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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

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

SINTESIS POLY(P-PHENYLENE VINYLENE) SEBAGAI MATERIAL POLIMER ELEKTRONIK Soni Setiadji
JURNAL ISTEK Vol 7, No 2 (2013): ISTEK
Publisher : JURNAL ISTEK

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In this research has been done synthesis of PPV poly (p-phenylene vinylene) and its characterization. PPV synthesis was done by using method of precursor route that including steps of monomerization, PPV precursor polymerization and thermal conversion. Thermal conversion was done in nitrogen gas system with a temperature 300oC for 12 hours. From FT-IR characterization of monomerization given bonds of C-S, C-Cl, C-H, and C= C which indicates the monomer is sulfonium salt. From FT-IR characterization of PPV precursor polymerization follows bonds of C-H aliphatic, C-H trans-vinylene, C-H p-phenylene, C-Cl and C-S which indicates structure of precursor has been formed. However, the result of FT-IR to identify PPV polymer still found C-Cl bond and carbonyl which it showing PPV polymer is not excellent. From UV-Vis characterization of PPV shows it has a maximum absorption peak at 312 nm. PPV precursor of absorption peak is longer than PPV, that has value 326 nm.

STUDI KOMPUTASI SENYAWA DOPAMIN DAN DOPAMIN-TI(OH)2 UNTUK APLIKASI SEL SURYA TERSENSITASI ZAT WARNA Soni Setiadji; Atthar Luqman Ivansyah; Bio Insan Akbar
JURNAL ISTEK Vol 9, No 2 (2015): ISTEK
Publisher : JURNAL ISTEK

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Penelitian ini memprediksi sifat elektronik (diagram energi HOMO/LUMO, spektrum UV-Vis, dan rapatan orbital HOMO/LUMO) dari senyawa zat warna organik dopamin dan sistem dopamin-Ti(OH)2. Perhitungan komputasi dari sistem dopamin-Ti(OH)2[1], yang memodelkan interaksi senyawa zat warna dengan unit TiO2 paling sederhana dilakukan untuk memprediksi pengaruh zat warna tersebut supaya dapat diaplikasikan dalam sel surya tersensitasi zat warna. Sel surya tersensitasi zat warna merupakan salah satu generasi sel surya yang banyak diteliti sampai saat ini. Sel surya ini menggunakan zat warna sebagai sensitizer dan menjadi sangat menarik untuk dikembangkan karena membutuhkan biaya produksi yang murah namum mampu menghasilkan kinerja yang cukup baik. Dalam penelitian ini perhitungan komputasi dilakukan menggunakan perangkat lunak Firefly dan Gaussian 03W, metoda DFT (teori fungsi rapatan) dan TDDFT (teori fungsi rapatan fungsi waktu), B3LYP/6-31G(d,p) untuk semua atom. Spektrum UV-Vis senyawa dopamin hasil perhitungan komputasi memberikan serapan cahaya pada panjang gelombang 180,36 nm (firefly) dan 183,02 (Gaussian 03W) dengan kekuatan osilator 0,642 (firefly) dan 0,627 (Gaussian 03W). Sedangkan interaksi dopamin-Ti(OH)2 memberikan serapan cahaya pada panjang gelombang yang sedikit lebih besar hingga 181,84 nm dengan kekuatan osilator hampir tetap yaitu 0,650 (firefly), dan bergeser lebih kecil menjadi 181,71 nm dengan kekuatan osilator hampir tetap yaitu 0,675 (gaussian 03W). Diagram energi HOMO/LUMO untuk dopamin dan dopamin-Ti(OH)2 memberikan band gap masing-masing sebesar 0,209 eV dan 0,124 eV.

Alternatif Pembuatan Biodiesel Melalui Transesterifikasi Minyak Castor (Ricinus communis) Menggunakan Katalis Campuran Cangkang Telur Ayam dan Kaolin Soni Setiadji; Nila Tanyela B; Tety Sudiartati; Eko Prabowo; Bebeh Wahid N
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 3, No. 1, Mei 2017
Publisher : Syarif Hidayatullah State Islamic University

Biodiesel was produced by transesterification of castor oil (Ricinus communis) using a catalyst of CaO and kaolin (CaO / kaolin) had been performed. CaO was obtained from the calcination of eggshell. Castor oil is selected as biodiesel feedstock because it belongs to non-food oil and easy to cultivate. In general, the research method aims to comprise the CaO / Kaolin catalysts with a ratio of 15 mmol CaO per 1 gram of kaolin activated using impregnation method and biodiesel produced through transesterification of castor oil using the catalyst at 65 ºC for 8 hours with ratio of castor oil: methanol: catalyst (1: 15: 5% w / w). The reaction is carried out on the reflux system. The XRD analysis show the presence of silica and potassium aluminum silicate hydroxide in the catalyst. The EDS results show the catalyst-forming components CaO and silica. The FTIR analysis results show the absorption peak in the functional group forming the methyl ester compound. Based on the characterization of GC-MS, the largest methyl ester components contained in biodiesel are methyl risinoleate, methyl elaidat, methyl stearate, methyl linoleate, and methyl palmitate. The overall conversion of castor oil to methyl ester using CaO / kaolin catalyst is 97.36%. The largest component in castor oil is risinoleic acid, has been successfully converted to methyl risinoleate by 74.75%.DOI: http://dx.doi.org/10.15408/jkv.v0i0.4778

SYNTHESIS OF ZrO2 VIA ULTRASONIC ASSISTED PRECIPITATION METHOD FOR PHOTODEGRADATION OF METHYLENE BLUE Soni Setiadji; Nur Tursina; Nanda Dwimar Hakim; Sanusi Sanusi; Tety Sudiarti; Dani Gustaman Syarif
Jurnal Keramik dan Gelas Indonesia Vol 30, No 1 (2021): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v30i1.6807

Zirconium dioxide (ZrO2) is a semiconductor material which its photocatalytic properties for degradation of methylene blue has been investigated in this research. ZrO2 was prepared from ZrCl4 solution by adding NaOH through precipitation method without ultrasonication, and also with ultrasonication for 1 h and 2 h. The specimens of ZrO2 were analyzed by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Brunauer-Emmett-Teller (BET). The XRD of all ZrO2 samples showed that the smallest ZrO2 crystal size was 8.149 nm based on Debye-Scherrer calculations for ultrasonic time of 2 h. The lattice parameter of ZrO2 under tetragonal phase was analyzed using Rietvield refinement by La Beil method. The specific surface area of all ZrO2 specimens were confirmed by BET. The result showed specific surface area of 99.741 m2/g for treatment with 2 h ultrasonication. The effect of ultrasonic assisted precipitation could increase the photocatalytic activity. This result showed that the degradation of methylene blue by ZrO2 with 2 h ultrasonication is higher than both by ZrO2 with 1 h ultrasonication and ZrO2 without ultrasonication with values of 93.00 %, 88.32 % and 77.53 % respectively, at 120 min irradiation, pH of 10 and 0.05 g of ZrO2

SYNTHESIS OF ZrO2 VIA ULTRASONIC ASSISTED PRECIPITATION METHOD FOR PHOTODEGRADATION OF METHYLENE BLUE Soni Setiadji; Nur Tursina; Nanda Dwimar Hakim; Sanusi Sanusi; Tety Sudiarti; Dani Gustaman Syarif
Jurnal Keramik dan Gelas Indonesia Vol 30, No 1 (2021): Jurnal Keramik dan Gelas Indonesia
Publisher : Balai Besar Keramik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32537/jkgi.v30i1.6807

Zirconium dioxide (ZrO2) is a semiconductor material which its photocatalytic properties for degradation of methylene blue has been investigated in this research. ZrO2 was prepared from ZrCl4 solution by adding NaOH through precipitation method without ultrasonication, and also with ultrasonication for 1 h and 2 h. The specimens of ZrO2 were analyzed by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Brunauer-Emmett-Teller (BET). The XRD of all ZrO2 samples showed that the smallest ZrO2 crystal size was 8.149 nm based on Debye-Scherrer calculations for ultrasonic time of 2 h. The lattice parameter of ZrO2 under tetragonal phase was analyzed using Rietvield refinement by La Beil method. The specific surface area of all ZrO2 specimens were confirmed by BET. The result showed specific surface area of 99.741 m2/g for treatment with 2 h ultrasonication. The effect of ultrasonic assisted precipitation could increase the photocatalytic activity. This result showed that the degradation of methylene blue by ZrO2 with 2 h ultrasonication is higher than both by ZrO2 with 1 h ultrasonication and ZrO2 without ultrasonication with values of 93.00 %, 88.32 % and 77.53 % respectively, at 120 min irradiation, pH of 10 and 0.05 g of ZrO2

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

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

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%.

Takhrij and Syarah of Chemistry: Perspective Hadith and Science About Black Cumin as an Herbal Remedy Diar Sabda Sabiqul Husna; Nurul Mawahda Iskandar; Soni Setiadji; Wahyudin Darmalaksana; Engkos Kosasih
Gunung Djati Conference Series Vol. 5 (2021): Proceedings Conference on Chemistry and Hadith Studies
Publisher : UIN Sunan Gunung Djati Bandung

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The purpose of this study was to discuss the hadith of the Prophet Muhammad about Habbatus Saudaâ€™ plant (Black cumin). The qualitative research method uses the takhrij and sharah hadith approaches with chemical analysis. The results and discussion of this study are Habbatus Saudaâ€™ plant is popular in Prophet Muhammad period, and well-known in modern medicine, and is clinically proven can be used as an herbal remedy. The conclusion of this study is the takhrij and syarah hadith of the Prophet SAW regarding Habbatus Saudaâ€™ plant in perspective hadith and science as herbal remedy.

Takhrij and Syarah Hadith of Chemistry: Fermented Fruit Juice Into Heady Putri Widia Mukti; Salis Abdalah Hatami; Soni Setiadji; Dadang Kahmad; Tatang Zakaria
Gunung Djati Conference Series Vol. 5 (2021): Proceedings Conference on Chemistry and Hadith Studies
Publisher : UIN Sunan Gunung Djati Bandung

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The purpose of this research is to discuss the hadith of the Prophet Muhammad Saw. about the nabidz feeling. This research method is qualitative through the takhrij and syarah hadith approaches with chemical analysis. The result and discussion of this research is that the nabidz juice is prohibited from being consumed by the Prophet because the nabidz juice has produced alcohol. The conclusion of this research is takhrij and syarah hadith of the Prophet Muhammad Saw. about nabidz juice with chemical analysis has a relationship, where the alcohol produced from the fruit sugar content can be intoxicating and harmful to the body if consumed in excess.

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