نتایج جستجو برای: surface complexation

تعداد نتایج: 641070  

Journal: :آب و خاک 0
محمد حسین داودی رسول راهنمائی محمد جعفر ملکوتی

abstract phosphate is an essential element for plants, animals, and human. mobility and availability of phosphate in the natural systems is controlled by the adsorption-desorption and dissolution-precipitation reactions. iron (hydr)oxides including goethite play an important role in phosphate adsorption reactions in soil. surface area, crystallinity, and morphology of iron (hydr)oxides are the ...

Journal: :Chemical communications 2015
Yiming Zhang Baiyan Li Rajamani Krishna Zili Wu Dingxuan Ma Zhan Shi Tony Pham Katherine Forrest Brian Space Shengqian Ma

The introduction of the combination of open metal site (OMS) and π-complexation into MOF has led to very high ethylene-ethane adsorption selectivity at 318 K, as illustrated in the context of MIL-101-Cr-SO3Ag. The interactions with ethylene from both OMS and π-complexation in MIL-101-Cr-SO3Ag have been investigated by in situ IR spectroscopic studies and computational calculations, which sugges...

2014
Gunilla Herting Tao Jiang Carin Sjöstedt Inger Odnevall Wallinder Christophe Egles

Unique quantitative bioaccessibility data has been generated, and the influence of surface/material and test media characteristics on the elemental release process were assessed for silicon containing materials in specific synthetic body fluids at certain time periods at a fixed loading. The metal release test protocol, elaborated by the KTH team, has previously been used for classification, ra...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
mahmood payehghadr mehdi taghdiri akram zamani neda hesaraki

the complexation reaction between 1,13-bis(8-quinolyl)-1,4,7,10,13-pentaoxatridecane (kryptofix5) ligand with zn2+, ni2+, co2+, pb2+, mn2+ and cu2+ ions were studied conductometrically in different acetonitrile-nitromethane (an-nm) and acetonitrile-methanol (an-meoh) mixtures. the formation constants of the resulting 1:1 complexes were calculated from the computer fitting of the molar conductan...

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