Work

Polyethyleneimine-Functionalized Magnetic Bagasse Composite for Efficient Adsorptive Removal of Yellow 4GL and Black R–S Dyes

Year: 2025

Type: article

Abstract: Efficient removal of dye contaminants from wastewater remains a significant environmental challenge. In this study, a polyethyleneimine (PEI)-modified magnetic bagasse composite was synthesized by integrating sugarcane bagasse, PEI, Fe₃O₄ nanoparticles, and glutaraldehyde as cross-linking. The synthesized material was comprehensively characterized using SEM, BET, XRD, TGA, and FTIR techniques to elucidate its structural and physicochemical properties. Adsorption experiments were performed to investigate the effects of adsorbent dosage, initial dye concentration, pH, and contact time on the removal efficiency of Yellow 4GL and Black R-S dyes. The PEI-magnetic bagasse composite (PMBC) demonstrated impressive adsorption capacities of 185.19 mg/g for Yellow 4GL and 204.08 mg/g for Black R-S. The adsorption kinetics conformed to the pseudo-second-order model, indicating that chemisorption dominated the process, driven by electrostatic interactions and hydrogen bonding between the amino groups of PEI and the sulfonate groups of the dyes.

Source: BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS

DOI: 10.9767/bcrec.20368

Authors: Thi Thuy Hong Vu, Thi Diem Bui, Le Huu Khanh Nguyen, Thi Hong Anh Nguyen

Institutions: Industrial University of Ho Chi Minh City, Ho Chi Minh City University of Industry and Trade

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: gold

Estimated APC paid: $150