Highly efficient and stable photocatalytic reduction of CO2 to CH4 over Ru loaded NaTaO3

2015 ◽  
Vol 51 (36) ◽  
pp. 7645-7648 ◽  
Author(s):  
Mu Li ◽  
Peng Li ◽  
Kun Chang ◽  
Tao Wang ◽  
Lequan Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Electron Donor ◽  
Water Oxidation ◽  
Reduction Process ◽  
Photocatalytic Reduction ◽  
Highly Efficient ◽  
Main Effect ◽  
Reduction Of Co2

An efficient and stable photocatalytic activity was obtained over NaTaO3 by introducing electron donor (H2) into the CO2 reduction process with water and loaded Ru as cocatalysts. The main effect of the electron donor was found to release the peroxide intermediates of the half reaction for water oxidation.

An Unprecedented Polyoxometalate-Encapsulated Organo-Metallophosphate Framework as Highly Efficient Cocatalyst for CO2 Photoreduction

2022 ◽  
Author(s):  
Zeyu Du ◽  
Yingnan Xue ◽  
Xiaomei Liu ◽  
Ningfang Li ◽  
Jilei Wang ◽  
...  
Keyword(s):  
Greenhouse Effect ◽  
Photocatalytic Reduction ◽  
Energy Crisis ◽  
Co2 Photoreduction ◽  
Design And Synthesis ◽  
Highly Efficient ◽  
Reduction Of Co2

The photocatalytic reduction of CO2 to chemical fuels is attractive for addressing both greenhouse effect and energy crisis, but the key challenge is the design and synthesis of photocatalyst with...

Positive effect of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) on homogeneous photocatalytic reduction of CO2

2018 ◽  
Vol 54 (27) ◽  
pp. 3323-3326 ◽  
Author(s):  
Markus Pschenitza ◽  
Simon Meister ◽  
Bernhard Rieger
Keyword(s):  
Electron Donor ◽  
Catalytic Performance ◽  
Photocatalytic Reduction ◽  
Reduction Of Co2 ◽  
P Addition ◽  
Positive Effect

Addition of DBU enables reducing the amount of sacrificial electron donor and increases catalytic performance in photocatalytic CO2 reduction.

scholarly journals Photoreduction of Carbon Dioxide to Methanol over Copper Based Zeolitic Imidazolate Framework-8: A New Generation Photocatalyst

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 581 ◽  
Author(s):  
Sonam Goyal ◽  
Maizatul Shaharun ◽  
Chong Kait ◽  
Bawadi Abdullah ◽  
Mariam Ameen
Keyword(s):  
Photocatalytic Activity ◽  
Photoelectron Spectroscopy ◽  
Ammonium Hydroxide ◽  
Photocatalytic Reduction ◽  
Zeolitic Imidazolate Framework ◽  
X Ray ◽  
Efficient Reduction ◽  
Vis Spectroscopy ◽  
Metal Organic ◽  
Reduction Of Co2

The efficient reduction of CO2 into valuable products such as methanol, over metal-organic frameworks (MOFs) based catalyst, has received much attention. The photocatalytic reduction is considered the most economical method due to the utilization of solar energy. In this study, Copper (II)/Zeolitic Imidazolate Framework-8 (Cu/ZIF-8) catalysts were synthesized via a hydrothermal method for photocatalytic reduction of CO2 to methanol. The synthesized catalysts were characterized by X-ray Photoelectron Spectroscopy (XPS), Field Emission Scanning Electron Microscopy (FESEM) coupled with Energy Dispersive X-ray (EDX), Ultraviolet-visible (UV-vis) spectroscopy, and X-Ray Diffraction (XRD). The host ZIF-8, treated with 2 mmol copper prepared in 2M ammonium hydroxide solution showed the highest photocatalytic activity. The crystal structures of ZIF-8 and 2Cu/ZIF-8N2 catalysts were observed as cubic and orthorhombic, respectively and the XPS analysis confirmed the deposition of Cu (II) ions over ZIF-8 surface among all the prepared catalysts. The orthorhombic structure, nano-sized crystals, morphology and Cu loading of the 2Cu/ZIF-8N2 catalyst were the core factors to influence the photocatalytic activity. The yield of Methanol was found to be 35.82 µmol/L·g after 6 h of irradiations on 2Cu/ZIF-8N2 catalyst in the wavelength range between 530–580 nm. The copper-based ZIF-8 catalyst has proven as an alternative approach for the economical photocatalytic reduction of CO2 to CH3OH.

Construction of highly efficient Z-scheme ZnxCd1-xS/Au@g-C3N4 ternary heterojunction composite for visible-light-driven photocatalytic reduction of CO2 to solar fuel

2021 ◽  
Vol 282 ◽  
pp. 119600
Author(s):  
Puttaswamy Madhusudan ◽  
Run Shi ◽  
Shengling Xiang ◽  
Mengtian Jin ◽  
Bananakere Nanjegowda Chandrashekar ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Reduction ◽  
Solar Fuel ◽  
Highly Efficient ◽  
Visible Light Driven ◽  
Reduction Of Co2

scholarly journals In-situ preparation of MOFs/SiC/PVA-Co-PE nanofiber membranes for efficient photocatalytic reduction of CO2

2021 ◽  
Vol 252 ◽  
pp. 02056
Author(s):  
Xianwei Fan ◽  
Ran Zhao ◽  
Haoxuan Hu ◽  
Junyi Liu ◽  
Yahui Nie ◽  
...  
Keyword(s):  
Visible Light ◽  
Reduction Process ◽  
Reduction Reaction ◽  
Photocatalytic Reduction ◽  
Nanofiber Membrane ◽  
Characterization Methods ◽  
In Situ Preparation ◽  
Light Region ◽  
Composite Nanofiber ◽  
Reduction Of Co2

In this paper, we prepared a polyvinyl alcohol-polyethylene (PVA-Co-PE) composite nanofiber membrane catalyst decorated by Fe-MOFs/SiC and completed the photocatalytic reduction of CO2 performance. The results show that the CO2 conversion rate of composite film materials under visible light irradiation is increased by 31 times compared with powdered Fe-MOFs/SiC materials. Through SEM, XRD, BET, FTIR, DRS and other characterization methods, the influencing factors of the photocatalytic CO2 reduction process of the composite nanofiber membrane were investigated. The synergistic effect of Fe-MOFs/SiC and nanofiber membrane photocatalysis is beneficial to electron-hole pairs. The effective separation and strong absorption in the visible light region make it exhibit excellent photocatalytic activity in the photocatalytic CO2 reduction reaction.

Highly efficient photocatalytic reduction of CO2 on surface-modified Ti-MCM-41 zeolite

2019 ◽  
Vol 335 ◽  
pp. 221-227 ◽  
Author(s):  
Wenhui Jia ◽  
Taifeng Liu ◽  
Qiuye Li ◽  
Jianjun Yang
Keyword(s):  
Photocatalytic Reduction ◽  
Highly Efficient ◽  
Reduction Of Co2 ◽  
Surface Modified ◽  
Mcm 41

Highly efficient photocatalytic reduction of CO2 to CO using cobalt oxide-coated spherical mesoporous silica particles as catalysts

2019 ◽  
Vol 55 (77) ◽  
pp. 11523-11526 ◽  
Author(s):  
Zi-Cheng Fu ◽  
Joshua T. Moore ◽  
Fei Liang ◽  
Wen-Fu Fu
Keyword(s):  
Photocatalytic Activity ◽  
Mesoporous Silica ◽  
Cobalt Oxide ◽  
Silica Particles ◽  
Photocatalytic Reduction ◽  
Oxide Nanoparticles ◽  
Cobalt Oxide Nanoparticles ◽  
Hybrid Catalysts ◽  
Co Conversion ◽  
Reduction Of Co2

Hybrid catalysts that cobalt oxide nanoparticles immobilized on outside surfaces of spherical SBA-15 presented unexpected photocatalytic activity towards CO2-to-CO conversion.

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