Natural biopolymers, polymeric organic molecules produced by living organisms and/or
renewable resources, are considered greener, sustainable, and eco-friendly materials …

With the development of modern industry, heavy metal pollution is one of the most important
environmental issues. Due to its simplicity and low-cost, adsorption is considered as a green …

Over the past few decades, polymers have been extensively employed in various sectors
attributed to their exceptional properties. The presence of vast quantities of non-degradable …

Biopolymers have become very attractive as they are degradable, biocompatible, non-toxic
and renewable. Due to the intrinsic reactive amino groups, chitosan is vibrant in the midst of …

Critical raw materials (CRMs) are essential in the development of novel high-tech
applications. They are essential in sustainable materials and green technologies, including …

Magnetic chitosan composites (MCCs) are a novel material that exhibits good sorption
behavior toward various toxic pollutants in aqueous solution. These magnetic composites …

This review summarizes the progress made, in the field of low-cost biosorption of heavy
metal ions, over the past few years. It gives a comprehensive summary of the synthesis …

The demand for rare earth elements (REEs) has significantly increased due to their
indispensable uses in integrated circuits of modern technology. However, due to the …

This paper presents an overview of the various methodologies used in the recovery of gold
from secondary sources. Gold recovery is interesting due to its vast industrial applications …

Recovery of precious metals like gold, silver, palladium platinum etc. is interesting due to its
high market prices along with various industrial applications. Conventional technologies viz …