The Experts below are selected from a list of 966 Experts worldwide ranked by ideXlab platform
Imran Ali - One of the best experts on this subject based on the ideXlab platform.
-
kinetics thermodynamics and modeling of Amido Black dye photodegradation in water using co tio2 nanoparticles
Photochemistry and Photobiology, 2018Co-Authors: Imran Ali, Omar M L Alharbi, Zeid A Alothman, Ahmad Yacine BadjahAbstract:Titanium oxide nanoparticles were doped with copper and characterized by XRD, FT-IR, TEM, and SEM. The surface morphology was spherical with 15-26 nm as particle size. The doped titanium oxide (Co/TiO2 ) nanomaterial was used for photodegradation of Amido Black dye in water. The maximum photodegradation of Amido Black obtained was 90%. The values of free energy and enthalpy were negative, indicating spontaneous photodegradation of Amido Black dye. The photodegradation of Amido Black dye obeyed first-order kinetic model. The photodegradation mechanism of Amido Black involved adsorption of the dye on the surface of cobalt doped titanium oxide and its degradation under UV radiation. The electron (e- ) and hole (h+ ) pairs were generated by Co/TiO2 , which consequently generated superoxide oxygen anion and hydroxyl free radical. These species degraded Amido Black dye. The reported method was fast, effective, and economic, which may be utilized to remove Amido Black in water. The doped TiO2 catalyst was quite stable and can be used up to 5 cycles.
-
artificial neural network modelling of Amido Black dye sorption on iron composite nano material kinetics and thermodynamics studies
Journal of Molecular Liquids, 2018Co-Authors: Imran Ali, Omar M L Alharbi, Zeid A Alothman, Ahmad Yacine Badjah, Abdulrahman Alwarthan, Al Arsh BasheerAbstract:Abstract The sorption of Amido Black dye in water on iron composite nano material is defined in batch process optimizing starting Amido Black amount, agitation time, pH, nano martial dose, and temp. The sorption results complied with Langmuir, Freundlich, Temkin and Dubinin-Radushkevich facsimilia. The proposed iron composite nano material were suitable for the sorption of Amido Black in water with determined 88%. The uptake was impulsive and exothermic. The adjusted batch limits were initial concentration 100 μg/L; agitation time 25 min, pH 7.0, dose 1.0 g/L and 25 °C temperature. The thermodynamic parameters like ΔG°, ΔH° and ΔS° were − 8.14, − 8.10 and − 8.02 kJ/mol at 20, 25 and 30 °C temps; − 4.32 kJ/mol and − 9.30 × 10− 3 kJ/mol K. The pseudo-first-order and liquid-film-diffusion mechanistic of the sorption were projected. The proposed sorption process was quick, ecological responsive and low-priced as may be utilized in normal water conditions. The artificial neural network modelling confirmed the applicability of the developed method. The method was competent to grind at normal water assets pHs with low sorbent amount and agitate time. The sorption process may be practical for the elimination of Amido Black dye from some water assets at large and low-priced scale.
Xiuwen Cheng - One of the best experts on this subject based on the ideXlab platform.
-
construction of biocooh g c3n4 composite photocatalyst and its enhanced visible light photocatalytic degradation of Amido Black 10b
Separation and Purification Technology, 2019Co-Authors: Xinyi Zhang, Xiuwen Cheng, Qingfeng Cheng, Huixuan ZhangAbstract:Abstract The application of semiconductor photocatalysts in wastewater treatment has received increasingly attentions because of its potential utilization of solar energy. In this study, a novel visible-light-driven (VLD) BiOCOOH/g-C3N4 composite photocatalyst was successful synthesized by a facile hydrothermal method. Afterwards, physicochemical properties of the resulting samples were investigated through X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET) surface areas, UV–visible diffuse reflectance spectroscopy (UV–vis DRS), transient photocurrent density, Mott-Schottky (M−S) and electrochemical impedance spectroscopy (EIS) measurement. Furthermore, the visible light photocatalytic (PC) performance was evaluated through the degradation of Amido Black 10B dye. All results indicated that the combination of g-C3N4 and BiOCOOH could exhibited greatly visible light absorbance and photo-generated charge separation efficiency, thereby resulting in the enhanced PC performance of BiOCOOH/g-C3N4 composite photocatalyst. The optimal Bi/C molar rate in BiOCOOH/g-C3N4 composite was determined to be 1/1, and the corresponding photodegradation rate for Amido Black 10B was 0.01794 min−1, which was nearly 2.19 and 5.73 folds higher than that of pure g-C3N4 and BiOCOOH. The possible mechanism of the PC reaction was also discussed in detail. Furthermore, BiOCOOH/g-C3N4 composite photocatalyst performed good reusability and stability even after four recycle utilization.
Ahmad Yacine Badjah - One of the best experts on this subject based on the ideXlab platform.
-
kinetics thermodynamics and modeling of Amido Black dye photodegradation in water using co tio2 nanoparticles
Photochemistry and Photobiology, 2018Co-Authors: Imran Ali, Omar M L Alharbi, Zeid A Alothman, Ahmad Yacine BadjahAbstract:Titanium oxide nanoparticles were doped with copper and characterized by XRD, FT-IR, TEM, and SEM. The surface morphology was spherical with 15-26 nm as particle size. The doped titanium oxide (Co/TiO2 ) nanomaterial was used for photodegradation of Amido Black dye in water. The maximum photodegradation of Amido Black obtained was 90%. The values of free energy and enthalpy were negative, indicating spontaneous photodegradation of Amido Black dye. The photodegradation of Amido Black dye obeyed first-order kinetic model. The photodegradation mechanism of Amido Black involved adsorption of the dye on the surface of cobalt doped titanium oxide and its degradation under UV radiation. The electron (e- ) and hole (h+ ) pairs were generated by Co/TiO2 , which consequently generated superoxide oxygen anion and hydroxyl free radical. These species degraded Amido Black dye. The reported method was fast, effective, and economic, which may be utilized to remove Amido Black in water. The doped TiO2 catalyst was quite stable and can be used up to 5 cycles.
-
artificial neural network modelling of Amido Black dye sorption on iron composite nano material kinetics and thermodynamics studies
Journal of Molecular Liquids, 2018Co-Authors: Imran Ali, Omar M L Alharbi, Zeid A Alothman, Ahmad Yacine Badjah, Abdulrahman Alwarthan, Al Arsh BasheerAbstract:Abstract The sorption of Amido Black dye in water on iron composite nano material is defined in batch process optimizing starting Amido Black amount, agitation time, pH, nano martial dose, and temp. The sorption results complied with Langmuir, Freundlich, Temkin and Dubinin-Radushkevich facsimilia. The proposed iron composite nano material were suitable for the sorption of Amido Black in water with determined 88%. The uptake was impulsive and exothermic. The adjusted batch limits were initial concentration 100 μg/L; agitation time 25 min, pH 7.0, dose 1.0 g/L and 25 °C temperature. The thermodynamic parameters like ΔG°, ΔH° and ΔS° were − 8.14, − 8.10 and − 8.02 kJ/mol at 20, 25 and 30 °C temps; − 4.32 kJ/mol and − 9.30 × 10− 3 kJ/mol K. The pseudo-first-order and liquid-film-diffusion mechanistic of the sorption were projected. The proposed sorption process was quick, ecological responsive and low-priced as may be utilized in normal water conditions. The artificial neural network modelling confirmed the applicability of the developed method. The method was competent to grind at normal water assets pHs with low sorbent amount and agitate time. The sorption process may be practical for the elimination of Amido Black dye from some water assets at large and low-priced scale.
Liping Qiao - One of the best experts on this subject based on the ideXlab platform.
-
degradation of azo dye Amido Black 10b in aqueous solution by fenton oxidation process
Dyes and Pigments, 2007Co-Authors: Guoliang Wang, Liping QiaoAbstract:Abstract The degradation of an azo dye Amido Black 10B in aqueous solution by Fenton oxidation process has been investigated. The effects of different reaction parameters such as initial pH, the initial hydrogen peroxide concentration ([H2O2]0), the initial ferrous concentration ([Fe2+]0), the initial Amido Black 10B concentration ([dye]0) and the temperature on the oxidative degradation of Amido Black 10B have been assessed. The optimal reacting conditions were experimentally determined and it was found to be initial pH = 3.50, [H2O2]0 = 0.50 mM, [Fe2+]0 = 0.025 mM for [dye]0 = 50 mg/L at temperature = 25 °C. Under optimal conditions, 99.25% degradation efficiency of dye in aqueous solution was achieved after 60 min of reaction. The UV–vis spectral changes of Amido Black 10B in aqueous solution during Fenton treatment process were studied. It was easier to destruct the azo linkage (–N N–) group than to destruct the aromatic rings of Amido Black 10B by Fenton oxidation. The experimental results showed that the Fenton oxidation process was an effective process for the degradation of azo dye Amido Black 10B at low H2O2 and Fe2+ concentrations.
Ruihua Huang - One of the best experts on this subject based on the ideXlab platform.
-
simultaneous removal of cr vi and Amido Black 10b ab10b from aqueous solutions using quaternized chitosan coated bentonite
International Journal of Biological Macromolecules, 2016Co-Authors: Pan Hu, Jing Wang, Ruihua HuangAbstract:Abstract In this study, simultaneous removal of Cr(VI) and Amido Black 10B (AB10B) using quaternized chitosan coated bentonite was investigated by a batch method. The factors affecting adsorption process such as pH, adsorbent dosage, contact time and initial concentration and the interaction of two components in binary solutions have been studied. The results showed that the antagonism effect existed between Cr(VI) and AB10B in binary systems. The equilibrium time for Cr(VI) adsorption was less than the one for AB10B adsorption. The maximum adsorption capacities of the modified bentonite, according to the Langmuir isotherm model were 847.5 mg/g for AB10B and 66.6 mg/g for Cr(VI) at 298 K. The experimental results demonstrated that both Cr(VI) and AB10B were well described by the pseudo-second-order model. Thermodynamic study depicted that the adsorption of Cr(VI) and AB10B onto the modified bentonite was both spontaneous. The adsorption for Cr(VI) was exothermic while the one for AB10B was endoth- ermic in nature.
-
adsorption of Amido Black 10b from aqueous solutions onto zr iv surface immobilized cross linked chitosan bentonite composite
Applied Surface Science, 2016Co-Authors: Lujie Zhang, Pan Hu, Jing Wang, Ruihua HuangAbstract:Abstract Zr(IV) surface-immobilized cross-linked chitosan/bentonite composite was synthesized by immersing cross-linked chitosan/bentonite composite in zirconium oxychloride solution, and characterized by X-ray diffraction, Fourier transform infrared spectroscopy, Scanning electron microscopy techniques. The adsorption of an anionic dye, Amido Black 10B, from aqueous solution by Zr(IV) loaded cross-linked chitosan/bentonite composite was investigated as a function of loading amount of Zr(IV), adsorbent dosage, pH value of initial dye solution, and ionic strength. The removal of Amido Black 10B increased with an increase in loading amount of Zr(IV) and adsorbent dosage, but decreased with an increase in pH or ionic strength. The adsorption of AB10B onto Zr(IV) loaded cross-linked chitosan/bentonite composite was favored at lower pH values and higher temperatures. The Langmuir isotherm model fitted well with the equilibrium adsorption isotherm data and the maximum monolayer adsorption capacity was 418.4 mg/g at natural pH value and 298 K. The pseudo-second-order kinetic model well described the adsorption process of Amido Black 10B onto Zr(IV) loaded cross-linked chitosan/bentonite composite. The possible mechanisms controlling Amido Black 10B adsorption included hydrogen bonding and electrostatic interactions.