Dabco/silica sol-gel hybrid material.: The influence of the morphology on the CdCl2 adsorption capacity

被引：27

作者：

Arenas, LT ^{[1
]}

Vaghetti, JCP ^{[1
]}

Moro, CC ^{[1
]}

Lima, EC ^{[1
]}

Benvenutti, EV ^{[1
]}

Costa, TMH ^{[1
]}

机构：

[1] UFRGS, Inst Quim, LSS Lab Solidos & Superficies, BR-91501970 Porto Alegre, RS, Brazil

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 06期

关键词：

composite materials; electron microscopy; microstructure; polymers; porosity; sol-gel preparation; surfaces;

D O I：

10.1016/j.matlet.2003.07.031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two hybrid 3-n-propyl-1-azonia-4-azabicyclo[2.2.2]octanechloride xerogels with organic content of 0.97 and 1.87 were successfully prepared using the sol-gel method, and they showed promising results as metal sorbents for cadmium from aqueous solutions. The morphological properties of the xerogels were markedly influenced by the organic content. The xerogel with lower organic content showed a higher porosity and pores with a larger average size. This sample presented the higher metal adsorption capacity (0.7 mmol g(-1)). (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：895 / 898

页数：4

共 28 条

[1]

ARENAS LT, IN PRESS J SOL GEL S

[2]

ARENAS LT, IN PRESS J BRAZ CHEM

[3] THE DETERMINATION OF PORE VOLUME AND AREA DISTRIBUTIONS IN POROUS SUBSTANCES .1. COMPUTATIONS FROM NITROGEN ISOTHERMS [J].

BARRETT, EP ;

JOYNER, LG ;

HALENDA, PP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1951, 73 (01) :373-380

[4] COMPLEXING AND CHELATING-AGENTS IMMOBILIZED ON SILICA-GEL AND RELATED MATERIALS AND THEIR APPLICATION FOR SORPTION OF INORGANIC SPECIES [J].

BIERNAT, JF ;

KONIECZKA, P ;

TARBET, BJ .

SEPARATION AND PURIFICATION METHODS, 1994, 23 (02) :77-348

[5] Generation of microporosity in a hybrid material. Access to pillared amorphous organosilicate [J].

Boury, B ;

Corriu, RJP ;

Le Strat, V .

CHEMISTRY OF MATERIALS, 1999, 11 (10) :2796-2803

[6] Selective adsorption of Hg2+ by thiol-functionalized nanoporous silica [J].

Brown, J ;

Mercier, L ;

Pinnavaia, TJ .

CHEMICAL COMMUNICATIONS, 1999, (01) :69-70

[7] Adsorption of gases in multimolecular layers [J].

Brunauer, S ;

Emmett, PH ;

Teller, E .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1938, 60 :309-319

[8] Enhanced ionic recognition by a functionalized mesoporous sol-gel: Synthesis and metal ion selectivity of diaminoethane derivative [J].

Burleigh, MC ;

Dai, S ;

Barnes, CE ;

Xue, ZL .

SEPARATION SCIENCE AND TECHNOLOGY, 2001, 36 (15) :3395-3409

[9] Utilization of agro-residues (rice husk) in small waste water treatment plans [J].

Daifullah, AAM ;

Girgis, BS ;

Gad, HMH .

MATERIALS LETTERS, 2003, 57 (11) :1723-1731

[10] Adsorption of Cr(III) and Fe(III) on an inorganic-organic silicon hybrid surface [J].

de Farias, RF ;

de Souza, AG ;

Nunes, LM ;

Cardoso, VD .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2002, 211 (2-3) :295-298

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