Work

Investigation of thorium(IV) removal utilizing reduced graphene oxide-zinc oxide nanofibers via response surface methodology

Year: 2025

Type: article

Abstract: This study examines the removal of Th(IV) ions from aqueous solutions using reduced graphene oxide-zinc oxide (rGO-ZnO) nanofibers synthesized via electrospinning. The nanofibers were characterized using XRD, SEM, FTIR, XPS, and zeta potential measurements. Response surface methodology optimized adsorption parameters, including pH, temperature, Th(IV) concentration, and adsorbent dosage. The Freundlich isotherm indicated heterogeneous adsorption, and thermodynamic analysis revealed an endothermic process with enhanced efficiency at higher temperatures. The maximum adsorption capacity was 99.73 mg/g, demonstrating the high performance of rGO-ZnO nanofibers. Competitive adsorption studies demonstrated high selectivity for Th(IV), demonstrating the potential of rGO-ZnO nanofibers for radioactive wastewater treatment.

Source: Journal of Radioanalytical and Nuclear Chemistry

DOI: 10.1007/s10967-025-10095-1

Authors: Ikbal Gozde Kaptanoglu, Sabriye Yusan, Umit H. Kaynar, Sule Aytas, Sema Akyil Erenturk, Iro Dianellou

Institutions: Ege University, Bakırçay Üniversitesi, Istanbul Technical University, Aristotle University of Thessaloniki

Language: English

Topic: Radioactive element chemistry and processing

Subfield: Inorganic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $3,790