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M. Fathinia,A. R. KHATAEE 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.5
Optimization of photocatalytic degradation of phenazopyridine (PhP) under UV light irradiation using immobilized TiO2 nanoparticles was studied. The effect of operational parameters was investigated using response surface methodology (RSM). Maximum removal efficiency was achieved at the optimum conditions: initial drug concentration of 10 mg/L, UV light intensity of 47 W/m2, flow rate of 200 mL/min,and reaction time of 150 min. The residence time distribution (RTD) analysis was studied to find the effect of flow rate on the drug removal efficiency. The tracer (PhP) pulse injection response was studied with UV–vis measurements and was used to prepare RTD curves.
Khataee, A.,Khataee, A.,Fathinia, M.,Vahid, B.,Joo, S.W. Korean Society of Industrial and Engineering Chemi 2013 Journal of industrial and engineering chemistry Vol.19 No.6
To well describe the photoassisted-electrochemical process for treatment of the contaminated water, a new kinetic model was established based on the intrinsic reactions of the process. The kinetic model correlated apparent kinetic constants to operational parameters including applied current, initial dye concentration and flow rate. Degradation experiments were carried out with boron-doped diamond (BDD) anode and carbon nanotubes-polytetrafluoroethylene (CNTs-PTFE) cathode. The proposed kinetic model was validated by the experiments of C.I. Acid Blue 92 degradation in aqueous solution. The goodness of fitting (R<SUP>2</SUP>=0.96) demonstrated that the new model could describe both the kinetics and the hydrodynamics of the photo-electrochemical system.
Khataee, A.R.,Fathinia, M.,Joo, S.W. Pergamon 2013 Spectrochimica acta. Part A, Molecular and biomole Vol.112 No.-
<P>In this study, the photocatalytic degradation of a mixture of three pharmaceuticals, Metronidazole (MET), Atenolol (ATL) and Chlorpromazine (CPR), was quantified simultaneously during the UV/TiO2 process. The investigated TiO2 was Millennium PC-500 immobilized on ceramic plates by sol-gel based method. The partial least squares modeling was successfully applied for the multivariate calibration of the spectrophotometric data. The central composite design was applied to model and optimize the UV/TiO2 process. Predicted values of removal efficiency were found to be in good agreement with experimental values for MET, ATL and CPR (R-2 = 0.947 and Adj-R-2 = 0.906, R-2 = 0.977 and Adj-R-2 = 0.960 and R-2 = 0.982 and Adj-R-2 = 0.969, respectively). The optimum initial concentration of pharmaceuticals, reaction time and UV light intensity was found to be 10 mg L-1, 150 min and 38.45 W m(-2), respectively. The main degradation intermediates of pharmaceuticals produced in this process were identified by GC-MS technique. The chronic ecotoxicity of pharmaceuticals was evaluated using aquatic species Spirodela polyrrhiza prior to and after photocatalysis. The TOC results (90% removal after 16 h) and ecotoxicological experiments revealed that the photocatalysis process could effectively mineralize and reduce the ecotoxicity of the pharmaceuticals from their aqueous solutions. (C) 2013 Elsevier B.V. All rights reserved.</P>
Khataee, A.R.,Fathinia, M.,Zarei, M.,Izadkhah, B.,Joo, S.W. Korean Society of Industrial and Engineering Chemi 2014 Journal of industrial and engineering chemistry Vol.20 No.4
Oxidation of phenol in aqueous media using supported TiO<SUB>2</SUB> nanoparticles coupled with photoelectro-Fenton-like process using Mn<SUP>2+</SUP> cations as catalyst of electro-Fenton reaction was studied. The influence of the basic operational parameters such as initial pH of the solution, applied current, initial Mn<SUP>2+</SUP> concentration, initial phenol concentration and kind of ultraviolet (UV) light on the oxidizing efficiency of phenol was studied. An artificial neural network (ANN) model was coupled with genetic algorithm to predict phenol oxidizing efficiency and to find an optimal condition for maximum phenol removal. The findings indicated that ANN provided reasonable predictive performance (R<SUP>2</SUP>=0.949).
Alireza Khataee,Fatemeh Salahpour,Mehrangiz Fathinia,Behnam Seyyedi,Behrouz Vahid 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.26 No.-
Treatment of C.I. Acid Red 17 (AR17) by heterogeneous photo-Fenton-like process was studied using calcined laterite soil as an iron source. A complete characterization was performed to explain some of the properties of the used catalyst. Comparing the processes of heterogeneous Fenton-like and photo- Fenton-like, revealed that using heterogeneous photo-Fenton-like led to the highest decolorization efficiency (94.71% at 120 min). Experimental results indicated that the heterogeneous photo-Fenton-like process could be explained in terms of the Langmuir–Hinshelwood kinetic model. The main roles of hydroxyl radicals in degradation process were investigated by adding of various radical scavengers
A.R. Khataee,주상우,M. Fathinia,M. Zarei,B. Izadkhah 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.4
Oxidation of phenol in aqueous media using supported TiO2 nanoparticles coupled with photoelectro-Fenton-like process using Mn2+ cations as catalyst of electro-Fenton reaction was studied. The influence of the basic operational parameters such as initial pH of the solution, applied current, initial Mn2+ concentration, initial phenol concentration and kind of ultraviolet (UV) light on the oxidizing efficiency of phenol was studied. An artificial neural network (ANN) model was coupled with genetic algorithm to predict phenol oxidizing efficiency and to find an optimal condition for maximum phenol removal. The findings indicated that ANN provided reasonable predictive performance (R2 = 0.949).
Khataee, A.R.,Hasanzadeh, A.,Iranifam, M.,Fathinia, M.,Hanifehpour, Y.,Joo, S.W. Pergamon 2014 Spectrochimica acta. Part A, Molecular and biomole Vol.122 No.-
A novel, rapid and sensitive CuO nanosheets (NSs) amplified flow-injection chemiluminescence (CL) system, luminol-H<SUB>2</SUB>O<SUB>2</SUB>-CuO nanosheets, was developed for determination of the vancomycin hydrochloride for the first time. It was found that vancomycin could efficiently inhibit the CL intensity of luminol-H<SUB>2</SUB>O<SUB>2</SUB>-CuO nanosheets system in alkaline medium. Under the optimum conditions, the inhibited CL intensity was linearly proportional to the concentration of vancomycin over the ranges of 0.5-18.0 and 18.0-40.0mgL<SUP>-1</SUP>, with a detection limit (3σ) of 0.1mgL<SUP>-1</SUP>. The precision was calculated by analyzing samples containing 5.0mgL<SUP>-1</SUP> vancomycin (n=11) and the relative standard deviation (RSD) was 2.8%. Also, a high injection throughput of 120 sample h<SUP>-1</SUP> was obtained. The CuO nanosheets were synthesized by a sonochemical method. Also, X-ray diffraction (XRD) and scanning electron microscopy (SEM) analyses were employed to characterize the CuO nanosheets. The method was successfully employed to determine vancomycin hydrochloride in environmental water samples, pharmaceutical formulation and spiked human serum.
Alireza Khataee,Samira Arefi Oskoui,Mehrangiz Fathinia,Arezoo Fazli,Ali Shahedi Hojaghan,요네스피로즈살라리,주상우 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.30 No.-
Undoped and Gd-doped PbSe nanoparticles were synthesized through a simple hydrothermal method. The photocatalytic activity of the catalysts was evaluated through the degradation of sulfasalazine (SSZ)under visible light irradiation. Synthesized nanoparticles were characterized by SEM, XRD, and XPStechniques. The photocatalytic degradation efficiency of SSZ in the presence of 8% Gd-doped PbSe(80.67%) was higher than that of undoped PbSe (42%). The order of the inhibitory effect of differentinorganic ions was HCO3> Cl > SO42 > F . The photocatalytic degradation intermediates wereidentified using GC–MS. Phytotoxicity of SSZ and its intermediates formed in photocatalytic processwere evaluated.
Alireza Khataee,주상우,Amirreza Khataee,Mehrangiz Fathinia,Behrouz Vahid 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.6
To well describe the photoassisted-electrochemical process for treatment of the contaminated water, a new kinetic model was established based on the intrinsic reactions of the process. The kinetic model correlated apparent kinetic constants to operational parameters including applied current, initial dye concentration and flow rate. Degradation experiments were carried out with boron-doped diamond (BDD) anode and carbon nanotubes–polytetrafluoroethylene (CNTs–PTFE) cathode. The proposed kinetic model was validated by the experiments of C.I. Acid Blue 92 degradation in aqueous solution. The goodness of fitting (R2 = 0.96) demonstrated that the new model could describe both the kinetics and the hydrodynamics of the photo-electrochemical system.