نتایج جستجو برای: ion exchange catalyst

تعداد نتایج: 422518  

Journal: :research in molecular medicine 0
zahra moradi nebrin immunology research center, faculty of medicine, tabriz university of medical sciences, tabriz, iran jafar majidi tabriz autonomous university of medical sciences, tabriz university of medical sciences, tabriz, iran leili aghebati maleki immunology research center, faculty of medicine, tabriz university of medical sciences, tabriz, iran tohid kazemi department of immunology, faculty of medicine, tabriz university of medical sciences, tabriz, iran jalal abdolalizadeh department of immunology, faculty of medicine, tabriz university of medical sciences, tabriz, iran somaieh dadashi immunology research center, faculty of medicine, tabriz university of medical sciences, tabriz, iran

background: the ability of polyclonal antibodies to react with many epitopes of an antigen makes them valuable reagents in research and diagnosis. the aim of this study was purification of mouse igg2a and production of polyclonal antibody against purified mouse igg2a subclass. materials and methods: mouse igg2a was purified by proa affinity. verification method of the purified antibody was sds-...

In this study, ion exchange nanocomposite membranes was prepared by addition of Mg(OH)2 nanoparticles to a blend containing sulfonated polyphenylene oxide and sulfonated polyvinylchloride via a simple casting method. Magnesium hydroxide nanoparticles were synthesized via a facile sono-chemical reaction and were selected as filler additive in fabrication of ion exchange nanocomposite membranes. ...

2014
Yaal Lester Dror Avisar Hani Gnayem Yoel Sasson Michal Shavit Hadas Mamane

This study demonstrates the potential of a newBiOCl0.875Br0.125 photocatalyst to degrade pharmaceuticals in water (i.e., carbamazepine (CBZ), ibuprofen (IBF), bezafibrate (BZF), and propranolol (PPL)), under simulated solar irradiation. Different parameters were examined through their influence on CBZ degradation. Increasing the catalyst concentration up to 500 mg/L increased CBZ degradation ra...

2015
Ceyda Yaman Gönül Gündüz

In this study, the heterogeneous Fenton-like degradation of Reactive Red 141 (RR141) in water was investigated over iron containing ZSM-5 zeolite (Si/Al = 42) prepared by ion-exchange (FeZSM-5 (42)). The catalyst was characterized by XRD, SEM, FTIR, TPR, and ICP-AES measurements. The effects of the initial concentrations of the dye and H2O2, the initial pH of the solution, catalyst loading, and...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Dong Wang John T Groves

A series of cationic cobalt porphyrins was found to catalyze electrochemical water oxidation to O2 efficiently at room temperature in neutral aqueous solution. Co-5,10,15,20-tetrakis-(1,3-dimethylimidazolium-2-yl)porphyrin, with a highly electron-deficient meso-dimethylimidazolium porphyrin, was the most effective catalyst. The O2 formation rate was 170 nmol · cm(-2) · min(-1) (k(obs) = 1.4 × 1...

2005
Christopher W. Moore Jun Li Paul A. Kohl

Microfabricated fuel cells have been designed and constructed on silicon integrated circuit wafers using many processes common in integrated circuit fabrication, including sputtering, polymer spin coating, reactive ion etching, and photolithography. Proton exchange membranes PEMs for an “integrated” fuel cell have been made by low-temperature, plasma-enhanced chemical vapor deposition of silico...

2015
K. Dastafkan M. Sadeghi A. Obeydavi

The decontamination reactions of O,S-diethyl methyl phosphonothiolate, as an agricultural organophosphorous pesticide onto 20 wt% loaded manganese dioxide nanoparticles-silver-Y zeolite as a nanocomposite catalyst in different solvents, were evaluated and monitored by means of gas chromatography–flame ionization detector and gas chromatography–mass spectrometry. Prior to the reaction, the catal...

Afsaneh Nouri Maryam Mazloumi Mohammad Ghorbanpour, Samaneh lotfiman

The aim of this study was to synthesize Ag-nanoclay composite by solid ion exchange, then characterize, and evaluate the antibacterial activity. This newly introduced ion exchange is a simple and low cost technique, which provides a quicker method. Without chemical treatment, nanoclay was subjected to an ion exchange process in media containing molten salt of silver at 300 and 400 °C and at dif...

Upgrading of cracked PFO (Pyrolysis fuel oil) for production of fuels, such as gasoline and light gasoil, was carried out in a semi batch reactor. Two different kinds of mesoporous and microporous catalysts, MCM-41 and ZSM-5, were used. Modification methods, such as ion exchange and impregnation with Fe and Ti, were done for tuning the acidity of the catalyst. XRD, FT-IR, and XRF analyzes were ...

Journal: :iranian chemical communication 2015
hadi jabbari jabbar khalafy peyman najafi moghadam

a most effective and less energy demanding method of producing fatty esters, diol esters, by esterifying fatty acids, with neopentyl and ethylenglycol alcohols in the presence of an acidic ion exchange resin catalyst(polyestyrendivinylbenzensulfated) was investigated at elevated temperature. in this process an azeotroping agent, toluene, was used to facilitate continuous removal of water by dis...

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