Kinetics analysis of photocatalytic degradation of Acid Orange 7 by Co/N/Er3+: Y3Al5O12/TiO2 films
-
Wang Lan
,
Zhang Lin Lin
Abstract
To improve the efficiency of decomposition of dye wastewater, the experiments of sonocatalytic degradation of Acid Orange 7 by TiO2-based films with doping Co, N and Er3+: Y3Al5O12 were performed in this paper. Based on analysis of the change of concentrations of the samples over time, the result showed that sonocatalytic degradation of Acid Orange 7 by TiO2-based films agreed with the pseudo-first-order kinetics. The effect of doping mass fraction of Er3+:Y3Al5O12, Co and N inTiO2-based films and reaction temperature on degradation rates were studied. The optimal doping mass fraction of Er3+: Y3Al5O12, Co and N were 1.81 %, 2.01 %, and 12.03 % respectively at 20 °C. The model of the reaction rate constants of sonocatalytic degradation of Acid Orange 7 by Co/N/Er3+: Y3Al5O12/TiO2 films were fitted. The errors between the model values and the experimental results were all less than 15 %. So the models could be used to estimate the degradation rate and concentration of Acid Orange 7 and provide theoretical basis for the design of catalytic reaction.
Funding statement: Authors would like to gratefully acknowledge support given by Natural Science fundation of Hebei Province (No. E2014210020).
Abbreviations
The following abbreviations were used in this manuscript:
- HEXL:
a kind of reactive dye
- UV:
ultraviolet
- AC:
activated carbon
- TNTs:
titanate nanotubes
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Articles in the same Issue
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Articles in the same Issue
- Editorial: The importance of advanced oxidation processes in degrading persistent pollutants
- An overview on heterogeneous Fenton and photoFenton reactions using zerovalent iron materials
- Photooxidative Degradation of Pesticides in Water; Response Surface Modeling Approach
- The treatment of aniline in aqueous solutions by gamma irradiation
- Microwave regeneration of biological activated carbon
- Molecular iodine/aqueous NH4OAc: a green reaction system for direct oxidative synthesis of nitriles from amines
- Catalytic Degradation of Safranin T in Aqueous Medium Using Non-conventional Processes
- Oxidation of 1, 2-dichlorobenzene on a commercial V2O5-WO3/nano-TiO2 catalyst: Effect of HCl addition
- Current conduction mechanisms in thermal nitride and dry gate oxide grown on 4H-silicon carbide (SiC)
- Effect of light and oxygen on repetitive bacterial inactivation on uniform, adhesive, robust and stable Cu-polyester surfaces
- Wet oxidation of an industrial high concentration pharmaceutical wastewater using hydrogen peroxide as an oxidant
- Oxidation characteristics of heavy crude oil in ignition process
- Comparative studies on the performance of porous Ti/Sno2-Sb2O3/Pbo2 enhanced by CNT and Bi Co-doped electrodes for methyl orange oxidation
- Application of photocatalytic paint for destruction of benzo[a]pyrene. Impact of air humidity
- Spray-drying synthesis and characterization of Li4Ti5O12 anode material for lithium ion batteries
- Kinetics analysis of photocatalytic degradation of Acid Orange 7 by Co/N/Er3+: Y3Al5O12/TiO2 films
- Reaction characteristics of oxygen generation from plate-like potassium superoxide within a confined space
- Electrochemical reduction of CO2 on a Cu2O/polyaniline /stainless steel based electrode
- Role of oxygen-containing functional surface groups of activated carbons on the elimination of 2-hydroxybenzothiazole from waters in A hybrid heterogeneous ozonation system
- The degradation efficiency and mechanism of meclofenamic acid in aqueous solution by UV irradiation
- Effect of electrode oxide film in micro arc oxidation on water treatment
- Photocurrent response and photocatalytic activity of Nd-doped TiO2 thin films prepared by sol-gel method
- Mathematical model involving chemical reaction and mass transfer for the ozonation of dimethyl phthalate in water in a bubble column reactor
- Elimination of organic micro-contaminants in municipal wastewater by a combined immobilized biomass reactor and solar photo-Fenton tertiary treatment
- Degradation of catechol on BiOCl: charge transfer complex formation and photoactivity
- Photocatalytic degradation of phenol on strontium titanate supported on HZSM-5
- Selective Fenton-like catalytic oxidation of acid orange II on inorganic heterogeneous molecular imprinted catalysts
- Decoloration of azo dye methyl orange by a novel electro-Fenton internal circulation batch reactor
