Photocatalytic reduction of CO2 with H2O to CH4 on Cu(i) supported TiO2 nanosheets with defective {001} facets

A series of Cu–TiO2-x has been reasonably designed and synthesized as efficient photocatalysts for the reduction of CO2 with H2O to CH4. It is found that the high activity may be contributed by the co-existence of surface oxygen vacancies and Cu(i) species on {001} facets of TiO2.

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Porous Copper/Zinc Bimetallic Oxides Derived from MOFs for Efficient Photocatalytic Reduction of CO2 to Methanol

Catalysts ◽

10.3390/catal10101127 ◽

2020 ◽

Vol 10 (10) ◽

pp. 1127

Author(s):

Zhenyu Wang ◽

Xiuling Jiao ◽

Dairong Chen ◽

Cheng Li ◽

Minghui Zhang

Keyword(s):

High Activity ◽

Oxide Catalyst ◽

Fast Rate ◽

Metal Organic Framework ◽

Photocatalytic Reduction ◽

Simple Preparation ◽

Porous Copper ◽

Metal Organic ◽

Copper Zinc ◽

Reduction Of Co2

A novel metal organic framework (MOF)-derived porous copper/zinc bimetallic oxide catalyst was developed for the photoreduction of CO2 to methanol at a very fast rate of 3.71 mmol gcat−1 h−1. This kind of photocatalyst with high activity, selectivity and a simple preparation catalyst provides promising photocatalyst candidates for reducing CO2 to methanol.

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Ni0.85Co0.15WO4 for Photocatalytic Reduction of CO2 Under Mild Conditions with High Activity and Selectivity

Catalysis Letters ◽

10.1007/s10562-020-03234-8 ◽

2020 ◽

Vol 150 (11) ◽

pp. 3071-3078

Author(s):

Chunmei Guo ◽

Biao Guo ◽

Xiaosu Gao ◽

Jing Liang ◽

Qide Meng ◽

...

Keyword(s):

High Activity ◽

Photocatalytic Reduction ◽

Mild Conditions ◽

Reduction Of Co2

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Enriched oxygen vacancies of Cu2O/SnS2/SnO2 heterostructure for enhanced photocatalytic reduction of CO2 by water and nitrogen fixation

Journal of Colloid and Interface Science ◽

10.1016/j.jcis.2020.10.056 ◽

2021 ◽

Vol 585 ◽

pp. 764-777

Author(s):

Niwesh Ojha ◽

Abhinav Bajpai ◽

Sushant Kumar

Keyword(s):

Nitrogen Fixation ◽

Oxygen Vacancies ◽

Photocatalytic Reduction ◽

Reduction Of Co2

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Selective photocatalytic reduction of CO2 to methanol in CuO-loaded NaTaO3 nanocubes in isopropanol

Beilstein Journal of Nanotechnology ◽

10.3762/bjnano.7.69 ◽

2016 ◽

Vol 7 ◽

pp. 776-783 ◽

Cited By ~ 17

Author(s):

Tianyu Xiang ◽

Feng Xin ◽

Jingshuai Chen ◽

Yuwen Wang ◽

Xiaohong Yin ◽

...

Keyword(s):

Reaction Mechanism ◽

High Activity ◽

Hydrothermal Method ◽

Oxidation Product ◽

Photocatalytic Reduction ◽

Band Theory ◽

Good Crystallinity ◽

Naoh Solution ◽

Reduction Of Co2 ◽

Selective Formation

A series of NaTaO3 photocatalysts were prepared with Ta2O5 and NaOH via a hydrothermal method. CuO was loaded onto the surface of NaTaO3 as a cocatalyst by successive impregnation and calcination. The obtained photocatalysts were characterized by XRD, SEM, UV–vis, EDS and XPS and used to photocatalytically reduce CO2 in isopropanol. This worked to both absorb CO2 and as a sacrificial reagent to harvest CO2 and donate electrons. Methanol and acetone were generated as the reduction product of CO2 and the oxidation product of isopropanol, respectively. NaTaO3 nanocubes loaded with 2 wt % CuO and synthesized in 2 mol/L NaOH solution showed the best activity. The methanol and acetone yields were 137.48 μmol/(g·h) and 335.93 μmol/(g·h), respectively, after 6 h of irradiation. Such high activity could be attributed to the good crystallinity, morphology and proper amount of CuO loading, which functioned as reductive sites for selective formation of methanol. The reaction mechanism was also proposed and explained by band theory.

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