N-doped TiO2 nanosheets for photocatalytic degradation and mineralization of diazinon under simulated solar irradiation: Optimization and modeling using a response surface methodology

2016 ◽  
Vol 220 ◽  
pp. 183-191 ◽  
Author(s):  
Amir-Ahmad Salarian ◽  
Zahra Hami ◽  
Nezam Mirzaei ◽  
Seyed Mohsen Mohseni ◽  
Anvar Asadi ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Photocatalytic Degradation ◽  
Response Surface ◽  
Solar Irradiation ◽  
Doped Tio2 ◽  
Tio2 Nanosheets ◽  
Simulated Solar Irradiation

scholarly journals Photocatalytic degradation of 2,4,6-trichlorophenol in aqueous solutions using synthesized Fe-doped TiO2 nanoparticles via response surface methodology

2020 ◽  
Vol 183 ◽  
pp. 366-373 ◽  
Author(s):  
Anis Jahantiq ◽  
Reza Ghanbari ◽  
Ayat Hossein Panahi ◽  
Seyed Davoud Ashrafi ◽  
Aram Dokht Khatib ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Aqueous Solutions ◽  
Photocatalytic Degradation ◽  
Response Surface ◽  
Tio2 Nanoparticles ◽  
Doped Tio2

scholarly journals Photocatalytic Degradation of Monolinuron and Linuron in an Aqueous Suspension of Titanium Dioxide Under Simulated Solar Irradiation

2007 ◽  
Vol 20 (2) ◽  
pp. 163-172 ◽  
Author(s):  
Razika Zouaghi ◽  
Abdennour Zertal ◽  
Bernard David ◽  
Sylvie Guittonneau
Keyword(s):  
Photocatalytic Degradation ◽  
Degradation Rate ◽  
Ph Value ◽  
Degradation Kinetics ◽  
Aqueous Suspension ◽  
Operating Conditions ◽  
Solar Irradiation ◽  
Point Of Zero Charge ◽  
Degradation Rates ◽  
Simulated Solar Irradiation

Abstract The photocatalytic degradation of two phenylurea herbicides, monolinuron (MLN) and linuron (LN), was investigated in an aqueous suspension of TiO2 using simulated solar irradiation. The objective of the study was to compare their photocatalytic reactivity and to assess the influence of various parameters such as initial pesticide concentration, catalyst concentration and photonic flux on the photocatalytic degradation rate of MLN and LN. A comparative study of the photocatalytic degradation kinetics of both herbicides showed that these two compounds have a comparable reactivity with TiO2/simulated sun light. Under the operating conditions of this study, the photocatalytic degradation of MLN and LN followed pseudo first-order decay kinetics. The kobs values indicated an inverse dependence on the initial herbicide concentration and were fitted to the Langmuir-Hinshelwood equation. Photocatalytic degradation rates increased with TiO2 dosage, but overdoses did not necessarily increase the photocatalytic efficiency. The degradation rate of MLN increased with radiant flux until an optimum at 580 W m‑2 was reached and then decreased. Under these conditions, an electron-hole recombination was favored. Finally, the photocatalytic degradation rate depended on pH, where an optimum was found at a pH value close to the pH of the point of zero charge (pH = 6).

Photocatalytic degradation of paraquat dichloride over CeO2-modified TiO2 nanotubes and the optimization of parameters by response surface methodology

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104082-104093 ◽  
Author(s):  
Naimat Abimbola Eleburuike ◽  
Wan Azelee Wan Abu Bakar ◽  
Rusmidah Ali ◽  
Muhammad Firdaus Omar
Keyword(s):  
Response Surface Methodology ◽  
Surface Modification ◽  
Photocatalytic Degradation ◽  
Response Surface ◽  
Tio2 Nanotubes ◽  
Organic Pollutant ◽  
Optimization Of Parameters ◽  
Strong Potential

The synthesis and surface modification of TiO2 nanotubes with CeO2 holding strong potential for photocatalytic organic pollutant abatement in water.

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