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

A potential natural solar light active photocatalyst using magnetic ZnFe2O4@ TiO2/Cu nanocomposite as a high performance and recyclable platform for degradation of naproxen

AuthorsMohammad Hossein Sayadi,Mahmood Hajiani
JournalJournal of Cleaner Production
Page number122023-122023
Serial number272
Volume number272
IF5.715
Paper TypeFull Paper
Published At2020
Journal GradeISI
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal IndexJCR،Scopus

Abstract

In this study, naproxen degradation examined using a photocatalytic method under the sunlight and UV light via ZnFe2O4@TiO2/Cu nanocomposite in the batch, continuous and large scale systems. ZnFe2O4@TiO2/Cu nanocomposite was prepared using Solvothermal method, and structure, morphology, and size of the nanoparticles was determined using XRD, VSM, FESEM/EDX, DLS, FTIR, TGA, UV–Vis (DRS), XPS, PL, ESR, Zeta potential and ICP-OES. pH, catalyst concentration, aeration, initial concentration of naproxen, flow rate was investigated on naproxen photodegradation. The results showed that ZnFe2O4@TiO2/Cu nanocomposites exhibited better photocatalytic activity in relation to ZnFe2O4@TiO2 and ZnFe2O4. The ZnFe2O4@TiO2/Cu nanocomposite exhibited naproxen photodegradition efficiency of 80.73% under sunlight. It also revealed high stability and recyclability, where in after 5 cycles of using the catalyst in take, 72.31% removal was achieved. With increasing flow rates i.e. from 5 to 15 ml/min, naproxen degradation decreased. Therefore, it can be safely concluded that ZnFe2O4@TiO2/Cu nanoparticle, due to high efficiency as well as easy separation of nanoparticles from pollutants via a magnet can be used as a practical, reliable, efficient and inexpensive way to remove contaminants from the water resources.

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