Fabrication of mesoporous silica nanoparticles by sol gel method followed various hydrothermal temperature

Purwaningsih, Hariyati; Pratiwi, Vania Mitha; Purwana, Siti Annisa Bani; Nurdiansyah, Haniffudin; Rahmawati, Yenny; Susanti, Diah

doi:10.1063/1.5030274

Cited by 11 publications

(12 citation statements)

References 3 publications

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“…The peaks of HKUST-1 were in well accordance with the previous study by Mohanadas et al, (2021) [37] and broad peak for SiO 2 matched well with previous report by Purwaningsih et al, (2018). [38] Figure 1. FTIR of HKUST-1 and HKUST-1@SiO 2 .…”

Section: Xrd Analysismentioning

confidence: 99%

A Promising HKUST‐1@SiO₂ Composite for the Effective Adsorption of Chlorpyriphos from Aqueous Medium

et al. 2023

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This study focuses on the preparation of HKUST-1@SiO 2 composite and its application as an adsorbent for the removal of chlorpyriphos from water environment. For studying the physical properties, synthesized HKUST-1@SiO 2 was characterized using FTIR, XRD, BET, FE-SEM and EDS. Characterization results indicated that the interaction of HKUST-1 with SiO 2 resulted in improvement of various physicochemical properties. The integration of HKUST-1 and SiO 2 resulted in improved adsorption of chlorpyrifos, where maximum 85 % removal was obtained at 30 °C. The adsorption data was best fitted into Langmuir isotherms, and it was in well accordance with pseudo second order kinetic model. High adsorption efficiency of the composite is related to its high pore volume which results in high number of adsorption sites on silica surface for the attachment of various functional groups present in chlorpyriphos.

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Section: Xrd Analysismentioning

confidence: 99%

A Promising HKUST‐1@SiO₂ Composite for the Effective Adsorption of Chlorpyriphos from Aqueous Medium

et al. 2023

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“…The observations made by analyzing SEM results using silica samples from sand sources also have non-uniform particle sizes and tend to clump (Silahooy, 2020). In addition, rice husk silica extracted by SEM analysis was also reported as an irregular morphology (Purwaningsih et al, 2018).…”

Section: Morphology Of Corn Leaf Ash Silicamentioning

confidence: 99%

Conversion of Green Silica from Corn Leaf into Zeolites Na A-X

Kurniawan

Satria

Saputra

et al. 2022

Indonesian J. Sci. Technol

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Combustion of corn leaf as a model of biomass from agricultural waste is a simple way to obtain the energy. It produces a low-value by-product of ash and is rich in silica that can become a precursor for zeolite production. In this study, acid-treated corn leaves combustion was performed to produce high purity silica (SiO2). The diffraction pattern suggested that the extracted silica was amorphous without the impurities phase. Additionally, the nitrogen isotherm indicated that the material was highly mesoporous silica with a total surface area of 200 m2/g. The hydrothermal method was then applied with a composition molar ratio of 1.25SiO2:1Al2O3:5Na2O:250H2O to synthesize zeolites from the silica. The temperature and time effect on the hydrothermal zeolite’s synthesis was investigated. The diffraction pattern shows that high crystalline zeolite Na A-X was produced at temperatures of 100°C and 8 h hydrothermal time. According to nitrogen physisorption analysis, the zeolite Na A-X consisted of micropores with a total surface area of 270 m2/g. The morphology of zeolite Na A-X was cube for the Na-A and octahedral for the Na-X. The hydrothermal temperature and time highly affected the zeolite formed. This research suggested that the ash waste could be valorized through conversion into a high economic value zeolites.

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“…Endapan yang terbentuk kemudian difiltrasi dan dikeringkan pada suhu 100ºC selama 2 jam hingga kering selanjutnya digerus menggunakan mortar pestle untuk kemudian dikarakterisasi FTIR. Berdasarkan Gambar 2 terlihat bahwa pada grafik terdapat puncak gelombang 3421,7 cm -1 yang mengindikasikan adanya vibrasi ulur asimetris O-H dari Si-OH [24], pada bilangan gelombang 2109,7 cm -1 menunjukkan adanya vibrasi ulur-H [26], pada bilangan gelombang 1640,0 cm -1 menunjukkan adanya vibrasi tekuk gugus O-H, pada bilangan gelombang 1356,8 cm -1 menunjukkan adanya gugus C-H, pada bilangan gelombang 1058,6 cm -1 menunjukkan adanya vibrasi ulur asimetris Si-O-Si dan pada bilangan 790,2 cm -1 menunjukkan adanya vibrasi ulur simetris Si-O-Si [27].…”

Section: Sintesis Mesoporous Silicaunclassified

“…Pita serapan kuat terdapat pada bilangan gelombang 1043,7 cm -1 dan 1058,6 cm -1 yang menunjukkan vibrasi ulur asimetris dari Si-O-Si dan pada bilangan gelombang 790,2 cm -1 menunjukkan vibrasi ulur simetris dari Si-O-Si [27].…”

Section: Hasil Ftir Dengan Variasi Suhu Hidrotermalunclassified

“…Pada bilangan gelombang 1468,6 cm -1 menunjukkan adanya vibrasi tekuk dari gugus C-H. Pada bilangan gelombang 1043,7 cm -1 , 1051,1 cm -1 , 1058,6 cm -1 dan 1043,7 cm -1 menunjukkan adanya vibrasi ulur asimetris dari gugus Si-O-Si. Pada bilangan gelombang 790,2 cm -1 menunjukkan adanya vibrasi ulur simetris gugus Si-O-Si [27].…”

Section: Hasil Ftir Dengan Variasi Konsentrasi Cetyltrimethylammonium Bromideunclassified

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Pengujian Gugus Fungsi Silika Berbasis Sekam Padi Dengan Variasi Suhu & Konsentrasi Cetyltrimethylammonium Bromide Sebagai Bahan Baku Mesoporous Silica

et al. 2021

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Research has been conducted to test silica function groups based on rice husks with temperature variations and concentrations of Cetyltrimethylammonium Bromide as raw materials for mesoporous silica. In this study, rice husk silica was synthesized by alkaline method with variations in CTAB concentrations of 2.0%, 2.5%, 3.0%, 3.5%, and hydrothermal treatments with temperature variations of 120, 130, 145, and 160ºC for 1 hour in an autoclave. Fourier-Transform Infrared (FTIR) results showed the presence of the most dominant clusters, namely Si-O-Si and other groups such as C-H, -H, O-H, and –OH. Therefore, silica-based rice husks can be used as raw materials mesoporous silica

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Fabrication of mesoporous silica nanoparticles by sol gel method followed various hydrothermal temperature

Cited by 11 publications

References 3 publications

A Promising HKUST‐1@SiO₂ Composite for the Effective Adsorption of Chlorpyriphos from Aqueous Medium

A Promising HKUST‐1@SiO₂ Composite for the Effective Adsorption of Chlorpyriphos from Aqueous Medium

Conversion of Green Silica from Corn Leaf into Zeolites Na A-X

Pengujian Gugus Fungsi Silika Berbasis Sekam Padi Dengan Variasi Suhu & Konsentrasi Cetyltrimethylammonium Bromide Sebagai Bahan Baku Mesoporous Silica

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Fabrication of mesoporous silica nanoparticles by sol gel method followed various hydrothermal temperature

Cited by 11 publications

References 3 publications

A Promising HKUST‐1@SiO2 Composite for the Effective Adsorption of Chlorpyriphos from Aqueous Medium

A Promising HKUST‐1@SiO2 Composite for the Effective Adsorption of Chlorpyriphos from Aqueous Medium

Conversion of Green Silica from Corn Leaf into Zeolites Na A-X

Pengujian Gugus Fungsi Silika Berbasis Sekam Padi Dengan Variasi Suhu & Konsentrasi Cetyltrimethylammonium Bromide Sebagai Bahan Baku Mesoporous Silica

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A Promising HKUST‐1@SiO₂ Composite for the Effective Adsorption of Chlorpyriphos from Aqueous Medium

A Promising HKUST‐1@SiO₂ Composite for the Effective Adsorption of Chlorpyriphos from Aqueous Medium