Effects of calcination temperature on sol-gel synthesis of porous La2Ti2O7 photocatalyst on degradation of Reactive Brilliant Red X3B
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Dechang Han
Abstract
The effects of calcination temperature on properties of porous lanthanum titanate using PEG4000 template in a sol-gel route were studied. Photocatalytic degradation of Reactive Brilliant Red X3B on the materials was evaluated. Monoclinic La2Ti2O7 was synthesized in all the samples. The growing up of La2Ti2O7 crystals leads to apparent increases in crystallite size and cell volume with increasing calcination temperature. The Eg values for the samples are 3.38, 3.40, 3.33 3.36 and 3.44 eV when calcination temperature increases from 600 °C to 1,000 °C. High temperature calcination leads to apparent loss of both specific surface area and pore volume, although the average pore size is nearly unchanged. The decoloration efficiency by adsorption is in close relationship to the surface area of the materials. The sample prepared at 900 °C has the maximum photocatalytic activity on degradation of Reactive Brilliant Red X3B in aqueous solution. A continuous loss of degradation efficiency is observed after recycling of the material due to complex reasons.
Funding source: Natural Science Foundation of Liaoning Province
Award Identifier / Grant number: 2015020186
Funding statement: This work was supported by the Natural Science Foundation of Liaoning Province (No. 2015020186) and the open research fund of Key Laboratory of Wastewater Treatment Technology of Liaoning Province (No. 4771004kfs38).
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Artikel in diesem Heft
- Editorial
- Excitation Kinetics of Oxygen O(1D) State in Low-Pressure Oxygen Plasma and the Effect of Electron Energy Distribution Function
- Using amino-functionalized Fe3O4-WO3 nanoparticles for diazinon removal from synthetic and real water samples in presence of UV irradiation
- Treatment of high salinity wastewater using CWPO process for reuse
- Electrochemical Advanced Oxidation Processes (EAOP) to degrade per- and polyfluoroalkyl substances (PFASs)
- Effect of feedstock impurities on activity and selectivity of V-Mo-Nb-Te-Ox catalyst in ethane oxidative dehydrogenation
- Photocatalytic Degradation of Azo Dyes Over Semiconductors Supported on Polyethylene Terephthalate and Polystyrene Substrates
- Effects of calcination temperature on sol-gel synthesis of porous La2Ti2O7 photocatalyst on degradation of Reactive Brilliant Red X3B
- ClO2-oxidation-based demulsification of oil-water transition layer in oilfields: An experimental study
- Semi-permanent hair dyes degradation at W/WO3 photoanode under controlled current density assisted by visible light
- Degradation of PVA (polyvinyl alcohol) in wastewater by advanced oxidation processes
- Degradation of imidacloprid insecticide in a binary mixture with propylene glycol by conventional fenton process
- Gemini surfactant-assisted synthesis of BiOBr with superior visible light-induced photocatalytic activity towards RhB degradation
- Photocatalytic paraquat degradation over TiO2 modified by hydrothermal technique in alkaline solution
- Enhancement of Profenofos Remediation Using Stimulated Bioaugmentation Technique
- Mechanistic insight on the sonolytic degradation of phenol at interface and bulk using additives
- Biosolubilization of low-grade rock phosphate by mixed thermophilic iron-oxidizing bacteria
- Degradation of methyl orange using dielectric barrier discharge water falling film reactor
- Rapid prediction of hydrogen peroxide concentration eletrogenerated with boron doped diamond electrodes
