scholarly journals Nanostructured TiO2 Sensitized with MoS2 Nanoflowers for Enhanced Photodegradation Efficiency toward Methyl Orange

ACS Omega ◽  
2021 ◽  
Author(s):  
Sagar V. Kite ◽  
Abhijit Nanaso Kadam ◽  
Dattatraya J. Sathe ◽  
Satish Patil ◽  
Sawanta S. Mali ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Nanostructured Tio2 ◽  
Photodegradation Efficiency

Research on Visible Light Photocatalytic Performance of Tungsten Doped TiO2

2011 ◽  
Vol 236-238 ◽  
pp. 399-402
Author(s):  
Dao Xin Wu ◽  
Zhou Lan Yin ◽  
Qi Yuan Chen ◽  
Jie Li ◽  
Ke Long Huang
Keyword(s):  
Methyl Orange ◽  
Low Temperature ◽  
Visible Light ◽  
Crystalline State ◽  
Photocatalytic Performance ◽  
Catalyst Concentration ◽  
Tetrabutyl Titanate ◽  
Photodegradation Efficiency ◽  
Rutile Titania ◽  
Visible Light Photocatalytic

In this paper, W-doped rutile titania was prepared by low temperature hydrolysis using Tetrabutyl titanate. Powers were characterized by XRD、DRS、PL. At 1073K, Doped concentration have been in a certain range, Tungsten could be doped into the lattice of rutile TiO2in the way of replacement, which would cause no change in rutile TiO2crystalline state with sunlight as the light source, pH=2.0, catalyst concentration was 1.0g.L-1, concentration of methyl orange was 5.0mg.L-1. It has been shown that Tungsten doped TiO2powders(1.0%,1073K) has been the most photodegradation efficiency, and the degradation efficiency was 96.8% after 12h.

Work function: a determining factor of the photodegradation rate of methyl orange via hollow octadecahedron Cu2O crystals

2018 ◽  
Vol 20 (30) ◽  
pp. 20117-20123 ◽  
Author(s):  
Bo Zhang ◽  
Shaowei Liao ◽  
Wenjun Wu ◽  
Hui Li ◽  
Tianrui Ren
Keyword(s):  
Methyl Orange ◽  
Work Function ◽  
Photodegradation Efficiency ◽  
Photodegradation Rate ◽  
Determining Factor

Herein, the work function serves as a crucial factor for controlling the photodegradation efficiency of methyl orange via hollow octadecahedron Cu2O crystals.

Fabrication and characterization of CdS doped TiO2 nanotube composite and its photocatalytic activity for the degradation of methyl orange

2015 ◽  
Vol 72 (8) ◽  
pp. 1341-1347
Author(s):  
Jinwook Chung ◽  
Seu-Run Kim ◽  
Jong-Oh Kim
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Uv Light ◽  
Pure Tio2 ◽  
Tio2 Nanotube ◽  
Doped Tio2 ◽  
Photodegradation Efficiency ◽  
Uv Light Irradiation ◽  
Fabrication And Characterization

CdS doped TiO2 nanotube composite was fabricated by chemical bath deposition, and was characterized by the structural, spectral and photoelectrochemical properties. The results of the structural and spectral properties showed that CdS particles were successfully deposited onto the surface of TiO2 nanotube. It is demonstrated that CdS doped TiO2 nanotube composite improved the light harvesting ability. Power conversion efficiency of about 0.32% was observed. This value is about 2.9 times higher than that of pure TiO2 nanotube. The CdS doped TiO2 nanotube composite possesses relatively higher photocatalytic activity and photodegradation efficiency than that of pure TiO2 nanotube under UV light irradiation, and the degradation efficiency of methyl orange was about 42% at UV intensity of 32 W.

Mechanism of UV-assisted TiO2/reduced graphene oxide composites with variable photodegradation of methyl orange

RSC Advances ◽  
2015 ◽  
Vol 5 (89) ◽  
pp. 72916-72922 ◽  
Author(s):  
Zeyu Lu ◽  
Guochang Chen ◽  
Wenbin Hao ◽  
Guoxing Sun ◽  
Zongjin Li
Keyword(s):  
Graphene Oxide ◽  
Methyl Orange ◽  
Reduced Graphene Oxide ◽  
Ultraviolet Irradiation ◽  
Photodegradation Efficiency ◽  
Reduced Graphene ◽  
Oxide Composites

TiO2/reduced graphene oxide (TiO2/rGO) composites were synthesized by ultraviolet irradiation method, and the mechanism of TiO2/rGO composites with variable photodegradation efficiency of methyl orange was proposed.

scholarly journals Surface photosensitization of ZnO by ZnS to enhance the photodegradation efficiency for organic pollutants

2021 ◽  
Vol 3 (7) ◽  
Author(s):  
Sunaina ◽  
Sapna Devi ◽  
S. T. Nishanthi ◽  
S. K. Mehta ◽  
A. K. Ganguli ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Organic Dyes ◽  
Light Exposure ◽  
Low Cost ◽  
Visible Region ◽  
Zns Nanoparticles ◽  
Electron Hole ◽  
Photodegradation Efficiency ◽  
Electron Hole Pair ◽  
Scalable Synthesis

AbstractIt is challenging to develop a material which has low cost, high activity, good stability and recyclability under light exposure. Apart from these properties, the photocatalyst should also have good visible region absorbance and low electron-hole pair recombination rate. Keeping all this in view, we have designed a simple scalable synthesis of ZnO–ZnS heterostructures for the photocatalytic treatment of industrial waste (p-nitrophenol and methyl orange). The ZnO–ZnS heterostructures are synthesized via a solvent-free route by thermal annealing of solid-state mixture of ZnO and thiourea (a sulphur source) which results in ZnO–ZnS core shell kind of heterostructure formation. The interface formation between the ZnO–ZnS heterostructure favored the band-gap reduction in comparison to the bare ZnO and ZnS nanoparticles. Further, these ZnO–ZnS heterostructures were utilized as a photocatalyst for the degradation of toxic phenolic molecules (p-nitrophenol) and harmful organic dyes (methyl orange) present in the water under the light exposure (> 390 nm).

Effect of Mn Doping on the Photocatalytic Photodegradation Properties of Zn1−xMnxO Nanomaterials

2010 ◽  
Vol 44-47 ◽  
pp. 2234-2238
Author(s):  
Chuan Ling Men ◽  
Hong Qin Li ◽  
Hua Zhang
Keyword(s):  
Thin Films ◽  
Methyl Orange ◽  
Spin Coating ◽  
Sol Gel ◽  
High Temperature Annealing ◽  
Mn Doping ◽  
Photodegradation Efficiency ◽  
Decolorization Efficiency ◽  
Vis Spectroscopy ◽  
Uv Visible

We study the effect of Mn doping on the photocatalytic photodegradation properties of Zn1−xMnxO nanomaterials to the methyl orange. The Zn1−xMnxO powders and thin films were synthesized by the sol-gel, spin coating and high temperature annealing processes. UV-visible (UV-Vis) spectroscopy was used to examine the radiated and non-radiated samples to study their photocatalytic photodegradation property of the methyl orange. Our results showed that Mn doping can enhance the decolorization efficiency of methyl orange at optimal Mn doping levels, and there exists an optimum Mn doping (x~0.18) at which photodegradation efficiency is nearly optimized.

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