Work

Urea/acrylamide-assisted nitrogen-functionalized rice husk biochar for Cd( ii ) removal: adsorption performance and interaction insights

Year: 2026

Type: article

Abstract: desorbing 92.7% of adsorbed Cd(ii), and maintained 80.7% Cd(ii) removal from synthetic multimetal wastewater. The adsorption process is proposed to proceed through cooperative contributions from pH-regulated electrostatic attraction, interactions with polar surface functionalities and mineral-associated sites, and diffusion through accessible mesoporous domains. These results position UA-NARB as a rice-husk-derived sorbent with practical potential for Cd(ii)-contaminated wastewater treatment.

Source: RSC Advances

DOI: 10.1039/d6ra08271h

Authors: Adel A. El-Zahhar, Majed M. Alghamdi

Institution: King Khalid University

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: gold

Estimated APC paid: $1,042