A novel work was performed for fabrication and modification of composite nanofiltration (NF) membrane by polymerization reaction between polyethyleneimine (PEI) and triphthaloyldechloride (TPC). the main purpose of this work was water treatment. polysulfone was applied as a main polymer of substrate. The result of reaction between PEI and TPC would be formation of polyamide layer on the membran...

In this work, the reaction mechanism in atomic layer deposition (ALD) process of AlF3 thin films is studied with situ quartz crystal microbalance and quadrupole mass spectrometer. The depositions are done AlCl3 TiF4 as precursors. Similar to many metal fluoride deposited by ALD, growth rate strongly temperature dependent. addition, at low temperatures, exceptionally high for a traditional ALD p...

the oxidative coupling of methane (ocm) performance over na-w-mn/sio2 at elevated pressures has been simulated by adaptive neuro fuzzy inference system (anfis) using reaction data gathered in an isothermal fixed bed microreactor. in the designed neuro fuzzy models, three important parameters such as methane to oxygen ratio, gas hourly space velocity (ghsv), and reaction temperature were conside...