Aging Time Effect on Porous Characteristics of Natural Mud-based Silica Prepared by Hydrothermal-Coprecipitation Route

Ubaid, Ahmed Qasim; Hidayat, Nurul; Munasir, Munasir

doi:10.1088/1757-899x/202/1/012022

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Proses aging dapat mempengaruhi banyaknya silika gel yang terbentuk. Semakin lama waktu aging, maka akan semakin banyak silika gel yang terbentuk [25]. Kelebihan asam sulfat yang ditambahkan pada pembentukan silika gel dapat menurunkan yield silka gel karena bereaksi kembali dengan silika gel yang terbentuk.…”

Section: Transmittance (%)unclassified

Pengaruh Konsentrasi Pelarut NaOH dan Waktu Aging pada Pembuatan Silika Gel dari Fly Ash Batu Bara

Batubara,

Turmuzi,

Latifah Syam

et al. 2023

J. Teknik Kimia

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Fly ash has the potential to be used as a raw material in the production of silica gel. This study aims to characterize fly ash and silica gel, determine the effect of NaOH concentration and aging time on the manufacture of silica gel, and determine the trapping power of silica gel. In this research, the production of silica gel begins with the washing of fly ash using HCl. Next, NaOH is added with varying concentrations of 1.5 N, 2.5 N, 3.5 N, and 4.5 N. The formed Na2SiO3 is then mixed with H2SO4 of 3 N concentration, with aging times of 12 hours, 15 hours, and 18 hours. The highest yield of silica gel is 49.61% at a NaOH concentration of 4.5 N and an aging time of 15 hours. The highest water vapor adsorption capacity of the silica gel is 883.00 mg/g at a NaOH concentration of 3.5 N and an aging time of 15 hours. SEM-EDX characterization results indicate a diverse morphology and size for both fly ash and silica gel. The SiO2 content in fly ash is 41.64%, while in silica gel, it is 41.42%. FTIR characterization of fly ash and silica gel reveals the presence of functional groups such as silanol (Si-O), siloxane (Si-O-Si), and hydroxyl (Si-OH) which are active sites in silica gel.

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Section: Transmittance (%)unclassified

Pengaruh Konsentrasi Pelarut NaOH dan Waktu Aging pada Pembuatan Silika Gel dari Fly Ash Batu Bara

Batubara,

Turmuzi,

Latifah Syam

et al. 2023

J. Teknik Kimia

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“…The properties of silica are affected by particle size, pore size, pore volume, and surface characteristics of the material [11]. Several methods can be utilized to form nanoparticles, such as thermal decomposition, microemulsions, co-precipitation, sol-gel, and hydrothermal.…”

Section: ■ Introductionmentioning

confidence: 99%

Synthesis of Mesoporous Silica from Palm Oil Boiler Ash (MS-POBA) with Addition of Methyl Ester Sulfonate as a Template for Free Fatty Acid Adsorption from Crude Palm Oil (CPO)

Sitohang,

Kuncaka,

Suratman

2024

Indones. J. Chem.

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The synthesis of mesoporous material by utilizing palm oil boiler ash (POBA) waste as the silica source and methyl ester sulfonate (MES) surfactant as the template for a high-porosity was investigated for free fatty acids (FFA) adsorption. The research was initiated with silica extraction from POBA by sodium hydroxide addition through the sol-gel precipitation method. Silica modification was carried out with MES surfactant and 3-aminopropyltrimethoxysilane (APTMS) as the co-structure-directing agent (CSDA) in different calcination temperatures. Mesoporous silica-POBA (MS-POBA) free template had a surface area, pore diameter, and pore volume (41.033 m2/g, 4.180 nm, and 0.250 cm3/g) lower than MS-POBA with the template (71.0147 m2/g, 7.923 nm, and 0.524 cm3/g). The ability of MS-POBA to adsorb FFA reached its optimum conditions with an adsorption time of 20 min and an adsorbent dosage of 0.24 g. The FFA removal by MS-POBA with the template was found to have higher adsorption ability, which was 35.54%, compared to the MS-POBA free template of 26.68%. The high porosity of MS-POBA with a template makes the FFA adsorption capacity of this material higher than MS-POBA free template.

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Synthesis and characterization of Fe3O4/SiO2 composite with in-situ method: TEOS as SiO2 NPs precursor

Munasir

Terraningtyas

2019

J. Phys.: Conf. Ser.

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Aging Time Effect on Porous Characteristics of Natural Mud-based Silica Prepared by Hydrothermal-Coprecipitation Route

Cited by 3 publications

References 11 publications

Pengaruh Konsentrasi Pelarut NaOH dan Waktu Aging pada Pembuatan Silika Gel dari Fly Ash Batu Bara

Pengaruh Konsentrasi Pelarut NaOH dan Waktu Aging pada Pembuatan Silika Gel dari Fly Ash Batu Bara

Synthesis of Mesoporous Silica from Palm Oil Boiler Ash (MS-POBA) with Addition of Methyl Ester Sulfonate as a Template for Free Fatty Acid Adsorption from Crude Palm Oil (CPO)

Synthesis and characterization of Fe3O4/SiO2 composite with in-situ method: TEOS as SiO2 NPs precursor

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