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  • دکتری (1383)

    شیمی

    دانشگاه تربیت مدرس، تهران، ایران

  • کارشناسی‌ارشد (1378)

    شیمی - شیمی تجزیه

    دانشگاه تربیت مدرس، تهران، ایران

  • نانوتکنولوژی در حذف آلاینده های محیط زیست
  • روش های نوین پایش آلاینده های محیط زیست
  • نانوبیوتکنولوژی

    زمینه های پژوهشی:

    کارشناس مسئول: منظر حقدوست

    تلفن:

    مکان: آزمایشگاه مرکزی

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ارتباط

رزومه

Performance Evaluation of colorimetric nano-sensor aminated graphene oxide-bromophenol blue based on Whatman paper in determining of the oxidation quality of fish feed kept in?…

Shahab Naghdi, Nader Bahramifar
Journal PapersUtilization and Cultivation of Aquatics , 2021 February 24, {Pages }

Abstract

In the present study, to evaluate the oxidation quality of fish meal stored at refrigerator temperature for 6 months, a colorimetric nano-sensor aminated graphene oxide - bromophenol blue based on Whatman paper was used. The results showed that the amount of moisture increased from 7.19% to 9.37% and ash content increased from 7.29% to 8.04% during storage (P <0.05). The amount of changing in fat and protein contents showed that fat content decreased from 12.87% to 10.53% and protein content decreased from 54.51% to 52.37% and showed decrease procedure during the storage period (P <0.05). Peroxide value (PV) increased during the period, and the maximum amount of that was at the end of the storage period with 6.1 meq O2 / kg lipid (P <0.05).

The role of slope aspect in runoff and sediment production of Ghachsaran and Aghajari formations

Hamzah Saeediyan, Hamid Reza Moradi, Sadat Feiznia, Nader Bahramifar
Journal PapersPhysical Geography Research Quarterly , 2021 May 6, {Pages }

Abstract

The role of slope aspect in erodibility of Ghachsaran and Aghajari formationsExtended Abstract Introduction:The erodibility of watershed area is a function of several factor, one of these factors is topography. Including main topography features is slope aspect of which directly or with the effect on other environmental factors is caused changes in soil hydrological processes particularly the potential for runoff and sediment production. Soil erosion is the most important environmental factor in the world that adversely affects all-natural ecosystems as well as those under human management. Although soil erosion has existed throughout history, it has been intensified in recent years due to improper land use. Environmental factors, such as

Magnetic Nitrogen-doped graphene synthesized from orange peel as highly effective adsorbent for removal of sodium dodecyl benzenesulfonate (SDBS) from aqueous solutions

Arash Khoshnoodfar, Nader Bahramifar, Habibollah Younesi
Journal Papers , 2021 April 19, {Pages }

Abstract

The purpose of the current research is to investigate the adsorption process behavior of magnetic nitrogen doped graphene (MNG) prepared from the orange peel in the adsorption of sodium dodecylbenzene sulfonate (SDBS) from liquid solution in batch experiments. The characteristics results of VSM, FTIR, SEM, AFM, Raman, elemental analysis and BET surface area analysis revealed the successful synthesis nano adsorbent. The effective factors on adsorption performance were including adsorbent dosage, temperature, contact time, pH and initial concentration of SDBS. The Maximum adsorption capacity for SDBS is computed to be 556 mg/g at 45◦ C and pH of 3. The adsorption process of SDBS was found that tted well with the Langmuir isotherm model and

Assessing the level of mercury metal contamination in the muscle tissue of carp (Cyprinus carpio) and Edox lucicus of Anzali wetland and its relationship with weight, age and diet

Masoumeh Khosravi, Nader Bahramifar, Ehsan Attaran
Journal PapersHuman & Environment , 2021 April 10, {Pages }

Abstract

Heavy metals and quasi-metals are among the stable and decomposing elements that threaten their health and human health if there are high concentrations in aquatic tissues. The aim of this study was to measure the level of mercury metal contamination in the diet of two species of fish in Anzali wetland with international standards and also to investigate the correlation between age, weight and diet with the level of metal contamination. The present study was conducted in 2017 to measure mercury metal contamination in the muscle tissue of carp and duck in Anzali International Wetland in Guilan Province. Fish samples were collected from three parts of east, center and west of Anzali wetland. To determine the total mercury concentration, LECO

Palm leaf ash as a biosorbent for improving the efficiency of the silver removal process

E Ahmadi Kamarposhti, N Bahramifar, S Ehsani Tilami
Journal Papers , , {Pages }

Abstract

Measurement of Heavy Metal Pollution in Water and Estimation of Potential Metal Hazards on the Life of Anzali wetland in 2017

M Khosravi, E Attaran, N Bahramifar
Journal Papers , , {Pages }

Abstract

How does land use configuration influence on sediment heavy metal pollution? Comparison between riparian zone and sub-watersheds

M Mohammadi, A Khaledi Darvishan, E Dinelli, N Bahramifar, SJ Alavi
Journal Papers , , {Pages }

Abstract

Investigation on the Efficiency of Activated Carbon Produced from Grapes Wood for the Removal of Reactive Blue 19 and Reactive Red 198 dyes from Aqueous Solution-Equilibrium …

M Bijari, Z Alimohammadi, H Younesi, N Bahramifar
Journal Papers , , {Pages }

Abstract

Performance Evaluation of colorimetric nano-sensor aminated graphene oxide-bromophenol blue based‎ on Whatman paper in determining of the oxidation quality of fish feed kept in …

S Naghdi, N Bahramifar
Journal Papers , , {Pages }

Abstract

Production of the polyhydroxyalkanoate biopolymer by Cupriavidus necator using beer brewery wastewater containing maltose as a primary carbon source

Malihe Amini, Hassan Yousefi-Massumabad, Habibollah Younesi, Hajar Abyar, Nader Bahramifar
Journal PapersJournal of Environmental Chemical Engineering , Volume 8 , Issue 1, 2020 February 1, {Pages 103588 }

Abstract

Recent technologies have been directed toward the use ofinexpensive carbon sources like agricultural wastes and wastewaters in order to produce polyhydroxyalkanoates (PHAs) in a large commercial and industrial scaleand to reducehazardous pollutants. This study aimed toproduce poly-3-hydroxybutyrate (PHB) from wastewater of the beer brewery industry using Cupriavidus necator. For this purpose, the experiments were performed at three steps to evaluate the effect ofC/N and C/Pratiosand industrial-grade maltose on biopolymer production. The batch system was chosen for the fermentation process and the alteration of bacterial growth and NH4+-N and PO43−-P consumption were monitored at24 h intervals.Maximum biopolymer productionof 1.98 g L

Total mercury and methylmercury concentrations in native and invasive fish species in Shadegan International Wetland, Iran, and health risk assessment

Zahedeh Rahmanikhah, Abbas Esmaili-sari, Nader Bahramifar
Journal Papers , 2020 January 20, {Pages 09-Jan }

Abstract

Human exposure to mercury (Hg) mainly occurs through consumption of aquatics, especially fish. In aquatic systems, the bioaccumulation of Hg across trophic levels could be altered by invasive species through changing community composition. The present study is aimed at measuring total mercury (T-Hg) and methylmercury (MeHg) concentrations in non-native (redbelly tilapia (Tilapia zillii)) and native (Benni (Mesopotamichthys sharpeyi) and common carp (Cyprinus carpio)) fish species throughout Shadegan International Wetland and comparing health risk of their mercury contents to the local population. The concentrations were measured using a direct mercury analyzer (DMA 80). The average values of T-Hg and MeHg for native fishes were 19.8 and 10.

Optimization using the response surface methodology for adsorption of polychlorinated biphenyls (PCBs) from transformer oil by magnetic CMCD-Fe3O4@ SiO2 nanoparticles

Sanaz Khammar, Nader Bahramifar, Habibollah Younesi
Journal PapersMaterials Chemistry and Physics , 2020 May 19, {Pages 123195 }

Abstract

The main objective of this work was to synthesis a novel magnetic nanoparticles functionalized with β-cyclodextrin and use it to refine transformer oil contaminated with high concentration of PCBs. Carboxymethyl-β-cyclodextrin modified Fe3O4@SiO2 magnetic nanoparticles (CMCD-Fe3O4@SiO2) were fabricated by grafting onto the core-shell silica magnetic nanoparticles surface using carbodiimide. The successful synthesis of nanocomposites was characterized by FTIR, XRD, VSM, SEM, TEM, VSM, TGA and EDX analysis. Hereinafter, the application of response surface methodology (RSM) based on the central composite design (CCD) was employed for optimization of the interactive effects of the three main variables on the removal efficiency of PCBs. A quad

Synthesis of porous graphene nanocomposite and its excellent adsorption behavior for Erythromycin antibiotic

Fateme Bahmei, Nader Bahramifar, Habibollah Younesi, Valeri Tolstoy
Journal PapersNanosystems: Physics, Chemistry, Mathematics , Volume 11 , Issue 2, 2020 January , {Pages 214-222 }

Abstract

The purpose of this study was to evaluate the efficiency of porous magnetic graphene (PMG) for removal of Erythromycin (ER) from aqueous solutions. PMG was prepared from banana peel residue, which was considered as a discarded material. As-synthesized nanocomposite was characterized by SEM, AFM, FTIR, RAMAN and BET analysis. The optimum conditions were obtained at pH of 3, contact time of 30 min, initial antibiotic concentration of 200 mg/L, and adsorbent dose of 0.35 g/L. In equilibrium, the Langmuir isotherm model was the best fit to the experimental data for the kinetics study, the adsorption process developed the pseudo-second-order model. According to the results, nanosheet had high adsorption capacity (286 mg/g) and can be considered

Preparation and surface engineering of CM-β-CD functionalized Fe3O4@ TiO2 nanoparticles for photocatalytic degradation of polychlorinated biphenyls (PCBs) from transformer oil

Sanaz Khammar, Nader Bahramifar, Habibollah Younesi
Journal PapersJournal of Hazardous Materials , 2020 February 28, {Pages 122422 }

Abstract

The aim of the present research is to investigate the efficiency of surface-modified magnetic nanoparticles for photocatalytic degradation of PCBs from transformer oil. Therefore, CMCD-Fe3O4@TiO2 was successfully produced via grafting of carboxymethyl-β-cyclodextrin (CM-β-CD) onto the core-shell titania magnetic nanoparticles surface. The photocatalytic efficiency of CMCD-Fe3O4@TiO2 for degradation of PCBs was systematically evaluated using an experimental design and the process parameters were optimized by response surface methodology (RSM). The central composite design (CCD) with four experimental parameters was used successfully in the modeling and optimization of photocatalytic efficiency in removing PCBs from transformer oil. ANOVA a

Selective Adsorption of Mercury (II) From Aqueous Solution Using Functionalized Nanochitosan by Carbon Disulfide

SM Hosseini, H Younesi, R Vajdi, N Bahramifar
Journal PapersJournal of Water and Wastewater , Volume 31 , Issue 2, 2020 January , {Pages 57-75 }

Abstract

Mercury (Hg) is one of the water pollutants and its removal from the aqueous environment is important. The major goal of this study was to remove the Hg (II) from aqueous solution by synthesizing a modified nanochitosan with carbon disulfide functional groups. Nanochitosan was synthesized using citric acid as an environmentally friendly crosslinking agent, and then it was modified with a carbon disulfide functional group. The characteristics of synthesized nanocomposite were studied by using proton nuclear magnetic resonance (1HNMR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). Batch adsorption experiments of Hg (II) in metal ion solution were conducted under

Improving Removal of Nickel from Wastewater using Palm Leaf Ash as a Biosorbent

Elahe Ahmadi Kamarposhti, Nader Bahramifar, Salma Ehsani Tilami
Journal PapersJournal of Applied Chemical Research , Volume 14 , Issue 2, 2020 January , {Pages 70-81 }

Abstract

Nickel (Ni) as a heavy metal due to its toxicity should be removed from wastewater and aquatic environments using efficient technology. The aim of this study was to remove Ni from an aqueous solution using palm leaf ash produced in a furnace. To do so, kinetic and thermodynamic experiments were conducted on the adsorption process. Moreover, the effect of time, pH, adsorbent and initial concentration of Ni was studied on Ni adsorption. The results of the experiment indicated that the Ni adsorption process followed the Freundlich isotherm model. The study of kinetic data also displayed the removal of Ni ions from the pseudo-second-order kinetics. The results showed that the percentage removal of Ni (II) and maximum adsorption capacity of an a

Rare Earth Elements as Emerging Contaminants and Applications, Occurrence, Sources, and Environmental and Human Health Risks Caused by Them: A Review Study

F Hedayatzadeh, AR Ildoromi, N Hassanzadeh, N Bahramifar
Journal Papers , Volume 19 , Issue 6, 2020 September 10, {Pages 619-648 }

Abstract

Materials and Methods: To achieve these goals, English studies conducted during 2004-2020 were used and considered by searching through databases.Results: Based on the results of these studies, ecotoxicological effects include reduced plant growth, function and nutritional quality, genotoxicity and neurotoxicity in animals, trophic bioaccumulation, acute and chronic toxicities in soil organisms. Human exposure to REEs via ingestion of contaminated water and food, inhalation, and direct intake during medical administration causes damage to nephrological systems, dysfunctional neurological disorder, fibrotic tissue injury, oxidative stress, pneumoconiosis, cytotoxicity, and male sterility.Conclusion: According to this study, future research o

Characterization and health risk assessment of particulate-bound polycyclic aromatic hydrocarbons in Tehran, Iran

Fatemeh Ahmadipour, Abbas Esmaeili Sari, Nader Bahramifar
Journal PapersAir Quality, Atmosphere & Health , 2020 August 1, {Pages 08-Jan }

Abstract

Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous pollutants in the urban atmosphere. An investigation of PAHs in the urban atmosphere of Tehran, Iran, was conducted in this study. Car engine air filters (CAFs) were collected in 15 taxi garages between 2016 and 2017 and analyzed for PAHs to assess the concentration level and health risks of polycyclic aromatic hydrocarbons (PAHs). The total concentrations of 16 PAHs (ΣPAHs) ranged from 169 to 174 μg/CAF. The average ΣPAHs concentration in winter was slightly higher than in summer. The most abundant individual PAH was phenanthrene, followed by fluoranthene, pyrene, and naphthalene. Concentrations of benzo [a] pyrene (BaP) varied between 1.80 and 2.27 μg/CAF. Based on estimated air v

Preparation of magnetic graphene nanocomposite for the removal of cefixime from aqueous solution

Sekineh Azimi Bizaki, Nader Bahramifar, Raziyeh Zandipak, Fateme Bahmeei
Journal PapersInternational Journal of Environmental Analytical Chemistry , 2020 November 23, {Pages 17-Jan }

Abstract

The magnetite graphene nanocomposite (G/Fe3O4) obtained from banana peels was prepared via a simple and green technique and utilised as an environmental-friendly adsorbent for cefixime(CFX) removal. The G/Fe3O4 nanocomposite was characterised by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), vibrating sample magnetometry (VSM), atomic force microscopy (AFM), Brunauer, Emmett, and Teller (BET), and UV–visible spectrophotometer. The adsorption parameters, including the initial CFX concentration, contact time, solution pH, temperature, and adsorbent dosage, were investigated. The adsorption kinetic and isotherm were well fitted

Spatio-temporal variation and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in surface dust of Qom metropolis, Iran

Morteza Davoudi, Abbas Esmaili-Sari, Nader Bahramifar, Mazaher Moeinaddini
Journal PapersEnvironmental Science and Pollution Research , 2020 November 2, {Pages 14-Jan }

Abstract

The objective of this research was to determine seasonal variation, distribution, potential health risk, and source identification of 16 polycyclic aromatic hydrocarbons (PAHs) in the surface dust of eight urban areas of Qom. The total levels of 16 PAHs ranged from 364.83 to 739.26 ng g− 1, with an average of 478.27 ng g− 1. Sites 1 and 8 showed the highest (491.33 ng g− 1) and lowest (465.08 ng g− 1) concentrations of PAHs, respectively. The PAHs demonstrated the highest and the lowest levels in autumn (553.41 ng g− 1) and summer (402.30 ng g− 1), respectively. Naphthalene (Nap) showed the highest amounts in all of the areas (75.57 ng g− 1). Source apportionment indicated that vehicular emissions and combustion of fossil fuel

دروس نیمسال جاری

  • كارشناسي ارشد
    روش هاي آناليز دستگاهي ( واحد)
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  • كارشناسي ارشد
    شيمي تجزيه و آلاينده هاي محيط زيست ( واحد)
  • كارشناسي ارشد
    شيمي تجزيه و آلاينده هاي محيط زيست ( واحد)

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