The Experts below are selected from a list of 9 Experts worldwide ranked by ideXlab platform
Behrouz Vahid - One of the best experts on this subject based on the ideXlab platform.
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Heterogeneous sonocatalytic degradation of Anazolene Sodium by synthesized dysprosium doped CdSe nanostructures.
Ultrasonics Sonochemistry, 2018Co-Authors: Alireza Khataee, Farzaneh Toutounchi Mohamadi, Tannaz Sadeghi Rad, Behrouz VahidAbstract:Abstract Undoped and Dy–doped CdSe nanoparticles are synthesized and then characterized by the SEM, XRD, FT–IR, XPS and BET methods, which verify successful preparation of the doped catalyst. The sonocatalytic degradation of Anazolene Sodium as a model azo dye is higher than sonolysis process and the 2% Dy–doped CdSe with band gap of 1.42 eV exhibits the greatest sonocatalytic performance. The decolorization efficiency (DE%) of sonocatalysis with 2% Dy–doped CdSe, undoped CdSe and sonolysis after 90 min of the process is 91.32%, 56.13% and 39.14%, respectively. In addition, the sonocatalytic degradation of Anazolene Sodium increases with enhancement of the dopant, catalyst dosage, ultrasonic power, dissolved gasses and decreasing of initial Anazolene Sodium concentration. Furthermore, with addition of chloroform, sulfate, chloride and ethanol as the radical scavengers, the DE% decreases indicating the controlling mechanism of free radicals for the dye degradation. Besides, the results reveal the appropriate reusability of the catalyst and various degradation by–products are identified using the GC–MS technique. Eventually, the empirical kinetic model is expanded by nonlinear regression analysis for prediction of pseudo first–order constants in various operational conditions.
Alireza Khataee - One of the best experts on this subject based on the ideXlab platform.
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Heterogeneous sonocatalytic degradation of Anazolene Sodium by synthesized dysprosium doped CdSe nanostructures.
Ultrasonics Sonochemistry, 2018Co-Authors: Alireza Khataee, Farzaneh Toutounchi Mohamadi, Tannaz Sadeghi Rad, Behrouz VahidAbstract:Abstract Undoped and Dy–doped CdSe nanoparticles are synthesized and then characterized by the SEM, XRD, FT–IR, XPS and BET methods, which verify successful preparation of the doped catalyst. The sonocatalytic degradation of Anazolene Sodium as a model azo dye is higher than sonolysis process and the 2% Dy–doped CdSe with band gap of 1.42 eV exhibits the greatest sonocatalytic performance. The decolorization efficiency (DE%) of sonocatalysis with 2% Dy–doped CdSe, undoped CdSe and sonolysis after 90 min of the process is 91.32%, 56.13% and 39.14%, respectively. In addition, the sonocatalytic degradation of Anazolene Sodium increases with enhancement of the dopant, catalyst dosage, ultrasonic power, dissolved gasses and decreasing of initial Anazolene Sodium concentration. Furthermore, with addition of chloroform, sulfate, chloride and ethanol as the radical scavengers, the DE% decreases indicating the controlling mechanism of free radicals for the dye degradation. Besides, the results reveal the appropriate reusability of the catalyst and various degradation by–products are identified using the GC–MS technique. Eventually, the empirical kinetic model is expanded by nonlinear regression analysis for prediction of pseudo first–order constants in various operational conditions.
Farzaneh Toutounchi Mohamadi - One of the best experts on this subject based on the ideXlab platform.
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Heterogeneous sonocatalytic degradation of Anazolene Sodium by synthesized dysprosium doped CdSe nanostructures.
Ultrasonics Sonochemistry, 2018Co-Authors: Alireza Khataee, Farzaneh Toutounchi Mohamadi, Tannaz Sadeghi Rad, Behrouz VahidAbstract:Abstract Undoped and Dy–doped CdSe nanoparticles are synthesized and then characterized by the SEM, XRD, FT–IR, XPS and BET methods, which verify successful preparation of the doped catalyst. The sonocatalytic degradation of Anazolene Sodium as a model azo dye is higher than sonolysis process and the 2% Dy–doped CdSe with band gap of 1.42 eV exhibits the greatest sonocatalytic performance. The decolorization efficiency (DE%) of sonocatalysis with 2% Dy–doped CdSe, undoped CdSe and sonolysis after 90 min of the process is 91.32%, 56.13% and 39.14%, respectively. In addition, the sonocatalytic degradation of Anazolene Sodium increases with enhancement of the dopant, catalyst dosage, ultrasonic power, dissolved gasses and decreasing of initial Anazolene Sodium concentration. Furthermore, with addition of chloroform, sulfate, chloride and ethanol as the radical scavengers, the DE% decreases indicating the controlling mechanism of free radicals for the dye degradation. Besides, the results reveal the appropriate reusability of the catalyst and various degradation by–products are identified using the GC–MS technique. Eventually, the empirical kinetic model is expanded by nonlinear regression analysis for prediction of pseudo first–order constants in various operational conditions.
Tannaz Sadeghi Rad - One of the best experts on this subject based on the ideXlab platform.
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Heterogeneous sonocatalytic degradation of Anazolene Sodium by synthesized dysprosium doped CdSe nanostructures.
Ultrasonics Sonochemistry, 2018Co-Authors: Alireza Khataee, Farzaneh Toutounchi Mohamadi, Tannaz Sadeghi Rad, Behrouz VahidAbstract:Abstract Undoped and Dy–doped CdSe nanoparticles are synthesized and then characterized by the SEM, XRD, FT–IR, XPS and BET methods, which verify successful preparation of the doped catalyst. The sonocatalytic degradation of Anazolene Sodium as a model azo dye is higher than sonolysis process and the 2% Dy–doped CdSe with band gap of 1.42 eV exhibits the greatest sonocatalytic performance. The decolorization efficiency (DE%) of sonocatalysis with 2% Dy–doped CdSe, undoped CdSe and sonolysis after 90 min of the process is 91.32%, 56.13% and 39.14%, respectively. In addition, the sonocatalytic degradation of Anazolene Sodium increases with enhancement of the dopant, catalyst dosage, ultrasonic power, dissolved gasses and decreasing of initial Anazolene Sodium concentration. Furthermore, with addition of chloroform, sulfate, chloride and ethanol as the radical scavengers, the DE% decreases indicating the controlling mechanism of free radicals for the dye degradation. Besides, the results reveal the appropriate reusability of the catalyst and various degradation by–products are identified using the GC–MS technique. Eventually, the empirical kinetic model is expanded by nonlinear regression analysis for prediction of pseudo first–order constants in various operational conditions.
Manouchehr Vosoughi - One of the best experts on this subject based on the ideXlab platform.
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Rapid H2O2-promoted oxidation of Anazolene Sodium over the [BMIM]PF=/Pt/γ-Al2O3 nanocatalyst
Journal of Nanostructures, 2019Co-Authors: Mohsen Padervand, Kaveh Gholami, Hadi Salari, Manouchehr VosoughiAbstract:Highly meso-porous Pt contained γ-Al2O3 nanostructure was prepared by a combined sol gel-pyrolysis method in the presence of polyvinylpyrrolidone and Pluronic p123 as surfactant. The surface of the prepared nanostructure was decorated with 1-Butyl-3-methylimidazolium hexafluorophosphate ([BMM]PF6) ionic liquid to enhance the sorption capacity and prevent the poisoning of the catalytic active sites. The catalyst was characterized by X-ray diffraction powder (XRD), Transmission Electron Microscopy (TEM), Energy Dispersive X-ray (EDX), and Brunauer–Emmett–Teller surface analysis (BET) methods. The XRD pattern and the results of elemental analysis well confirmed the crystalline phase of gamma-alumina and the presence of Pt nanoparticles on the surface. Decolorization of Anazolene Sodium (AS) dye compound as a typical wastewater was carried out using H2O2 as oxidative agent and the results showed that the prepared nanostructure had promising catalytic activity. The results of the recycling experiments showed that [BMIM]PF6/Pt/γ-Al2O3 is more promising than Pt/γ-Al2O3 which points out the role of ionic liquid layer on the surface.
