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All Journal CHEMISTRY PROGRESS ILMU KELAUTAN: Indonesian Journal of Marine Sciences JURNAL KIMIA SAINS DAN APLIKASI JBIO: jurnal biosains (the journal of biosciences) Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung Journal of Aquatropica Asia Elkawnie Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir Jurnal Kimia Riset Indonesian Journal of Chemical Science Indonesian Journal of Pure and Applied Chemistry SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Martabe : Jurnal Pengabdian Kepada Masyarakat JKPK (Jurnal Kimia dan Pendidikan Kimia) Fullerene Journal of Chemistry JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Stannum : Jurnal Sains dan Terapan Kimia Jurnal Abdi: Media Pengabdian Kepada Masyarakat Empowerment: Jurnal Pengabdian Masyarakat Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Media Bina Ilmiah Dharma Pengabdian Perguruan Tinggi (DEPATI) Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir CONSERVA : Jurnal Konservasi Sumber Daya Alam dan Lingkungan
Verry Andre Fabiani
Jurusan Kimia, Fakultas Teknik, Universitas Bangka Belitung
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Sintesis Nanopartikel Perak Menggunakan Bioreduktor Ekstrak Daun Pucuk Idat (Cratoxlum glaucum) dengan Metode Iradiasi Microwave Verry Andre Fabiani; Desti Silvia; Dinda Liyana; Herul Akbar
Jurnal Kimia Fullerene Vol 4 No 2 (2019): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (451.813 KB) | DOI: 10.37033/fjc.v4i2.102

Abstract

Synthesis of silver nanoparticles was carried out using bioreductors of Cratoxylum glaucum leaf extract using the microwave irradiation method. Synthesis was carried out by reacting the Cratoxylum glaucum leaf extract with silver nitrate solution at a mass ratio of 1: 2. The variables of this study were variations in silver nitrate concentration and synthesis time. Based on the results of UV-Vis analysis showed the presence of maximum wavelength absorption which is characteristic of the formation of silver nanoparticles at a wavelength of 398.8 nm with a concentration of 0.5 mM AgNO3 and a synthesis time of 120 seconds. Particle size analysis shows that the 10% particle size distribution is 92.5 nm and overall is 544.1 nm. Antibacterial activity test results showed silver nanoparticles have strong antibacterial properties against E. coli and S. aureus bacteria.
Sintesis dan Karakterisasi Nanopartikel Perak – Ekstrak Daun Pelawan (Tristaniopsis Merguensis Griff) Termodifikasi PVA Ike Nur Amanah; Della Puspita Indriyani; Bana Prilia Muharomah; Verry Andre Fabiani
Jurnal Kimia Fullerene Vol 6 No 2 (2021): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v6i2.336

Abstract

Synthesis and characterization of silver nanoparticles have been carried out by reacting pelawan leaf extract (Tristaniopsis Merguensis Griff) with a solution of 0.05 M silver nitrate (AgNO3) and PVA through a stirring process for 24 hours. UV-VIS, and XRD analyzed the characteristics of silver nanoparticles. Gray and accompanied by a precipitate. The results of UV-VIS analysis showed absorption at a wavelength of 420 at a concentration of 0.75% and 460 nm at a concentration of 3%. XRD diffractogram of PVA modified silver nanoparticles showed a diffraction pattern of %) and 2 = 38.25o, 44.43o, 64.43o, 77.43o (3% PVA) with Miller indices (111), (200), (220), and (311). Based on the results of an (International Center For Diffaction Data) No. 01- 071-4613, namely at 2 38.11, 44.2, 64.37 and 77.42 (PVA 0.75), silver nanoparticles with a cubic crystal system were formed. In addition, the results of the XRD analysis are also used to determine the average nanosilver particle size using the Debye-Scherr equation.
Degradasi Zat Warna Rhodamin-B Menggunakan Green Fotokatalis Seng Ferit (ZnFe2O4) - Ekstrak Daun Pucuk Idat (Cratoxylum Glaucum) Sindi Atika Putri; Ike Nur Amanah; Jeni Susilawati; Verry Andre Fabiani
Jurnal Kimia Fullerene Vol 6 No 2 (2021): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v6i2.341

Abstract

Currently the development of the textile industry is not accompanied by proper textile waste treatment. Dyes from the textile industry are simply thrown away, causing dangerous environmental problems. One of the dyes that is often used in the textile and food industry is rhodamine B. An alternative for handling dye contamination is using photocatalyst technology. ZnFe2O4, nanoparticles have photocatalytic activity with UV light and visible light for the degradation of rhodamine B. This study aims to determine the characteristics of zinc ferrite (ZnFe2O4,) using a bioreductant of pucuk idat leaf extract (Cratoxylum glaucum) and determine the percent degradation of rhodamine B dye using zinc ferrite photocatalyst material. – leaf extract of pucuk idat (Cratoxylum glaucum). The method that will be used in this research is the experimental method. Broadly speaking, this research includes the extraction of pucuk idat leaves, synthesis of zinc ferrite-pucuk idat leaves and their characterization. To calculate the % degradation of rhodamine-B, first determine linear regression with variations in concentrations of 5 ppm, 10 ppm, 15 ppm, 20 ppm, and 25 ppm. The regression equation y= 0.0154x–0.0149 and the correlation coefficient (R2) with a linearity of 0.9857 were obtained. After characterization using XRD, FTIR, UV-Vis, and calculations, the highest percentage of rhodamine-B degradation was found in the sample RB + ZnFe2O4 + UV 3 hours, with a % degradation value of 16.42%.
GREEN SYNTHESIS NANOPARTIKEL PERAK MENGGUNAKAN EKSTRAK DAUN PUCUK IDAT (Cratoxylum glaucum) SEBAGAI BIOREDUKTOR Verry Andre Fabiani; Febry Sutanti; Desti Silvia; Megawati Ayu Putri
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 2 (2018)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (615.449 KB) | DOI: 10.26418/indonesian.v1i2.30533

Abstract

An environment friendly technique for green synthesis of silver nanoparticles has been reported. Silver nanoparticle have been synthesized using water extract of leaves of pucuk idat (Cratoxylum glaucum), commonly known as local Bangka plant. The flavonoid and tannin present in the extract act as reducing agent. AgNO3 0,05 M solution was reducing using the extract at room temperature by stirring. Color changing of the solution was detected at 30 minutes reaction time. The color tends to be darker by the increasing of reaction time. Various techniques used to characterize synthesized nanoparticles are UV-Visible spectrophotometer, x-ray diffraction (XRD) and scanning electron microscopy (SEM). UV-Visible spectrophotometer showed absorbance peak in 405 nm, the XRD shows that silver nanoparticles formed are crystalline. The average particle size of Ag nanoparticles estimated from the Scherrer formula is 35,59 nm, while SEM image shows shape of silver nanoparticle is random and some spherical shape.
SINTESIS DAN KARAKTERISASI SILIKA GEL DARI LIMBAH KACA SERTA APLIKASINYA PADA KROMATOGRAFI KOLOM Verry Andre Fabiani; Nelly Wahyuni; Ridho Brilliantoro; Mellisa Nurul Safitri
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 1 (2018)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.94 KB) | DOI: 10.26418/indonesian.v1i1.26038

Abstract

Silica gel synthesis from glass waste have been carried out with activation and purification method by using hydrochloride acid. Hydrochloride acid were varied 8 N, 10 N, and 12 N to observe optimum concentration in purification of silica gel and component separation in chromatography column. Gravimetric analysis result showed 12 N hydrochloride acid produce ~100 % silica. XRD and FTIR analysis revealed that synthetic gel silica was amorphous where its IR absorption bands were at 3426 cm-1, 1620 cm-1, 1080 cm-1, 772 cm-1 and 478 cm-1. The absorption bands agreed to standard gel silica and spectrum. The most effective HCl in gel silica synthesis was 12 N, caused by its ability to separate color component in a column. The synthetic silica that can be applied as stationary phase in column chromatography.
The Adsorption Efficiency of Lead From Post-Tin Mining Water using Nanomagnetic Fe3O4/Chitosan Portunus pelagicus shells Verry Andre Fabiani; Eva Julianti; Ary Samsiar; Ristika Oktavia Asriza
Stannum : Jurnal Sains dan Terapan Kimia Vol 1 No 1 (2019): Oktober
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (595.342 KB) | DOI: 10.33019/jstk.v1i1.1271

Abstract

Adsorption was carried out on the water of post tin mining using nanomagnetic Fe3O4/chitosan from Portunus pelagicus shells. Nanomagnetic Fe3O4/Chitosan was prepared for lead adsorption. The nanomagnetic Fe3O4 was characterized through XRD and chitosan was characterized through FTIR The concentration of Pb in post tin mining water is 0,36 ppm. This study varied the mass of Fe3O4 and stirring time. The adsorption results were analyzed by AAS and obtained the largest adsorption efficiency (58,33%) at stirring 30 minutes with a mass of Fe3O4 of 75 mg.
Pengaruh Temperatur Deproteinasi Pada Deasetilasi Kitin Cangkang Udang Krosok (Penaeus semisulcatus) Terhadap Adsorpsi Logam Besi (Fe) Herman Aldila; Asmar Asmar; Verry Andre Fabiani; Desy Yuliana Dalimunthe; Megiyo Megiyo; Riko Irwanto
Stannum : Jurnal Sains dan Terapan Kimia Vol 2 No 1 (2020): April
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v2i1.1722

Abstract

Penelitian ini bertujuan menganalisis pengaruh variasi temperatur deproteinasi pada daya adsorbsi kitosan udang krosok (Penaeus semisulcatus) terhadap logam besi (Fe) pada air kolong bekas penambangan timah timah di Pulau Bangka. Bahan baku kitosan yang digunakan dalam penelitian ini merupakan limbah cangkang udang krosok dari industri rumah tangga pembuatan ebi. Kitosan limbah cangkang udang ebi telah disintesis dalam tiga tahapan meliputi: deproteinasi, demineralisasi, dekolorisasi dan deasetilasi. Pada penelitian ini proses sintesis menggunakan variasi temperatur deproteinasi masing-masing: 30oC, 60oC, dan 90oC. Berdasarkan analisis data FTIR, dapat ditentukan nilai derajat deasetilasi sampel berturut-turut sebesar: 32,01% ; 30,94% dan 28,74%. Peningkatan temperatur deproteinasi menyebabkan nilai derajat deasetilasi kitosan menjadi menurun. Penurunan ini diakibatkan oleh rusaknya struktur kitin pada sampel akibat temperatur yang meningkat. Kandungan logam Fe pada air kulong yang digunakan dalam penelitian ini mencapai 6,1 ppm. Adsorbsi kitosan pada logam Fe dapat menurunkan kadar terlarut mencapai rata-rata 99,67% dari kadar awal. Kandungan gugus hidroksil pada kitosan menyebabkan terjadinya reaksi pembentukan senyawa hidroksida turunan dari logam besi terlarut. Senyawa besi hidroksida tersebut akan terpisah dari air dan membentuk endapan. Semakin besar nilai derajat deasetilasi maka akan semakin besar kandungan gugus hidroksil sehingga menyebabkan daya adsorbsi kitosan semakin meningkat.
The Sintesis dan Karakterisasi Komposit Fe3O4/Kitosan/Kaolin Bangka Eva Julianti; Verry Andre Fabiani; Ristika Oktavia Asriza
Stannum : Jurnal Sains dan Terapan Kimia Vol 2 No 2 (2020): Oktober 2020
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v2i2.1897

Abstract

Synthesis and characterization of Fe3O4/chitosan/clay Bangka has been carried out. Synthesis of composite was done with variations the composition of clay (0; 25; 50; 100 %) at the composition of Fe3O4 95 mg of Fe3O4 and 1 gr of chitosan. Characterization of composite Fe3O4/chitosan/clay have been analysed with XRD, FTIR, porosity test, the degree of development, and adsorption efficiency test for Cu2+ ion. The results of the analysed with XRD show the difractogram of clay and Fe3O4 at 2θ= 8,92o, 29,57o, and 45,61o (clay); 26,90o, and 35,64o (Fe3O4). Results of the analysed with ftir show the spectrum of the chitosan, clay, and Fe3O4 at 3825, 3689, 2103, 1425 cm-1 (chitosan), 1028, 884,41 cm-1 (clay), 791,11 cm-1 (chitosan) and 696,95 cm-1 (Fe3O4). The results of porosity test and the degree of development showed the high point are 1,547 and 754,63% without composition of clay. The adsorption test for Cu2+ ion show percentage of adsorption efficiency is 72,41% at composite of Fe3O4/chitosan with the clay added 1 gr.
Synthesis of Rare Earth Metal Oxides Based on Monasite Sand with pH Variations Anisa Indriawati; Herman Aldila; Verry Andre Fabiani
Stannum : Jurnal Sains dan Terapan Kimia Vol 2 No 2 (2020): Oktober 2020
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v2i2.1953

Abstract

In the island of Bangka Belitung, the presence of monazite is quite abundant, monazite minerals contain rare earth metals. Rare Earth Metals are groups of elements that have similar properties, for example neodymium, cerium, lanthanum, and others. Rare earth metal applications are very potential in various fields. In this research, the synthesis of rare earth metals by sol gel method at pH variations of 5.5, 6.5 and 7.5 was carried out. In this case, only changes in the levels of P2O5, La2O3, CeO2, and Nd2O3 compounds were observed. The results showed an increase in levels of rare earth metals. This is indicated by the increase in La2O3 levels by 4,421% from the initial level at pH 7.5 CeO2 which has increased levels by 7,166% at pH 7.5, and Nd2O3 which has increased levels of 5.116% at pH 6.5. On the other hand, of P2O5 has decreased significantly (22.037%) Keyword: Monasite, Rare Earth, Sol Gel, pH
SINTESIS DAN KARAKTERISASI KOMPOSIT KAOLIN-TiO2 DARI ILMENIT BANGKA UNTUK FOTODEGRADASI ZAT WARNA RHODAMIN B Rezalia Annisa; Verry Andre Fabiani; Nurhadini Nurhadini
Stannum : Jurnal Sains dan Terapan Kimia Vol 3 No 1 (2021): April 2021
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v3i1.2075

Abstract

The synthesis and characterization of kaolin-TiO2 from ilmenite composite as a degradation of rhodamine B dye was prepared. Natural kaolin from Air Bara, Central Bangka and ilmenite from BPM Unit Metalurgi PT. Timah (Persero), Tbk., Mentok Bangka Belitung. The kaolin sample was chemically activated and the ilmenite was carried out leaching with acid (HCl), then the ilmenite was calcined at temperature of 700°C to obtain the anatase phase. Synthesis of kaolin-TiO2 from ilmenit using the precipitation method using ethanol as a solvent, the composite using with 3 variation of kaolin mass i.e 0,2; 0,4 and 0,6 (w/w). The fungsional groups and the phase structure of kaolin-TiO2 from ilmenite was analyzed using FTIR and XRD, then the composite was applied to rhodamine B solution to determine the percentage of degradation in the solution by UV-Vis Spectrophotometry analysis. Degradation was carried out by adding 150 mg kaolin-TiO2 to 25 mL of rhodamine B solution and degradation process by irradiating UVC light. Based on FTIR and XRD data should that kaolin-TiO2 from ilmenite was formed composite. The optimum variation of kaolin mass in the composite composition of 0,4:3 (w/w). Based on UV-Vis Spectrophotometry data, rhodamine B solution with composite kaolin-TiO2 as catalyst was able to degrade rhodamine B up to 87,7% with the largest percentage of degradation at the 40 minutes. Keyword : ilmenite, kaolin, kaolin-TiO2, degradation, rhodamine B
Co-Authors Adisyahputra Adisyahputra Adisyahputra, Adisyahputra Afriza, Gita Ahmad Fahrul Syarif Alkasiyah Amelia, Addela Anak Agung Istri Sri Wiadnyani Anisa Indriawati Ardiansyah Kurniawan Aries Dwi Siswanto Ariyanto, Dafit Ariyanto Ary Samsiar Asmar Asmar Ayu Ratna Sari Bana Prilia Muharomah Claudia, Dita Davina, Lyra Della Adelia, Della Della Puspita Indriyani Della Puspita Indriyani Desti Silvia Desti Silvia Desy Yuliana Dalimunthe Dinda Liyana Eva Julianti Fahmi Rizal Fajar Indah Puspita Sari Febry Sutanti Fuspita Istiqomah Herman Aldila Herul Akbar Hutagalung, Soluna Desbait Ike Nur Amanah Ike Nur Amanah Ina Miranti Indriyani, Della Puspita Janiar Pitulima Jeni Susilawati Lestari, Iin Lingga, Rahmad Marhan Ebit Saputra Megawati Ayu Putri Megawati Ayu Putri Megiyo Megiyo Mellisa Nurul Safitri Nabila, Shagita Ndruru, Sun Theo Constan Lotebulo Nelly Wahyuni Nurcahyono, Eka Nurhadini Nurhadini Nuryanto Nuryanto Pilani, Rima Putri, Faizah Alivia Putri, Megawati Ayu Putri, Restani Eka Rahmad Lingga Rezalia Annisa Ridho Brilliantoro Riesna Prassanti Riko Irwanto Ristika Oktavia Asriza Rizka Felly Robby Gus Mahardika Robin Robin, Robin Sakhila, Shania Saraswati, Sabrina Sari, Fajar Indah Puspita Septiani, Reti Sindi Atika Putri Suci Puspita Sari Umroh Umroh Vega Victory, Shelly Virliana, Zelfia Widia Widodo Budi Kurniawan