scholarly journals Visible-light-driven CO2 reduction on a hybrid photocatalyst consisting of a Ru(ii) binuclear complex and a Ag-loaded TaON in aqueous solutions

2016 ◽  
Vol 7 (7) ◽  
pp. 4364-4371 ◽  
Author(s):  
Akinobu Nakada ◽  
Takuya Nakashima ◽  
Keita Sekizawa ◽  
Kazuhiko Maeda ◽  
Osamu Ishitani
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Binuclear Complex ◽  
Co2 Reduction ◽  
Light Irradiation ◽  
Photocatalytic System ◽  
Visible Light Driven ◽  
Hybrid Photocatalyst

A hybrid photocatalytic system consisting of a Ru(ii) binuclear complex and Ag-loaded TaON can reduce CO2 to HCOOH by visible light irradiation even in aqueous solution (TONHCOOH = 750, ΦHCOOH = 0.48%).

scholarly journals Integrating Z-scheme heterojunction of Co1-C3N4@α-Fe2O3 for efficient visible-light-driven photocatalytic CO2 reduction

2020 ◽  
Vol 22 (21) ◽  
pp. 7552-7559
Author(s):  
Bing-Cai He ◽  
Chao Zhang ◽  
Pei-Pei Luo ◽  
Yu Li ◽  
Tong-Bu Lu
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Water Oxidation ◽  
Co2 Reduction ◽  
Light Irradiation ◽  
Generation Rate ◽  
Visible Light Driven

A direct Z-scheme heterojunction of Co1-C3N4@α-Fe2O3 was constructed for efficient photocatalytic CO2 reduction coupled with water oxidation under visible-light irradiation, with a CO generation rate of 14.9 μmol g−1 h−1 and CO selectivity over 99%.

Synthesis of boron imidazolate frameworks with cobalt clusters for efficient visible-light driven CO2 reduction

2019 ◽  
Vol 7 (29) ◽  
pp. 17272-17276 ◽  
Author(s):  
Qin-Long Hong ◽  
Hai-Xia Zhang ◽  
Jian Zhang
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Co2 Reduction ◽  
High Density ◽  
Light Irradiation ◽  
Evolution Rate ◽  
Cobalt Clusters ◽  
Visible Light Driven ◽  
Crystalline Boron

A porous crystalline boron imidazolate framework, with a high density of trinuclear cobalt clusters, exhibits efficient photocatalytic performance for CO2 reduction with a CO evolution rate of 5830 μmol g−1 h−1 under visible-light irradiation.

Visible-light driven catalase-like activity of blackberry-shaped {Mo72Fe30} nanovesicles: combined kinetic and mechanistic studies

2018 ◽  
Vol 8 (18) ◽  
pp. 4645-4656 ◽  
Author(s):  
Rezvan Mokhtari ◽  
Abdolreza Rezaeifard ◽  
Maasoumeh Jafarpour ◽  
Alireza Farrokhi
Keyword(s):  
Aqueous Solution ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Mechanistic Studies ◽  
Visible Light Driven

Catalase-like activity of blackberry-shaped {Mo72Fe30} nanovesicles was exploited in aqueous solution under visible-light irradiation.

scholarly journals DEGRADATION OF ACID ORANGE 7 IN AQUEOUS SOLUTION UNDER PRESENCE OF IRON(III), PERSULPHATE AND VISIBLE LIGHT IRRADIATION

2017 ◽  
Vol 60 (3) ◽  
pp. 48
Author(s):  
Heng Zhong ◽  
Jun Li ◽  
Hui Zhao ◽  
Lei Sun ◽  
Aihua Xu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Inorganic Anions ◽  
Light Irradiation ◽  
Acid Orange 7 ◽  
Acid Orange ◽  
Insignificant Effect ◽  
Initial Ph

In this study, the degradation of Acid Orange 7 (AO7) in aqueous solutions by iron(III) under activation by persulfate (PS, S2O82-) oxidation and Visible (Vis) light (≥420 nm) exposure was performed. The efficiency of different systems including Fe3+/Vis, Fe3+/PS, PS/Vis and Fe3+/PS/Vis has been evaluated. It was found that the efficiency of Fe3+/PS and PS/Vis system was low, and only about 48% of AO7 was oxidized within 20 min of experiment time under Fe3+/Vis system action, and it was further improved to almost 95% within 20 min by Fe3+/PS/Vis system. Various process-dependent parameters, such as PS, Fe3+, dye concentration as well as initial pH were investigated to optimize the process. As results indicated, the dye's degradation efficiency increased with the increase of PS and Fe3+ concentration over the tested range. The pH had an insignificant effect on the degradation of AO7. The effect of inorganic anions was also investigated and the suppressive effects of inorganic anions can be ranked in an ascending order of Cl−≈NO3−<SO42−<HCO3−≈HPO42−.Forcitation:Heng Zhong, Jun Li, Hui Zhao, Lei Sun, Aihua Xu, Dongsheng Xia, Nevsky A.V. Degradation of acid orange 7 in aqueous solution under presence of iron (III), persulphate and visible light irradiation. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 3. P. 48-54.

Visible light-driven novel g-C3N4/NiFe-LDH composite photocatalyst with enhanced photocatalytic activity towards water oxidation and reduction reaction

2015 ◽  
Vol 3 (36) ◽  
pp. 18622-18635 ◽  
Author(s):  
Susanginee Nayak ◽  
Lagnamayee Mohapatra ◽  
Kulamani Parida
Keyword(s):  
Photocatalytic Activity ◽  
Composite Materials ◽  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Water Oxidation ◽  
Reduction Reaction ◽  
Light Irradiation ◽  
Composite Photocatalyst ◽  
Visible Light Driven

Dispersion of exfoliated CN over the surface of exfoliated LDH composite materials, and its photocatalytic water splitting under visible-light irradiation.

scholarly journals Exfoliation of graphite into graphene in aqueous solution: an application as graphene/TiO2 nanocomposite to improve visible light photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 93048-93055 ◽  
Author(s):  
R. Giovannetti ◽  
E. Rommozzi ◽  
M. Zannotti ◽  
C. A. D'Amato ◽  
S. Ferraro ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Activity ◽  
Liquid Phase ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Visible Light Photocatalytic Activity ◽  
Positive Effects ◽  
Graphene Dispersion ◽  
Visible Light Photocatalytic

Graphene dispersion (GR) was prepared by liquid-phase sonication of graphite and evaluated by XRD, DLS and UV-Vis analysis. It was used to prepare PP@mgGR–TiO2, showing positive effects on ARS photodegradation under visible light irradiation.

Solvothermal synthesis and visible light-driven photocatalytic degradation for tetracycline of Fe-doped SrTiO3

RSC Advances ◽  
2014 ◽  
Vol 4 (88) ◽  
pp. 47615-47624 ◽  
Author(s):  
Ping Li ◽  
Chunbo Liu ◽  
Guoling Wu ◽  
Yang Heng ◽  
Shuang Lin ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Light Irradiation ◽  
Photocatalytic Activities ◽  
Visible Light Driven ◽  
Facile Solvothermal Method

In this paper, Fe-doped SrTiO3 (FSTO) photocatalysts were successfully prepared via a facile solvothermal method, and their photocatalytic activities for degrading tetracycline (TC) under visible light irradiation were examined.

Photocatalytic CO2 reduction using water as an electron donor by a powdered Z-scheme system consisting of metal sulfide and an RGO–TiO2 composite

2017 ◽  
Vol 198 ◽  
pp. 397-407 ◽  
Author(s):  
Tomoaki Takayama ◽  
Ko Sato ◽  
Takehiro Fujimura ◽  
Yuki Kojima ◽  
Akihide Iwase ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Visible Light ◽  
Water Splitting ◽  
Electron Donor ◽  
Visible Light Irradiation ◽  
Co2 Reduction ◽  
Metal Sulfide ◽  
Electron Donors ◽  
Reduced Graphene

CuGaS2, (AgInS2)x–(ZnS)2−2x, Ag2ZnGeS4, Ni- or Pb-doped ZnS, (ZnS)0.9–(CuCl)0.1, and ZnGa0.5In1.5S4 showed activities for CO2 reduction to form CO and/or HCOOH in an aqueous solution containing K2SO3 and Na2S as electron donors under visible light irradiation. Among them, CuGaS2 and Ni-doped ZnS photocatalysts showed relatively high activities for CO and HCOOH formation, respectively. CuGaS2 was applied in a powdered Z-scheme system combining with reduced graphene oxide (RGO)-incorporated TiO2 as an O2-evolving photocatalyst. The powdered Z-scheme system produced CO from CO2 in addition to H2 and O2 due to water splitting. Oxygen evolution with an almost stoichiometric amount indicates that water was consumed as an electron donor in the Z-schematic CO2 reduction. Thus, we successfully demonstrated CO2 reduction of artificial photosynthesis using a simple Z-scheme system in which two kinds of photocatalyst powders (CuGaS2 and an RGO–TiO2 composite) were only dispersed in water under 1 atm of CO2.

Dehydrogenative 6π Heterocyclization under Visible Light Irradiation and Mechanistic Insights

2021 ◽  
Author(s):  
Zhao Zhang ◽  
Haohua Chen ◽  
Niklas Keller ◽  
Qin Xiong ◽  
Lei Liu ◽  
...  
Keyword(s):  
Transition Metals ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Reaction Proceeds ◽  
Visible Light Driven

A visible-light-driven oxidative 6π heterocycilization for the synthesis of structurally diverse π-conjugated polycyclic 1-aminoisoquinolines has been developed. The reaction proceeds under visible-light or sunshine, obviates photocatalyst and transition-metals, and features...

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