| 초록 |
Recently, with the emergence of problems related to micro-plastics and environmental pollution, interest in environmental remediation materials using eco-friendly bio-polymers has increased. Lignin and cellulose, collectively called "lignocellulose", is the most abundant polymers in nature. Since they have a functional group containing a hydroxyl group in a monomer unit, they have advantages in chemical modification or polymer processing. In this study, various types of multi-dimensional adsorption materials using lignocellulose were prepared. Eco-friendly nanocellulose-based beads and hydrogels using top-down and bottom-up methods and lignin-based microbeads using reverse-phase polymerization will be introduced. In addition, we introduce the chemical modification method of lignocellulosic adsorbents using polyethylene imine (PEI) and understand their hexavalent chromium (Cr (VI)) remediation behavior and its mechanism. |
