Article Per Year (5 Year)
p-Index From 2020 - 2025
3.582
P-Index
This Author published in this journals
All Journal Jurnal Kimia (Journal of Chemistry) Jurnal Ilmu Lingkungan Jurnal Neutrino : jurnal fisika dan aplikasinya Jurnal Riset Kimia JURNAL INTEGRASI PROSES Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Jurnal Saintek Lahan Kering Indonesia Journal of Halal JKPK (Jurnal Kimia dan Pendidikan Kimia) Indonesian Physical Review Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Stannum : Jurnal Sains dan Terapan Kimia Community Development Journal: Jurnal Pengabdian Masyarakat Molluca Journal of Chemistry Education (MJoCE) Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Jurnal Pengabdian kepada Masyarakat Nusantara Hydrogen: Jurnal Kependidikan Kimia Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Journal of Chemical Science and Application
Matius Stefanus Batu
Program Studi Kimia, Fakultas Pertanian, Sains Dan Kesehatan Universitas Timor, 85613
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences Other

Published : 26 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 26 Documents
Search

 1   2   3 
CHITOSAN ISOLATION AND ITS APPLICATION TO REDUCE THE CONTENT OF METAL IONS IN WELLBORE WATER Amri, Yulida; Fajri, Rahmatul; Batu, Matius Stefanus
Jurnal Neutrino:Jurnal Fisika dan Aplikasinya Vol 12, No 1 (2019): October
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.348 KB) | DOI: 10.18860/neu.v12i1.8186

Abstract

Potential water sources such as white shrimp shell waste (Penaeus merguiensis) can be used as a source of chitosan. Chitosan can be applied as an environmentally friendly adsorbent for water treatment because of its ability to adsorb metal ions. In this study, chitosan was isolated through several stages such as demineralization, deproteination, decolourization and deacetylation. The yield of chitosan obtained from this study was 17.73%. Characterization by infrared spectroscopy (FTIR) showed the absorption at 3355 cm-1 indicating the presence of amine (-NH2) and hydroxyl (-OH) groups. The absorption of the carbonyl group (-C=O) at 1642 cm-1 disappeared while the absorption of the free amine group (-NH2) at 1590 cm-1 increased indicating the successful deacetylation with a degree of deacetylation (DD) 78%. Application of chitosan in wellbore water did not affect on colour change and decreasing of iron (Fe) content due to low concentration of iron (Fe). However, chitosan can reduce the pH value of water and manganese (Mn) content. The results of ANOVA and DMRT test at 0.05 significance level showed that chitosan with various mass had different effects. The more the mass of chitosan added, the higher the content of manganese (Mn) will decrease.
Analisis Kandungan Logam Berat Kromium (Cr) dalam Sedimen di Perairan Teluk Ambon Bagian Dalam Matius Stefanus Batu; Marselina Theresia Djue Tea; Antho Netty Siahaya; Yeslia Utubira
Saintek Lahan Kering Vol 2 No 2 (2019): JSLK Desember 2019
Publisher : Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.194 KB) | DOI: 10.32938/slk.v2i2.870

Abstract

Analysis of Chromium (Cr) heavy metal content in sediment have been done at inner part of Ambon Bay by using Atomic Absorption Spectrofotometer (AAS). This analysis has been done in six sampling areas, they are : Galala (the first locations), Lateri (the second location), Negeri Lama (the third location), Waeheru (the fourth location), Poka (the fifth location), and Halong (the sixth location). The study aims to determine the content of chromium metal (Cr) in sediments at inner part of Ambon Bay. The analysis showed that the Cr metal content ranged from 33.68-191.74 mg/kg. The chromium (Cr) heavy metal content in sediments is mostly among the quality standards set by the ANZECC (Australian and New Zealand Environment and Conservation Council) in 2000, which is 80-120 mg/Kg
XRF and XRD Investigation for the Results of the Extraction of Mud Volcano from Napan Village into Silica Marianna Caryna Kono; Matius Stefanus Batu; Yohana Ivana Kedang; Regina Seran
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 6, No 3 (2021): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v6i3.55022

Abstract

Silica powder was obtained from the mud volcano of Napan Village following the co-precipitation method. This research aimed to determine the phase changes that occur in calcined silica with various temperatures. This research was carried out in three stages, there are the preparation of a mud volcano using the pre-treatment method, extraction of silica with sodium hydroxy solution, and calcination of silica with temperature variations. By analysis of XRF and XRD results, the mud volcano samples showed a high percentage of SiO2 minerals. The results of silica characterization using XRD showed that uncalcined and calcined silica at 600oC had an amorphous structure with broading peaks. Tridymite and cristobalite phases were detected in calcined silica at 800oC and 1000oC. Calcined silica at a temperature of 1000oC transformed the tridymite phase to cristobalite with a decrease in the intensity of the tridymite phase while the cristobalite phase increased.
PENGUATAN PERILAKU UNTUK PENCEGAHAN PENULARAN PENYAKIT COVID-19 PADA MASYARAKAT DI PASAR EBAN KEFAMENANU Ite Morina Yostianti Tnunay; Florian Mayesti Prima Remba Makin; I Gede Arya Wiguna; Matius Stefanus Batu; Risna Erniyati Adu; Meri Helsiana Mata; Wilda Lumban Tobing; Kamaluddin Kamaluddin
Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Vol 3, No 2 (2021)
Publisher : Fakultas Teknik Universitas Diponegoro

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

Abstract

Masih rendahnya kesadaran akan bahaya virus Corona menyebabkan banyak masyarakat tidak menjalankan protokol kesehatan secara benar terutama di tempat ramai misalnya di Pasar Eban. Akibatnya peluang penyebaran virus Corona semakin tinggi. Oleh karena itu, perlu dilakukan kembali penguatan perilaku untuk mencegah penularan penyakit Covid-19 kepada masyarakat di Pasar Eban Kefamenanu. Bentuk Kegiatan Pengabdian yang dilakukan adalah pembagian masker dan edukasi mengenai dampak penyakit Covid-19 kepada pedagang dan pengunjung Pasar Eban Kefamenanu. Hasil dari kegiatan ini adalah masyarakat dapat melakukan protokol kesehatan secara sadar dan benar yaitu melalui 3M: memakai masker, menjaga jarak dan menghindari kerumunan, serta mencuci tangan pakai sabun. 
PEMBUATAN KARBON AKTIF DARI LIMBAH SABUT PINANG ASAL PULAU TIMOR SEBAGAI BIOSORBEN LOGAM Ca DAN Mg DALAM AIR TANAH Matius Stefanus Batu; Emerensiana Naes; Maria Magdalena Kolo
JURNAL INTEGRASI PROSES VOLUME 11 NOMOR 1 JUNI 2022
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jip.v11i1.13181

Abstract

The production of activated carbon from areca nut waste as a biosorbent for Ca and Mg in groundwater has been done. This research aimed to determine the ash content, water content, and iodine number of activated carbons from areca nut waste and determine the optimum contact time and adsorption capacity for the adsorption of Ca and Mg in groundwater. Activated carbon making is done by carbonation and activation. The activator used was H2SO4 1,5 M with a soaking time of 24 hours. The adsorption process is carried out in batches with variations in contact time. The results showed that the activated carbon from areca nuts waste had an ash content of 14,97%, water content of 7,17%, iodine number of 1,079.19 mg/g, and the FTIR characterization results showed that activated carbon has the functional groups OH, CH, CO, C≡C, C=C and C=O. The optimum time condition for the adsorption of areca fiber-activated carbon to calcium and magnesium in groundwater is at a contact time of 90 minutes with an adsorption capacity of 2.1196 mg/g for Ca and 0.7540 mg/g for Mg.
Pemanfaatan Ekstrak Biji Feun Kase (Thevetia peruviana) sebagai Inhibitor Korosi Logam Seng dalam Media HCl Matius Stefanus Batu; Maria Magdalena Kolo; Adolvina Kono
Jurnal Riset Kimia Vol. 13 No. 2 (2022): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v13i2.520

Abstract

Feun Kase seed extract can be used as a corrosion inhibitor on zinc metal in HCl solution. This study aims to determine the secondary metabolites contained in Feun Kase seed extract, inhibition efficiency and corrosion rate, and surface morphology of zinc metal in the inhibition process using Feun Kase seed extract in HCl media. Feun Kase seed extract was obtained by maceration extraction using methanol. In the corrosion inhibition test, the concentration and temperature variations were carried out to determine the effect on the inhibition efficiency and the corrosion rate per year. The results showed that the methanol extract of Feun Kase seeds contained secondary metabolites of alkaloids, flavonoids and saponins. The optimum inhibition efficiency was obtained at an inhibitor concentration of 30 ppm of 82.70% with a corrosion rate of 5.80 mm/year and at a temperature of 35ºC of 75.84% with a corrosion rate of 7.28 mm/year in the test of increasing the temperature of the corrosion medium. The morphological analysis of the zinc plate using the SEM instrument showed that the zinc plate without surface treatment (not immersed in HCl media) was still smooth. This is indicated by the surface of the zinc plate which is still clearly visible because it has not been affected by the corrosion medium. The zinc plate when immersed in HCl media, is damaged which is indicated by the presence of pores or holes. Zinc plate when added with Feun Kase seed extract in HCl media, the zinc surface was damaged but the damage was not as prominent as in HCl media without using an inhibitor.
PELATIHAN PENGGUNAAN MICROSOFT POWERPOINT SEBAGAI MEDIA PEMBELAJARAN Friska Heriyanti; Anyan Anyan; Matius Stefanus Batu; Derlini Derlini; Hamid Wijaya; Arisman Arisman
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2023): Volume 4 Nomor 2 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

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

Abstract

Kegiatan pengabdian pada masyarakat ini bertujuan untuk memberikan pelatihan penggunaan Microsoft PowerPoint sebagai media pembelajaran kepada para guru di sekolah. Penggunaan teknologi informasi dan komunikasi dalam pembelajaran semakin meluas dan penting untuk memahami penggunaan Microsoft PowerPoint sebagai media pembelajaran yang efektif dan efisien. Beberapa isu terkait dengan penggunaan Microsoft PowerPoint sebagai media pembelajaran adalah kurangnya pemahaman tentang fitur-fitur yang ada dalam PowerPoint, kurangnya kreativitas dalam penyusunan materi, dan kurangnya penggunaan media tambahan yang mendukung dalam pembelajaran. Penelitian-penelitian sebelumnya menunjukkan bahwa penggunaan Microsoft PowerPoint dalam pembelajaran dapat meningkatkan minat dan motivasi belajar siswa serta mempermudah proses pembelajaran. Oleh karena itu, kegiatan pengabdian pada masyarakat ini dilaksanakan dengan metode pelatihan praktis dan interaktif. Hasil dari kegiatan ini menunjukkan bahwa para guru memiliki pemahaman yang lebih baik tentang fitur-fitur PowerPoint sebagai media pembelajaran dan mampu mengembangkan materi yang lebih kreatif dan menarik. Para peserta juga mampu memanfaatkan media tambahan yang mendukung pembelajaran seperti gambar, video, dan animasi. Kesimpulan dari kegiatan ini adalah bahwa pelatihan penggunaan Microsoft PowerPoint sebagai media pembelajaran sangat penting dilakukan untuk meningkatkan kualitas pembelajaran di sekolah. Oleh karena itu, diharapkan para guru dapat memanfaatkan Microsoft PowerPoint sebagai media pembelajaran dengan lebih optimal dan efektif.
Utilization of Borrasus flabellifer L. Palm Coir Activated with Potassium Hydroxide (KOH) as an Efficient Adsorbent for Rhodamine B Dye Removal Matius Stefanus Batu; Maria Magdalena Kolo; Maria Fridolina Taek; Agustina Rosalia Saka
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 3 (2023): June 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i3.7673

Abstract

This research paper presents the preparation and characterization of activated charcoal derived from palm coir (Borrassus flabellifer L.) that was activated using potassium hydroxide (KOH). The objective of this study was to assess the key characteristics of the activated charcoal, including moisture content, ash content, and surface area, and to determine the optimal conditions for the adsorption process of Rhodamine B dyes, such as adsorbent mass, contact time, and adsorbate concentration. Additionally, the surface morphology of coir charcoal before and after activation was investigated. The carbonization process was conducted at 300°C for 30 minutes, followed by activation using 1 M KOH for 24 hours. The resulting activated charcoal was subjected to various characterization techniques, including moisture content and ash content analysis, surface morphology examination using scanning electron microscopy (SEM), surface area determination using the Brenauer-Emmet-Teller (BET) method, and functional group identification through Fourier-Transform Infra Red (FTIR) spectroscopy. The findings revealed that the activated charcoal exhibited a water content of 1.537%, an ash content of 16.653%, and a surface area of 36.084 m2/g. The optimal conditions for the adsorption process were determined as follows: 1.0 gram of activated charcoal mass, 30 minutes of contact time, and a rhodamine B concentration of 30 ppm, resulting in adsorption efficiencies of 94.46%, 95.75%, and 94.42%, respectively. Furthermore, the surface morphology analysis demonstrated that non-activated charcoal exhibited irregular particle sizes and small pore sizes, while KOH-activated charcoal displayed an enhanced carbon pore surface and larger pore sizes.
KARAKTERISASI MINERAL LEMPUNG DESA MAURISU UTARA, KABUPATEN TIMOR TENGAH UTARA TERAKTIVASI KOH SEBAGAI BAHAN BAKU ADSORBEN Maria Magdalena Kolo; Matius Stefanus Batu; Metriana Matilda Taus
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 5 No. 1 (2023): Penelitian Kimia dan terapannya 2023
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v5i1.2482

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh variasi KOH terhadap struktur dan fasa pada lempung dan pengaruh variasi konsentrasi KOH terhadap situs asam basa pada lempung. Penelirian ini dilakukan di Laboratorium Fakultas pertanian, universitas Timor dan Laboratorium Universitas Negeri Malang.Lempung ini diaktivasi menggunakan KOH dengan variasi konsentrasi KOH 5%, 10%, 20% dan 25 % dengan suhu kalsinasi 300°C. Lempung aktivasi dikarakterisasi menggunakan XRF, XRD dan situs asam dan basa lempung dengan metode alkalimetri dan asidimetri. Hasil penelitian ini menunjukan bahwa penyusun lempung adalah Al dan Si yang menyusun mineral-mineral besar yaitu Kuarsa, montmonilorit dan kaolinit. Pengamatan selanjutnya menunjukan bahwa keasaman dan kebasaan lempung teraktivasi KOH lebih besar dari lempung aktivasi. Keasaman tertinggi pada konsentrasi 10% sebesar 2 mmol/g, sedangkan kebasaan tertinggi pada konsentrasi 25% sebesar 1,875 mmol/g.
Penggunaan Minyak Biji Feun Kase (Thevetia Peruviana) Sebagai Inhibitor Korosi Logam Seng Dalam Media Asam Noviana Getrudis Abi; Matius Stefanus Batu; Maria Magdalena Kolo
Saintek Lahan Kering Vol 6 No 1 (2023): JSLK JUNI 2023
Publisher : Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/slk.v6i1.2172

Abstract

Research on using Feun Kase (Thevetia Peruviana) seed oil as a corrosion inhibitor for zinc metal has been done. This study aims to determine the optimum conditions of immersion time, inhibitor concentration, and temperature in the corrosion inhibition process. Fun Kase seed oil was obtained by maceration extraction for five days using methanol solvent. The inhibition test using the weight reduction method was carried out with variations in immersion time, inhibitor concentration, and temperature to determine the inhibition efficiency and corrosion rate per year in the corrosion test process. From the research results, the optimum immersion time and inhibitor concentration were obtained at 3 hours of immersion time, and a concentration of 1000 ppm with an inhibition efficiency of 43.16% and a corrosion rate of 13.48 mph, and the optimum temperature was obtained at 30ºC with an inhibition efficiency value of 21.33 %.
Co-Authors Adolvina Kono Adu, R. E. Y. Agustina Rosalia Saka Antho Netty Siahaya Anyan Anyan Arisman Arisman Benu, Didi Benu, Didi Prasetyo Christanti, Cindy Claudia De Fretes, M. Derlini Dira Asri Pramita Donuata, Pujianti Bejahida Edi, Eduardus Emerensiana Naes Fajri, Rahmatul Fetronela Rambu Bobu Florian Mayesti Prima Remba Makin Fransiska Rika Friska Heriyanti Funan, Selviana Ermalinda Gelyaman, Gebhardus Djugian Gradiana Yosefa Nana Hamid Wijaya Kamaluddin Kamaluddin Kolo, Maria Magdalena Kolo, Sefrinus M. D Lourenco Pereira Soares Lukas Pardosi Mada, Grandianus Seda Mading, Ridwan Manikin, Gerosa Risa Vianey Maria Fridolina Taek Maria Rosanti Bani Marianna Caryna Kono Mata, Meri Helsiana Mere, Janrigo Klaumegio Metriana Matilda Taus Naisau, Mikhael Rifantus Noviana Getrudis Abi Pieter Jackson Lopez Dethan Regina Seran Risna Erni Yati Adu Saka, Agustina Rosalia Sanak, Maria Kotelma Siahaan, Desta Gloria Talan, Veronika Sofia Jaquelin Tea , Marselina Theresia Djue Tea, Marselina Theresia Djue Tefa, Maria Selestina tnunay, ite morina yostianti Welsiliana Wiguna, Gede Arya Wilda Lumban Tobing Yohana Ivana Kedang Yulida Amri