Catalytic Reduction of Anthropogenic Pollutants over gold (Au) Based Activated Charcoal

Abstract

Abstract Numerous industrial operations discharge contaminants created by humans onto rivers. When these toxins are present in water, they pose a major danger to human health and the health of other ecosystems. Significant progress has been achieved in reducing the quantity of hazardous substances entering our rivers. Through the application of catalytic hydrogenation procedures, it is feasible to remediate and lessen the hazards of both NP and MB in water. The hydrogenation reactions between the dye and the NP were investigated utilizing a variety of noble metal (Au, Pd) and noble metal (Pt) nanoparticle-based catalysts (NPCs). Recently, activated carbon-based catalysts have garnered considerable attention. Activated carbon is a substance that is mainly amorphous, very porous, and highly adsorbent. The majority of the molecule is composed of aromatic carbon atoms that are cross-linked. Modifications to the synthesis and post-treatment conditions may modify the textural qualities. However, in terms of gold (Au) and platinum (Pt) dispersion and size restrictions, AC has been categorized only as a palladium supporting material (Pd). This work used a homogenous deposition approach to fabricate Au/AC, a mesoporous activated carbon substrate (HDP). The synthesized material was analyzed using XRD and BET techniques, as well as SEM, TEM, TGA, FTIR, and XPS. The catalyst generated from the hydrogenation of PNP and MB was tested for its catalytic potential. In 13 minutes and 5 minutes respectively, PNP and MB was completely hydrogenated. During the use of the synthesized materials, the decontamination of two dangerous organic pollutants, P-Nitrophenol (P-NP) and methylene blue (MB) dye, will be examined. The purpose of this study was to determine the reusability of materials in real waste water treatment applications that required more than one cycle.