Enhanced photocatalytic degradation of methyl orange by coconut shell–derived biochar composites under visible LED light irradiation

2021 ◽  
Author(s):  
Yean Ling Pang ◽  
Zhi Xuan Law ◽  
Steven Lim ◽  
Yin Yin Chan ◽  
Siew Hoong Shuit ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Light Irradiation ◽  
Coconut Shell ◽  
Led Light ◽  
Degradation Of Methyl Orange

Exploration of the active species in the photocatalytic degradation of methyl orange under UV light irradiation

2013 ◽  
Vol 380 ◽  
pp. 10-17 ◽  
Author(s):  
Wenjuan Li ◽  
Danzhen Li ◽  
Jinxiu Wang ◽  
Yu Shao ◽  
Jinmao You ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Uv Light ◽  
Active Species ◽  
Light Irradiation ◽  
Uv Light Irradiation ◽  
Degradation Of Methyl Orange

Preparation and Photocatalysis Property of P-N Coupled Photocatalyst CoO/CdS/TiO2

2012 ◽  
Vol 512-515 ◽  
pp. 1677-1682 ◽  
Author(s):  
Fu Sheng Liu ◽  
Sheng Wang ◽  
Lian Lian Liu ◽  
Huan Du
Keyword(s):  
Optical Properties ◽  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Cadmium Concentration ◽  
Light Irradiation ◽  
Photocatalytic Activities ◽  
Photocatalytic Reactions ◽  
Degradation Of Methyl Orange

In this paper, p-n coupled photocatalyst CoO/CdS/TiO2 was prepared by method of impregnation. The structure and optical properties of CdS/TiO2 and CoO/CdS/TiO2 were characterized by XRD, SEM, BET and UV–vis DRS. The photocatalytic activities of the photocatalysts were evaluated by photocatalytic degradation of methyl orange, and the effect of photocorrosion of CdS in CoO/CdS/TiO2 was investigated by analyzing the cadmium concentration in the supernate collected after photocatalytic reactions. The results showed that p-n coupled photocatalyst CoO/CdS/TiO2 not only showed higher efficiency in degradation of methyl orange than CdS/TiO2, but also exhibited resistance against cadmium leakage under light irradiation. The mechanism of the photocorrosion-delaying by p–n junction was also discussed.

scholarly journals Efficient and Rapid Photocatalytic Degradation of Methyl Orange Dye Using Al/ZnO Nanoparticles

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1059
Author(s):  
Piangjai Peerakiatkhajohn ◽  
Teera Butburee ◽  
Jung-Hoon Sul ◽  
Supphasin Thaweesak ◽  
Jung-Ho Yun
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Removal Efficiency ◽  
Zno Nanoparticles ◽  
Light Absorption ◽  
Uv Light ◽  
Light Irradiation ◽  
Zno Nps ◽  
Calcination Temperatures ◽  
Degradation Of Methyl Orange

ZnO and Aluminum doped ZnO nanoparticles (Al/ZnO NPs) were successfully synthesized by the sol-gel method. Together with the effect of calcination temperatures (200, 300 and 400 °C) and Al dosage (1%, 3%, 5% and 10%) on structural, morphological and optical properties of Al/ZnO NPs, their photocatalytic degradation of methyl orange (MO) dye was investigated. The calcination temperatures at 200, 300 and 400 °C in forming structure of ZnO NPs led to spherical nanoparticle, nanorod and nanoflake structures with a well-crystalline hexagonal wurtzite, respectively. The ZnO NPs calcined at 200 °C exhibited the highest specific surface area and light absorption property, leading to the MO removal efficiency of 80% after 4 h under the Ultraviolet (UV) light irradiation. The MO removal efficiency was approximately two times higher than the nanoparticles calcined at 400 °C. Furthermore, the 5% Al/ZnO NPs exhibited superior MO removal efficiency of 99% in only 40 min which was approximately 20 times enhancement in photocatalytic activity compared to pristine ZnO under the visible light irradiation. This high degradation performance was attributed to the extended light absorption, narrowed band gap and effective suppression of electron–hole recombination through an addition of Al metal.

Graphene-ZnO nanocomposite for highly efficient photocatalytic degradation of methyl orange dye under solar light irradiation

2015 ◽  
Vol 33 (2) ◽  
pp. 456-464 ◽  
Author(s):  
Venkata Ramana Posa ◽  
Viswadevarayalu Annavaram ◽  
Janardhan Reddy Koduru ◽  
Varada Reddy Ammireddy ◽  
Adinarayana Reddy Somala
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Light Irradiation ◽  
Solar Light ◽  
Highly Efficient ◽  
Solar Light Irradiation ◽  
Methyl Orange Dye ◽  
Degradation Of Methyl Orange

Photocatalytic degradation of methyl orange by BiOI/Bi 4 O 5 I 2 microspheres under visible light irradiation

2018 ◽  
Vol 93 ◽  
pp. 65-68 ◽  
Author(s):  
Xujing Xiao ◽  
Ying Lin ◽  
Bole Pan ◽  
Wenjie Fan ◽  
Yongchao Huang
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Degradation Of Methyl Orange

scholarly journals Photocatalytic Degradation of Methyl Orange by CeO2 and Fe–doped CeO2 Films under Visible Light Irradiation

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
D. Channei ◽  
B. Inceesungvorn ◽  
N. Wetchakun ◽  
S. Ukritnukun ◽  
A. Nattestad ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Ceo2 Films ◽  
Doped Ceo2 ◽  
Degradation Of Methyl Orange
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