Geochemical and Physicochemical Characteristics of Clay Materials from Congo with Photocatalytic Activity on 4-Nitrophenol in Aqueous Solutions
Mukuna Patrick Mubiayi, Adolph Anga Muleja, Sarre Kadia Myra Nzaba, Bhekie B. Mamba
Abstract
) indicated that these natural clays can be used for photocatalytic oxidation of pollutants. The sample collected in Katuba (KAT) displayed the higher reflectance percentages for the selected wavelengths except at 200 nm. Interestingly, the GOL sample exhibited lower energy band gaps (2.68 and 3.94 eV) necessary for photocatalysis. The untreated GOL clay sample removed 99.13% of 4-nitrophenol from aqueous solution through the photodegradation process. The usage of the untreated GOL clay could be a cost-effective solution in the removal of 4-nitrophenol in wastewater.
Topics & Concepts
KaolinitePhotocatalysisAqueous solutionIllitePhotodegradationClay mineralsMineralogy4-NitrophenolMaterials scienceNuclear chemistryHematiteChemistryNanoparticleNanotechnologyCatalysisBiochemistryPhysical chemistryGeochemistry and Elemental Analysis