Energetics of the interaction of ethylamine and acidic sites of immobilized complexes on SH-modified silica gel
作者： J.A. Simoni , C. Airoldi , E.F.S. Vieira , A.R. Cestari
DOI: 10.1016/S0927-7757(99)00494-X
关键词: Amine gas treating 、 Ethylamine 、 Inorganic chemistry 、 Silica gel 、 Calorimetry 、 Aqueous solution 、 Adsorption 、 Titration 、 Physical chemistry 、 Chemistry 、 Monolayer
摘要: Abstract Interactions of ethylamine from aqueous solutions on SilSM [thiol-modified silica gel containing complexed cations, where M=Ag(I), Hg(II), Zn(II), Cu(II) and Ni(II)] have been investigated. Using an isoperibolic calorimetric titration technique, the enthalpies evolved at different surface coverages were obtained with corresponding interacting amount ( n int(i) ) determined by using isothermal specially developed for this purpose. The maximum capacities interaction N s ), molar interactions (Δ H m integral a monolayer mon determined. Δ values, taking into account investigation strengths between SilSM, suggest that Pearson concept is predominant mechanism in behavior SilSM/amine adsorption processes. It shown values are not constant coverage, thus general tendency found earlier has confirmed.
elsevier.com
sci-hub.se 参考文章(31)
R. A SHALLIKER, L RINTOUL, G. K DOUGLAS, S. C RUSSELL, A sol–gel preparation of silica coated zirconia microspheres as chromatographic support materials Journal of Materials Science. ,vol. 32, pp. 2949- 2955 ,(1997) , 10.1023/A:1018641020932
Daniele Cauzzi, Mirco Costa, Luca Gonsalvi, Maria Angela Pellinghelli, Giovanni Predieri, Antonio Tiripicchio, Roberto Zanoni, Anchoring rhodium(I) on thiourea-functionalized silica xerogels and silsesquioxanes part II. Matrix effects on the selectivity in the hydroformylation of styrene Journal of Organometallic Chemistry. ,vol. 541, pp. 377- 389 ,(1997) , 10.1016/S0022-328X(97)00089-2
Bogusław Buszewski, Renata M. Gadzała-Kopciuch, Michał Markuszewski, Roman Kaliszan, Chemically Bonded Silica Stationary Phases: Synthesis, Physicochemical Characterization, and Molecular Mechanism of Reversed-Phase HPLC Retention Analytical Chemistry. ,vol. 69, pp. 3277- 3284 ,(1997) , 10.1021/AC9612032
Claudio Airoldi, Afonso S. Gonçalves, Immobilized 3-aminopyridine on silica: Adsorption of some metal (II) chlorides in non-aqueous solutions web science. ,vol. 28, pp. 199- 208 ,(1987) , 10.1016/0166-6622(87)80184-1
Claudio Airoldi, Pedro L.O. Volpe, Josefa M.M. de M. Lira, Interactions of antimony(III) halides with amides and tetramethylurea in 1,2-dichloroethane solution Polyhedron. ,vol. 2, pp. 1125- 1129 ,(1983) , 10.1016/S0277-5387(00)84346-6
C Airoldi, Chemisorption of divalent cations onN-(2-pyridyl)acetamide immobilized on silica gel — a thermodynamic study The Journal of Chemical Thermodynamics. ,vol. 27, pp. 623- 632 ,(1995) , 10.1006/JCHT.1995.0064
Mohamed E Mahmoud, Ezzat M Soliman, Silica-immobilized formylsalicylic acid as a selective phase for the extraction of iron(III). Talanta. ,vol. 44, pp. 15- 22 ,(1997) , 10.1016/S0039-9140(96)01960-1
Claudio Airoldi, Yoshitaka Gushikem, José G.P. Espínola, Adsorption of divalent cations on the silica-gel surface modified with N-(2-aminoethyl-3-aminopropyl) groups Colloids and Surfaces. ,vol. 17, pp. 317- 323 ,(1986) , 10.1016/0166-6622(86)80256-6
Claudio Airoldi, Luiz S. Santos, Some features of the interaction of silica gel with organic bases Thermochimica Acta. ,vol. 104, pp. 111- 119 ,(1986) , 10.1016/0040-6031(86)85189-9
Otto M. Bade, Richard Blom, Martin Ystenes, CHROMIUM ALLYLS ON SILICA : A STUDY OF STRUCTURE AND REACTIVITY Organometallics. ,vol. 17, pp. 2524- 2533 ,(1998) , 10.1021/OM970921R