CuO Nanoparticle-Decorated TiO2‑Nanotube
Heterojunctions for Direct Synthesis of Methyl Formate via Photo-Oxidation of Methanol
Posted on 2020-06-24 - 00:13
Methyl
formate is widely employed as one of the important organic
intermediates in C1 chemistry and as an environmentally benign chemical
in the emerging area of “green chemistry”. We here study
the catalytic effectiveness of CuO/TiO2-nanotube nanocomposites
for the direct synthesis of methyl formate via methanol
photo-oxidation in this paper. The CuO/TiO2-nanotube nanocomposites
with 7% CuO weight loading give a promising photocatalytic performance
(over 93.3% methanol conversion and 89.4% methyl formate selectivity)
at 25 °C under 365 nm UV irradiation. The turnover frequency
and the apparent quantum efficiency reach up to 22.9 molmethanol gcat–1 h–1 and 57.6%
over 7% CuO/TiO2-nanotube, respectively, which is mainly
because of the effective minimization of the recombination of photogenerated
electrons and holes by the surface ultrasmall-sized CuO particles.
Furthermore, these CuO/TiO2-nanotube nanocomposites exhibit
excellent durability and robust nature during the catalytic processes
of the methanol photo-oxidation to methyl formate. The experimental
results demonstrate the promise of the robust CuO/TiO2 nanocomposites
for efficient and green production of methyl formate, which may offer
guidelines for the design of efficient catalysts for selective alcohol
conversion to other valuable chemicals.
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Zhang, Shuwei; Gong, Xia; Shi, Quanquan; Ping, Guichen; Xu, Hui; Waleed, Ammara; et al. (2020). CuO Nanoparticle-Decorated TiO2‑Nanotube
Heterojunctions for Direct Synthesis of Methyl Formate via Photo-Oxidation of Methanol. ACS Publications. Collection. https://doi.org/10.1021/acsomega.0c01169