Abstract

Excessive release of pollutants into the water because of urbanization and industrialization has posed a great problem worldwide. Among all contaminants, heavy metal ions and dyes have aroused serious public concern due to their high toxicity and chemical stability in water. The existence of these contaminants in water considerably decreases the quality of water and causes various diseases in humans. Thus great attention has been paid to remove them from wastewater. It has proved that starch and starch/carbonaceous nanocomposites can effectively eliminate heavy metal ions and dyes from polluted water. Starch/carbonaceous nanocomposites possess the advantages of carbonaceous nanofillers such as high surface area, stable structure, high selectivity, satisfactory mechanical and thermal stability, high strength, and manipulatable surface chemistry as well as the benefits of starch such as wide-availability, low cost, and renewability. These features made them ideal candidates for utilization in water purifications. Recent researches in the utilization of starch and starch/carbonaceous nanocomposites in the uptake of heavy metal ions and dyes are highlighted in this chapter.

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