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Effective enhancement of CO2 capture performance of solid amine adsorbents prepared from diethylenetriamine-modified mesoporous silica: optimisation experiments and kinetic calculations DETA loading into MCM-48-C resulted in a more uniform distribution of DETA due to the presence of surfactant inside the carrier. Solid amine adsorbents ads

Huipeng Zhao & al. investigate the impregnation of diethylenetriamine (DETA) into porous silica to enhance CO2 capture performance. Amine concentrations, temperatures and pressures, were investigated, achieving a maximal capture of 417.45mg/g.

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A concise one-pot synthesis of flavones by cyclisation of o-(alkynon-1-yl)phenols A concise one-pot process for producing flavones and 2-alkyl-4H-benzopyran-4-one from a variety of salicylic acylbenzotriazoles is described. The in situ generation of o-(alkynon-1-yl)phenols in the i...

Khalid Widyan presents a novel one-pot synthesis of flavones and 2-alkyl-4H-benzopyran-4-one. He utilizes the ionic liquid [BMIM][BF₄] to provides a favourable reaction medium which increases the selectivity and yield of the syntheses

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Details: www.publish.csiro.au/CH/CH25044

Investigation of CO2 Adsorption on Triethylenetetramine Modified Adsorbents of TETA(n)/Zr-TSCD In the present study, a new type of material of Zr-TSCD was first synthesized and modified with different amounts of triethylenetetramine (TETA). The properties of the adsorbents were characterised wi...

Fan-Ming Yang & Co. Present a new type of Zr-TSCD (TSCD=Na3C6H5O72*H2O) material which, when functionalized with triethylenetetramine, displays enhanced CO2 adsorption, achieving stable selective adsorption rates as high as 175.1mg/g.

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Details: www.publish.csiro.au/CH/CH19541