Environmental photochemistry of single layered graphene oxide in water

2015 ◽  
Vol 2 (2) ◽  
pp. 136-142 ◽  
Author(s):  
Yingcan Zhao ◽  
Chad T. Jafvert
Keyword(s):  
Graphene Oxide ◽  
Light Irradiation ◽  
Solar Light ◽  
Solar Light Irradiation ◽  
Environmental Photochemistry

This study shows that O2˙− and H2O2 are produced through reduction of O2 upon solar light irradiation of aqueous graphene oxide.

Photodegradation of Eosin Yellow Dye in Water under Simulated Solar Light Irradiation Using La-Doped ZnO Nanostructure Decorated on Graphene Oxide as an Advanced Photocatalyst

2018 ◽  
Vol 3 (4) ◽  
pp. 1180-1188 ◽  
Author(s):  
Samuel Osei-Bonsu Oppong ◽  
William Wilson Anku ◽  
Francis Opoku ◽  
Sudheesh Kumar Shukla ◽  
Penny Poomani Govender
Keyword(s):  
Graphene Oxide ◽  
Light Irradiation ◽  
Solar Light ◽  
Zno Nanostructure ◽  
Simulated Solar Light ◽  
Solar Light Irradiation ◽  
Doped Zno ◽  
Eosin Yellow ◽  
La Doped

Photocatalytic Degradation of Methylene Blue by NiO Thin Films under Solar Light Irradiation

2019 ◽  
Vol 56 ◽  
pp. 152-157 ◽  
Author(s):  
Abdelouahab Noua ◽  
Hichem Farh ◽  
Rebai Guemini ◽  
Oussama Zaoui ◽  
Tarek Diab Ounis ◽  
...  
Keyword(s):  
Thin Films ◽  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Sol Gel ◽  
Visible Region ◽  
Optical Transmittance ◽  
Dip Coating ◽  
Light Irradiation ◽  
Solar Light ◽  
Solar Light Irradiation

Nickel oxide (NiO) thin films were successfully deposited by sol-gel dip-coating method on glass substrates. The structural, morphological and optical properties in addition to the photocatalytic activity of the prepared films were investigated. The results show that the films have a polycrystalline NiO cubic structure with dense NiO grains and average optical transmittance in the visible region. The photocatalytic properties of the films were studied through the degradation of methylene blue and 89% of degradation was achieved for 4.5h of solar light irradiation exposure which indicates the capability of NiO photocatalytic activity.

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