Metal-free adsorption and photodegradation methods for methylene blue dye removal using different reduction grades of graphene oxide
Sanju Mahich, Yogesh Kumar Saini, Vijay Devra, Kanika Aggarwal, Anuj Kumar, Dinesh Kumar, Amanpal Singh, Yogendra Arya
Abstract
/g and a corresponding enhancement in pore volume from 0.118 to 0.128 cc/g after reduction. The adsorption and photocatalytic degradation behavior of pristine GO and reduced graphene oxides (rGOs) were examined using methylene blue dye. The pristine GO demonstrated impressive adsorption capability, effectively removing the dye by 85.78 % within just 15 min and achieving nearly 97 % removal after 4 h. In contrast, the highest photocatalytic degradation of methylene blue, about 47.58 %, was attained for the rGO sample reduced at 150 °C under the illumination of visible light.
Topics & Concepts
PhotodegradationMethylene blueGrapheneAdsorptionOxideMetalReduction (mathematics)Materials scienceChemistryInorganic chemistryChemical engineeringPhotocatalysisNuclear chemistryNanotechnologyOrganic chemistryCatalysisEngineeringMathematicsGeometryGraphene research and applicationsNanomaterials for catalytic reactionsGraphene and Nanomaterials Applications