Enhancement in the photocatalytic activity of carbon nitride through hybridization with light-sensitive AgCl for carbon dioxide reduction to methane

2016 ◽  
Vol 6 (3) ◽  
pp. 744-754 ◽  
Author(s):  
Lutfi Kurnianditia Putri ◽  
Wee-Jun Ong ◽  
Wei Sea Chang ◽  
Siang-Piao Chai
Keyword(s):  
Carbon Dioxide ◽  
Photocatalytic Activity ◽  
Band Structure ◽  
Carbon Nitride ◽  
Carbon Dioxide Reduction ◽  
Structure Alignment ◽  
Hybrid Nanostructure ◽  
Reduction Mechanism

Schematic illustration of the photocatalytic CO2 reduction mechanism on the Ag/AgCl/CN hybrid nanostructure and their respective band structure alignment.

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.

Engineering Graphitic Carbon Nitride (g-C3N4) for Catalytic Reduction of CO2 to Fuels and Chemicals: Strategy and Mechanism

2021 ◽  
Author(s):  
Qingqing Lu ◽  
Kamel Eid ◽  
Wenpeng Li ◽  
Aboubakr M Abdullah ◽  
Guobao Xu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Nitride ◽  
Catalytic Reduction ◽  
Environmental Issues ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Fuels And Chemicals ◽  
Reduction Of Co2

Carbon dioxide reduction reaction (CO2RR) to useful fuels/chemicals such as methane, formic, and methanol, is an innovative way to address looming energy and environmental issues. Graphitic carbon nitride (g-C3N4), as...

scholarly journals Cover Feature: Boosting the Photocatalytic Activity of P25 for Carbon Dioxide Reduction by using a Surface-Alkalinized Titanium Carbide MXene as Cocatalyst (ChemSusChem 10/2018)

ChemSusChem ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1577-1577
Author(s):  
Minheng Ye ◽  
Xin Wang ◽  
Enzuo Liu ◽  
Jinhua Ye ◽  
Defa Wang
Keyword(s):  
Carbon Dioxide ◽  
Photocatalytic Activity ◽  
Titanium Carbide ◽  
Carbon Dioxide Reduction

Photocatalytic Carbon Dioxide Reduction: Exploring the Role of Ultrathin 2D Graphitic Carbon Nitride (g-C3N4)

2021 ◽  
pp. 131402
Author(s):  
Maansi Aggarwal ◽  
Soumen Basu ◽  
Nagaraj P. Shetti ◽  
Mallikarjuna N. Nadagouda ◽  
Eilhann E. Kwon ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Nitride ◽  
Carbon Dioxide Reduction ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride

Coordination polymers with a pyridyl–salen ligand for photocatalytic carbon dioxide reduction

2020 ◽  
Vol 56 (29) ◽  
pp. 4110-4113 ◽  
Author(s):  
Yi Liu ◽  
Jin-Han Guo ◽  
Xiao-Yao Dao ◽  
Xiu-Du Zhang ◽  
Yue Zhao ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Coordination Polymers ◽  
Visible Light Irradiation ◽  
Carbon Dioxide Reduction ◽  
Light Irradiation ◽  
Salen Ligand

Fe(iii) and Mn(iii) coordination polymers with a pyridyl–salen ligand were constructed and have shown photocatalytic activity for CO2 reduction under visible-light irradiation.

Visible-light-active oxygen-rich TiO2 decorated 2D graphene oxide with enhanced photocatalytic activity toward carbon dioxide reduction

2015 ◽  
Vol 179 ◽  
pp. 160-170 ◽  
Author(s):  
Lling-Lling Tan ◽  
Wee-Jun Ong ◽  
Siang-Piao Chai ◽  
Boon Tong Goh ◽  
Abdul Rahman Mohamed
Keyword(s):  
Carbon Dioxide ◽  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Visible Light ◽  
Carbon Dioxide Reduction ◽  
Active Oxygen ◽  
Visible Light Active

Excited-State Dynamics of Graphitic Carbon Nitride Photocatalyst and Ultrafast Electron Injection to a Ru(II) Mononuclear Complex for Carbon Dioxide Reduction

2018 ◽  
Vol 122 (29) ◽  
pp. 16795-16802 ◽  
Author(s):  
Ryo Kuriki ◽  
Chandana Sampath Kumara Ranasinghe ◽  
Yasuomi Yamazaki ◽  
Akira Yamakata ◽  
Osamu Ishitani ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Excited State ◽  
Carbon Nitride ◽  
Electron Injection ◽  
Carbon Dioxide Reduction ◽  
Mononuclear Complex ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Excited State Dynamics

scholarly journals A Review of Recent Progress on Photocatalytic Carbon dioxide Reduction into Sustainable Energy Products using Carbon Nitride

2021 ◽  
Author(s):  
Rekha Pachaiappan ◽  
Saravanan Rajendran ◽  
P. Senthil Kumar ◽  
Dai-Viet N. Vo ◽  
Tuan K.A. Hoang
Keyword(s):  
Carbon Dioxide ◽  
Carbon Nitride ◽  
Recent Progress ◽  
Sustainable Energy ◽  
Carbon Dioxide Reduction ◽  
Energy Products

scholarly journals Carbon dioxide reduction mechanism on Ru-based electrocatalysts [Ru(bpy)2(CO)2]2+: insights from first-principles theory

2021 ◽  
Author(s):  
Giane B. Damas ◽  
Dmytro A. Ivashchenko ◽  
Ivan Rivalta ◽  
C. Moyses Araujo
Keyword(s):  
Carbon Dioxide ◽  
First Principles ◽  
New World ◽  
Artificial Photosynthesis ◽  
Environmentally Friendly ◽  
Carbon Dioxide Reduction ◽  
Reduction Mechanism ◽  
Energy Matrix ◽  
Fuel Production ◽  
World Energy

Solar fuel production through the so-called artificial photosynthesis has attracted a great deal of attention to the development of a new world energy matrix that is renewable and environmentally friendly.

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