Synthesis and Characterization of Zeolite HS Using Natural Pyrophyllite as New Clay Source

Gaidoumi, Abdelali El; Benabdallah, Aziz Chaouni; Bali, Brahim El; Kherbeche, Abdelhak

doi:10.1007/s13369-017-2768-8

Cited by 24 publications

(19 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mass loss of 7.52% in the range of 85 • C to 445 • C corresponded to the elimination of structural water molecules of hydroxysodalite, indicating the formation of anhydrous hydroxysodalite Na 8 [AlSiO 4 ] 6 (OH) 2 [30]. Above 445 • C, the mass loss was 3.24%, which could be due to the decomposition of hydroxysodalite [31,32].…”

Section: Characterization Of Hydroxysodalite In Optimum Conditionsmentioning

confidence: 98%

One-Step Synthesis of Hydroxysodalite Using Natural Bentonite at Moderate Temperatures

et al. 2018

View full text Add to dashboard Cite

Ca-bentonite was used as the feedstock material for the synthesis of hydroxysodalite due to its high Al, Si content, good chemical reactivity, and natural abundance. A one-step method is proposed here to fabricate hydroxysodalite in a water bath at moderate temperature. The effects of the Na/Si molar ratio, Si/Al molar ratio, reaction time, and reaction temperature on the synthesis of hydroxysodalite have been systematically investigated here. The crystallizing phases and morphology of the synthetic products were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The results showed that the Na/Si molar ratio and reaction temperature both played important roles in controlling the degree of crystallinity of the synthetic hydroxysodalite. The Si/Al molar ratio and reaction time both affect the purity of the synthetic hydroxysodalite. Optimum conditions for synthesizing hydroxysodalite using a one-step water-bath method at moderate temperature are as follows: a Na/Si molar ratio of 12, a Si/Al molar ratio of 1.0, a reaction temperature of 90 °C, and a reaction time of 12 h.

show abstract

Section: Characterization Of Hydroxysodalite In Optimum Conditionsmentioning

confidence: 98%

One-Step Synthesis of Hydroxysodalite Using Natural Bentonite at Moderate Temperatures

et al. 2018

View full text Add to dashboard Cite

show abstract

“…e SEM images revealed a uniform particle size with a regular shape found in the prepared zeolite A sample. e commercial and synthesized zeolites' SEM images give a narrow distribution of particle size with an average crystal size of <20 µm [3,12,22]. Nevertheless, the authors did not use the computational method to clarify structure of zeolite due to sliding of silica and alumina over one another (aggregation of particles).…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 99%

“…Zeolites are hydrated aluminosilicate that is made from tetrahedral alumina (AlO 4 ) through interlinkage of oxygen atoms [1,2]. e term zeolite is derived from Greek words "Zeo" and Lithos" [3][4][5] which means boil and stone, respectively; zeolites have high ability of absorbing water and releasing it when they get heated [4]. ey have an open void with 3D crystal structure having aluminum, silicon, and oxygen coordination with active metals [5].…”

Section: Introductionmentioning

confidence: 99%

“…Currently, zeolites were synthesized from different natural sources, such as clay, kaolin, fly ash, coal, natural oxide, bauxite, feldspar, activated carbon, and other silica sources [19][20][21]. Zeolites, synthesized from natural sources, have highly porous cavities in their structure, high ionic exchange capacity, large specific surface area, low cost, and hydrophilic in nature [3,18,22]. For instance, the cost comparison of obtaining a silica and alumina source from a chemical feedstock and kaolin/metakaolin has been carried out, and the result shows that zeolite A synthesized from clay has a comparative cost advantage of 15% over a commercial chemical such as sodium silicate [1,3,15].…”

Section: Introductionmentioning

confidence: 99%

“…Zeolites, synthesized from natural sources, have highly porous cavities in their structure, high ionic exchange capacity, large specific surface area, low cost, and hydrophilic in nature [3,18,22]. For instance, the cost comparison of obtaining a silica and alumina source from a chemical feedstock and kaolin/metakaolin has been carried out, and the result shows that zeolite A synthesized from clay has a comparative cost advantage of 15% over a commercial chemical such as sodium silicate [1,3,15]. Moreover, these zeolites are cheaper and more abundant and are employed as the sole source of silica and alumina as compared to synthetic zeolites [23,24].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Short Review on Synthesis, Characterization, and Applications of Zeolites

Derbe¹,

Temesgen²,

Bitew

2021

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

The review emphasizes on synthesis, characterization, and application of zeolite. Zeolite is a hydrated aluminosilicate having a tetrahedral structural framework; it contains channels and cages which are occupied by exchangeable active metal ions and water molecules. Zeolite was synthesized through different synthesis methods, particularly, hydrothermal and green synthesis methods. The review also has tried to address the structure of zeolite such as morphology, functional group, and particle size using different characterization methods as reported via different authors. The characterization results verify that zeolite shows many unique properties such as uniform pore size, acidic properties, thermal stability, mobile extra cation, hydrophilicity, and hydrophobicity. These lead to a number of applications in catalysis, water purification, adsorption, and agriculture.

show abstract

Application of Catalysts Derived from Renewable Resources in Production of Biodiesel

Ngaosuwan

Eiad‐ua

Srifa

et al. 2022

Biodiesel Production

View full text Add to dashboard Cite

Synthesis and Characterization of Zeolite HS Using Natural Pyrophyllite as New Clay Source

Cited by 24 publications

References 48 publications

One-Step Synthesis of Hydroxysodalite Using Natural Bentonite at Moderate Temperatures

One-Step Synthesis of Hydroxysodalite Using Natural Bentonite at Moderate Temperatures

A Short Review on Synthesis, Characterization, and Applications of Zeolites

Application of Catalysts Derived from Renewable Resources in Production of Biodiesel

Contact Info

Product

Resources

About