Photochemical methane partial oxidation to methanol assisted by H2O2

The special route toward conversion of methane to methanol on a fluffy metal‐free carbon nitride photocatalyst in the presence of H 2 O 2

“…When a simulated AM1.5G sunlight irradiation was applied, a 12‐fold enhancement of methanol production could be observed in the system without any catalysts. It was because that the photolysis of H 2 O 2 to form ·OH took place under the excitation of the UV light within the simulated sunlight . The methanol evolution under the simulated sunlight was further enhanced by twice when g‐CN was dispersed in the solution, validating the catalytic role of g‐CN for this reaction.…”

“…It has shown intriguing performance for a series of photocatalytic reactions including hydrogen production from water, environmental remediation, and carbon dioxide (CO 2 ) reduction . However, unlike the effective semiconductor catalysts previously reported for photocatalytic CH 4 conversion, the band structure of g‐CN does not possess sufficient oxidizing potential for the generation of hydroxyl radical (·OH) from water, which was regarded indispensable for the activation of CH 4 . Recently, photocatalytic CH 4 conversion on polymeric carbon nitride (PCN) embedded with copper species (Cu/PCN) has been reported to exhibit extraordinary selectivity toward ethanol .…”

Methane Hydroxylation with Water as an Electron Donor under Light Irradiation in the Presence of Reconstituted Membranes Containing both Photosystem II and a Methane Monooxygenase

“…Methane monooxygenases from methanotrophs are enzymes that catalyzem ethane/methanol conversion under mild conditions. [4][5][6][7] In nature,m ethanotrophs-bacteria capable of using methane as their sole carbon source-can be employed as biological catalysts for methane hydroxylation. Photoinduced hydroxylation of methane to methanol was successfully achieved by using the PSII-reconstituted membrane containing pMMO under light irradiation.…”

“…Methane is also ar enewable form of energy because it can be recycled from carbon dioxide, the full oxidation product of methane, through several enzymaticr eactions. [4][5][6][7] In nature,m ethanotrophs-bacteria capable of using methane as their sole carbon source-can be employed as biological catalysts for methane hydroxylation. Liquefaction of natural gas accounts for about half of its total cost, with shipping and regasification each accounting for2 5% of the overall cost.…”

“…A) Dependence of propene epoxidationi nt he presence of PSII-pMMO membrane on the light intensity(5,10,15,20, 60, 100 mEm À2 s À1 ; data points are mean AE standard deviations of two independent experiments. B) Dependence of initial velocity of propene epoxidation in the presence of PSII-pMMOm embrane on the light intensity.ChemBioChem 2018ChemBioChem , 19,2152ChemBioChem -2155 www.chembiochem.org2018 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim 2154…”