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Highly ordered mesoporous silica film nanocomposites containing gold nanoparticles for the catalytic reduction of 4-nitrophenol

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dc.FundingDetails123.51/D2.3/KP/2018 Hitachi The Ministry of Economic Affairs and Employment,�MEAE Universiti Teknologi Malaysia 012/MACHUNG/LPPM/SP2H-LIT-MULTI/III/2019
dc.FundingDetailsThe authors acknowledge the World Class Research (WCR) Grant 2019 with contract number 012/MACHUNG/LPPM/SP2H-LIT-MULTI/III/2019 awarded through the Directorate General of Strengthening Research and Development, Ministry of Research, Technology and Higher Education, The Republic of Indonesia for the financial support. This work was partially supported by the same ministry by the Directorate General of Science and Technology Resources and Higher Education, under the World Class Professor (WCP) Program 2018, Scheme B, with a contract number 123.51/D2.3/KP/2018 for fine-tuning publications. The authors also thank the Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research (ISI-SIR), Universiti Teknologi Malaysia (UTM), Malaysia, for the use of facilities. We particularly acknowledge Hi-Tech Instruments, Sdn. Bhd., and especially Mr. Tok Hong Yuan for the visualization of our nanocomposites using 3D tomography with the Hitachi HT7700 TEM.
dc.contributor.affiliationsPERMATA Insan College
dc.contributor.affiliationsUniversiti Sains Islam Malaysia (USIM)
dc.contributor.affiliationsUniversiti Teknologi Malaysia (UTM)
dc.contributor.affiliationsUniversitas Ma Chung
dc.contributor.authorJalani M.A.en_US
dc.contributor.authorYuliati L.en_US
dc.contributor.authorLee S.L.en_US
dc.contributor.authorLintang H.O.en_US
dc.date.accessioned2024-05-28T08:35:01Z
dc.date.available2024-05-28T08:35:01Z
dc.date.issued2019
dc.description.abstractWe report that transparent mesostructured silica/gold nanocomposite materials with an interpore distance of 4.1 nm, as-synthesized from a templated sol-gel synthesis method using discotic trinuclear gold(I) pyrazolate complex, were successfully utilized for the fabrication of thin film mesoporous silica nanocomposites containing gold nanoparticles. The material exhibited a highly ordered hexagonal structure when subjected to a thermal hydrogen reduction treatment at 210 °C. In contrast, when the material was subjected to calcination as a heat treatment from 190 to 450 °C, the thin film nanocomposites showed an intense d100 X-ray diffraction peak. Moreover, gold nanoparticles inside the thin film nanocomposites were confirmed by the presence of the d111 diffraction peak at 2θ = 38.2°, a surface plasmon resonance peak between 500-580 nm, and the spherical shape observed in the transmission electron microscope images, as well as the visual change in color from pink to purple. Interestingly, by simply dipping the material into a reaction solution of 4-nitrophenol at room temperature, the highly ordered structure of the as-fabricated silica/gold nanoparticle thin film composite after thermal hydrogen reduction at 210 °C resulted in an improved catalytic activity for the reduction of 4-nitrophenol to 4-aminophenol compared to the material calcined at 250 °C. Such catalytic activity is due to the presence of gold nanoparticles of smaller size in the silicate channels of the highly ordered mesoporous film nanocomposites.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.3762/bjnano.10.135
dc.identifier.epage1379
dc.identifier.issn21904286
dc.identifier.scopus2-s2.0-85072881386
dc.identifier.spage1368
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85072881386&doi=10.3762%2fbjnano.10.135&partnerID=40&md5=887b6f904ff1feda5c642652bccda417
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/9110
dc.identifier.volume10
dc.languageEnglish
dc.language.isoen_USen_US
dc.publisherBeilstein-Institut Zur Forderung der Chemischen Wissenschaftenen_US
dc.relation.ispartofOpen Accessen_US
dc.sourceScopus
dc.sourcetitleBeilstein Journal of Nanotechnology
dc.subjectMesoporous silicaen_US
dc.subjectThermal hydrogen reductionen_US
dc.subject4-Nitrophenol reductionsen_US
dc.titleHighly ordered mesoporous silica film nanocomposites containing gold nanoparticles for the catalytic reduction of 4-nitrophenolen_US
dc.title.alternativeBeilstein J. Nanotechnologyen_US
dc.typeArticleen_US
dspace.entity.typePublication

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