Hydrothermal synthesis of magadiite

Wang, Yuh-Ruey; Wang, Sea-Fue; Chang, Li-Chung

doi:10.1016/j.clay.2006.02.001

Cited by 47 publications

(35 citation statements)

References 10 publications

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“…Magadiite could also be prepared using N,N,N′,N′‐tetramethylurea as a template 8. To reduce the cost of synthesis, water glass, pretreated by acids, was also used by Yuh‐Ruey9 in the synthetic process. In order to enhance its commercial potential, the synthesis of magadiite may be improved, for example, by decreasing the cost of raw materials.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of magadiite using a natural diatomite material

Wang

Shang

Zhu

et al. 2009

J of Chemical Tech & Biotech

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BACKGROUND: This study investigated the synthesis of magadiite from a natural diatomite material. The influence of key reaction parameters, including reaction time, temperature and molar ratios of Na 2 O/SiO 2 and H 2 O/Na 2 O, on the formation of magadiite were investigated. The as-synthesized magadiite was characterized by X-ray powder diffraction, scanning electron microscopy, infrared spectroscopy, thermogravimetry and differential thermal analysis.

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Section: Introductionmentioning

confidence: 99%

Synthesis of magadiite using a natural diatomite material

Wang

Shang

Zhu

et al. 2009

J of Chemical Tech & Biotech

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“…Table 1 summarizes the main results of [13,16]. However, after delamination and calcination, the specific surface area of De-Maga increases over a magnitude and reaches 637 m 2 /g.…”

Section: Resultsmentioning

confidence: 94%

“…Magadiite was synthesized according to [13,16]. Briefly, silica gel Ludox-40, sodium hydroxide, and deionized water were mixed at the ratio of 9SiO 2 : 2NaOH : 75H 2 O.…”

Section: Synthesis Of Magadiitementioning

confidence: 99%

Delamination of lamellar phyllosilicate Magadiite

Bi¹,

Blanchard²,

Lambert³

et al. 2010

Chin. Sci. Bull.

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66-4 FIELD Section Title:Surface Chemistry and Colloids Research Institute of Petroleum Processing, SINOPEC, Beijing, Peop. Rep. China. FIELD URL: written in EnglishIn this paper, a new delaminated mesoporous material was prepd. by swelling the lamellar phyllosilicate Magadiite using cetyltrimethylammonium bromide and tetrapropylammonium hydroxide soln., followed by delamination under the cavitation of ultrasonic treatment. Various characterization tools including XRD, N2 adsorption, NMR, IR, SEM and TEM were employed to observe its structure and morphol. XRD results show that the delaminated material has no long-range cryst. order. Furthermore, not only high surface area is obtained, but almost half of it is external surface. The observation for the morphol. further reveals that it is made up of the random stacking of single or few layers. All these characters show that this delaminated mesoporous material meets the requirements for application as support in the hydrotreatment of heavy mols. [on SciFinder(R)

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“…Nevertheless, on the basis of various diffraction (XRD) and spectroscopic techniques (NMR, IR and Raman), it has been assumed that each silicate layer in Na-magadiite may consist of three silicate sheets with a combination of five-and six-membered rings. 29,30 All these layered silicates (kanemite, ilerite, and magadiite) [31][32][33][34] can be synthesized under conventional hydrothermal synthesis conditions using various silica sources, sodium hydroxide and water. SEM images of these layered sodium silicates are shown in Fig.…”

Section: Layered Silicatesmentioning

confidence: 99%

Reactivity and applications of layered silicates and layered double hydroxides

2014

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Layered materials, such as layered sodium silicates and layered double hydroxides (LDHs), are well-known for their remarkable adsorption, intercalation and swelling properties. Their tunable interlayers offer an interesting avenue for the fabrication of pillared nanoporous materials, organic-inorganic hybrid materials and catalysts or catalyst supports. This perspective article provides a summary of the reactivity and applications of layered materials including aluminium-free layered sodium silicates (kanemite, ilerite (RUB-18 or octosilicate) and magadiite) and layered double hydroxides (LDHs). Recent developments in the use of layered sodium silicates as precursors for the preparation of various porous, functional and catalytic materials including zeolites, mesoporous materials, pillared layered silicates, organic-inorganic nanocomposites and synthesis of highly dispersed nanoparticles supported on silica are reviewed in detail. Along this perspective, we have attempted to illustrate the reactivity and transformational potential of LDHs in order to deduce the main differences and similarities between these two types of layered materials.

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Hydrothermal synthesis of magadiite

Cited by 47 publications

References 10 publications

Synthesis of magadiite using a natural diatomite material

Synthesis of magadiite using a natural diatomite material

Delamination of lamellar phyllosilicate Magadiite

Reactivity and applications of layered silicates and layered double hydroxides

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