The synthesis of Al-MCM-41 from volclay — A low-cost Al and Si source

Adjdir, Mehdi; Ali-Dahmane, Tewfik; Friedrich, Frank; Scherer, Torsten; Weidler, Peter G.

doi:10.1016/j.clay.2008.11.009

Cited by 40 publications

(16 citation statements)

References 18 publications

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“…4, an arm is also visible after the sharp peaks for all the samples, which probably indicates interparticle pores. Similar results were obtained by Yang [20] and Adjdir [21] in their studies. Thermogravimetry applied to characterization 915 Figure 5 shows SEM photographs of FA-derived F-MCM-41 materials (calcined).…”

Section: Fa-based Mcm-41supporting

confidence: 90%

Thermogravimetry applied to characterization of fly ash-based MCM-41 mesoporous materials

Majchrzak‐Kucęba

2011

J Therm Anal Calorim

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The thermogravimetry (TG) was used for characterization of the fly ash (FA)-based MCM-41 mesoporous materials. MCM-41 mesoporous materials were synthesized using silica extracts from different FA. The synthesis of MCM-41 from FA was carried out by the hydrothermal method using the supernatants of coal FA (in the form of sodium silicate) and cationic cetyltrimethylammonium bromide (CTAB) surfactants as the structuredirecting agents. On the basis of the data obtained from the TG analysis, thermal behaviour of FA-based MCM-41 mesoporous materials was assessed. This study has established the range of temperatures corresponding to the desorption of water, decomposition of the surfactant and condensation of silanol, thereby making the overall quality assessment of FA-based MCM-41 mesoporous materials.

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Section: Fa-based Mcm-41supporting

confidence: 90%

Thermogravimetry applied to characterization of fly ash-based MCM-41 mesoporous materials

Majchrzak‐Kucęba

2011

J Therm Anal Calorim

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“…[26][27][28] Extensive clay accumulation occurs in low-grade sylvinite ores, such as those mined from salt lakes in Qaidam Basin of Qinghai, northwestern China. The possibility of preparing mesoporous silica from low-cost natural clay minerals has been explored because of similarities between the structural 60 units of the latter and those of mesoporous materials.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of SBA-15 encapsulated ammonium molybdophosphate using Qaidam natural clay and its use in cesium ion adsorption

Sun

Zhang

et al. 2015

RSC Adv.

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The ordered hexagonal mesoporous silica (SBA-15) encapsulated ammonium molybdophosphate (AMP) was successfully synthesized using low-grade natural clay from Qaidam Basin as silica and aluminum source, through a one-pot synthesis method. The final product was fully characterized, which indicated that the composite material had better AMP dispersion and immobilization in the mesoporous structure of SBA-15. The adsorption capacity of the final product for removing cesium ions in solution was also 10 investigated. Results suggested that Qaidam natural clay is a promising low-cost precursor for the production of mesoporous silicate support, and the final composite material is effective for the adsorption of cesium ions from solution containing some other alkali metal ions. 65 consideration in potassium recovery processes. Therefore, the primary objective of the present work is to develop an easily accessible one-pot method for synthesis of composite material AMP/SBA-15 from natural clay which were collected directly from a salt lake in Qaidam Basin, Qinghai, and denoted QHS. 70 The adsorption capacity of the final product obtained in this work for removing cesium ions in solution was also investigated Experimental SectionMaterials A raw representative sample of clay (QHS) was collected from 75

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“…In particular, the possibility of preparing mesoporous aluminosilicates from low-cost natural aluminosilicate clay minerals has been explored because of similarities between the abundance and structural units of the latter and those of mesoporous materials. Attapulgite (Yang et al, 2010), halloysite (Xie et al, 2014), saponite (Linssen et al, 2002), and volclay (Adjdir et al, 2009) have all shown significant potential use as mesoporous aluminosilicate precursors.…”

Section: Introductionmentioning

confidence: 99%

Direct synthesis of mesoporous aluminosilicate using natural clay from low-grade potash ores of a salt lake in Qinghai, China, and its use in octadecylamine adsorption

Sun

Zhang

Wang

et al. 2015

Applied Clay Science

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The synthesis of Al-MCM-41 from volclay — A low-cost Al and Si source

Cited by 40 publications

References 18 publications

Thermogravimetry applied to characterization of fly ash-based MCM-41 mesoporous materials

Thermogravimetry applied to characterization of fly ash-based MCM-41 mesoporous materials

Synthesis of SBA-15 encapsulated ammonium molybdophosphate using Qaidam natural clay and its use in cesium ion adsorption

Direct synthesis of mesoporous aluminosilicate using natural clay from low-grade potash ores of a salt lake in Qinghai, China, and its use in octadecylamine adsorption

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