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The direct activation of methane under mild condition to achieve highly selective of oxygenates is a challenging project. In this study, a well dispersed silver supported ZnTiO 3 catalyst was prepared to achieve selective preparation of methanol from methane and water under mild condition. X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy characterizations demonstrate that silver species are uniformly dispersed on ZnTiO 3 surface in the form of metallic silver nanoparticles. The photoelectric characterizations reveal that the addition of silver species enhances light absorption and promotes charge separation of the catalysts. Under the reaction conditions of 50 degrees C and 3 MPa, the methanol is obtained as the only liquid product over the designed Ag/ZnTiO 3 catalyst under light irradiation. In this photocatalytic process, the holes generated by ZnTiO 3 activate water to produce intermediate center dot OH, which further reacts with methane to synthesize methanol. The silver species as co -catalysts extend the light absorption range of ZnTiO 3 as well as promote charge separation. (c) 2024 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.
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JOURNAL OF RARE EARTHS
ISSN: 1002-0721
CN: 11-2788/TF
Year: 2024
Issue: 5
Volume: 42
Page: 899-906
5 . 2 0 0
JCR@2023
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 6
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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