Asymmetric zinc porphyrin-sensitized nanosized TiO2 for efficient visible-light-driven CO2 photoreduction to CO/CH4

2015 ◽  
Vol 51 (62) ◽  
pp. 12443-12446 ◽  
Author(s):  
Kan Li ◽  
Li Lin ◽  
Tianyou Peng ◽  
Yingying Guo ◽  
Renjie Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Gas Phase ◽  
Co2 Photoreduction ◽  
Zinc Porphyrin ◽  
Visible Light Driven ◽  
Nanosized Tio2

Asymmetric zinc porphyrin was used as a novel sensitizer for the visible-light-driven activity of CO2 photoreduction to CO/CH4 in the gas phase.

scholarly journals Water-Stable Boron-Doped Boron Nitride Photocatalyst for Visible Light-Driven H2 Evolution and CO2 Photoreduction

2020 ◽  
Author(s):  
Ravi Shankar ◽  
Daphne Lubert-Perquel ◽  
Elan Mistry ◽  
Irena Nevjestić ◽  
Sandrine Heutz ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Visible Light ◽  
Gas Phase ◽  
Hyperfine Interactions ◽  
Quantum Yields ◽  
H2 Evolution ◽  
Co2 Photoreduction ◽  
Boron Doped ◽  
Out Of Plane ◽  
Visible Light Driven

<p>Developing robust, multifunctional photocatalysts that can facilitate both hydrogen evolution via photoreforming of water and gas phase CO2 photoreduction is highly desirable with the long-term vision of integrated photocatalytic setups. Here, we present a new addition to the boron nitride (BN) photocatalyst material platform, boron-doped boron oxynitride (B-BNO), capable of fulfilling this goal. Detailed EPR studies revealed hyperfine interactions between free charges located on discrete OB3 sites, exhibiting an out-of-plane symmetry, and the nuclei of neighbouring boron atoms. This material resolves two long-standing bottlenecks associated to BN-based materials concomitantly: instability in water and lack of photo activity under visible light. We show that B-BNO maintains prolonged stability in water for at least three straight days and can facilitate both liquid phase H2 evolution and gas phase CO2 photoreduction, using UV-Vis and deep visible irradiation (λ > 550 nm), without any cocatalysts. The evolution rates, apparent quantum yields, and selectivities observed for both reactions with B-BNO exceed those of its porous BNO counterpart, P25 TiO2 and bulk g-C3N4. This work provides scope to expand the BN photocatalyst platform to a wider range of reactions.</p>

Photocatalytic oxidation of gas-phase Hg0 by carbon spheres supported visible-light-driven CuO–TiO2

2017 ◽  
Vol 46 ◽  
pp. 416-425 ◽  
Author(s):  
Jiang Wu ◽  
Chaoen Li ◽  
Xiantuo Chen ◽  
Jing Zhang ◽  
Lili Zhao ◽  
...  
Keyword(s):  
Visible Light ◽  
Gas Phase ◽  
Photocatalytic Oxidation ◽  
Carbon Spheres ◽  
Visible Light Driven

Adsorption-enhanced nitrogen-doped mesoporous CeO2 as an efficient visible-light-driven catalyst for CO2 photoreduction

2020 ◽  
Vol 39 ◽  
pp. 101176 ◽  
Author(s):  
Zhangfeng Shen ◽  
Qineng Xia ◽  
Yaguang Li ◽  
Chaochuang Yin ◽  
Zhigang Ge ◽  
...  
Keyword(s):  
Visible Light ◽  
Co2 Photoreduction ◽  
Nitrogen Doped ◽  
Visible Light Driven ◽  
Mesoporous Ceo2

Visible-light-driven CO2 photoreduction over ZnxCd1−xS solid solution coupling with tetra(4-carboxyphenyl)porphyrin iron(iii) chloride

2018 ◽  
Vol 20 (25) ◽  
pp. 16985-16991 ◽  
Author(s):  
Pan Li ◽  
Xuehua Zhang ◽  
Chunchao Hou ◽  
Lin Lin ◽  
Yong Chen ◽  
...  
Keyword(s):  
Solid Solution ◽  
Visible Light ◽  
Sustainable Energy ◽  
Solar Fuels ◽  
Photocatalytic Reduction ◽  
Co2 Photoreduction ◽  
Visible Light Driven

Photocatalytic reduction of CO2 into solar fuels is a promising approach to supply sustainable energy and efficiently use CO2 as a resource.

Visible-light-driven hydrogen production from water in a noble-metal-free system catalyzed by zinc porphyrin sensitized MoS 2 /ZnO

2015 ◽  
Vol 123 ◽  
pp. 285-292 ◽  
Author(s):  
Yong-Jun Yuan ◽  
Ji-Ren Tu ◽  
Zhi-Jun Ye ◽  
Hong-Wei Lu ◽  
Zhen-Guo Ji ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Noble Metal ◽  
Free System ◽  
Zinc Porphyrin ◽  
Metal Free ◽  
Visible Light Driven

Visible light driven reduction of CO 2 catalyzed by an abundant manganese catalyst with zinc porphyrin photosensitizer

2016 ◽  
Vol 522 ◽  
pp. 145-151 ◽  
Author(s):  
Jun-Xiao Zhang ◽  
Chang-Ying Hu ◽  
Wei Wang ◽  
Hui Wang ◽  
Zhao-Yong Bian
Keyword(s):  
Visible Light ◽  
Zinc Porphyrin ◽  
Visible Light Driven

Boron-Doped Boron Nitride Photocatalyst for Visible Light-Driven H2 Evolution and CO2 Photoreduction

2020 ◽  
Author(s):  
Ravi Shankar ◽  
Daphne Lubert-Perquel ◽  
Elan Mistry ◽  
Irena Nevjestić ◽  
Sandrine Heutz ◽  
...  
Keyword(s):  
Visible Light ◽  
Gas Phase ◽  
Hyperfine Interactions ◽  
Free Oxygen Radicals ◽  
Co Catalysts ◽  
Boron Doped ◽  
The Family ◽  
Visible Light Driven ◽  
Band Gap Narrowing

<p>Developing robust, multifunctional photocatalysts that can facilitate both hydrogen evolution <i>via</i> photoreforming of water and gas phase CO<sub>2</sub> photoreduction is highly desirable with the long-term vision of integrated photocatalytic setups. Here, we present a step-change in the family of boron oxynitride materials by introducing the first example of a B-doped boron oxynitride (B-BNO). This material resolves an on-going bottleneck associated with BN-based materials, i.e. the lack of photoactivity under visible light. Detailed EPR studies revealed distinct hyperfine interactions between the free oxygen radicals and 3 neighbouring boron nuclei. This confirmed isolated OB<sub>3 </sub>sites, which contribute to band gap narrowing, as the radical species and origin of paramagnetism in BNO materials. We show that B-BNO can facilitate both liquid phase H<sub>2 </sub>evolution and gas phase CO<sub>2</sub> photoreduction, using UV-Vis and deep visible irradiation (λ > 550 nm), without any co-catalysts. The evolution rates, quantum efficiencies, and selectivities observed for both reactions with B-BNO exceed those of its porous BNO counterpart, P25 TiO<sub>2</sub> and bulk g-C<sub>3</sub>N<sub>4</sub>.</p>

Immobilizing CsPbBr3 perovskite nanocrystals on nanoporous carbon powder for visible-light-driven CO2 photoreduction

2021 ◽  
Author(s):  
Ying Jiang ◽  
Cunxin Mei ◽  
Zhijie Zhang ◽  
Zhongliang Dong
Keyword(s):  
Visible Light ◽  
Conversion Efficiency ◽  
Nanoporous Carbon ◽  
Photocatalytic Reduction ◽  
Carbon Powder ◽  
Co2 Conversion ◽  
Co2 Photoreduction ◽  
Perovskite Nanocrystals ◽  
Visible Light Driven ◽  
Reduction Of Co2

Perovskite CsPbBr3 nanocrystals (NCs) have emerged as promising candidates for photocatalytic reduction of CO2. However, the CO2 conversion efficiency by pristine CsPbBr3 is still unsatisfactory, mainly due to severe radiative...

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