CV


Mahmood Hajiani

Mahmood Hajiani

Associate Professor

Faculty: Engineering

Department: Civil Engineering

Degree: Doctoral

CV
Mahmood Hajiani

Associate Professor Mahmood Hajiani

Faculty: Engineering - Department: Civil Engineering Degree: Doctoral |

Mahmoud Hajiani is an Associate Professor in the Department of Civil Engineering at the University of Birjand. He holds an M.Sc. in Water Engineering from Iran University of Science and Technology and a Ph.D. in Water and Environmental Engineering from Australia. His research focuses on the removal of emerging contaminants through nanoparticle synthesis, advanced technologies such as photocatalysis, and nano-bio approaches for environmental pollution control. His expertise also includes investigating and removing microplastics from water resources using innovative methods, developing bio-electrochemical systems for wastewater treatment and hydrogen production, modeling the dispersion of emerging pollutants such as microplastics in aquatic environments, and applying remote sensing systems for water quality assessment. He has published numerous research articles in reputable international journals, including those indexed in the JCR database.

My affiliation

Department of Civil Engineering, Faculty of Engineering, University of Birjand

نمایش بیشتر

Nylon-6/poly(propylene imine) dendrimer hybrid nanofibers: an effective adsorbent for the removal of anionic dyes

AuthorsMahmood Hajiani,aminoddin haji
JournalJOURNAL OF THE TEXTILE INSTITUTE
Page number444-454
Serial number112
Volume number3
Paper TypeFull Paper
Published At2021
Journal GradeISI
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal IndexJCR،Scopus

Abstract

Nylon-6/poly(propylene imine) dendrimer hybrid nanofibers (N6-PPI) were prepared by electrospinning. Their ability to remove Acid Red 252 as a model anionic dye was studied. Fourier transform infrared spectrometer and scanning electron microscope were used to investigate the chemical structure and morphology of the prepared nanofibers, respectively. The effect of different factors such as contact time, initial concentration of dye, temperature, pH, adsorbent dosage, and electrolyte concentration on the efficiency of dye removal were studied. The results showed that N6-PPI nanofiber has higher adsorption efficiency than pure N6 nanofiber. The maximum removal was achieved at pH 4. Meanwhile, the adsorption was also increased by increasing the initial concentration of the dye using an optimum amount of 0.1 g of adsorbent. Results showed that the dye adsorption fits with the Langmuir isotherm as well as the pseudo-second order kinetics. The results of this study showed that N6-PPI nanofiber can remove anionic dyes from aqueous media rapidly and efficiently

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