scholarly journals Synergetic effect of dual co-catalysts on the activity of BiVO4 for photocatalytic carbamazepine degradation

RSC Advances ◽  
2019 ◽  
Vol 9 (71) ◽  
pp. 41977-41983 ◽  
Author(s):  
Beibei Wang ◽  
Ping Li ◽  
Chunlei Du ◽  
Yan Wang ◽  
Daxin Gao ◽  
...  
Keyword(s):  
Visible Light ◽  
Synergetic Effect ◽  
Co Catalysts ◽  
Visible Light Driven ◽  
Three Components

An efficient visible-light driven three components photocatalyst for carbamazepine (CBZ) degradation has been assembled by co-loading reduction cocatalyst Pt and oxidation cocatalyst Co3O4 (MnOx) on BiVO4. An obvious synergetic effect is observed.

All-in-one visible-light-driven water splitting by combining nanoparticulate and molecular co-catalysts on CdS nanorods

Nature Energy ◽  
2018 ◽  
Vol 3 (10) ◽  
pp. 862-869 ◽  
Author(s):  
Christian M. Wolff ◽  
Peter D. Frischmann ◽  
Marcus Schulze ◽  
Bernhard J. Bohn ◽  
Robin Wein ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Co Catalysts ◽  
Cds Nanorods ◽  
Visible Light Driven

Preparation of ZnFe2O4 nanostructures and highly efficient visible-light-driven hydrogen generation with the assistance of nanoheterostructures

2015 ◽  
Vol 3 (16) ◽  
pp. 8353-8360 ◽  
Author(s):  
Hui Song ◽  
Liping Zhu ◽  
Yaguang Li ◽  
Zirui Lou ◽  
Mu Xiao ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Hydrogen Generation ◽  
Light Irradiation ◽  
Generation Rate ◽  
Template Method ◽  
Co Catalysts ◽  
Highly Efficient ◽  
Visible Light Driven

ZnFe2O4/ZnO nanoheterostructures are synthesized by a facile template method. The hydrogen generation rate of ZnFe2O4/ZnO nanoheterostructures without co-catalysts is up to 2.15 mmol h−1 g−1 under visible light irradiation (λ > 420 nm), which is 45 times higher than the best yields ever reported for ZnFe2O4-based photocatalysts.

scholarly journals Hydrothermal Preparation of Visible-Light-Driven N-Br-CodopedTiO2Photocatalysts

2008 ◽  
Vol 2008 ◽  
pp. 1-7 ◽  
Author(s):  
Yonggang Sheng ◽  
Yao Xu ◽  
Dong Jiang ◽  
Liping Liang ◽  
Dong Wu ◽  
...  
Keyword(s):  
Visible Light ◽  
Photoelectron Spectroscopy ◽  
Synergetic Effect ◽  
Visible Region ◽  
Charge Compensation ◽  
Direct Reaction ◽  
Hydrothermal Preparation ◽  
Electron Hole ◽  
Visible Light Driven ◽  
Hole Recombination

Using a facile hydrothermal method, N-Br-codopedTiO2photocatalyst that had intense absorption in visible region was prepared at low temperature (100°C), through a direct reaction between nanocrystalline anataseTiO2solution and cetyltrimethylammonium bromide (CTAB). The results of X-ray photoelectron spectroscopy (XPS) showed the existence of N-Ti-N, O-Ti-N-R,Ti3+(attribute to the doped Br atoms by charge compensation), andTiOxNyspecies, indicating the successful codoping of N and Br atoms, which were substituted for lattice oxygen without any influence on the crystalline phase ofTiO2. In contrast to the N-doped sample, the N-Br-codopedTiO2photocatalyst could more readily photodegrade methylene blue (MB) under visible-light irradiation. The visible-light catalytic activity of thus-prepared photocatalyst resulted from the synergetic effect of the doped nitrogen and bromine, which not only gave high absorbance in the visible-light range, but also reduced electron-hole recombination rate.

Visible light driven photo-degradation of Congo red by TiO2ZnO/Ag: DFT approach on synergetic effect on band gap energy

Chemosphere ◽  
2018 ◽  
Vol 213 ◽  
pp. 481-497 ◽  
Author(s):  
Carlos Alberto Huerta-Aguilar ◽  
Viviana Palos-Barba ◽  
Pandiyan Thangarasu ◽  
Ranjit T. Koodali
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Congo Red ◽  
Synergetic Effect ◽  
Band Gap Energy ◽  
Photo Degradation ◽  
Gap Energy ◽  
Visible Light Driven

scholarly journals Visible light-driven simultaneous water oxidation and quinone reduction by a nano-structured conjugated polymer without co-catalysts

2020 ◽  
Vol 11 (28) ◽  
pp. 7324-7328
Author(s):  
Jully Patel ◽  
Xiaojiao Yuan ◽  
Stéphanie Mendes Marinho ◽  
Winfried Leibl ◽  
Hynd Remita ◽  
...  
Keyword(s):  
Visible Light ◽  
Conjugated Polymers ◽  
Water Oxidation ◽  
Conjugated Polymer ◽  
Co Catalysts ◽  
Quinone Reduction ◽  
Visible Light Driven ◽  
Light Excitation ◽  
Charge Recovery

Nanostructured conjugated polymers of diphenylbutadiyne (nano-PDPB) can perform photocatalytic water oxidation under visible light excitation. Charge recovery delayed in time was exemplified by the reduction of quinone acting as a hydrogen reservoir.

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>

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