محسن مهدی پور قاضی
دانشکده مهندسی شیمی نفت و گاز دانشگاه سمنان
[ 1 ] - مدلسازی ریاضی و شبکه عصبی انتقال جرم در غشاهای مایع آمین گلایکول برای جداسازی دی اکسید کربن از هوا
هدف این پژوهش، مقایسه عملکرد شبکه عصبی مصنوعی و مدل ریاضی انتقال جرم در پیش بینی غلظت دی اکسید کربن در هوای خروجی از ماژول غشایی ساخته شده با استفاده از غشای مایع گلایکول آمین است. برای حل مسئله با شبکه عصبی از توابع خط فرمان، دادههای مسئله شامل بردارهای ورودی و هدف در فضای کاری نرم افزار مطلب بارگذاری شده و یک شبکه پیش خور با تابع انتقال تانژانت-سیگموئید در لایههای مخفی و تابع انتقال خطی در ...
[ 2 ] - Synthesis, characterization and degradation activity of Methyl orange Azo dye using synthesized CuO/α-Fe2O3 nanocomposite
This study investigated the photo-degradation of methyl orange (MO) as a type of azo dye using a CuO/α-Fe2O3 nanocomposite. A CuO/α-Fe2O3 powder with a crystalline size in the range of 27-49 nm was successfully prepared using simple co-precipitation along with a sonication method. The characterization of the synthesized sample was done via XRD, FE-SEM, EDS, FTIR and DRS analyses. The Tauc equat...
[ 3 ] - Synthesis of nanocomposite based on Semnan natural zeolite for photocatalytic degradation of tetracycline under visible light
This study investigated the photocatalytic behaviors for the nanocomposite of TiO2 P25 and Semnan natural zeolite in the decomposition of tetracycline under visible light in an aqueous solution. The structural features of the composite were investigated by a series of complementary techniques that included X-ray diffractometer (XRD), Fourier transform infrared spectroscopy (FTIR), scanning elec...
[ 4 ] - Photocatalytic degradation of textile dye direct orange 26 by using CoFe2O4/Ag2O
The magnetic and recyclable nanoparticles of CoFe2O4 were synthesized by a reverse co-precipitation process. Sonication was used to couple the CoFe2O4 surface with Ag2O. The characteristics and optical properties of the catalyst were studied by powder X-ray diffraction, UV–visible reflectance spectroscopy and scanning electron microscopy analyses. Pure CoFe2O4 and CoFe2O4/Ag2O were utilized to ...
[ 5 ] - Preparation and characterizations of CuO doped ZnO nano-structure for the photocatalytic degradation of 4-chlorophenol under visible light
In the present investigation, a ZnO nanostructure was synthesized by means of precipitation and sonochemical methods. The X-ray diffraction (XRD) pattern indicated that the wurtzite structure of ZnO had a hexagonal symmetry and there was no impurity. The average ZnO particles crystallite size was calculated at about 41 nm. The SEM and TEM images revealed nanostructure ZnO particles with a cauli...
[ 6 ] - Removal of Manganese from an Aqueous Solution Using Micellar-Enhanced Ultrafiltration (MEUF) with SDS Surfactants
In the present study, micellar-enhanced ultrafiltration (MEUF) was used to remove manganese (Mn) (II) from synthetic wastewater. The effects of different operational conditions on the filtration performance of MEUF or the membrane were studied. It was found that the transmembrane pressure has a major influence on the permeate flux and an insignificant effect on the rejection coefficient. The pe...
[ 7 ] - Synthesis and characterization of Polyaniline Nanocomposite by Using Several Types of Surfactants in Aqueous Media
Polyaniline (PANI) nanocomposite has been successfully prepared in aqueousmedia by the chemical polymerization of aniline with ammonium peroxydisulphateas an initiator in the presence of a steric stabilizer such as sodium dodecylbenzenesulfonate(DBSNa), Poly(vinyl pyrrolidone) (PVP), poly(vinyl alcohol)(PVA), poly(ethylene glycol) (PEG) and hydroxypropylcellulose (HPC). Thechemical structure, m...
[ 8 ] - Removal of Heavy Metal Particles by LTJ, ANA, SVR, BEC and MER zeolites particles: A Molecular Dynamics Simulation Study
In present study, molecular dynamics simulation of Cadmium (II), Lead (II) and Copper (II) removal from aqueous electrolyte solutions using the ion-exchange process with the zeolite particles was done. The results showed that, most of the particles had the highest affinity of ion exchanging with Lead (II) and the lowest affinity with Copper (II). The calculated mean ion-exchange ratios showed t...
[ 9 ] - ساخت نانوکامپوزیت مزوپروس ZnO/Al2O3 با استفاده از روش فاز مایع: بررسی اثرات ساختاری جذب H2S
حذف اجزای اسیدی گاز جهت کنترل خوردگی، جلوگیری از سمی شدن کاتالیزور در فرایندهای پایین‌دستی و رعایت استاندارد‌های محیط زیست در صنایع نفت و گاز و پتروشیمی بسیار مورد اهمیت می‌باشد. در این پژوهش نانوجاذب کامپوزیتی γ-Al2O3 /ZnO به منظور حذف سولفید هیدروژن، سنتز شده و مورد مشخصه‌یابی قرار گرفت. ابتدا پایه گاما آلومینابا استفاده از روش رسوبی با آمونیوم کربنات ساخته شده و سپس اکسید روی از طریق روش تل...
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