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Sintesis TiO2 terdoping Fe3+ untuk Degradasi Rhodamin B Secara Fotokatalisis dengan Bantuan Sinar Tampak Eka Pratiwi; Harlia Harlia; Anthoni Batahan Aritonang
POSITRON Vol 10, No 1 (2020): Vol. 10 No. 1 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (569.05 KB) | DOI: 10.26418/positron.v10i1.37739

Abstract

Fotokatalis TiO2 terdoping Fe3+ telah disintesis menggunakan titanium tetraisopropoksida (TTIP) sebagai prekursor serta dopan Fe3+ dari Fe(NO3)3 dengan metode sol-gel. Fotokatalis TiO2 didoping menggunakan Fe3+ bertujuan untuk memperlebar serapan dari sinar Ultra Violet (UV) hingga sinar tampak pada berbagai variasi persentase Fe3+ 0,05%; 0,125%; 0,25% (b/v). karakterisasi fotokatalis dilakukan dengan metode spektrofotometri UV-Vis/DRS, FT-IR, XRD  dan diuji aktivitasnya terhadap degradasi rhodamin B. Hasil pengukuran UV-Vis/DRS dari setiap variasi memberikan energi celah pita (Eg) masing-masing sebesar 1,33 eV, 2,11 eV, 2,53 eV. Spektra Infra merah (FT-IR) menunjukkan serapan Fe-O yang merupakan interaksi antara TiO2 dengan dopan Fe3+ dalam struktur TiO2. Hasil pengukuran x-ray difraction (XRD) Fe-TiO2 memberikan difragtogram pada 2θ 25,4773°, 37,9223°, 48,0159° mengindikasikan bahwa Fe3+ telah tersubsitusi kedalam struktur TiO2. Dopan Fe3+ yang telah tersubsitusi juga dapat dibuktikan dari penurunan ukuran rata-rata kristalit dan jarak antar kisi. Hasil Uji Aktivitas konsentrasi dopan Fe3+ 0,125% memiliki aktivitas tertinggi yaitu sebesar 25,605%. Hasil penelitian tersebut menunjukkan bahwa Fe-TiO2 memiliki potensi dalam mendegradasi rhodamin B menggunakan sinar tampak.
Synthesis of Ni doped-TiO2 Thin Film Photocatalysts on Glass Surfaces Margareta Caroline Harunrasjid; Anthoni Batahan Aritonang; M. Agus Wibowo; Puji Ardiningsih; Adhitiyawarman Adhitiyawarman
Indonesian Journal of Chemical Analysis (IJCA) Vol. 6 No. 1 (2023): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol6.iss1.art9

Abstract

Thin film of TiO2 modified Ni2+ cationic (Ni doped-TiO2) thin films were synthesized from titanium tetraisopropoxide (TTIP) and Ni(NO3)2.6H2O using the combined sol-gel and dip coating method followed by calcination at 500oC for an hour. This study aims to determine the concentration of Ni2+ and the optimum number of layers for application as self-cleaning. Frontier transform infrared (FTIR) spectrophotometric analysis observed a shift in the vibration absorption peak of Ti-O towards a smaller wave number as an indication that the Ni2+ cationic have incorporated in the TiO2matrix in forming Ni-TiO2. Based on the of x-ray diffraction (XRD) it is known that Ni-TiO2 has anatase crystalline phase with a crystallite size of 149.20 nm. Diffuse reflectance ultraviolet-visible (DRSUV-Vis) spectrophotometry showed a decrease in the bandgap energy (3.2 eV to 2.22 eV). Surface morphological by scanning electron microscopy (SEM) method showed that the addition of polyethylene glycol (PEG) resulted in a more homogeneous distribution of particles than thin films without PEG. The self-cleaning activity of Ni-TiO2 was tested for surface hydrophilic properties by measuring the contact angle of water and oil droplets under visible light illumination.
Characterization of Secondary Metabolites and Cytotoxic Assay of Haliclona sp. Sponge Against T47D Breast Cancer Cells Ajuk Sapar; Millenia Millenia; Anthoni Batahan Aritonang; Rudiyansyah Rudiyansyah; Winda Rahmalia
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol 10, No 1 (2023): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v10i1.20334

Abstract

Characterization of secondary metabolites and cytotoxic testing of Haliclona sp. against T47D breast cancer cells were conducted in this study. The objective was to assess the cytotoxicity of T47D cancer cells and identify the functional groups involved. The research methods employed included maceration, partitioning, phytochemical testing, toxicity testing using the BSLT method, separation through flash column chromatography (FCC), cytotoxic testing using the MTT method, and characterization using FTIR. The partition results of methanol extract consist of n-hexane, ethyl acetate, and methanol-water fractions. The methanol extract demonstrated high toxicity, with an LC50 of 5.21 ppm. Among the fractions, the ethyl acetate fraction exhibited the highest toxicity compared to the n-hexane and methanol-water fractions, with LC50 values of 25.76 ppm, 42.71 ppm, and 55.26 ppm, respectively. Phytochemical testing of the ethyl acetate fraction yielded positive results for terpenoids, steroids, alkaloids, and phenolic compounds. The ethyl acetate fraction was further separated using flash column chromatography, resulting in ten combined fractions (M1-M10). The cytotoxicity tests of the M3 fraction against 747D breast cancer cells showed non-toxic effects, with an IC50 value of 1382.29 ppm. The FTIR analysis of the M3 fraction revealed the presence of functional groups such as O-H, =C-H, C-H aliphatic, C=O, and C=C, which is indicative of the presence of terpenoids, steroids, and esters.
Sosialisasi Pembentukan Tim Desa Tanggap Bencana dan Edukasi Mitigasi Bencana berbasis Masyarakat di Desa Rodaya Kecamatan Ledo Kalimantan Barat Aritonang, Anthoni Batahan
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 8 No. 3 (2023): September
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v8i3.1425

Abstract

Potensi bencana di Indonesia sangat dipengaruhi oleh faktor geografis, geologis, hidrologis, dan demografis. Faktor-faktor ini dapat menyebabkan bencana alam, baik yang disebabkan oleh alam maupun oleh tindakan manusia. Upaya peningkatan kesiapsiagaan masyarakat di desa untuk menghadapi bencana telah menghasilkan konsep "desa tanggap bencana," baik dalam bentuk komunitas maupun di tingkat desa. Penanganan bencana akan lebih efektif jika semua pihak yang terlibat berperan dalam mengurangi kemungkinan terjadinya bencana dan risiko yang ditimbulkan oleh bencana tersebut. Penelitian ini bertujuan untuk menyebarkan informasi tentang pembentukan "desa tanggap bencana" (Destana) dan memberikan pelatihan kepada tim Destana yang telah terbentuk untuk meningkatkan pengetahuan dan keterampilan mereka dalam menghadapi bencana. Kegiatan ini diikuti oleh 25 peserta yang mewakili tiga dusun di wilayah tersebut. Metode pelaksanaan Penelitian adalah melalui ceramah dan diskusi, diikuti dengan pengukuhan tim Destana Desa Rodaya serta memberikan pendidikan kepada tim yang telah terbentuk. Evaluasi kegiatan menunjukkan bahwa tim Destana desa yang terdiri dari 10 orang telah berhasil dikukuhkan, dan pengetahuan tentang teknik-teknik penanggulangan bencana di wilayah Desa Rodaya telah disampaikan kepada 25 peserta kegiatan melalui kuis sebelum dan setelah kegiatan dilaksanakan.. Socialization of the Formation of a Village Disaster Response Team and Community-based Disaster Mitigation Education in Rodaya Village, Ledo District, West Kalimantan  The potential for disasters in Indonesia is greatly influenced by geographical, geological, hydrological and demographic factors. These factors can lead to natural disasters, whether caused by nature or by human actions. Efforts to increase community preparedness in villages to face disasters have resulted in the concept of "disaster response villages," both in the form of communities and at the village level. Disaster management will be more effective if all parties involved play a role in reducing the possibility of disasters and the risks posed by these disasters. This research aims to disseminate information about the formation of "disaster response villages" (Destana) and provide training to the Destana team that has been formed to increase their knowledge and skills in dealing with disasters. This activity was attended by 25 participants representing three hamlets in the area. The research implementation method is through lectures and discussions, followed by the inauguration of the Rodaya Village Destana team and providing education to the team that has been formed. Evaluation of the activity showed that the village Destana team consisting of 10 people had been successfully confirmed, and knowledge about disaster management techniques in the Rodaya Village area had been conveyed to 25 activity participants through quizzes before and after the activity was carried out.
Macro Mineral Profile of Several Species of Brown Macroalgae from Lemukutan Waters as Biostimulant Candidates Warsidah; Aritonang, Anthoni Batahan; Apindiati, Rita Kurnia
Jurnal Ilmiah Platax Vol. 12 No. 1 (2024): ISSUE JANUARY-JUNE 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i1.54606

Abstract

Biostimulants are natural or synthetic substances that can be used to stimulate plant growth, development, and defense responses and can be obtained from various sources such as plants, phytohormones, and microorganisms. Macroalgae is one of the potential marine biota that can be used as a biostimulant because it contains a lot of chemicals such as micro, macro minerals, and phytohormones. As a first step in exploring macroalgae from the waters of Lemukutan Island as biostimulant candidates, this research was carried out to determine the macro mineral content of calcium, potassium, sodium, and phosphorus from macroalgae types Turbinaria and Sargassum. The research was carried out using the atomic absorption spectrophotometric (AAS) analysis method. The results of determining the macro mineral content show that Turbinaria sp has a Calcium (Ca) content of 13.20 mg/kg, Potassium (K) of 31.24 mg/kg, Sodium (Na) of 21,45 mg/kg and Magnesium (Mg) of 17.5 mg/kg, while Sargassum sp has a Calcium (Ca) content of 10.50 mg/kg, Potassium (K) of 26.35 mg/kg, Sodium (Na) of 30.55 mg/kg and Magnesium (Mg) of 18.7 mg/kg. Keywords: Biostimulants, AAS, macro minerals, phytohormones. Abstrak Biostimulan adalah substansi alami atau sintetis yang dapat digunakan untuk merangsang pertumbuhan, perkembangan, dan respons pertahanan tanaman dan dapat diperoleh dari berbagai sumber seperti tanaman, fitohormon dan mikroorganisme. Makroalga adalah salah satu biota potensial dari laut yang dapat digunakan sebagai biostimulan karena kandungan kimianya sangat banyak seperti mineral mikro, makro dan fitohormon. Sebagai langkah awal dalam eksplorasi makroalga dari perairan pulau Lemukutan  sebagai kandidat biostimulan, maka penelitian ini dilakukan untuk menentukan kandungan makro mineral kalsium, kalium, natrium dan posfor dari makroalga jenis  Turbinaria dan Sargassum. Penelitian dilakukan menggunakan metode analisis spektrofotometri serapan atom (SSA). Hasil penentuan kandungan mineral makro tersebut menunjukkan Turbinaria sp memiliki kandungan  Kalsium (Ca) sebesar 13,20 mg/kg, Kalium (K)  sebesar 31,24 mg/kg, Natrium (Na) sebesar 21,45 mg/kg dan Magnesium (Mg) sebesar 17,5 mg/kg, sedangkan Sargassum sp memiliki kandungan Kalsium (Ca) sebesar 10,50 mg/kg, Kalium (K)  sebesar 26.35 mg/kg, Natrium (Na) sebesar 30.55 mg/kg dan Magnesium (Mg) sebesar 18,7 mg/kg. Kata kunci : Biostimulan, SSA, mineral makro, fitohormon.
Peningkatan Kadar Zirkonium Silikat dalam Pasir Puya, Residu Penambangan Emas dari Kecamatan Monterado Kabupaten Bengkayang Provinsi Kalimantan Barat Kartika, Novi; Silalahi, Imelda Hotmarisi; Zaharah, Titin Anita; Aritonang, Anthoni B
POSITRON Vol 14, No 1 (2024): Vol. 14 No. 1 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v14i1.66460

Abstract

Pasir zirkon memiliki kandungan zirkonium berkisar antara 30-50% berat di beberapa lokasi penambangan emas yang berada di Kalimantan Barat. Analisis XRF memperlihatkan persen berat unsur dalam pasir hitam non magnetik (PHNM) dari pasir zirkon yang berasal dari Kecamatan Monterado, Kabupaten Bengkayang adalah 48,05% Zr; 3,35% Si serta unsur lain seperti 20% Ti, 18,95% Fe dan 1,62% Hf. Peningkatan kadar zirkon dilakukan melalui beberapa tahapan yaitu metode fusi alkali dengan perbandingan massa PHNM terhadap massa NaOH yaitu 10 gram : 5 gram (2:1) pada variasi temperatur 700 °C dan 800 °C selama 2 jam, kemudian tahap pelindian menggunakan HCl 2% diikuti oleh pelindian lanjut dalam HCl 37%. Perbedaan temperatur dalam reaksi fusi alkali menghasilkan perbedaan komposisi Zr, dimana pada temperatur 700 °C adalah 88,45% sedangkan pada temperatur 800 °C adalah 90,11% dengan rasio Zr/Si masing-masing adalah 5,33 dan 4,85. Temperatur reaksi fusi alkali pada 800 °C memperlihatkan komponen Zr lebih tinggi dengan rasio Zr/Si yang mendekati ZrSiO4 yaitu 3,25. Analisis jenis mineral menggunakan XRD padat memperlihatkan keberadaan mineral ZrSiO4 dengan struktur kristal tetragonal, memiliki puncak utama pada 2θ adalah 20,04°-20,10°, 26,94°-26,98°, dan 53,48°-53,49°. Ukuran kristal ZrSiO4 berdasarkan perhitungan menggunakan persamaan Debye Scherrer berada dalam kisaran 120,78 nm (2θ = 20,10°), 122,30 nm (2θ = 26,98°), dan 133,17 nm (2θ = 53,48°). Rendemen perlakuan PHNM dengan rangkaian proses reaksi fusi alkali, reaksi basa dan pelindian menggunakan HCl adalah berkisar 33% dengan kadar zirkon silikat dalam produk akhir meningkat dari 46,2% menjadi 90,11%.
Co(II)-TiO2/Ti Thin Film as Antibacterial Photocatalysts Escherichia Coli Under Visible Light Ilumination Aritonang, Anthoni Batahan; Rozaqina, Nuri; Harlia, H.
BERKALA SAINSTEK Vol 11 No 3 (2023)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v11i3.38055

Abstract

A thin layer of TiO2 doped with Cobalt (II) immobilized on the surface of a titanium foil (Co(II)-TiO2/Ti) has been synthesized from a titanium foil (Ti) as a TiO2 precursor as well as a thin layer matrix and CoCl2.6H2O as a source of Co(II) on variations of 0.5%, 1% and 2%. Synthesis was carried out by anodizing method using ethylene glycol electrolyte solution with the addition of NH4F and followed by calcination treatment at 450ºC for 3 hours. The obtained Co(II)-TiO2 /Ti thin films were characterized using Fourier-transform infrared (FT-IR) spectroscopy, Diffuse Reflectance UV-Vis (DRSUV-Vis) and X-ray diffraction (XRD) methods. Doping Co(II) variations of 0.5%, 1.0% dan 2.0% in the TiO2 structure causes a shift in the vibrational absorption peak of Ti-O (460.99 cm-1) towards a smaller wave number of 459.06 cm-1 respectively ; 453.27 cm-1 and 451.34 cm-1. This is supported by the results of the DRUV-Vis analysis using the tauc plot method, which shows a decrease in the band gap energy of TiO2 (3.24 eV) to 2.57 eV, 2.47 eV and 2.28 eV. Based on XRD analysis, it is known that the Co(II)-TiO2/Ti photocatalyst has anatase phase with a crystal size of 15-17 nm. The photocatalytic activity of Co(II)-TiO2/Ti under visible light illumination was evaluated for inhibition of Escherichia coli bacterial growth. Co(II)-TiO2/Ti photocatalyst at 2.0% Co(II) concentration had the best inhibition (43.2%) compared to 0.5% and 1.0% Co(II) concentrations, respectively 18% inhibition and 27%.
Synthesis of The Cu(II)-doped TiO2/Bi2O3 as a Photocatalyst for Rhodamin B Degradation Under Visible Light Ilumination Aritonang, Anthoni Batahan; Asma, Al; Sapar, Ajuk
BERKALA SAINSTEK Vol 11 No 4 (2023)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v11i4.39799

Abstract

The Cu(II)-doped TiO2 and Cu(II)-doped TiO2 /Bi2O3 compound have been synthesized using the sol gel method with titanium tetraisopropoxide (TTIP) as the TiO2 precursor and Cu(NO3)2.3H2O as the Cu(II) dopant was carried out at various concentration of 0.075%; 0.250% and 1.000%, as well as Bi(NO3)3.5H2O as a Bi2O3 precursor. Based on characterization using the DRSUV-Vis spectrophotometric method with data analysis using a tauch plot, it is known that the band gap energy of Cu(II)-doped TiO2 is 2.89 eV; 2.72 eV; 2.54 eV. The addition of Bi2O3 to Cu(II)-doped TiO2 (1%) causes a decrease in the band gap from 2.54 to 2.18 eV which is equivalent to a wavelength of 567 nm. IR spectrophotometry spectra analysis shows a shift in Ti-O absorption towards smaller wave numbers. Characterization by the XRD method shows that 1% Cu(II)-doped TiO2 /Bi2O3 has an anatase phase with a crystallite size of 24 nm. Photocatalysis activity test on the degradation of rhodamine B solution at a concentration of 10 ppm, under visible light illumination for 180 minutes was able to degrade up to 85.85%.
PROFIL GC-MS DAN BIOAKTIVITAS EKSTRAK MINYAK DAUN CENGKEH (Syzygium aromaticum) TERHADAP ULAT GRAYAK Spodoptera frugiperda (GC-MS PROFILING AND BIOACTIVITY OF EXTRACTS CLOVE LEAF OIL (Syzygium aromaticum) AGAINST FALL ARMYWORMS Spodoptera frugiperda) Sitohang, Mikael; Jayuska, Afghani; Hernowo, Kukuh; Alimuddin, Andi Hairil; Aritonang, Anthoni Batahan
Indonesian Journal of Pure and Applied Chemistry Vol 7, No 2 (2024)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v7i2.77091

Abstract

Clove leaf essential oil can be used as a natural insecticide to control pests. Essential oil obtained by steam distillation produces essential oil with a yield of 1.03%. The essential oil obtained was then analyzed using a GC-MS tool where the aim was to separate the mixture of compounds and identify the compounds contained in clove leaf essential oil. The results of GC-MS analysis of clove leaf essential oil shoved 6 compounds whose similarity was above 84%, where the main compounds were eugenol (74.28%), β-Caryophellene (20.49%), α-Caryophellene (2.32%), Caryophellene oxide (2.26%). The essential oils were then tested for mortality and antifeedant activity against 3rd larva S. frugiperda. Concentrations of 0.1%, 0.3%, 0.5%, 0.7% and 0.9% v/v the essential oil caused 43.44%, 56.66%, 70%, 76.77%, and 86.66% mortality on to tested larva. The probit analysis data the mortality resulted LC50 value of 0.58%. Antifeedant concentrations of 0.37% and 0.58% v/v or equivalent to LC25 and LC50 can reduce 42.41-71.96% of the preferred method and 66.46-86.59% of the non-optioned method.
GAMBARAN PERMAINAN MEDIA KARTU KUARTET TERHADAP TINGKAT PENGETAHUAN CARA MENYIKAT GIGI PADA SISWA/I KELAS IV SD NEGERI 105332 SEI BLUMEI KECAMATAN TANJUNG MORAWA Aritonang, Intan; Asmawati, Asmawati; Sitopu, Selli Dosriani; Aufa, Raisa Rasyada
JURNAL DARMA AGUNG Vol 32 No 6 (2024): DESEMBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Darma Agung (LPPM_UDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46930/ojsuda.v32i6.5105

Abstract

Perilaku masyarakat terhadap kesehatan gigi dapat diukur melalui kebiasaan menjalankan rutinitas menyikat gigi. Tindakan menyikat gigi memegang peran yang sangat vital dalam mencegah pertumbuhan bakteri yang berpotensi merusak kesehatan gigi. Salah satu cara untuk meningkatkan pemahaman mengenai kebiasaan menyikat gigi adalah melalui penyampaian informasi edukatif menggunakan media kartu kuartet. Media kartu kuartet merupakan media cetak yang berfokus pada unsur visual, yang menggabungkan teks dan gambar sebagai sarana untuk menyampaikan materi edukasi. Penelitian ini bersifat deskriptif dengan menggunakan metode survei, bertujuan untuk mengevaluasi dampak permainan media kartu kuartet terhadap pengetahuan siswa/i kelas IV di SD Negeri 105332 Sei Blumei Kecamatan Tanjung Morawa. Jumlah partisipan dalam penelitian ini sebanyak 47 individu. Hasil penelitian menunjukkan bahwa sebelum bermain kartu kuartet, 13 siswa/i (27,7%) memiliki pengetahuan yang baik, 20 siswa/i (42,5%) memiliki pengetahuan yang sedang, dan 14 siswa/i (29,8%) memiliki pengetahuan yang buruk. Setelah bermain kartu kuartet, 25 siswa/i (53,2%) memiliki pengetahuan yang baik, 18 siswa/i (38,3%) memiliki pengetahuan yang sedang, dan 4 siswa/i (8,5%) memiliki pengetahuan yang buruk. Simpulan dari penelitian menunjukkan bahwa permainan media kartu kuartet dapat meningkatkan pengetahuan siswa/i dalam hal teknik menyikat gigi. Kami berharap agar pihak sekolah dapat bekerjasama dengan puskesmas dalam melaksanakan UKGS guna meningkatkan kesehatan gigi dengan memanfaatkan permainan media kartu kuartet.