2014
DOI: 10.1021/cs500821r
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Partial Oxidation of Methane to Methanol Using Bismuth-Based Photocatalysts

Abstract: Bismuth-based photocatalysts, Bi 2 WO 6 , BiVO 4 , and coupled Bi 2 WO 6 /TiO 2 −P25, have been synthesized by a facile hydrothermal method, characterized, and evaluated for the first time for the selective photooxidation of methane to methanol. Several conditions were used in order to better comprehend the reaction mechanism. The obtained BiVO 4 is, among the others, the most promising photocatalyst for this reaction, displaying higher CH 3 OH selectivity and being more stable than the others. When Bi 2 WO 6 … Show more

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Cited by 137 publications
(142 citation statements)
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“…The values exceeded those (∼103 and ∼36 μmol/gcata., respectively) of WO 3 synthesized by a hydrothermal approach with a surface area (∼70 m 2 /g) similar to that of g‐CN, under the same reaction conditions by about three times, and also significantly outperformed the methanol production rate (18‐20 μmol/g cata. /h) reported on bismuth‐based photocatalysts at 55°C under the irradiation of an immersion medium‐pressure mercury lamp (450W, Ace Glass) with UVC‐visible radiation …”
Section: Resultsmentioning
confidence: 94%
See 1 more Smart Citation
“…The values exceeded those (∼103 and ∼36 μmol/gcata., respectively) of WO 3 synthesized by a hydrothermal approach with a surface area (∼70 m 2 /g) similar to that of g‐CN, under the same reaction conditions by about three times, and also significantly outperformed the methanol production rate (18‐20 μmol/g cata. /h) reported on bismuth‐based photocatalysts at 55°C under the irradiation of an immersion medium‐pressure mercury lamp (450W, Ace Glass) with UVC‐visible radiation …”
Section: Resultsmentioning
confidence: 94%
“…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 .…”
Section: Introductionmentioning
confidence: 95%
“…The XRD diffractogram of BV(F) microrobots included in the Supporting Information (Figure S1) evidences the formation of BiVO 4 with a monoclinic crystalline phase. This is considered one of the most photoactive phases for this semiconducting material in comparison with the tetragonal crystalline structure . No XRD diffraction peaks corresponding to Fe 3 O 4 NPs were detected due to their low concentration.…”
Section: Figurementioning
confidence: 99%
“…[172] MoO 3 auf SiO 2 (MoO 3 / SiO 2 )l ieferte unter UV-Bestrahlung bei 313 KM ethanol, wobei die Aktivitätd urch Versetzen mit Cu 2+ -Dotierstoffen weiter erhçht wurde. [174][175][176] Diese Erhçhung wird erklärt durch die verstärkte Bildung von COH-Radikalen auf den modifizierten Katalysatoren, die danach mit Methan reagieren, um die Entstehung von Methanol auszulçsen. [174][175][176] Diese Erhçhung wird erklärt durch die verstärkte Bildung von COH-Radikalen auf den modifizierten Katalysatoren, die danach mit Methan reagieren, um die Entstehung von Methanol auszulçsen.…”
Section: Angewandte Chemieunclassified