Abstract
The photocatalysis, sonocatalysis and their combination operated sequentially have been studied to treat the decolorization and mineralization of a cationic dye, Rhodamine B, using heterogeneous TiO2 catalyst. Effects of various operating parameters such as catalyst loading, H2O2 addition, and pH on photocatalytic and sonocatalytic processes were investigated. For both photocatalysis and sonocatalysis optimum catalyst and hydrogen peroxide concentrations were observed, while the dye degradation rates were favored at acidic conditions. Photocatalysis resulted in higher color degradation efficiencies compared with sonocatalysis. Coupled photosonocatalytic process showed better efficiencies for color degradation than the achieved by individual photocatalysis and sonocatalysis operating separately, implying possible synergy; however, no synergetic effect was observed for dye mineralization. Apparently the sequential photosonocatalytic operation process was more effective in inducing color degradation than mineralization.
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Articles in the same Issue
- Editorial
- Special Issue in Honor of J. Alberto Ochoa-Tapia
- Research Articles
- The Scientific Achievements of J. Alberto Ochoa-Tapia
- Volume Averaged Equations for Mass Transport and Reaction for In-Situ Combustion
- Non-Isothermal Effectiveness Factor for Catalytic Particles with Non-Fickian Diffusion
- Finite Time Estimation for Switched Nonlinear Systems: Application to Stirred Tank Bioreactor
- Numerical Solution for a System of Fractional Differential Equations with Applications in Fluid Dynamics and Chemical Engineering
- Characterization and Evaluation of Sorbent Materials Obtained from Orange Peel as an Alternative of Sustainable Materials for Water Treatment
- Metal complexes supported on activated carbon as catalysts for the hydrogenation of anthracene
- Iron Supported on Ion Exchange Resin as Source of Iron for Fenton Reagent: A Heterogeneous or a Homogeneous Fenton Reagent Generation?
- Stokes Flow Inside Topographically Patterned Microchannel Using Boundary Element Method
- Degradation and Mineralization of a Cationic Dye by a Sequential Photo-Sono Catalytic Process
- Preparation of Mo/HZSM-5/Bentonite Catalyst for Methane Aromatization in a Fluidized Bed Reactor
- On the Understanding of the Adsorption of 2-Phenylethanol on Polyurethane-Keratin based Membranes
- La-, Mn- and Fe-Doped Zirconia Washcoats Deposited on Monolithic Reactors via Sol-Gel Method: Characterization and Evaluation of their Mass Transfer Phenomena and Kinetics in Trichloroethylene Combustion
- State Estimation Based on Nonlinear Observer for Hydrogen Production in a Photocatalytic Anaerobic Bioreactor
Articles in the same Issue
- Editorial
- Special Issue in Honor of J. Alberto Ochoa-Tapia
- Research Articles
- The Scientific Achievements of J. Alberto Ochoa-Tapia
- Volume Averaged Equations for Mass Transport and Reaction for In-Situ Combustion
- Non-Isothermal Effectiveness Factor for Catalytic Particles with Non-Fickian Diffusion
- Finite Time Estimation for Switched Nonlinear Systems: Application to Stirred Tank Bioreactor
- Numerical Solution for a System of Fractional Differential Equations with Applications in Fluid Dynamics and Chemical Engineering
- Characterization and Evaluation of Sorbent Materials Obtained from Orange Peel as an Alternative of Sustainable Materials for Water Treatment
- Metal complexes supported on activated carbon as catalysts for the hydrogenation of anthracene
- Iron Supported on Ion Exchange Resin as Source of Iron for Fenton Reagent: A Heterogeneous or a Homogeneous Fenton Reagent Generation?
- Stokes Flow Inside Topographically Patterned Microchannel Using Boundary Element Method
- Degradation and Mineralization of a Cationic Dye by a Sequential Photo-Sono Catalytic Process
- Preparation of Mo/HZSM-5/Bentonite Catalyst for Methane Aromatization in a Fluidized Bed Reactor
- On the Understanding of the Adsorption of 2-Phenylethanol on Polyurethane-Keratin based Membranes
- La-, Mn- and Fe-Doped Zirconia Washcoats Deposited on Monolithic Reactors via Sol-Gel Method: Characterization and Evaluation of their Mass Transfer Phenomena and Kinetics in Trichloroethylene Combustion
- State Estimation Based on Nonlinear Observer for Hydrogen Production in a Photocatalytic Anaerobic Bioreactor