Functionalizing natural polymers to develop green adsorbents for wastewater treatment applications

The present study provides an overview of scientific developments made in the last decade in the field of green adsorbents focusing on the modifications in natural polymers and their applications such as, wastewater treat-ment, and ion exchange. For this purpose, an introduction to the various methods of modifying natural polymers is first given, and then the properties, application, and future priorities of green adsorbents are also discussed. Methods of modification of natural polymers under homogeneous and heterogeneous conditions using modifiers with different properties are also described. Various methods for modifying natural polymers and the use of the obtained green adsorbents are reviewed. A comparison of the sorption properties of green adsorbents based on natural polymers and other adsorbents used in industry has also been carried out. With the participation of green adsorbents based on natural polymers, the properties of treated wastewaters having toxic metal ions, organic dyes, petroleum products, and other harmful compounds was analyzed. Future perspectives on green adsorbents based on natural polymers are as also highlighted.

Automated summary

This study provides a summary of the scientific developments in the field of green adsorbents in the past decade, with a focus on modifications of natural polymers and their applications in wastewater treatment and ion exchange. The study introduces various methods of modifying natural polymers and discusses the properties, applications, and future priorities of green adsorbents. The study also compares the sorption properties of green adsorbents based on natural polymers with other adsorbents used in industry, and analyzes the potential of green adsorbents in treating harmful compounds.