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Mohammad Irani

Bio: Mohammad Irani is an academic researcher from Islamic Azad University. The author has contributed to research in topics: Nanofiber & Adsorption. The author has an hindex of 35, co-authored 86 publications receiving 3342 citations. Previous affiliations of Mohammad Irani include Iran University of Science and Technology & University of Tehran.


Papers
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TL;DR: In this article, the potential of the prepared nanofiber membrane for adsorption of nickel (Ni), cadmium (Cd), lead (Pb) and copper (Cu) from aqueous solution was investigated.

330 citations

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TL;DR: The high water flux and high metal ions removal within 18 h filtration time showed the high potential of PVDF/ PAN/chitosan/UiO-66-NH2 membrane for the removal of metal ions from aqueous solutions.

327 citations

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TL;DR: In this paper, the chitosan/TiO 2 composite nanofibrous adsorbents were developed by two techniques including TiO 2 nanoparticles coated chitosa-nibers (coating method) and electrospinning of chitosi-nigram solutions (entrapped method) for the removal of Pb (II) and Cu(II) ions in a batch system.
Abstract: The chitosan/TiO 2 composite nanofibrous adsorbents were developed by two techniques including TiO 2 nanoparticles coated chitosan nanofibers (coating method) and electrospinning of chitosan/TiO 2 solutions (entrapped method). The potential of prepared nanofibers was investigated for the removal of Pb (II) and Cu (II) ions in a batch system. The nanofibers were characterized by SEM, FTIR and BET analysis. Kinetic and equilibrium studies showed that the experimental data of Pb (II) and Cu (II) ions were best described by pseudo-first-order and Redlich–Peterson isotherm models using the both chitosan/TiO 2 nanofibers. The maximum adsorption capacities of Cu (II) and Pb (II) ions using entrapped and coating methods were found to be 710.3, 579.1 and 526.5, 475.5 mg/g at equilibrium time of 30 min and 45 ° C, respectively. The reusability studies indicated that the chitosan/TiO 2 nanofibers prepared by entrapped method could be reused frequently without significant loss in adsorption performance after five adsorption/desorption cycles. Whereas, lower than 60% of total adsorption in first cycle took place for metal ions sorption using nanofibers prepared by coating method. The sorption studies of metal ions in a binary system revealed that the selectivity of metal sorption using chitosan/TiO 2 nanofibrous adsorbent was in order of Cu (II) > Pb (II).

196 citations

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TL;DR: In this article, a novel electrospun chitosan/graphene oxide (GO) nanofibrous adsorbent was successfully developed by an electrospinning process.
Abstract: A novel electrospun chitosan/graphene oxide (GO) nanofibrous adsorbent was successfully developed by an electrospinning process. The adsorption behaviors of Cu2+, Pb2+ and Cr6+ metal ions from aqueous solutions using chitosan/GO nanofibers were investigated. The composite nanofibers were characterized by FTIR and SEM and TEM analysis. Kinetic and equilibrium studies showed that the experimental data of Cu2+, Pb2+ and Cr6+ were best described by double-exponential kinetic and Redlich–Peterson isotherm models. The maximum monolayer adsorption capacity of Pb2+, Cu2+and Cr6+ metal ions using chitosan/GO nanofibers was found to be 461.3, 423.8 and 310.4 mg g−1 at an equilibrium time of 30 min and temperature of 45 °C. Evaluation of the thermodynamic parameters (ΔG° 0 and ΔS° > 0) showed that the nature of the metal ions sorption by chitosan/GO nanofibers was endothermic and spontaneous. The reusability studies indicated that the chitosan/GO nanofibers could be reused frequently without almost any significant loss in adsorption performance. This study provides a promising chitosan/GO nanofibrous adsorbent with an efficient adsorption property for heavy metal ions removal.

176 citations

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TL;DR: In this paper, the chitosan/MWCNTs/Fe 3 O 4 composite nanofibrous adsorbent was fabricated by electrospinning process and its application for the removal efficiency of Cr (VI) ions from aqueous solutions was investigated.

175 citations


Cited by
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01 Jan 1912

1,225 citations

Journal ArticleDOI
TL;DR: In this paper, the authors provide an overview of the electrospinning (applied electric field, distance between the needle and collector and flow rate, needle diameter), solution (polymer concentration, viscosity, solvent and solution conductivity) and environmental (relativity humidity and temperature) parameters that affect the nanofibers fabrication.

1,071 citations

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TL;DR: Detailed information and review on the adsorption of noxious heavy metal ions from wastewater effluents using various adsorbents - i.e., conventional (activated carbons, zeolites, clays, biosorbents, and industrial by-products) and nanostructured (fullerenes, carbon nanotubes, graphenes) is presented.

1,053 citations

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TL;DR: This review discusses the various forms of chitosan materials such as beads, films, microspheres, nanoparticles, nanofibers, hydrogels, nanocomposites, etc. as drug delivery device and attempted to report the vast literature available on chitOSan based materials in drug delivery applications.

702 citations