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All Journal VALENSI JURNAL ISTEK Jurnal Keramik dan Gelas Indonesia Walisongo Journal of Chemistry Jurnal Keramik dan Gelas Indonesia Gunung Djati Conference Series Jurnal Material dan Energi Indonesia al Kimiya : Jurnal Ilmu Kimia dan Terapan
Soni Setiadji
UIN Sunan Gunung Djati Bandung
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Journal : Walisongo Journal of Chemistry

 1 
AG-ZSM-11 ZEOLITE SYNTHESIS USING SILICA FROM ELEPHANT GRASS FOR LED APPLICATION Sundari, Citra D. D.; Setiadji, Soni; Firmansyah, Atthar Luqman; Abdurahman, Dede; Nurbaeti, Denia Febby
Walisongo Journal of Chemistry Vol 1, No 2 (2018): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2396.275 KB) | DOI: 10.21580/wjc.v2i2.3107

Abstract

Silica (SiO2) has been successfully isolated from elephant grass by the sol gel method through pH regulation using NaOH and HCl. The resulting silica has an amorphous character with crystalline phase impurities. The isolated silica was then used as a source of silica for the synthesis of ZSM-11 zeolite using the hydrothermal method with a ratio of SiO2 : TBAOH : H2O = 1 : 0.35 : 25. XRD characterization results confirmed the formation of ZSM-11 zeolite. The SEM results show that the ZSM-11 zeolite crystal morphology is oval with crystal growth in all directions. Immersion of the synthesized ZSM-11 zeolite into AgNO3 solution and followed by calcination resulted in zeolite Ag-ZSM-11 which has different optical properties compared to the initial ZSM-11 zeolite. Zeolite ZSM-11 gives purple luminescence while zeolite Ag-ZSM-11 gives pink luminescence when illuminated under UV lights
Ag-ZSM-11 Zeolite Synthesis Using Silica from Elephant Grass for LED Application Citra D. D. Sundari; Soni Setiadji; Atthar Luqman Firmansyah; Dede Abdurahman; Denia Febby Nurbaeti
Walisongo Journal of Chemistry Vol 1, No 2 (2018): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v2i2.3107

Abstract

Silica (SiO2) has been successfully isolated from elephant grass by the sol gel method through pH regulation using NaOH and HCl. The resulting silica has an amorphous character with crystalline phase impurities. The isolated silica was then used as a source of silica for the synthesis of ZSM-11 zeolite using the hydrothermal method with a ratio of SiO2 : TBAOH : H2O = 1 : 0.35 : 25. XRD characterization results confirmed the formation of ZSM-11 zeolite. The SEM results show that the ZSM-11 zeolite crystal morphology is oval with crystal growth in all directions. Immersion of the synthesized ZSM-11 zeolite into AgNO3 solution and followed by calcination resulted in zeolite Ag-ZSM-11 which has different optical properties compared to the initial ZSM-11 zeolite. Zeolite ZSM-11 gives purple luminescence while zeolite Ag-ZSM-11 gives pink luminescence when illuminated under UV lights
Synthesis of SnO2 Using Hydrothermal Method and Its Application as Catalyst in Esterification of Oleic Acid Soni Setiadji; Ridha Ulfah; Ira Ryski Wahyuni
Walisongo Journal of Chemistry Vol 4, No 2 (2021): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v4i2.7911

Abstract

Biodiesel is currently getting great attention because it can reduce carbon dioxide emissions by 78.5% compared to petroleum-based diesel. The reaction that can produce biodiesel is the esterification reaction with the addition of a heterogeneous catalyst, one of which is SnO2 which can be used as Lewis acid for the esterification reaction. In our study, SnO2 has been successfully synthesized and then succeeded in reducing the level of oleic acid FFA (Free Fatty Acid) through an esterification reaction. SnO2 was synthesized from SnCl2.2H2O using the hydrothermal method with the addition of CTAB (Cetyl Trimethyl Ammonium Bromide) as a capping agent which was then analyzed using XRD (X-Ray Diffraction) and SEM (Scanning Electron Microscopy). The catalytic activity of the SnO2 sample was carried out through the esterification reaction of oleic acid in ethanol at 65 °C for 6 hours with variations in catalyst weight and variations in the ethanol mole ratio. From XRD analysis, SnO2 sample consists of cassiterite minerals and has typical peaks at 2θ = 26.56°; 33.84°; 37.92°; 38.90°; 42.53°; 51.64°; 54.66°; 57.76°; 61.68°; 62.34°; 64.60°; and 65.88° with the highest intensity at 2θ = 33.84°. During condition optimization of esterification reaction of oleic acid, variations in the weight of SnO2 catalyst resulting from the optimum FFA level could be reduced by 75.05%, whereas to variations in the mole ratio of ethanol, the optimum FFA level could be reduced by 85.53%. In our study, SnO2 has been successfully synthesized and then succeeded in reducing the level of oleic acid FFA through esterification reaction until 85.53%.
Co-Authors Abdurahman, Dede Adi Bungsu Pribadi Ahmad Hidayat Amelia Putri Sugiso Ani Sri Wahyuni Arief Iyustiana Athar Luqman Ivansyah Atthar Luqman Firmansyah Atthar Luqman Ivansyah AYU ANDINI Bebeh Wahid N Bio Insan Akbar Chodijah, Medina Citra D. D. Sundari Dadang Kahmad Dani Gustaman Syarif Dede Abdurahman Dede Suhendar Denia Febby Nurbaeti Diar Sabda Sabiqul Husna DIBA GRACE AULIA DIMAS SANDI Dzikry Muhammad Nashir Eka Febrianti Eko Prabowo Eko Prabowo Hadisantoso, Eko Prabowo Esa Sofariah Eva Asadah FAHMI SHIHAB Firmansyah, Atthar Luqman FITRILAWATI FITRILAWATI Gina Giftia Azmiana Delilah Ginawanti Maulida Gunawan Intan Siti Fatonah Ira Ryski Wahyuni Ira Ryski Wahyuni Kevin Mardiansyah Bayu Ardana Kosasih, Engkos Muhammad Alfan Nanda Dwimar Hakim Nila Tanyela B Nisrina Dhia Pinasti NORMAN SYAKIR Nur Tursina Nurbaeti, Denia Febby Nurul Mawahda Iskandar Pipi Oktaviani Putri Widia Mukti RASMIYANTI Ridha Ulfah Risdiana Risdiana Sachiyah Nur Chasanah Salis Abdalah Hatami Sandi Muhamad Arifin Sansan Firmansyah Kadarusman Sanusi Sanusi Silvianaqori Nurulaeni Sipa Mualipah Solihin, Muhtar Sundari, Citra Deliana Dewi Syifa Akmalia Zahra Tety Sudiartati Tety Sudiarti ULFA FAUZIAH Vera Nur Azmi Vina Amalia, Vina VIRA FUJI ARINI Wahyudin Darmalaksana Yusuf Rohmatulloh Zakaria, Tatang Zhafarina Adzra