摘要：

Numerous industrial operations discharge contaminants created by humans into 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 Nitrophenols (NP) and Methylene Blue (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. Recently, activated carbon-based catalysts have garnered considerable attention. Activated Carbon (AC) 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 crosslinked. Modifications to the synthesis and post-treatment conditions may modify the textural qualities. However, in terms of gold and platinum dispersion and size restrictions, Activated charcoal has been categorized only as a palladium supporting material. This work used a homogenous deposition approach to fabricate Au/AC, a mesoporous activated carbon substrate. The synthesized material was analyzed using FTIR and SEM analysis. The catalyst generated from the hydrogenation of P-Nitrophenol (PNP) and MB was tested for its catalytic potential for 5 to 13 minutes respectively. PNP and MB were completely hydrogenated. During the use of the synthesized materials, the decontamination of two dangerous organic pollutants, PNP and MB dye, were 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. Keywords Gold based activated charcoal; Organic pollutant; Catalytic degradation; Dye

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