyes. The possible adsorption mechanism and the surface modification of adsorbents for the removal of heavy metal ions and dyes are discussed in detail. The sorption properties of the different adsorbents depend on the surface fun...

【 授权许可】

Unknown