Synthesis of ZnS/CuS nanospheres loaded on reduced graphene oxide as high-performance photocatalysts under simulated sunlight irradiation

2017 ◽  
Vol 41 (13) ◽  
pp. 5732-5744 ◽  
Author(s):  
Liu Yang ◽  
Xin Guan ◽  
Guang-Sheng Wang ◽  
Xiao-Hui Guan ◽  
Bo Jia
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Photocatalytic Performance ◽  
Simulated Sunlight ◽  
Sunlight Irradiation ◽  
Reduced Graphene

Schematic descriptions for the formation of ZnS/CuS–rGO nanocomposites and their excellent photocatalytic performance.

scholarly journals Enhanced Ultraviolet-Visible Photocatalysis of RGO/Equaixial Geometry TiO2 Composites on Degradation of Organic Dyes in Water

2021 ◽  
Author(s):  
Jaafar Hasan ◽  
Jing Wang ◽  
Zhentao Wang ◽  
Muhammad Idrees ◽  
Saima Batool ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Degradation Rate ◽  
Photocatalytic Performance ◽  
Separation Efficiency ◽  
Organic Dyes ◽  
Tetrabutyl Titanate ◽  
Simulated Sunlight ◽  
Reduced Graphene ◽  
Sunlight Radiation

Abstract The reduced graphene oxide dopped equaixial geometry TiO2 (rGO/egTiO2) composite as photocatalyst was synthesized hydrothermally with various mass ratios of tetrabutyl titanate. The photocatalyst is considered to be rGO/equaixial geometry TiO2 in terms of modifying the combined reduced graphene Oxide and TiO2. The rGO plays a vital role in rGO/egTiO2 composite as photocatalysts were analyzed in methylene blue (MB) and rhodamine B (RhB) photocatalytic degradation under UV and simulated solar light irradiation. This synthesized catalyst was characterized by various analytical techniques such as XPS, XRD, SEM, BET and TEM. The rGO/egTiO2 composite exhibits enhanced photo-catalytic performance with degradation rate of 97.5 and 97% on RhB and MB for 60 min under UV radiation respectively, while the degradation rate of 94 and 92 % was observed on the same dyes for 6 h under the simulated sunlight radiation. The enhanced photocatalytic performance of the rGO/egTiO2 composite under ultraviolet irradiation source was owing to a high separation efficiency of the photo-induced electron-hole pairs, while the photocatalytic performance under simulated sunlight radiation was due to the photosensitive and charge separator behavior of rGO. This offers us an excellent potential of significant photo catalytic activity for the removal of organic contaminants from wastewater.

scholarly journals New green synthesized reduced graphene oxide–ZrO2 composite as high performance photocatalyst under sunlight

RSC Advances ◽  
2017 ◽  
Vol 7 (21) ◽  
pp. 12690-12703 ◽  
Author(s):  
K. Gurushantha ◽  
K. S. Anantharaju ◽  
L. Renuka ◽  
S. C. Sharma ◽  
H. P. Nagaswarupa ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Photocatalytic Performance ◽  
Reduced Graphene

ZrO2/rGO nanocomposite prepared via simple bio-mediated route exhibited excellent sunlight driven photocatalytic performance.

Solar hydrogen evolution using a CuGaS2 photocathode improved by incorporating reduced graphene oxide

2015 ◽  
Vol 3 (16) ◽  
pp. 8566-8570 ◽  
Author(s):  
A. Iwase ◽  
Y. H. Ng ◽  
R. Amal ◽  
A. Kudo
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Photoelectrochemical Cell ◽  
Simulated Sunlight ◽  
Applied Bias ◽  
Solar Hydrogen ◽  
Sunlight Irradiation ◽  
Reduced Graphene

A photoelectrochemical cell consisting of an enhanced RGO–CuGaS2 composite photocathode and a CoOx-loaded BiVO4 photoanode generated photocurrent under simulated sunlight irradiation without any external applied bias.

Synthesis and Characterization of Reduced Graphene Oxide

2013 ◽  
Vol 678 ◽  
pp. 56-60 ◽  
Author(s):  
Cherukutty Ramakrishnan Minitha ◽  
Ramasamy Thangavelu Rajendrakumar
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Graphite Oxide ◽  
High Performance ◽  
Structural Changes ◽  
Epoxy Group ◽  
Xrd Analysis ◽  
Si Substrates ◽  
Reduced Graphene ◽  
Reduced Graphite Oxide

Reduced graphene oxide is an excellent candidate for various electronic devices such as high performance gas sensors. In this work Graphene oxide was prepared by oxidizing graphite to form graphite oxide. From XRD analysis the peak around 11.5o confirmed that the oxygen was intercalated into graphite. By using hydrazine hydrate, the epoxy group in graphite oxide was reduced then the solution of reduced graphite oxide (rGO) is exfoliated. Raman spectrum of rGO contains both G band (1580 cm-1), D band (1350 cm-1). The remarkable structural changes reveals that reduction of graphene oxide from the values of ID/IG ratio that increase from 0.727 (GO) to 1.414 (rGO). The exfoliated reduced graphite oxide solution is spin coated on to the SiO2/Si substrates.

Green and facile preparation of graphene/resveratrol/polyaniline composites for high-performance supercapacitors

2021 ◽  
Vol 45 (7) ◽  
pp. 3581-3588
Author(s):  
Zhaokun Wang ◽  
Licong Jiang ◽  
Hongwei Pan ◽  
Yongyin Cui ◽  
Chengzhong Zong
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Environmentally Friendly ◽  
Reduced Graphene ◽  
Facile Preparation ◽  
Polyaniline Composites

A novel and environmentally-friendly resveratrol (RA) was used as an effective reagent for the preparation of reduced graphene oxide (rGO).

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