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SYNTHESIS OF POROUS CARBON MATERIAL PROPYLENE MEDICAL MASK AS ADSORBENT HEAVY METAL IRON (Fe) IN WATER EX-TIN MINING BANGKA BELITUNG Amelia, Addela; Putri, Faizah Alivia; Widia; Adelia, Della; Alkasiyah; Fabiani, Verry Andre
Jurnal Kimia Riset Vol. 9 No. 1 (2024): June
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v9i1.50750

Abstract

 Bangka Belitung Islands Province faces severe environmental challenges, exacerbated byillegal tin mining activities leading to heightened pollution levels, particularly in stagnantwater within former tin mining holes, reaching depths of up to 40 meters. The presence ofiron metal (Fe) in this water poses a health risk, potentially damaging intestinal walls andcompromising lung function upon ingestion. This study presents a novel approach to addressthis issue by synthesizing porous carbon material from propylene waste sourced frommedical masks. The process involves initial sulfonation for sterilization and pore sizeenhancement, followed by activation using KOH and carbonization at 750 °C.Characterization methods validate the successful synthesis, including FTIR highlightingpolypropylene groups at 822 cm-1, XRD indicating graphite carbon with high crystallinity,and SEM exhibiting rod shapes and cavities at 5,000í— magnification. The adsorption testdemonstrates outstanding performance, with porous carbon exhibiting a 100% adsorptionefficiency in purifying water, eliminating odors, and reducing iron (Fe) levels. Thisinnovative method effectively reduces iron levels in stagnant water environments, providinga sustainable solution to environmental pollution, particularly in Bangka Belitung.  
Synthesis of Nano Silver From Melastoma malabathricum Leaf Extracts Modified PVA and its Antibacterial Activity Test Indriyani, Della Puspita; Fabiani, Verry Andre; Sari, Fajar Indah Puspita
Jurnal Sains dan Terapan Kimia Vol 17, No 2 (2023)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v17i2.13862

Abstract

Synthesis of silver nanoparticles from the extract of senduduk leaf (Melastoma malabathricum) with modified polyvinyl alcohol (PVA) has been carried out. The purpose of this study was to determine the effect of the addition of PVA on the characteristics of silver nanoparticles formed using the extract of sensaat leaf (Melastoma malabathricum). Variations in the concentration of PVA used were 0%; 0.75%; 1.5%; and 3%. Synthesis was carried out in a ratio of 1:10:1 (Extract: AgNO3: PVA) for 2 hours. The characteristics of the synthesis of nanoparticles using a UV-Vis spectrophotometer resulted in a consecutive wavelength of 414 nm; 435 nm; 438 nm; and 420 nm. To determine the particle size using Particle Size Analyzer (PSA) analysis at 0% PVA and 3% PVA with sizes obtained 61.9 nm and 216.2 nm. The average particle size using X-Ray Diffraction (XRD) analysis showed the results in the form of crystals and using the Debye-Scherrer equation to obtain the average particle size of PVA 0% 22.97 nm and PVA 3% 10.15 nm. Antibacterial activity test on silver nanoparticles used disc diffusion method, which showed that silver nanoparticles had moderate to strong antibacterial activity against Staphylococcus aureus and Escherichia coli bacteria.Keywords: Bioreductor, senduduk leaf extract, silver nanoparticles, and polyvinyl alcohol
Separation of Thorium (Th) from Monazite Sand of Bangka Island using Primene JMT Solvent Extraction Method Claudia, Dita; Fabiani, Verry Andre; Nurhadini, Nurhadini; Prassanti, Riesna
EKSPLORIUM Vol 44, No 2 (2023): November 2023
Publisher : Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/eksplorium.2023.6480

Abstract

Thorium is an essential element as an alternative nuclear fuel to replace uranium. Thorium is found in the mineral monazite, which is a by-product of the alluvial tin mining process. Many methods have been used to extract and separate thorium from uranium and REEs from monazite, one of which is the organic solvent extraction method. In this research, the primene JMT, which is an extractant of primary amine compounds, was used in the method. The studied parameters are feed pH, JMT primene concentration, and stirring speed. The results show that the optimum conditions for Th extraction in monazite using solvent extraction method primene JMT were obtained at pH 0.5, extractant concentration of 2%, and stirring speed of 300 rpm with Th recovery of 94.05% while U and REE were not extracted.
Photocatalytic Degradation of Batik Cual Wastewater Using Fe3O4/SiO2/TiO2 Composite Derived From Tin Tailing Fabiani, Verry Andre; Putri, Restani Eka; Davina, Lyra; Virliana, Zelfia
Elkawnie: Journal of Islamic Science and Technology Vol 10, No 2 (2024)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v10i2.20506

Abstract

Abstract: Batik cual dye wastewater is produced from the batik cual industry in Bangka, which contains Remazol dye, which is carcinogenic and a non-biodegradable organic compound that can be a pollutant for the environment. The elevated levels of remazol dyes in Batik Cual wastewater necessitate effective and environmentally safe waste management methods. One such method is photodegradation, utilizing a Fe3O4/SiO2/TiO2 composite photocatalyst derived from tin tailings sand. The Fe3O4/SiO2/TiO2 composites were synthesized via the hetero-agglomeration method. XRF characterization revealed that the SiO2 content, following purification with HNO3 acid leaching, reached 78.63%. XRD characterization of the tin tailings indicated the presence of peaks corresponding to quartz silica. Phase analysis using XRD diffractograms for the Fe3O4/SiO2/TiO2 composites showed peaks of magnetite, quartz silica, and a predominant anatase TiO2 phase with strong diffraction patterns at 2θ angles of 27.42°; 39.19°; 44.00°, and 54.29°. UV-DRS analysis determined the band-gap energy of the Fe3O4/SiO2/TiO2 photocatalyst to be 1.9 eV. Morphological SEM analysis indicated that the synthesized Fe3O4/SiO2/TiO2 composite had a spherical, uneven, rough, and porous surface. The photodegradation of the Fe3O4/SiO2/TiO2 composite on cual batik dye waste showed that the optimal contact time for photodegradation was 60 minutes, and the catalyst dose was 500 mg at 98.1%. Consequently, these findings confirm that the Fe3O4/SiO2/TiO2 composite is a viable photocatalyst for photodegradation in handling cual batik dye waste.Abstrak:  Limbah zat warna batik cual dihasilkan dari industri batik cual di Bangka yang mengandung zat warna Remazol, bersifat karsinogenik dan merupakan senyawa organik non-biodegradable yang dapat menjadi pencemar bagi lingkungan Tingginya kadar zat warna remazol pada limbah batik cual membutuhkan penanganan limbah yang tepat dan aman bagi lingkungan. Salah satu metode yang dinilai efektif  yaitu metode fotodegradasi menggunakan  fotokatalis komposit Fe3O4/SiO2/TiO2berbahan pasir tailing timah. Karakterisasi XRF menunjukkan kadar SiO2 setelah dilakukan pemurnian acid leaching HNO3 mencapai 78,63%. Hasil karakterisasi XRD tailing timah menunjukkan terdapatnya puncak yang menandakan silika kuarsa. Komposit Fe3O4/SiO2/TiO2berdasarkan analisis fasa menggunakan XRD difraktogram menunjukkan puncak magnetit, silika kuarsa dan didominasi fasa TiO2 anatase pada sudut 2θ 27,42°; 39,19°; 44,00°; dan 54,29. Berdasarkan analisis UV-DRS didapatkan energi ban-gap untuk fotokatalis Fe3O4/SiO2/TiO2sebesar 1,9 eV. Analisis morfologi pada komposit Fe3O4/SiO2/TiO2 menunjukkan bentuk sperik, permukaan yang tidak rata, kasar dan berpori. Uji fotodegradasi komposit Fe3O4/SiO2/TiO2terhadap limbah zat warna batik cual didapatkan waktu kontak optimal fotodegradasi pada waktu 60 menit dan massa komposit 500 mg sebesar 98.1%. Sehingga dengan hasil tersebut dapat disimpulkan bahwa komposit dapat dijadikan fotokatalis dalam proses fotodegradasi dalam menangani limbah zat warna batik cual.
SYNTHESIS AND CHARACTERIZATION OF SILICA GEL/CHITOSAN COMPOSITE DERIVED FROM TIN TAILING FOR REMOVAL OF Fe(III) IN POST-TIN MINING WATER Pilani, Rima; Nabila, Shagita; Vega; Verry Andre Fabiani
Jurnal Kimia Riset Vol. 9 No. 2 (2024): December
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v9i2.60989

Abstract

A study on the synthesis and characterization of silica gel/chitosan composite derived from tin tailings for removal of Fe(III) in post-tin mining water has been carried out. The silica source used for the synthesis of silica gel is tin tailings. It is produced by the sol-gel method. The characteristics of silica gel from tin tailings sand are white powder with a silica content of 73.58% after compositing with 30 mL and 45 mL chitosan solution, showing that the chitosan phase was successfully formed together with the silica phase. Functional group analysis showed the presence of typical chitosan functional groups (-NH2) at 1629 cm-1 and 1635 cm-1 and typical silica functional groups (-Si-O-Si) at 1000 cm-1 to 1020 cm-1. These functional groups appeared in addition to all variations of the chitosan solution. Morphological analysis shows that in the addition of 45 mL chitosan solution, the silica gel/chitosan composite has a morphology in the form of small round particles with uneven surfaces and more dominant pores. Adsorption study of silica gel/chitosan composite on Fe(III) in post-tin mining water showed 95.5% adsorption efficiency in the addition of 45 mL chitosan solution. The adsorption condition observed is the adsorption time as a fixed variable in this study, which is for 17 hours.
ENKAPSULASI HORMON GnRH DAN ANTI DOPAMINE MELALUI PAKAN TERHADAP PENINGKATAN PEMATANGAN GONAD IKAN CEMPEDIK (Osteochilus spilurus) kurniawan, ardiansyah; Nurcahyono, Eka; Syarif, Ahmad Fahrul; Robin, Robin; Fabiani, Verry Andre
Journal of Aquatropica Asia Vol 9 No 2 (2024): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/joaa.v9i2.6313

Abstract

Ikan Cempedik (Osteochilus spilurus) merupakan salah satu ikan konsumsi ekonomis penting bagi masyarakat Belitung Timur. Ketersediaannya untuk konsumsi dan perdagangan masih mengandalkan hasil tangkapan dari alam. Penangkapan alam secara terus menerus dapat berakibat terjadinya penurunan populasi Ikan Cempedik pada habibat alaminya, sehingga perlu adanya upaya mendomestikasi spesies ini menuju komoditas akuakultur. Ikan air tawar ini telah berhasil didomestikasikan pada level pertama dengan kemampuannya hidup dalam wadah terkontrol, pada penelitian ini diupayakan meningkatkan kematangan gonadnya melalui pakan yang mengandung hormon GnRH-Analog+Antidopamin. Penelitian ini terdiri dari 4 perlakuan yakni P1 (kontrol), P2 (0,005 ml/gram pakan), P3 (0,01 ml/gram pakan), dan P4 (0,015 ml/gram pakan). Hasil penelitian menunjukkan pemberian hormon GnRH-Analog dan Anti Dopamin melalui pakan memberikan pengaruh terhadap peningkatan nilai Gonado Somatic Index dan Hepato Somatic Index Ikan Cempedik. Perlakuan terbaik terdapat pada dosis 0,015 ml/gram yang menghasilkan TKG IV terbanyak, Gonado Somatic Index (GSI) sebesar 7,59%, Hepato Somatic Index (HSI) sebesar 0,17% dan fekunditas sebesar 1.390 butir.
ENKAPSULASI HORMON GnRH DAN ANTI DOPAMINE MELALUI PAKAN TERHADAP PENINGKATAN PEMATANGAN GONAD IKAN CEMPEDIK (Osteochilus spilurus) kurniawan, ardiansyah; Nurcahyono, Eka; Syarif, Ahmad Fahrul; Robin, Robin; Fabiani, Verry Andre
Journal of Aquatropica Asia Vol 9 No 2 (2024): Journal of Aquatropica Asia
Publisher : Program Studi Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/joaa.v9i2.6313

Abstract

Ikan Cempedik (Osteochilus spilurus) merupakan salah satu ikan konsumsi ekonomis penting bagi masyarakat Belitung Timur. Ketersediaannya untuk konsumsi dan perdagangan masih mengandalkan hasil tangkapan dari alam. Penangkapan alam secara terus menerus dapat berakibat terjadinya penurunan populasi Ikan Cempedik pada habibat alaminya, sehingga perlu adanya upaya mendomestikasi spesies ini menuju komoditas akuakultur. Ikan air tawar ini telah berhasil didomestikasikan pada level pertama dengan kemampuannya hidup dalam wadah terkontrol, pada penelitian ini diupayakan meningkatkan kematangan gonadnya melalui pakan yang mengandung hormon GnRH-Analog+Antidopamin. Penelitian ini terdiri dari 4 perlakuan yakni P1 (kontrol), P2 (0,005 ml/gram pakan), P3 (0,01 ml/gram pakan), dan P4 (0,015 ml/gram pakan). Hasil penelitian menunjukkan pemberian hormon GnRH-Analog dan Anti Dopamin melalui pakan memberikan pengaruh terhadap peningkatan nilai Gonado Somatic Index dan Hepato Somatic Index Ikan Cempedik. Perlakuan terbaik terdapat pada dosis 0,015 ml/gram yang menghasilkan TKG IV terbanyak, Gonado Somatic Index (GSI) sebesar 7,59%, Hepato Somatic Index (HSI) sebesar 0,17% dan fekunditas sebesar 1.390 butir.
Synthesis and Characterization of Zirconium Oxychloride from Bangka and Belitung Zircon Sand Nurhadini, Nurhadini; Fabiani, Verry Andre; Ndruru, Sun Theo Constan Lotebulo; Kurniawan, Widodo Budi
Jurnal Kimia Sains dan Aplikasi Vol 28, No 7 (2025): Volume 28 Issue 7 Year 2025
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.28.7.362-367

Abstract

Although zircon sand, a byproduct of tin mining in Bangka and Belitung, is abundant and rich in zirconium content, it remains underutilized despite its potential for conversion into value-added products. This study aims to explore the feasibility of using Bangka and Belitung zircon sand as raw materials for the synthesis and characterization of zirconium oxychloride octahydrate (ZrOCl2·8H2O), and to evaluate its properties relative to a commercial reference. A hydrometallurgical process involving alkaline fusion and acid leaching was employed to convert zirconium silicate (ZrSiO4) into ZrOCl2·8H2O. Comprehensive characterization was conducted using X-ray fluorescence, X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, and particle size analysis. The results revealed that Bangka zircon sand contains a higher zirconium content (79.12%) than Belitung sand (76.97%). Both sources exhibited lower zirconium purity and higher chlorine content compared to a reference. Despite these limitations, the total Zr and Cl content reached 88.12% for the Bangka sample and 86.08% for the Belitung sample, indicating promising potential. Both products shared similar structural and morphological features in different sizes. Belitung-derived ZrOCl2·8H2O exhibited a higher ZrOCl2·8H2O phase, more defined morphology, and smaller size, suggesting it has better properties as a precursor in zirconium-based applications. This study supports the valorization of mining byproducts and highlights the potential of local zircon sand as a raw material for zirconium-based applications.
FORMULASI SEDIAAN GEL HAND SaNITIZER DARI EKSTRAK DAUN PUCUK IDING-IDING (Stenochlaena palustris) sebagai antiseptik alami Fahmi Rizal; Verry Andre Fabiani; Fajar Indah Puspitasari; Ristika Oktavia Asriza
Media Bina Ilmiah Vol. 19 No. 11: Juni 2025
Publisher : LPSDI Bina Patria

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The use of local plants in the Bangka Belitung islands, such as shoots of idat (Cratoxylum glaucum), pelawan (Tristaniopsis spp) and shoots of iding-iding (Stenochlaena palustris) has been practiced by local people for a long time as medicinal plants and vegetables. The three plants are natural ingredients that have been studied and contain very high antioxidant and antibacterial compounds. Iding-iding shoots (Stenochlaena palustris) have antimicrobial uses but their use as antiseptics has not been carried out. Iding-iding shoots have been studied to contain many flavonoids, polyphenols, hydroxycinnamic acid and anthrocyanins. In this study, the formulation of hand sanitizer gel preparations from iding-iding leaf extract (Stenochlaena palustris) as a natural antiseptic with varying concentrations in inhibiting the growth of Escherichia coli and Staphylococcus aureus will be carried out in this study. So far, there has been no research using iding-iding leaf extract (Stenochlaena palustris) in hand sanitizer gel preparations. The results showed that the leaf extract of iding-iding shoots had excellent bacterial inhibition at a concentration of 5% on E.Coli and S.Aureus bacteria.
ISOLASI DAN KARAKTERISASI BAKTERI RESISTEN CD DARI KAWASAN PENAMBANGAN TIMAH Septiani, Reti; Lingga, Rahmad; Fabiani, Verry Andre
CONSERVA Vol 1 No 1 (2023): CONSERVA : Jurnal Konservasi Sumber Daya Alam dan Lingkungan
Publisher : Unmuh Babel Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35438/conserva.v1i1.183

Abstract

Bangka Belitung Province is one of the largest tin producing area in Indonesia. One of the mining sites located on the Sampur Beach, Kebintik Village, Central Bangka Regency. Tin mining activities can increase heavy metals harmful to the environment, such as Cadmium (Cd). This research aimed to measure Cd levels in sediment and seawater, to isolate and identify Cd resistant bacteria from sediment. Cd metal was analyzed using Atomic Absorption Spectrophotometer (AAS). The average Cd metal level in seawater is 0,0080 ppm and in sediment is 0,0086 ppm. Bacteria were isolated using Zobell 2216E media with the spread plate method. The isolated Bacteria were tested for resistance to Cd with concentration of 20 ppm, 50 ppm, 80 ppm, 100 ppm, and 120 ppm. From 16 bacterial isolates that have been obtained, 7 isolates were resistant to all concentrations, 1 isolate was resistant to 50 ppm, 1 isolate was only resistant to 20 ppm, and 7 isolates were not resistant. Based on the results of the analyzed, the seven isolates of resistant bacteria have similarity with Halomonas sp. (R2 and R3), Neisseria sp. (R4), Cupriviadus sp. (R5), Bacillus sp. (R11), Alcaligenes sp. (R12), and Roseobacter sp. (R13).