Plant mediated detoxification of mercury and lead

Brajesh Kumar, Kumari Smita, Luis Cumbal Flores
2017 Arabian Journal of Chemistry  
In recent years, the development of efficient green chemistry methods for detoxification of metal poisoning has become a major focus of researchers. They have investigated in order to find an eco-friendly and recyclable technique for the removal of heavy metal (Pb 2+ , Hg 2+ ) contamination from the natural resources. One of the most considered methods is the removal of Pb 2+ , Hg 2+ metal using green plants and their wastes. Among these plant wastes seem to be the best candidates and they are
more » ... uitable for detoxification of heavy metals. Biosorption by plants involve complex mechanisms, mainly ion exchange, chelation, adsorption by physical forces and ion entrapment in inter and intra fibrillar capillaries and spaces of the structural polysaccharide cell wall network. The advantages of using green plants and their wastes for detoxification of heavy metal have interested researchers to investigate mechanisms of metal ion uptake, and to understand the possible utilization. In this review, we discuss the role of plants and their wastes for minimizing mercury and lead pollution with their toxic effect on both human beings and plants. ª 2014 Production and hosting by Elsevier B.V. on behalf of King Saud University.
doi:10.1016/j.arabjc.2013.08.010 fatcat:3genxfw7d5fe7j7v3ubrwfzu6m