A simple synthesis of well-ordered super-microporous aluminosilicate

Yu, Lin; Lin, Hong Ping; Mou, Chung‐Yuan

doi:10.1016/j.micromeso.2004.08.015

Cited by 32 publications

(21 citation statements)

References 23 publications

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“…The gel was aged at room temperature for 16 hours and dried at ambient temperature before subjected to calcination treatment at 200 °C for 4 hours. Several other studies have reported the synthesis of aluminosilicates from a variety of raw materials, such as sodium silicate and aluminum nitrate 5 , potassium metoxy silicate (K 2 O.SiO 2 ) and Al(NO 3 ) 3 17 , Al(NO 3 ) 3 and TEOS 18 , sodium silicate and sodium aluminate 19 .…”

Section: Introductionmentioning

confidence: 99%

Characteristics of aluminosilicates prepared from rice husk silica and aluminum metal

Simanjuntak

Sembiring

Manurung

et al. 2013

Ceramics International

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This study investigated the use of electrochemical method to prepare aluminosilicates from rice husk silica and aluminum metal. The aluminosilicate precursors were characterized using Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FTIR) spectroscopy. The precursors were subsequently sintered at 700-1400 °C and their microstructures and phase compositions were characterized. Results showed that the proposed method could be used to prepare aluminosilicates with high uniformity in terms of surface morphology and the particle size with mullite and quartz as the major phases formed.

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Section: Introductionmentioning

confidence: 99%

Characteristics of aluminosilicates prepared from rice husk silica and aluminum metal

Simanjuntak

Sembiring

Manurung

et al. 2013

Ceramics International

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“…in catalysis and ion exchange. The heteropolyhedral structure type of penkvilksite, Na 2 TiSi 4 O 11 Á2H 2 O, which is, at the same time, layered and microporous, has been a model for the synthesis of several isotypic structures (Lin et al, 1997;Liu et al, 1997;Lin & Rocha, 2004. Compared with microporous monopolyhedral frameworks, like those of zeolites, the presence in the framework of higher coordination polyhedra makes the microporous heteropolyhedral structures more suitable for tuning properties via chemical composition [cf.…”

Section: Commentmentioning

confidence: 99%

Penkvilksite-2O: Na₂TiSi₄O₁₁·2H₂O

Cadoni

Ferraris

2008

Acta Crystallogr C

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The crystal structure of synthetic penkvilksite-2O, disodium titanium tetrasilicate dihydrate, Na(2)TiSi(4)O(11).2H(2)O, a microporous titanosilicate, confirms the major features of a previous model that had been obtained by order-disorder (OD) theory from the known structure of penkvilksite-1M. An important difference from the previous model involves the hydrogen bonding of the water molecule which, on the basis of a Raman spectrum and the finding of only one of the two H atoms, is proposed to be disordered about a fixed O-H direction. The structure of penkvilksite-2O is based on (100) silicate layers linked by isolated TiO(6) octahedra to form a heteropolyhedral framework. The layer is strongly corrugated, based on interlaced spiral chains, and is crossed by two different channels that have an effective channel width of about 3 A.

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“…Unfortunately, it is difficult to form well-ordered supermicroporous structures owing to their poor self-assembly ability[6–8]. In order to solve this problem, a variety of methods have been adopted, such as pore-opening size tailoring[9], high-temperature treatment with stabilizer[10], composite surfactant templating[11–13], and elaborately designed surfactant templating methods[14–16]. Among them, the composite surfactant templating method is more acceptable because of the simple synthesis process and commercially available reagents.…”

Section: Introductionmentioning

confidence: 99%

“…Among them, the composite surfactant templating method is more acceptable because of the simple synthesis process and commercially available reagents. Lin et al[11] reported the synthesis of ordered supermicroporous aluminosilicate by using short-chain decyltrimethyl ammonium bromide and butanol as the mixing templating agents. The introduction of butanol significantly improved the regularity of the materials, because it functioned as a co-surfactant in the palisadelayer to decrease the interfacial curvature and elongate the micelles of decyltrimethyl ammonium bromide.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of ordered lamellar supermicroporous silica with rigid neutral and long-chain cationic composite templating route

et al. 2019

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Using a mixture of neutral primary amine dehydroabietylamine (DHAA) and long-chain cetyltrimethyl ammonium bromide (CTAB) as the template, ordered lamellar supermicroporous silicas were synthesized with NaOH as the base source and tetraethylorthosilicate (TEOS) as the silica source. The concentrations of DHAA, CTAB, and NaOH in the synthesis system had great effects on the structural properties of the samples. When the molar ratio of components was nTEOS:nCTAB:nDHAA:nNaOH:nH 2 O = 1:0.114:0.00457:0.5:60, the material showed a lamellar phase with the highest ordering degree. By adding only a trace amount of DHAA into the synthesis system, the structure of the samples could be transformed from cubic phase to lamellar phase, since the added DHAA solubilized in CTAB micelles to change the effective surfactant ion pair packing parameter. The dosage of CTAB should be moderate; too high or too low will decay the ordering degree of the lamellar structure.A much higher concentration of NaOH resulted in an ethanol-rich solvent in which the DHAA did not solubilize in the micelles of CTAB, but adsorbed at the hydrophilic headgroup–solvent interface. Accordingly, a structural transformation from lamellar phase to hexagonal phase occurred.

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A simple synthesis of well-ordered super-microporous aluminosilicate

Cited by 32 publications

References 23 publications

Characteristics of aluminosilicates prepared from rice husk silica and aluminum metal

Characteristics of aluminosilicates prepared from rice husk silica and aluminum metal

Penkvilksite-2O: Na₂TiSi₄O₁₁·2H₂O

Synthesis of ordered lamellar supermicroporous silica with rigid neutral and long-chain cationic composite templating route

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A simple synthesis of well-ordered super-microporous aluminosilicate

Cited by 32 publications

References 23 publications

Characteristics of aluminosilicates prepared from rice husk silica and aluminum metal

Characteristics of aluminosilicates prepared from rice husk silica and aluminum metal

Penkvilksite-2O: Na2TiSi4O11·2H2O

Synthesis of ordered lamellar supermicroporous silica with rigid neutral and long-chain cationic composite templating route

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Penkvilksite-2O: Na₂TiSi₄O₁₁·2H₂O