An Environmentally Friendly Approach for the Synthesis of Au Nanoparticles Supported Mesoporous Silica for Catalytic Applications

d1edc48d-dc13-47b0-81e9-be5e41aa8dc420220602085726275wseas:wseasmdt@crossref.orgMDT DepositMOLECULAR SCIENCES AND APPLICATIONS2732-99922944-913810.37394/232023https://wseas.com/journals/msa/index.php32220223222022210.37394/232023.2022.2https://wseas.com/journals/msa/2022.phpAn Environmentally Friendly Approach for the Synthesis of Au Nanoparticles Supported Mesoporous Silica for Catalytic ApplicationsAndrésGuzmán-CruzInstituto de Física Benemérita Universidad Autónoma de Puebla Apdo. Postal J-48, Puebla 72570 MEXICOF.Paraguay-DelgadoDepartamento de Materiales Nanoestructurados Centro de Investigación en Materiales Avanzados (CIMAV) Av. Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua 31136 MEXICOMouPalInstituto de Física Benemérita Universidad Autónoma de Puebla Apdo. Postal J-48, Puebla 72570 MEXICOMesoporous silica has received much attention as an attractive support material for metal nanoparticles (NPs) with good dispersion and exceptional stability for various catalytic reactions. However, the lack of synthetic protocols to controlled synthesis of mesoporous silica with high surface area and ideal pore size for supporting metal NPs significantly reduces the catalytic performance and stability of the catalysts. This work reports a facile synthetic route to prepare mesoporous silica-supported Au NPs (Au/SiO2) for efficient catalytic reduction of 4-nitrophenol. An environmentally friendly synthetic route was exploited to prepare mesoporous silica using deep eutectic solvent (DES) derived from choline chloride/urea as an efficient solvent and template in solvothermal reaction. The mesoporous silica was first functionalized with –NH2 groups, and subsequently, Au NPs with an average size of 10 nm were deposited onto the mesoporous silica matrix. 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