Elimination of synthetic dyes by clamshell derived photo-active hydroxyapatite
Document Type
Article
Publication Date
9-1-2024
Abstract
Herein, a novel designed hydroxyapatite (HAp) derived from freshly calcined clamshell waste through the wet precipitation method was synthesized. HAp has been developed as a heterogeneous photocatalyst for the anionic dye methyl orange (MO) degradation. The pH on synthesizing HAp was varied in basic conditions. The results show HAp formed at pH more than 10. The MO photodegradation was done under UV-light irradiation for 120 min. HAp catalyst showed the optimum MO degradation efficiency using rod-like structure HAp synthesized at pH 12. HAp with optimum photodegradation efficiency was optimized for the catalyst loading and the pH of the MO solution. MO at pH 6 with 0.05 g catalyst loading showed the highest degradation efficiency around 97 % using HAp prepared at pH 12 with band gap at 4.990 eV. This finding brings a new insight on natural sources materials as photo-active in sustainable of persistent water pollutants.
Keywords
Photocatalyst, Dye removal, Clamshell waste, Wastewater treatment
Divisions
CHEMISTRY,nanocat
Funders
Fundamental Research Grant Scheme, Ministry of Higher Education Malaysia (FRGS/1/2022/STG05/UM/02/7),University Malaya Matching Grant (MG019-2022)
Publication Title
Journal of Physics and Chemistry of Solids
Volume
192
Publisher
Elsevier
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND