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.

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...

Perovskite-based nanocubes with simultaneously improved visible-light absorption and charge separation enabling efficient photocatalytic CO2 reduction

Nano Energy ◽  
2016 ◽  
Vol 30 ◽  
pp. 59-68 ◽  
Author(s):  
Jungang Hou ◽  
Shuyan Cao ◽  
Yunzhen Wu ◽  
Fei Liang ◽  
Lu Ye ◽  
...  
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Charge Separation ◽  
Co2 Reduction ◽  
Visible Light Absorption

Hydrogenated nanotubes/nanowires assembled from TiO2 nanoflakes with exposed {111} facets: excellent photo-catalytic CO2 reduction activity and charge separation mechanism between (111) and (1̄1̄1̄) polar surfaces

2019 ◽  
Vol 7 (24) ◽  
pp. 14761-14775 ◽  
Author(s):  
Junfang Liu ◽  
Bin Liu ◽  
Yan Ren ◽  
Yukun Yuan ◽  
Hua Zhao ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Charge Separation ◽  
Co2 Reduction ◽  
Separation Mechanism ◽  
Apparent Quantum Yield ◽  
Reduction Activity ◽  
Polar Surfaces

The apparent quantum yield for CH4 evolution of the hydrogenated TiO2 nanotubes/nanowires is as high as 17.4%, which is higher than that of all the TiO2 based photocatalysts reported until now.

scholarly journals Synergistic effect of Ni–Ag–rutile TiO2 ternary nanocomposite for efficient visible-light-driven photocatalytic activity

RSC Advances ◽  
2020 ◽  
Vol 10 (60) ◽  
pp. 36930-36940 ◽  
Author(s):  
Petri M. Leukkunen ◽  
Ekta Rani ◽  
Assa Aravindh Sasikala Devi ◽  
Harishchandra Singh ◽  
Graham King ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Synergistic Effect ◽  
Visible Light ◽  
Light Absorption ◽  
Charge Separation ◽  
Effective Charge ◽  
Energy Dispersive ◽  
Intimate Contact ◽  
Visible Light Absorption ◽  
Visible Light Driven

Robust photocatalytic activity of Ni–Ag–RTiO2 is attributed to the improved visible light absorption and effective charge separation due to intimate contact between Ni and RTiO2via Ag, as evidenced by Ti3+ in Ti 2p XPS and energy dispersive mapping.

Optical resonance and charge transfer behavior of patterned WO3 microdisc arrays

2016 ◽  
Vol 9 (10) ◽  
pp. 3143-3150 ◽  
Author(s):  
Hye Won Jeong ◽  
Weon-Sik Chae ◽  
Bokyung Song ◽  
Chang-Hee Cho ◽  
Seong-Ho Baek ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Light Absorption ◽  
Charge Separation ◽  
Effective Charge ◽  
Optical Resonance ◽  
Transfer Behavior

Patterned WO3 microdisc arrays exhibit excellent photoelectrochemical performances, owing to enhanced light absorption and effective charge separation.

An effective strategy of constructing a multi-junction structure by integrating a heterojunction and a homojunction to promote the charge separation and transfer efficiency of WO3

2020 ◽  
Vol 8 (13) ◽  
pp. 6256-6267 ◽  
Author(s):  
Yanting Li ◽  
Zhifeng Liu ◽  
Junwei Li ◽  
Mengnan Ruan ◽  
Zhengang Guo
Keyword(s):  
Light Absorption ◽  
Charge Separation ◽  
Effective Charge ◽  
Transfer Efficiency ◽  
Effective Strategy ◽  
Junction Structure

Constructing a multi-junction structure by integrating homojunction and heterojunction is an effective strategy for adequate light absorption, effective charge separation and transfer of WO3 photoanodes.

scholarly journals Carbon Dioxide Photoreduction on the Bi2S3/MoS2 Catalyst

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 998 ◽  
Author(s):  
Kim ◽  
Kim ◽  
Do ◽  
Seo ◽  
Kang
Keyword(s):  
Carbon Dioxide ◽  
Light Absorption ◽  
Charge Separation ◽  
Effective Charge ◽  
Active Sites ◽  
Electron Excitation ◽  
Photocurrent Density ◽  
Catalytic Performance ◽  
Inorganic Materials ◽  
Composite Catalyst

The photocatalytic activity of a material is contingent on efficient light absorption, fast electron excitation, and control of the recombination rate by effective charge separation. Inorganic materials manufactured in unique shapes via controlled synthesis can exhibit significantly improved properties. Here, n-type Bi2S3 nanorods (with good optical activity) were wrapped with two-dimensional (2D) p-type MoS2 sheets, which have good light absorption properties. The designed p-n junction Bi2S3/MoS2 composite exhibited enhanced light absorption over the entire wavelength range, and higher carbon dioxide adsorption capacity and photocurrent density compared to the single catalysts. Consequently, the activity of the 1Bi2S3/1MoS2 composite catalyst for the photocatalytic reduction of carbon dioxide was more than 20 times higher than that of the single catalysts under visible-light irradiation at ≤400 nm, with partial selectivity for CO conversion. This is attributed to the p-n heterojunction Bi2S3/MoS2 composite designed in this study, the high light absorption of n-Bi2S3, accelerated electron excitation, and the electron affinity of the 2D sheet-p-MoS2, which quickly absorbed excited electrons, resulting in effective charge separation. This ultimately improved the catalytic performance by continuously supplying catalytically active sites to the heterojunction interfaces.

Effective charge separation in rGO/NiWO4@Au photocatalyst for efficient CO2 reduction under visible light

2020 ◽  
Vol 81 ◽  
pp. 427-439 ◽  
Author(s):  
Jongmin Shin ◽  
Jun Neoung Heo ◽  
Jeong Yeon Do ◽  
Young-Il Kim ◽  
Seog Joon Yoon ◽  
...  
Keyword(s):  
Visible Light ◽  
Charge Separation ◽  
Effective Charge ◽  
Co2 Reduction

Efficient spatial charge separation in unique 2D tandem heterojunction CdxZn1−xIn2S4–CdS–MoS2 rendering highly-promoted visible-light-induced H2 generation

2021 ◽  
Vol 9 (1) ◽  
pp. 482-491
Author(s):  
Jiakun Wu ◽  
Bowen Sun ◽  
Hui Wang ◽  
Yanyan Li ◽  
Ying Zuo ◽  
...  
Keyword(s):  
Visible Light ◽  
Charge Separation ◽  
Effective Charge ◽  
Active Sites ◽  
H2 Generation ◽  
Highly Efficient ◽  
Spatial Charge

Unique 2D heterostructures CdxZn1−xIn2S4–CdS–MoS2 with effective charge separation, excellent light-harvest, and abundant active sites are highly-efficient for photocatalytic H2 evolution.

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