Aqueous solution of amine is a mature technology to selectively absorb CO2 from an industrial exhaust. Monoethanolamine (MEA) still considered as the reference and unfortunately, energy necessary desorb recycle solvent limiting its use at scale. The main cost process needed heat over 100 °C CO2. Several options decrease this expense have been including phase separation reduce volumes be treated...

Exfoliation through an ionic exchange reaction of layered silicate clays, including synthetic fluorinated mica (Mica) and natural montmorillonite (MMT), were achieved by using polyvalent amine salts as the intercalating agents. The requisite polyamine was synthesized from the epoxy/amine coupling reaction, involving a trifunctional poly(oxypropylene)-triamine (ca. 440 g/mol Mw) and diglycidyl e...

In the present study the apphcatlon of a hquld membrane for selectlve removal of HsS from gases also contannng COz was mvestlgated The hquld membrane was filled with pure methyl-di-ethanol-amme (MDEA) A theoretical model was developed to descrrbe (a) the chemical equlllbnum between the dissolved gas and MDEA m the membrane and (b) the physical equlhbnum between the solute (CO, and HsS) m the ga...

carbon dioxide is a major greenhouse gas that contributes to the global warming by more than %60. absorption has been widely used to treat high concentrations of co2 in synthesis gas production, hydrogen manufacturing, and natural gas processing. the most well established method to capture co2 is its removal by absorption into amine solutions in the presence of activators. in this research, co2...

The 3,4-methylenedioxy-methamphetamine (MDMA)-related designer drug 3,4methylenedioxyethylamphetamine (MDEA, Eve) is a chiral compound which is mainly metabolized by N-deethylation and demethylenation during phase I metabolism. The involvement of several cytochrome P450 (P450) isozymes in these metabolic steps has been demonstrated by inhibition assays using human liver microsomes. However, a c...

In the treatment of many fuel gases such as biogas, natural gas, syngas, and so on, tertiary alkanolamines play an important role in selective removal H2S with respect to CO2. The selectivity might be required for various reasons: more stringent specifications, optimize performance Claus unit, lower cost CO2 capture, on. H2S/CO2 is mainly kinetic and, a lesser extent, thermodynamic. A novel exp...

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The electrogenerated chemiluminescence (ECL) of semiconductor quantum dots (QDs) is generally believed to be independent of particle sizes or the capping agents used. Herein, we demonstrate that CdTe QDs with different sizes and stabilizers evidently exhibit different ECL behavior in aqueous solution. The ECL of CdTe QDs stabilized by 3-mercaptopropionic acid (MPA) displays two waves at potenti...

The photocurrent conversions of transition metal dichalcogenide nanosheets are unprecedentedly impressive, making them great candidates for visible range photodetectors. Here we demonstrate a method for fabricating micron-thick, flexible films consisting of a variety of highly separated transition metal dichalcogenide nanosheets for excellent band-selective photodetection. Our method is based o...