Mansoor Anbia
Research Laboratory of Nanoporous Materials, Department of Chemistry, Iran University of Science and Technology, P.O. Box 16846-13114 Tehran, I.R. IRAN
[ 1 ] - Hydrothermal Synthesis of Flower-Like α-Quartz Nanostructures from Iran Kaolin
Over the past many years, synthesized silica (SiO2) has attracted wide attention because of its unique characteristics, such as low density, low thermal conductivity, high surface area, high thermal shock resistance and high specific strength. In this study, Flower-like α-quartz nano-structures have been synthesized through the hydrothermal method. The synthetic...
[ 2 ] - Synthesis of Nanoporous Metal Organic Framework MIL-53-Cu and Its Application for Gas Separation
MIL-53-Cu has been synthesized hydrothermally and has been used for the first time for gas separation. MIL-53-Cu shows adsorption capacities of 8.1, 0.7 and 0.5 m.mol/g, respectively, for CH4, CO2 and H2 at 30 bar and 298 K. The high CH4 adsorption capacity of MIL-53-Cu maybe attributed to the high pore volume and large number of open metal sites....
[ 3 ] - Ordered Nanoporous Carbon Based Solid-Phase Microextraction for the Analysis of Nitroaromatic Compounds in Aqueous Samples
In this paper, the possibility of using a new ordered nanoporous carbon as a new fiber in headspace solid phase microextraction (HS-SPME) to determine of mononitrotoluenes (MNTs) in waste water is demonstrated. The structural order and textural properties of the ordered nanoporous carbon were studied by X Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) images and nitrogen adsorpti...
[ 4 ] - Improving CO2 adsorption with new amine-functionalized Y-type zeolite
In this work, a new synthesized Y-type zeolite with an Si/Al molar ratio of 2.5 (NaY) was modified with amines, in order to probe the influence of the modification of the adsorbent’s surface on CO2 adsorption. The three selected amines were diethanolamine, tetraethylenepentamine, and 2- methylaminoethanol. The surface nature of NaY was changed after amine modification, which causes a...
[ 5 ] - MWCNT@MIL-53 (Cr) Nanoporous Composite: Synthesis, Characterization, and Methane Storage Property
In this paper, porous metal−organic frameworks (MIL-53 [CrIII (OH).{O2C-C6H4-CO2}.{HO2C-C6H4-CO2H}x]) were hydrothermally synthesized and, then, a hybrid composite of these synthesized porous metal−organic frameworks (MOF) with acid-treated multi-walled carbon nanotubes (MWCNTs) was prepared. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunau...
[ 6 ] - Investigation of the Use of Various Silica Source on NaX Zeolite Properties
Silicon and aluminum sources are most important reactants in the synthesis of zeolite. The use of the silicon source has an important effect on the crystallization of zeolites. Also, it can change the properties of the end product. This work reports the influence of three common commercial silica sources such as colloidal silica (Ludox AM-30), fumed silica and water glass on the crystallinity o...
[ 7 ] - Stepwise Synthesis of Mesoporous Carbon Nitride Functionalized by Melamine Based Dendrimer Amines for Adsorption of CO2 and CH4
In this study, a novel solid dendrimer amine (hyperbranched polymers) was prepared using mesoporous carbon nitride functionalized by melamine based dendrimer amines. This adsorbent was denoted MDA-MCN-1. The process was stepwise synthesis and hard-templating method using mesoporous silica SBA-15 as a template. Cyanuric chloride and N,N-diisopropylethylamine (DIPEA, Merck) were used for function...
[ 8 ] - Application of Hydrothermal and Non-Hydrothermal TiO2 Nanoporous Materials as New Adsorbents for Removal of Heavy Metal Ions from Aqueous System
Hydrothermal and non-hydrothermal spherical TiO2 nanoporous with crystalline framework were prepared by sol-gel method. The Crystalline structures, morphologies and surface texturing of materials were determined by X-ray diffraction (XRD), scanning electron microscopy (SEM) and N2 adsorption-desorption isotherms. The Hydrothermal spherical TiO2 nanoporous was found to have a narrow and strong p...
[ 9 ] - سنتز و شناسایی شبکه آلی فلزی MOF-199 دوپ شده با کاتیون های سدیم به منظور ذخیره سازی هیدروژن در دمای محیط
در طی دهه گذشته شبکه‌های آلی فلزی به طور گسترده ای به عنوان گزینه های جدیدی برای ذخیره سازی هیدروژن مورد استفاده قرار گرفته‌اند. مساحت سطح بالا و حفرات منظم این مواد را گزینه های مناسبی برای ذخیره سازی هیدروژن مطرح کرده است. در اینجا یون های سدیم به روش همزمانی وارد حفرات شبکه آلی فلزی MOF-199(Cu3(BTC)2) شده و جذب هیدروژن آن در دمای محیط اندازه گرفته شده است. شبکه آلی فلزی Na.Cu3(BTC)2با ا...
[ 10 ] - Ordered nanoporous carbon (CMK-3) coated fiber for solid-phase microextraction of benzene and chlorobenzenes in water samples
Nanoporous carbons (CMK-3) were prepared and have been used as a fiber coating for headspace solid phase microextraction (HS-SPME). The prepared materials were characterized by Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and N2 adsorption/desorption isotherms. The efficiency of the fiber was evaluated using a gas chromatography (GC) system for the extraction of benzene (B) and c...
[ 11 ] - Enhancement of CO2/CH4 Adsorptive Selectivity by Functionalized Nano Zeolite
In this work, we have modified a synthesized Y-type zeolite (Si/Al = 2.5), with three different amines to investigate of the influence of adsorbent’s surface modification on CO2 selectivity over CH4. The pristine and amine-functionalized NaY zeolites were characterized by X-ray diffraction (XRD), thermal gravimetric analysis (TGA), Fourier transform infrared (FT-IR), and N2 adsorption. The resu...
[ 12 ] - سنتز نانو حفره MCM-41 با استفاده از منبع سیلیس استخراج شده از گیاه جگن
گیاه جگن (Carex riparia) یک علف هرز بوده و یکی از پسماندهای کشاورزی به حساب می?آید. پس از استفاده از مواد آلی این گیاه به عنوان یک منبع انرژی در فرآیند احتراق، مواد بجای مانده غنی از سیلیس بوده که از لحاظ اقتصادی می?تواند یک ماده خام با ارزش جهت تولید مواد سیلیکاتی باشد. هدف این مطالعه بدست آوردن سیلیس خالص از گیاه جگن و همچنین سنتز ماده نانو حفره شش وجهی با ساختار منظم از نوع MCM-41 با استفاده...
[ 13 ] - Synthesis and Characterization of Amine-modified Mesoporous SBA-15 for Carbon Dioxide Sequestration at High Pressure and Room Temperature (RESEARCH NOTE)
Amine-modified mesoporous SBA-15 adsorbent has been prepared by impregnation method using tetraethylenepentamine. The samples of this modified SBA-15 have been characterized by small angle X-ray scattering (SAXS), Scanning electron microscopy (SEM), Nitrogen adsorption-desorption isotherm and FT-IR. The adsorption capacity of CO2 on unmodified and modified samples were measured at high pressure...
[ 14 ] - Effect of Particle Size of NaX Zeolite on Adsorption of CO2/CH4
In the present work, the nano-NaX zeolite and micro-NaX zeolite were synthesized via hydrothermal method. Then, the adsorption capacities and isotherms of pure gases CO2 and CH4 on the synthesized zeolite nanoparticles were determined at three temperatures of 288, 298 and 308 K and various pressures from 1 up to 20 bar. Adsorption capacities of CO2 on the nano-sized zeolites NaX were showed to ...
[ 15 ] - Investigation of Carbon Dioxide Adsorption on Amino-Functionalized Mesoporous Silica
Carbon dioxide (CO2) adsorption on unfunctionalized and amino-functionalized SBA-3 materials are investigated and compared in this study. The synthesized materials are characterized by various techniques such as X-ray diffraction (XRD), Brunauer-Emmet-Teller (BET) method, Fourier transform infrared (FT-IR) and Scanning electron microscopy (SEM).The isotherms of these materials have been measure...
[ 16 ] - Novel Amine Modified Nanoporous SBA-15 Sorbent for the Removal of H2S from Gas Streams in the Presence of CH4 (RESEARCH NOTE)
A new sorbent has been developed by grafting Hexamethylenetetramine on a mesoporous molecular sieve (SBA-15) by wet impregnation method. This sorbent (Hexamine/SBA-15) has been characterized using N2 physisorption, X-ray diffraction (XRD) at low angles (2θ°) and FT-IR. To investigate the H2S removal capacity of this adsorbent from CH4-containing gas mixtures, the breakthrough tests have been pe...
[ 17 ] - Synthesis of Ethylenediamine-modified Ordered Mesoporous Carbon as a New Nanoporous Adsorbent for Removal of Cu(II) and Pb(II) Ions from Aqueous Media
The mesoporous carbon (CMK-3) functionalized with ethylenediamine (EDA) has been synthesized (CMK-3-EDA) and applied as a new mesoporous adsorbent for removal of Cu(II) and Pb(II) cations from aqueous solutions. Nitrogen adsorption–desorption measurements (BET) show that surface area, pore size and pore volume of CMK-3 were significantly changed after amine modification. The BET surface area an...
[ 18 ] - Aqueous Cadmium Ions Removal by Adsorption on APTMS Grafted Mesoporous Silica MCM-41 in Batch and Fixed Bed Column Processes
Highly ordered mesoporous MCM-41silica with hexagonal structure was synthesized using extracted amorphous silica from sedge (Carex riparia) ash. Obtained mesoporous materials functionalized by 3-(Aminopropyl) trimethoxysilane (APTMS) and their structures characterized by means of X-ray diffraction (XRD), nitrogen adsorption-desorption, thermogravimetric analysis (TGA) and Fourier transform infr...
[ 19 ] - Modified Nanoporous Carbon Material for Anionic Dye Removal from Aqueous Solution
In this study, the adsorption behavior of anionic dyes from aqueous solution onto mesoporous carbon material (CMK-1) and modified with polymer (PANI/CMK-1) has been investigated as a function of parameters such as adsorbent dose (0.08-0.8 g/L), solution pH 3–10, contact time and initial concentration (10-100 mg/L). The influence of these parameters on the adsorption capacity has been studied us...
[ 20 ] - Synthesis and Characterization of a Novel Modified ANA Zeolite Membrane
A Novel modified Analcime (Na16 (Al16Si32O96) •16H2O) zeolite with a new molar ratio have been successfully synthesized. In order to investigate the role of the template, Different samples were synthesized with and without Tetramethylammoniumhydroxide (TMAOH) template through hydrothermal method. Different synthesis times (24, 36 and 72 hours) and molar ratios have been utilized. The optimum sa...
[ 21 ] - سنتز و شناسایی CNT@MOF-199 به منظور افزایش جذب گاز CO2
در مطالعه پیش رو، شبکه های فلزی آلی MOF-199 و کامپوزیت هیبریدی CNT@MOF-199 سنتز شد. جاذب های سنتز شده با روش های شناسایی معمول مانند فناوری جذب و اجذب نیتروژن(BET)، پراش پرتو ایکس (XRD)، اسپکتروسکوپی فروسرخ تبدیل فوریه (FT-IR) و میکروسکوپ الکترونی روبشی (SEM) بررسی و سنتز ترکیبات موردنظر تأیید شد. شبکه های فلزی آلی MOF-199 با ده درصد وزنی نانولوله های کربنی چند دیواره هیبرید شد. برخی پارامت...
نویسندگان همکار