Mohsen Motavasel

Mohsen Motavasel
Petroleum University of Technology | PUT · Department of Chemical Engineering

About

13
Publications
1,467
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254
Citations
Citations since 2017
11 Research Items
254 Citations
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2017201820192020202120222023020406080100
2017201820192020202120222023020406080100
2017201820192020202120222023020406080100

Publications

Publications (13)
Article
Full-text available
This work aimed at developing a natural compound-based hydrogel adsorbent to remove diclofenac as a model pharmaceutical from water. First, graphene oxide–chitosan (GO–CTS) and amine graphene oxide–chitosan (AGO–CTS) hydrogel adsorbents were synthesized via a facile mechanical mixing method. The synthesized materials were characterized through Four...
Article
Full-text available
Currently, the pollution of water by heavy metals is a common environmental problem because heavy metals are non-biodegradable and dangerous to human health at very low concentrations. Lead is one of the most prevalent heavy metals utilized in various industrial processes. In this study, an adsorbent made from nano Prosopis cineraria leaf ash (NPCL...
Article
Full-text available
The effect of nanoparticles aggregation on the heat transfer coefficient in a heat dissipation process of a circular tube is evaluated through computational fluid dynamics (CFD) technique, and the simulation results are compared to experimental data. The experimental data of MgO/CuO/Al2O3 water-based nanofluids which were obtained in our previous s...
Article
In this study, N-Cu co-doped TiO2 was decorated on the single-walled carbon nano-tube (marked as N-Cu co-doped TiO2@CNTs) via two-step sol–gel/hydrothermal synthesis method for the first time as a novel photocatalyst in coupling with ultrasound (US) waves. The catalyst properties were characterized via BET, Raman, FESEM, TEM, FTIR, XRD, EIS, PL, TG...
Article
Nanofluids are obtained by suspending metallic or non-metallic nanoparticles in conventional base liquids and can be employed to increase heat transfer rate in various applications. In this study, the effects of adding three types of nanofluids on turbulent convective heat transfer at the entrance region of a constant wall heat flux tube were exper...
Article
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Nanoparticles suspended in a base fluid yield increased thermal conductivity, which in turn increases convection heat transfer rate. Prediction of suitable relations for determination of thermal conductivity results in heightened accuracy in the calculation of convection heat transfer coefficient and reduced costs. In the majority of studies perfor...
Article
The extent of increase in the convection heat transfer of MgO/water nanofluid was investigated at low concentrations within the range of 0.02 to 0.12 % vol, under turbulent flow and within the Reynolds number range of 11,000 to 49,000. It was found that at about 12 %, the heat transfer coefficient was increased compared with the base fluid, where o...
Article
Full-text available
In the present study, the enhancement of biodegradability of Direct Orange-26 (azo dye) in aqueous solution by photo-Fenton-like process and nano-Fe2O3 as catalyst was investigated. The effects of initial pH, reaction time, initial concentration of nano-Fe2O3, and H2O2 dosage on the biochemical oxygen demand (BOD5)/chemical oxygen demand (COD) rati...
Article
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Existence of heavy metals like zinc within water source is considered as one of the most important environmental problems. Accumulating within alive tissues, zinc raises various diseases and disorders. Chitosan is a hydrophilic polymer which is raised from acetyl groups of chitin from alkaline solution: it is employed widely as a well- known adsorb...
Article
Full-text available
Nano-zerovalent iron (NZVI) was synthesized using green tea (GT) extract and it was used as an adsorbent in arsenate removal from water. FESEM, PSD, and XRD employed in the examination of particles and their characterizations. Results showed that the particles were spherical lumped together in a texture structure with sizes ranging from 20 to 70 na...

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