Direct Z-scheme Sn-In2O3/In2S3 heterojunction nanostructures for enhanced photocatalytic CO2 reduction activity

2021 ◽  
Author(s):  
Yinyi Ma ◽  
Zemin Zhang ◽  
Xiao Jiang ◽  
Rongke Sun ◽  
Mingzheng Xie ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Environmental Pollution ◽  
Light Absorption ◽  
Co2 Reduction ◽  
Photocatalytic Reduction ◽  
Practical Significance ◽  
Energy Crisis ◽  
Low Light ◽  
Reduction Activity

Photocatalytic reduction of carbon dioxide into chemical fuels has great practical significance in solving energy crisis and environmental pollution, but remains a big challenge owing to its low light absorption...

Carbon nitride derivatives as photocatalysts for the CO2 reduction reaction: computational study

2021 ◽  
Vol 23 (5) ◽  
pp. 3401-3406
Author(s):  
Siru Li ◽  
Yu Tian ◽  
Likai Yan ◽  
Zhongmin Su
Keyword(s):  
Carbon Nitride ◽  
Computational Study ◽  
Co2 Reduction ◽  
Environmental Problems ◽  
Reduction Reaction ◽  
Photocatalytic Reduction ◽  
Energy Crisis ◽  
Promising Strategy ◽  
Co2 Reduction Reaction

Photocatalytic reduction of CO2 to hydrocarbons is considered to be a promising strategy to solve the energy crisis and environmental problems.

scholarly journals Photocatalytic CO2 reduction of C/ZnO nanofibers enhanced by an Ni-NiS cocatalyst

Nanoscale ◽  
2020 ◽  
Vol 12 (13) ◽  
pp. 7206-7213 ◽  
Author(s):  
Hongzhao Deng ◽  
Feiyan Xu ◽  
Bei Cheng ◽  
Jiaguo Yu ◽  
Wingkei Ho
Keyword(s):  
Light Absorption ◽  
Charge Separation ◽  
Effective Charge ◽  
Co2 Reduction ◽  
Reduction Activity ◽  
Zno Nanofibers

Photocatalyst Ni-NiS/C/ZnO shows improved photocatalytic CO2-reduction activity due to enhanced light absorption, good CO2 adsorption and effective charge separation.

Immobilization of catalytic sites on quantum dots by ligand bridging for photocatalytic CO2 reduction

Nanoscale ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 2507-2514 ◽  
Author(s):  
Yipeng Bao ◽  
Jin Wang ◽  
Qi Wang ◽  
Xiaofeng Cui ◽  
Ran Long ◽  
...  
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Quantum Dots ◽  
Solar Energy ◽  
Fossil Fuels ◽  
Co2 Reduction ◽  
Energy Crisis ◽  
Great Promise ◽  
Catalytic Sites ◽  
Global Problems

Harvesting solar energy to convert carbon dioxide (CO2) into fossil fuels shows great promise to solve the current global problems of energy crisis and climate change.

scholarly journals Microwave-Assisted Solvothermal Synthesis of Chalcogenide Composite Photocatalyst and Its Photocatalytic CO2 Reduction Activity under Simulated Solar Light

Catalysts ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 789
Author(s):  
Gang-Juan Lee ◽  
Yu-Hong Hou ◽  
Hsin-Ting Huang ◽  
Wenmin Wang ◽  
Cong Lyu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Photocatalytic Activity ◽  
Co2 Reduction ◽  
Carbon Dioxide Reduction ◽  
Photoluminescence Intensity ◽  
Composite Photocatalyst ◽  
Microwave Assisted ◽  
Reduction Activity ◽  
Operation Conditions ◽  
Co Doped

A novel heterostructure consisting of Ru and Cu co-doped ZnS nanopowders (RCZS) into a MoS2-graphene hybrid (MSG) is successfully prepared by the microwave-assisted solvothermal approach. RCZS nanopowders are fabricated on the surface of MSG, which produces a nanoscale interfacial between RCZS and MSG. As the photo-excited electrons of RCZS can easily migrate to MoS2 through graphene by hindering the electron and hole (e– and h+) recombination, the photocatalytic activity could be improved by effective charge transfer. As RCZS are anchored onto the MSG, the photoluminescence intensity of the chalcogenide composite photocatalyst obviously decreases. In addition, a quaternary ruthenium and copper-based chalcogenide RCZS/MSG is able to improve the harvest and utilization of light. With the increase in the concentrations of Ru until 4 mol%, the band gap significantly decreases from 3.52 to 2.73 eV. At the same time, moderate modification by ruthenium can decrease the PL intensity compared to the pristine CZS/MSG sample, which indicates the enhancement of e– and h+ separation by Ru addition. The photocatalytic activity of as-synthesized chalcogenide composite photocatalysts is evaluated by the photocatalytic carbon dioxide reduction. Optimized operation conditions for carbon dioxide reduction have been performed, including the concentration of NaOH solution, the amount of RCZS/MSG photocatalyst, and the content of co-doped ruthenium. The doping of ruthenium would efficiently improve the performance of the photocatalytic activity for carbon dioxide reduction. The optimal conditions, such as the concentration of 2 M NaOH and the 0.5RCZS/MSG dosage of 0.05 g L–1, provide the maximum methane gas yield of 58.6 μmol h−1 g–1.

A highly efficient diatomic nickel electrocatalyst for CO2 reduction

2020 ◽  
Vol 56 (62) ◽  
pp. 8798-8801 ◽  
Author(s):  
Meng-Jiao Sun ◽  
Zhi-Wei Gong ◽  
Jun-Dong Yi ◽  
Teng Zhang ◽  
Xiaodong Chen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Co2 Reduction ◽  
Carbon Dioxide Reduction ◽  
Carbon Composite ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Reduction Activity ◽  
Nitrogen Doped Carbon

Diatomic Ni2 clusters embedded in a nitrogen-doped carbon composite show high electrocatalytic carbon dioxide reduction activity.

Photocatalytic Reduction of Carbon Dioxide

2013 ◽  
Vol 764 ◽  
pp. 83-96 ◽  
Author(s):  
Rakshit Ameta ◽  
Shikha Panchal ◽  
Noopur Ameta ◽  
Suresh C. Ameta
Keyword(s):  
Carbon Dioxide ◽  
Global Warming ◽  
Single Molecule ◽  
Photocatalytic Reduction ◽  
Energy Crisis ◽  
Synthetic Fuels ◽  
Organic Fuels ◽  
Main Culprit ◽  
The Cost ◽  
Alternate Fuels

World is facing problems of global warming as well as energy crisis. Both these problems can be solved to a reasonable extent by photoreduction of carbon dioxide. Here, photocatalysis enters the scene. Photocatalytic reduction to synthetic organic fuels like formaldehyde, methanol, formic acid, acetic acid, methane, etc. will provide a solution to the problem of energy crisis as it will give us alternate fuels, which can be burnt into fuel cells to generate electricity. Once we get electricity at the cost of carbon dioxide, one can convert this form of energy to any other form of energy. Secondly, it will give a solution to put a check on the increasing amount of carbon dioxide, which is the main culprit of global warming. Any conventional fuel on burring will add some molecules of carbon dioxide in the atmosphere, but synthetic fuels derived by photocatalytic reduction of carbon dioxide will not add even a single molecule of carbon dioxide in the environment. It can be considered as a short term loan of carbon dioxide from the atmosphere as the carbon dioxide molecules utilized in the synthesis of alternate fuels are generated back on burning it in fuel cell.

Activity and selectivity regulation through varying the size of cobalt active sites in photocatalytic CO2 reduction

2018 ◽  
Vol 6 (42) ◽  
pp. 21110-21119 ◽  
Author(s):  
Qiaoqiao Mu ◽  
Wei Zhu ◽  
Gangbin Yan ◽  
Yuebin Lian ◽  
Yuanzhou Yao ◽  
...  
Keyword(s):  
Active Sites ◽  
Carbon Emission ◽  
Co2 Reduction ◽  
Photocatalytic Reduction ◽  
Energy Crisis ◽  
Global Energy

The development of efficient and economical catalysts for photocatalytic reduction of CO2 into chemical feedstocks is highly desirable for addressing both the global energy crisis and carbon emission problem.

scholarly journals Bio-inspired design: bulk iron–nickel sulfide allows for efficient solvent-dependent CO2 reduction

2019 ◽  
Vol 10 (4) ◽  
pp. 1075-1081 ◽  
Author(s):  
Stefan Piontek ◽  
Kai junge Puring ◽  
Daniel Siegmund ◽  
Mathias Smialkowski ◽  
Ilya Sinev ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Environmental Pollution ◽  
Nickel Sulfide ◽  
Sustainable Energy ◽  
Co2 Reduction ◽  
Electrocatalytic Reduction ◽  
Bulk Chemicals ◽  
Iron Nickel ◽  
Selective Storage ◽  
Vital Factor

The electrocatalytic reduction of carbon dioxide (CO2RR) to valuable bulk chemicals is set to become a vital factor in the prevention of environmental pollution and the selective storage of sustainable energy.

Metal-free azo-bridged porphyrin porous organic polymers for visible-light-driven CO2 reduction to CO with high selectivity

2020 ◽  
Vol 49 (22) ◽  
pp. 7592-7597
Author(s):  
Yuxia Hou ◽  
Enhui Zhang ◽  
Jiayin Gao ◽  
Shuaiqi Zhang ◽  
Ping Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
High Selectivity ◽  
Co2 Reduction ◽  
Photocatalytic Reduction ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Co Catalyst ◽  
Metal Free ◽  
Reduction Activity ◽  
Visible Light Driven

Two nitrogen-rich azo-bridged POP displaying high photocatalytic reduction activity for CO2 to CO without a sacrificial reagent or metal co-catalyst were prepared.

scholarly journals Photocatalytic Reduction of CO2 by Halide Perovskite: Recent Advances and Future Perspectives

2021 ◽  
Author(s):  
Ali Raza Muhammad ◽  
Feng Li ◽  
Meidan Que ◽  
Liangliang Zhu ◽  
Xi Chen
Keyword(s):  
Solar Energy ◽  
Co2 Reduction ◽  
Photocatalytic Reduction ◽  
Energy Crisis ◽  
Environmental Concerns ◽  
Future Perspectives ◽  
Global Energy ◽  
Recent Advances ◽  
Halide Perovskite ◽  
Reduction Of Co2

Photocatalytic CO2 reduction to generate energy-riching fuels through solar energy provides an attractive route to alleviate the global energy crisis and environmental concerns. Searching for various photocatalysts with high catalytic...

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