Carbon dot-coupled BiVO4/reduced graphene hydrogel for significant enhancement of photocatalytic activity: antibiotic degradation and CO2 reduction

The photocatalyst performance highly relies on the quantity of carrier transfer from the bulk to surface during the catalytic process. However, the polarization electric field induced by charge accumulation at...

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Enhanced gas sensing and photocatalytic activity of reduced graphene oxide loaded TiO2 nanoparticles

Chemical Physics Letters ◽

10.1016/j.cplett.2021.138897 ◽

2021 ◽

pp. 138897

Author(s):

Suresh Sagadevan ◽

J. Anita Lett ◽

Getu Kassegn Weldegebrieal ◽

Md Rokon ud Dowla Biswas ◽

Won Chun Oh ◽

...

Keyword(s):

Photocatalytic Activity ◽

Graphene Oxide ◽

Tio2 Nanoparticles ◽

Reduced Graphene Oxide ◽

Gas Sensing ◽

Reduced Graphene

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Effect of transition metal oxide cocatalyst on the photocatalytic activity of Ag loaded CaTiO3 for CO2 reduction with water and water splitting

Applied Catalysis B Environmental ◽

10.1016/j.apcatb.2021.119899 ◽

2021 ◽

Vol 286 ◽

pp. 119899

Author(s):

Tayyebeh Soltani ◽

Xing Zhu ◽

Akira Yamamoto ◽

Surya Pratap Singh ◽

Eri Fudo ◽

...

Keyword(s):

Photocatalytic Activity ◽

Transition Metal ◽

Metal Oxide ◽

Water Splitting ◽

Co2 Reduction ◽

Transition Metal Oxide

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Hybrid reduced graphene oxide/TiO2/graphitic carbon nitride composites with improved photocatalytic activity for organic pollutant degradation

Applied Physics A ◽

10.1007/s00339-018-1933-6 ◽

2018 ◽

Vol 124 (7) ◽

Cited By ~ 8

Author(s):

Ping Lin ◽

Haihua Hu ◽

Huiru Lv ◽

Zixuan Ding ◽

Lingbo Xu ◽

...

Keyword(s):

Photocatalytic Activity ◽

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Carbon Nitride ◽

Organic Pollutant ◽

Graphitic Carbon ◽

Graphitic Carbon Nitride ◽

Pollutant Degradation ◽

Organic Pollutant Degradation ◽

Reduced Graphene

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

Faraday Discussions ◽

10.1039/c6fd00215c ◽

2017 ◽

Vol 198 ◽

pp. 397-407 ◽

Cited By ~ 37

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.

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Cu2O/TiO2 decorated on cellulose nanofiber/reduced graphene hydrogel for enhanced photocatalytic activity and its antibacterial applications

Chemosphere ◽

10.1016/j.chemosphere.2021.131731 ◽

2021 ◽

pp. 131731

Author(s):

Alvin Lim Teik Zheng ◽

Sarah Sabidi ◽

Teruhisa Ohno ◽

Maeda Toshinari ◽

Yoshito Andou

Keyword(s):

Photocatalytic Activity ◽

Cellulose Nanofiber ◽

Reduced Graphene

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ZnO nanowire arrays decorated 3D N-doped reduced graphene oxide nanotube framework for enhanced photocatalytic CO2 reduction performance

Journal of CO2 Utilization ◽

10.1016/j.jcou.2021.101584 ◽

2021 ◽

Vol 50 ◽

pp. 101584

Author(s):

Jun Zhang ◽

Shuai Shao ◽

Desen Zhou ◽

Quanlong Xu ◽

Tielin Wang

Keyword(s):

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Co2 Reduction ◽

Nanowire Arrays ◽

Zno Nanowire ◽

Zno Nanowire Arrays ◽

Reduced Graphene

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Synthesis of silicon-doped reduced graphene oxide and its applications in dye-sensitive solar cells and supercapacitors

RSC Advances ◽

10.1039/c5ra25962b ◽

2016 ◽

Vol 6 (18) ◽

pp. 15080-15086 ◽

Cited By ~ 29

Author(s):

Zegao Wang ◽

Yuanfu Chen ◽

Pingjian Li ◽

Jiarui He ◽

Wanli Zhang ◽

...

Keyword(s):

Graphene Oxide ◽

Solar Cells ◽

Electrochemical Properties ◽

Reduced Graphene Oxide ◽

Annealing Treatment ◽

Significant Enhancement ◽

Reduced Graphene ◽

Silicon Doped

The silicon-doped reduced graphene oxide was synthesized via annealing treatment of triphenylsilane and graphene oxide. It exhibits significant enhancement in electrocatalytic and electrochemical properties.

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Photocatalytic Activity of Reduced Graphene Oxide-SnSe Nanohybrids with Efficiency Interface Effect

NANO ◽

10.1142/s1793292017500321 ◽

2017 ◽

Vol 12 (03) ◽

pp. 1750032 ◽

Cited By ~ 2

Author(s):

H.-Y. He

Keyword(s):

Photocatalytic Activity ◽

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Malachite Green ◽

Interface Effect ◽

Solution Ph ◽

Photodegradation Efficiency ◽

Reduced Graphene ◽

Narrow Bandgap ◽

Photocatalytic Activities

Reduced graphene oxide-SnSe (rGO-SnSe) nanohybrids were synthesized with a solution chemical reaction at room temperature. The nanohybrids were characterized by various techniques for their microstructural and photocatalytic activities in photodegradation of alkaline dye malachite green in the water. The effects of rGO/SnSe ratio, initial solution pH, and H2O2 concentration on the photodegradation efficiency were studied. The SnSe nanocrystallines with nanoscale size and narrow bandgap were formed and uniformly adhered on the rGO surface. Raman analysis confirmed the reduction of GO. The experimental results indicated that the nanohybrids showed excellent sunlight-excited photocatalytic activity in degrading malachite green in the water. Significantly, the nanohybrids showed remarkable photo-Fenton-like catalytic activity. The photodegradation rates of the hybrids were greater than that of SnSe nanoparticles, increased with increasing rGO/SnSe ratio, and related to operation parameters. High photocatalytic activities were ascribed to the efficiency interface effect that was confirmed by the calculations of band energy level and photoconductivity. The TOC measurement further verified the photodegradation results. The nanoparticles and nanohybrids also showed excellent reusability.

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