Abstract
In this chapter, in order to improve the selectivity of methanol in photocatalytic oxidation of methane with molecular oxygen, TiO2 loaded with different amounts of Pt, Pd, Au and Ag nanoparticles were investigated. It was found that the loading amount of cocatalysts played an important role for the production of methanol; both the yield and selectivity of methanol increased gradually with increasing the loading amount. In addition, reducing the concentration of •OH radicals generated in the reaction solution via the formation of electron-deficient state of Auδ+ on the surface of TiO2 could inhibit the over-oxidation of methanol to formaldehyde and carbon dioxide. The activity for production of the primary productson the optimized photocatalysts amounts to 2845 µmol g−1 h−1, with approximately 73% selectivity.
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Song, H. (2020). Selective Photocatalytic Oxidation of Methane to Methanol with Molecular Oxygen over Nanometals/TiO2 Catalysts. In: Solar-Energy-Mediated Methane Conversion Over Nanometal and Semiconductor Catalysts. Springer Theses. Springer, Singapore. https://doi.org/10.1007/978-981-33-4157-9_6
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DOI: https://doi.org/10.1007/978-981-33-4157-9_6
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