Efficient photocatalytic degradation of phenol by Ag-doped TiO2 nanocomposite photocatalysts under visible light irradiation in a three-phase fluidized bed reactor

2021 ◽  
Author(s):  
Nasim Yavari ◽  
Omid Tavakoli ◽  
Mohammad Javad Parnian
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Fluidized Bed ◽  
Visible Light Irradiation ◽  
Fluidized Bed Reactor ◽  
Light Irradiation ◽  
Doped Tio2 ◽  
Three Phase

N-doped TiO2/s-PS aerogels for photocatalytic degradation of organic dyes in wastewater under visible light irradiation

2014 ◽  
Vol 89 (8) ◽  
pp. 1175-1181 ◽  
Author(s):  
Vincenzo Vaiano ◽  
Olga Sacco ◽  
Diana Sannino ◽  
Paolo Ciambelli ◽  
Simona Longo ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Organic Dyes ◽  
Light Irradiation ◽  
Doped Tio2

Efficient photocatalytic degradation of organic pollutants by magnetically recoverable nitrogen-doped TiO2 nanocomposite photocatalysts under visible light irradiation

2015 ◽  
Vol 22 (23) ◽  
pp. 18859-18873 ◽  
Author(s):  
Sahar Hamzezadeh-Nakhjavani ◽  
Omid Tavakoli ◽  
Seyed Parham Akhlaghi ◽  
Zeinab Salehi ◽  
Parvaneh Esmailnejad-Ahranjani ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Doped Tio2 ◽  
Nitrogen Doped

scholarly journals Sol-Gel Synthesized N and MN Co-Doped Tio2 Nanomaterial for Photocatalytic Degradation of Malathion under Visible Light Irradiation

2019 ◽  
Vol 9 (2) ◽  
pp. 3688-3694
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Sol Gel ◽  
Light Irradiation ◽  
Average Particle ◽  
Doped Tio2 ◽  
Sem And Tem ◽  
Ft Ir ◽  
Co Doped

Different weight percentages (0.25-1.00 wt%) of Nitrogen (Non-Metal) and Manganese (Metal) co-doped nano titania were synthesized by sol-gel method and characterized by XRD, UV-vis.DRS, FT-IR, XPS, SEM and TEM. The XRD results has shown that all the prepared catalysts are in anatase phase indicating that co-doping of N and Mn did not affect the crystal structure of TiO2 . From the UV-vis.DRS spectra a significant absorption shift towards visible region was noticed in N and Mn co-doped TiO2 and their presence was confirmed by XPS and FT-IR results. SEM and TEM results showed spherical nanoparticles with average particle size of 9 nm. Photocatalytic efficiency of synthesized nano materials was tested on non-biodegradable organophosphorous pesticide, Malathion under visible light irradiation. The effect of dopant concentration, pH, catalyst dosage, and initial pesticide concentration on photocatalytic degradation of malathion was studied and optimum conditions were established. Among the synthesized samples 0.50 wt% N & 1.00 wt% Mn-TiO2 exhibited best photocatalytic performance. Photoluminiscent spectroscopy (PL) was used to examine the rate of production of oxidative species, hydroxyl radicals which play key role in photocatalytic degradation.

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