Hydroxyl-modified chitosan nanofiber beads for sustainable boron removal and environmental applications.

ABSTRACT: The removal of boron from wastewater is essential for protecting environmental health and supporting sustainable urbanization by preventing toxic accumulation in ecosystems. Existing adsorption technologies face challenges such as limited capacity, slow kinetics, high regeneration costs, and reduced efficiency due to adsorbent saturation. This study develops an eco-friendly adsorbent (CGCNF beads) by modifying chitosan nanofibers with d-(+)-glucono-1,5-lactone (GL) to enhance boron removal. The adsorbents were characterized by ¹H NMR, Cosy NMR, SEM, BET, TGA, FTIR, and colloidal titration. Notably, the hydroxyl functional groups grafted onto chitosan nanofibers (49.5%) were found to be three times higher than those on chitosan flakes (16.4%). The CGCNF beads followed the Langmui

SUBMITTER: Quyen HH 

PROVIDER: S-EPMC11878523 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature