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Reza Darvishi Cheshmeh Soltani,Mansoureh Mahmoudi,Grzegorz Boczkaj,Alireza Khataee 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.91 No.-
Herein, we focused on the degradation of acetaminophen (ACT) drug in liquid phase byperoxymonosulfate (PMS) activated by carbon black nano-spheres (CBNS). The nanostructured activatorwas immobilized into calcium alginate hydrogel matrix (CAHM) to avoid the washout of thefinenanostructures. The Langmuir modeling showed an insignificant contribution to the adsorption processin the removal of ACT. The basic pH conditions favored the decomposition of ACT. Among nutrients, thepresence of nitrogenous compounds including nitrite, nitrate and ammonium caused a little decrease inthe reactor performance, while the addition of phosphate ion improved the efficiency from 76.8% to81.9%. The results demonstrated the involvement of both SO4and OH radicals in the degradation ofACT and domination of SO4radicals in the degradation process. Co-immobilization of the CBNS withelectro-synthesized magnetite nanoparticles resulted in not only the enhanced reusability potential butalso improved the efficiency of the treatment process to 95.6%. Mineralization efficiency of the processwas not remarkable; however, the process produced an effluent with lower toxicity toward the microbialcommunity of the activated sludge.
Reza Darvishi Cheshmeh Soltani,Masumeh Mashayekhi,Alireza Khataee,Mohammad-Javad Ghanadzadeh,Mika Sillanpää 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.64 No.-
In the present study, amoxicillin (AMX) solution was treated by the combination of sonocatalysis (ultrasound/MgO nanoparticles) with electrolysis (Pt anode/graphite cathode). The reaction rate of the combined process (5.29 × 10−2 min−1) was over two orders of magnitude higher than that of the sonocatalysis (2.45 × 10−2 min−1). AMX was decomposed synergistically by the hybrid process (synergy percent of about 16%). On the basis of the applied mathematical modeling, an AMX removal efficiency (%) of more than 93% was achieved at Na2SO4 concentration of 0.13 M, current intensity of 0.04 A, MgO nanoparticles dosage of 1.8 g/L and AMX concentration of 11 mg/L.
Khataee, Alireza,Darvishi Cheshmeh Soltani, Reza,Hanifehpour, Younes,Safarpour, Mahdie,Gholipour Ranjbar, Habib,Joo, Sang Woo American Chemical Society 2014 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH - Vol.53 No.5
<P>Dy-doped ZnO nanoparticles were synthesized with a sonochemical method. X-ray diffraction, inductively coupled plasma, Fourier transform infrared spectroscopy, UV–vis diffuse reflectance spectroscopy, and scanning electron microscopy analyses confirmed the successfully synthesis and nanometric diameter of the samples. Dy-doped ZnO nanoparticles were used for photocatalytic decolorization of C. I. Acid Red 17 solution under visible light irradiation. Among different amounts of dopant agent, 3% Dy-doped ZnO nanoparticles indicated the highest decolorization. Decolorization efficiency increased from 14.3 to 57.0% with an increase in catalyst dosage from 0.25 to 1 g/L, while further increment in the catalyst dosage up to 2 g/L caused an obvious decrease in decolorization efficiency. The addition of 0.1 mM peroxydisulfate (S<SUB>2</SUB>O<SUB>8</SUB><SUP>2–</SUP>) resulted in a decolorization efficiency of nearly 100% after irradiation for 180 min. The trend of inhibitory effect in the presence of different radical scavengers was Cl<SUP>–</SUP> > C<SUB>2</SUB>H<SUB>5</SUB>OH > HCO<SUB>3</SUB><SUP>–</SUP> > CO<SUB>3</SUB><SUP>2–</SUP>.</P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ie402743u'>ACS Electronic Supporting Info</A></P>
Aydin Hassani,Reza Darvishi Cheshmeh Soltani,Semra Karaca,Alireza Khataee 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
In the present work, adsorption of basic red 46 (BR46) by nano-sized montmorillonite (MMT)/calciumalginate (CA) composite was optimized using central composite design. The maximum dye removal of85.07% was obtained at an initial dye concentration of 30 mg L 1, adsorbent dosage of 2 g L 1, contacttime of 60 min and temperature of 25 8C. The adsorption capacity decreased with decreasing both initialpH and mixing speed. The pseudo-second order kinetic model had the highest correlation coefficient(R2 = 1.00). Based on the Langmuir isotherm model, the maximum adsorption capacity of MMT/CA wasabout 35 mg g 1.
Saeed Sajjadi,Alireza Khataee,Reza Darvishi Cheshmeh Soltani,Nafiseh Bagheri,Afzal Karimi,Amirali Ebadi Fard Azar 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.68 No.-
Here, as-synthesized Fe3O4 nanoparticles were incorporated into the zeolitic imidazolate framework (ZIF-8) lattice to activate sodium percarbonate (SPC) for degradation of methylene blue (MB). The reaction rate constant of Fe3O4@ZIF-8/SPC process (0.0632 min−1) at acidic conditions (pH = 3) was more than six times that of the Fe3O4/SPC system (0.009 min−1). Decreasing the solute concentration, along with increasing SPC concentration and Fe3O4@ZIF-8 nanocomposite (NC) dosage, favored the catalytic degradation of MB. The Fe3O4@ZIF-8 NC after fifteen consecutive treatment processes showed the excellent stability with a negligible drop in the efficiency of the system (<10%). The reaction pathway was obtained via GC–MS analysis.
Parisa Yekan Motlagh,Reza Darvishi Cheshmeh Soltani,Zoha Pesaran,Sema Akay,Berkant Kayan,Yeojoon Yoon,Alireza Khataee 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.114 No.-
The present study aimed at treating a water medium containing pharmaceutical compounds such aslevofloxacin (LEV). For this purpose, ultrasound (US)-based degradation of LEV was catalyzed by TiO2and ZrO2 nano-catalysts supported on biochar (BC). BC was obtained from a precursor composite of papersludge and wheat husk. The application of BC-ZrO2 led to a degradation efficiency of 54.65% within60 min. When BC-TiO2 was used, a lower degradation efficiency of 49.62% was obtained at the same reactiontime. However, increasing the time to 120 min improved the sonocatalytic degradation of LEV by BCTiO2(72.88%) compared to that of BC-ZrO2 (66.42%). In the presence of H2O2 and S2O8 2, the LEV degradationefficiency of US/BC-TiO2 increased from 72.88% to 87.98% and 94.03%, respectively, and for theUS/BC-ZrO2 process, it increased from 66.42% to 76.79% and 90.14%, respectively. The addition of isopropanolcaused the most suppressive effect on the sonocatalytic degradation of LEV for both US/BCTiO2(decreasing from 72.88% to 13.99%) and US/BC-ZrO2 (decreasing from 66.42% to 16.43%) processes. The reusability test results showed an approximately 20% reduction in the sono-reactor performancewithin three consecutive experimental runs with no substantial change in the functional groups of theas-prepared sonocatalyst. Intermediates of LEV decomposed by the two sonocatalytic processes were alsoidentified.
Alireza Khataee,Aydin Hassani,Reza Darvishi Cheshmeh Soltani,Murat Kıranşan,Semra Karaca,Canan Karaca 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.1
The removal of two anionic dyes, C.I. Acid Orange 7 (AO7) and C.I. Acid Red 17 (AR17), by ultrasoundassisted adsorption on the modified nanoclay in aqueous solutions was studied. The modified nanoclay was characterized by SEM/EDX, BET, XRD and FT-IR techniques. The average crystal size for the interlayer spacing of the modified nanoclay was about 14.3 nm. Central composite design (CCD) was used for the optimization of the operational parameters, including the initial dye concentration, sonication time, adsorbent dosage and temperature. The results demonstrated a good agreement between the predicted values obtained by the model and the experimental values for both AO7 (R2= 0.959) and AR17 (R2=0.971).