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All Journal Jurnal Sains dan Pendidikan Fisika Komunikasi Fisika Indonesia Phi : Jurnal Pendidikan Fisika dan Terapan Elkawnie JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX AL ISHLAH Jurnal Pendidikan Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Redoks JISTech (Journal of Islamic Science and Technology) Fisitek : Jurnal Ilmu Fisika dan Teknologi JOURNAL OF SCIENCE AND SOCIAL RESEARCH Jurnal Kumparan Fisika Jurnal Geofisika Best Journal (Biology Education, Sains and Technology) Jurnal Teknologi Bahan dan Barang Teknik Jurnal Fisika dan Terapannya CHEDS: Journal of Chemistry, Education, and Science EINSTEIN (E-JOURNAL) Jurnal Ilmu dan Inovasi Fisika
Abdul Halim Daulay
Program Studi Fisika Fakultas Sains Dan Teknologi UIN Sumatera Utara Medan
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Analysis of the physcial properties of particleboard from a mixture of cocoa pod peel powder and styrofoam ety jumiati; endang sagita ritonga; Abdul halim daulay
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 5, No 1 (2021)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v5i1.9986

Abstract

AbstractAbstract. This study aims to determine the effect of optimal physical properties and microstructure on particleboard samples. The percentage variations of cocoa pod peel powder mixture, styrofoam with epoxy resin adhesive were sample A (69:0:30), sample B (68:2:30), sample C (67:3:30), and sample D (66:4:30). 6:30). The materials were compressed were a hot press and a conditioning time of 14 days. sThe most optimum particleboard sample was found in sample B with values of density, moisture content, and thickness expansion, respectively 0,80 g/cm2, 7,74%, and 9,32%, and met the standards of SNI 03-2105- 2006. The surface shape of the particle board morphology in sample B shows the composition of the material with the adhesive binding optimally so that there are very few empty spaces or cavities. Keywords: cocoa pod husk powder, styrofoam, particle board, epoxy resin.
THE EFFECT OF VOLTAGES IN THE ELECTROCOAGULATION PROCESS ON DECREASING FE AND MN LEVELS Ria Muliyana; Masthura Masthura; Abdul Halim Daulay
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 3, No 2 (2019)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitek.v3i2.6836

Abstract

Research on the effect of electric voltage on the electrocoagulation process in reducing levels of heavy metals in water. This study aims to determine the metal content Fe (Iron) and Mn (Manganese) dug well water by varying the electrical voltage of 3, 6, 9, and 12 volts. this research use dug well water which come from Teluk Piyai Pesisir Village Kubu sub-district Rokan Hilir district Riau Province. Test results on the electrocoagulation method with electrical voltage 3 volt metal content Fe 0,002 mg/l and metal content Mn <0,0034 mg/l, electrical voltage 6 volt metal content Fe 0,003 mg/l and metal content Mn0,003 mg/l, electrical voltage 9 volt metal content Fe 0,004 mg/l and metal content Mn 0,007 mg/l, and electrical voltage 12 volt metal content Fe 0,001 mg/l and metal content Mn 0,005 mg/l. From variations in electrical voltage using aluminum electrodes that meet the Minister of Health Regulations standards RI No. 416/MENKES/PER/IX/1990 that on voltage 3, 6, and 12 volt. Keywords: Electrical Voltage, Electrocoagulation, and Heavy Metal.
Physic properties test for variations in the addition of kelor rods (moringa oleivera) on the lis of gypsum profile Ety Jumiati; Abdul Halim Daulay; Tri Ninda Malika
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 5, No 2 (2021)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v5i2.9972

Abstract

Research on composite materials has been carried out with variations in the addition of Moringa stems to the gypsum profile trim. And tested for variations in the composition of the mixture of Moringa stem fiber and gypsum flour, including: sample A (0% : 100%), sample B (2% : 98%), sample C (4% : 96%), sample D (6% : 94%), sample E (8% : 92%), sample F (10% : 90%) with FAS 0,5. The results of the characterization of the gypsum profiles produced on the physical properties test: density of 1.00-1.24 g/cm3. The value of water absorption is 24-45%. And the thickness development value is 2.27-4.82%, which meets the value of SNI 01-4449-2006. From the research data, the best sample is sample B with a density value of 1.14 g/cm3, the water absorption value is 27%, the thickness expansion value is 3.45%.Keywords :gypsum flour, list profil gypsum, moringa fiberThere has been a study of composite materials with variations of additionsKelor bars on the gypsum profile. And testing compound variationsKelor stem fibers and gypsum flour, among others: sampela (0%: 100%),Sample b (2% 98%), sample c (4% : 966), samel d (6%: 94%), sample e (8%92%), sample f (10% 90%) with fas 0.5. The fine print is the gypsum profileProduced on the test of frisis nature: a density of 1.00-1.24 g/cm3. Power valueAbsorption of 2445% water. And 2.27-4.82% thick development value, whichEnacting value o1-4449-2006. From the research data generated that sampleBest is on sample b with a density value of 1.14 g/cm, the value of permeable water279%, thick development value 3.45%.
PENGARUH SUHU AKTIVASI TERHADAP KUALITAS KARBON AKTIF BIJI DURIAN Sahdinal Adi; Masthura Masthura; Abdul Halim Daulay
JISTech (Journal of Islamic Science and Technology) Vol 7, No 1 (2022)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v7i1.12090

Abstract

This research was conducted to utilize durian seed waste into activated carbon and aims to identify the characteristics of the durian seed activated carbon produced from the activation temperature alteration. With an experimental method with a quantitative approach, the process of making durian seed activated carbon was tested by carbonization using an oven at a temperature of 200 oC for 180 minutes, then temperature activation with alterations of 500, 600, and 700 oC was held for 120 minutes in the furnace, and after it was added with chemical activation by using a 1,5 M H2SO4 solution for 24 hours of immersion. The analysis seen is to test the water content, volatile matter content, ash content, bound carbon content, and to see the surface morphology of activated carbon using SEM (Scanning Electron Microscopy). The results of the test obtained values for water content (6,83 – 12,73%), volatile matter content (16,98 – 26,89%), ash content (7,85 – 12,04%), bound carbon content(61,66 – 75,17%), with an increase in the activation temperature there is a tendency to decrease the value of water content, volatile matter content, ash content, and there is an increase in the value of bound carbon content. And visible cavities on the surface of the activated carbon along with the increase in activation temperature.
UJI FISIS BRIKET BIOARANG BERBAHAN BATANG TEH (CAMELLIA SINENSIS) Abdul Halim Daulay; Masthura Masthura; Heni Puspita Sari
JISTech (Journal of Islamic Science and Technology) Vol 7, No 1 (2022)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v7i1.12084

Abstract

Research has been done on the physicl test of charcoal briquettes made from tea stems (Camellia sinensis). This study aims to determine the physical characteristics of the charcoaI briquettes produced. This research is motivated by the increasing demand for human fuel, thus utilizing tea stems as the main ingredient in making briquettes. The sample variations used were tea tree trunk charcoaI and tapioca adhesive as an adhesive with a ratio of 90%:I0%, 80%:20%, 70%:30%, 60%:40%, and 50%:50%. The physical test carried out included water content, density, and calorific value. The results obtained from the physical test of biochar briquettes with the best quality approaching the quality standards of Indonesian briquettes were obtained on sample with a composition (70%:30%) with the value of water content, density, and calorific value, each of which was 5 .70%, 0.55 g/cm3, and (-) 7.62 cal/g.
PENGARUH VARIASI PEREKAT TERHADAP NILAI KALOR BRIKET DARI SERBUK DAUN TEH Masthura Masthura; Abdul Halim Daulay; Haryu Wanda Desgira
JISTech (Journal of Islamic Science and Technology) Vol 7, No 1 (2022)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v7i1.12083

Abstract

Research has been carried out on the effect of adhesive variations on the heating value of briquettes made from tea leaf powder. This study aims to determine the quality of the briquettes produced, this research is motivated by the increasing need for human fuel, so that researchers use tea leaf powder as the main ingredient in making briquettes. The variation of the sample used was tea leaf powder using adhesives in the form of tapioca, wheat flour and molasses as adhesives. With a ratio of 80%:20% and 70%:30%. The analysis carried out is the Calorific Value test. The results obtained from the Calorific value test of briquettes with the best quality approaching the quality standards of Indonesian briquettes were obtained in sample C2 with a composition (70%:30%) which resulted in a heat absorption value of 112.86 cal/gram.
Pengaruh Kitosan terhadap Kristalinitas dan Morfologi Partikel Lithium Titanat Bharata Dewanto; Bambang Sunendar Purwasasmita; Ahmad Nuruddin; Abdul Halim Daulay; Susanto Sigit Rahardi
Jurnal Teknologi Bahan dan Barang Teknik Vol 4, No 2 (2014)
Publisher : Center for Material and Technical Product

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (421.665 KB) | DOI: 10.37209/jtbbt.v4i2.46

Abstract

Battery consists of cathode, anode, and electrolyte. Spinel Lithium Titanate, known as Li4Ti5O12spinel is an alternative material for anode substituting carbon due to its ability to generate large current for high-discharged battery. It can be applied for the electric car battery.A commonly used battery synthesis method is High Energy Ball Milling. However, that method is time consuming and require massive amount of energy. In this research, Li4Ti5O12­synthesized as an anode for lithium ion battery through sol-gel method with chitosan variable as the dispersing agent. Formed gel then calcinated with temperature of 750oC. Synthesized powder was characterized using XRD (X-ray Diffractometry) and SEM (Scanning Electron Microscopy) methods.Li4Ti5O12 was successfully synthesized with sol-gel method and chitosan as the dispersing agent. Based on the XRD characterization result, at the 750oC calcination temperature, 95–97%. Li4Ti5O12 phase was formed. Chitosan played a good role of being the dispersing agent because it was able to increase crystallinity, reduce the size of Li4Ti5O12powder particle, and reduce the particle agglomeration. Observation with SEM shows that the particle size is categorized as submicron, which size is ranged in 75–300 nm. It is potential to be used as the material for lithium battery anode that come near to theoretical capacity. Baterai terdiri dari katoda, anoda, dan elektrolit. Lithium titanat spinel atau Li4Ti5O12  spinel adalah material anoda alternatif untuk menggantikan karbon karena memiliki kemampuan untuk memberikan arus besar yang dapat diaplikasikan sebagai baterai pada mobil listrik.Metode yang saat ini sering digunakan untuk pembuatan baterai adalah High Energy Ball Milling, namun energi yang dibutuhkan sangat besar dan waktu pengerjaan dengan metode ini pun cukup lama. Dalam penelitian ini dilakukan sintesis serbuk Li4Ti5O12 ­sebagai anoda baterai lithium ion dengan metode sol-gel dengan variabel kitosan sebagai dispersing agent. Gel yang terbentuk dikalsinasi pada variasi suhu 750oC. Serbuk hasil sintesis dikarakterisasi menggunakan metode XRD (X-ray Diffractometry) dan SEM (Scanning Electron Microscopy). Pada penelitian ini telah berhasil disintesis Li4Ti5O12 dengan metode sol-gel dengan  kitosan sebagai  dispersing agent. Pada suhu kalsinasi 750oC terbentuk 95–97% fasa Li4Ti5O12 yang diketahui dari berdasarkan hasil karakterisasi XRD, kitosan berperan baik sebagai dispersing agent karena dapat meningkatkan kristalinitas, memperkecil ukuran partikel dari serbuk Li4Ti5O12, dan mengurangi aglomerasi partikel. Hasil pengamatan dengan SEM menunjukkan bahwa ukuran dari partikel tergolong pada ukuran submikron yaitu berkisar 75–300 nm yang berpotensi sebagai material anoda baterai lithium yang mendekati kapasitas secara teori.
KARBON AKTIF TEMPURUNG BUAH NIPAH (NYPA FRUTICANS) MENGGUNAKAN AKTIVATOR NACL: Lisa Astari, Abdul Halim Daulay, Ridwan Yusuf Lubis Lisa Astari; Abdul Halim Daulay; Ridwan Yusuf Lubis
JOURNAL ONLINE OF PHYSICS Vol. 8 No. 1 (2022): JOP (Journal Online of Physics) Vol 8 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v8i1.20292

Abstract

Tempurung buah nipah dapat dimanfaatkan untuk menghasilkan karbon aktif setelah melakukan proses aktivasi secara fisika dan kimia hal ini terlihat dari mayoritas hasil pengujian yang telah memenuhi standar arang aktif teknis. Penelitian ini bertujuan untuk mengetahui karbon aktif tempurung buah nipah dengan karakteristik yang paling optimum. Metode yang dapat digunakan ialah metode eksperimental dengan pendekatan secara kuantitatif. Proses karbonisasi dilakukan menggunakan oven dengan suhu 500 ºC dalam waktu 1 jam. Proses aktivasi karbon dilakukan yaitu dengan menggunakan furnace pada suhu 105 ºC selama 2 jam. Aktivasi kimia dilakukan menggunakan larutan NaCl dengan variasi konsentrasi 0, 4, 6, dan 8 M, diaduk menggunakan magnetic strirrer. Analisis yang dilakukan yaitu uji kadar air, kadar zat mudah menguap, kadar abu, dan kadar karbon.Metode karakterisasi yang digunakan adalah Scanning Electron Microscopy (SEM) dan UV-Vis (ultra violet visible). Hasil pengukuran kadar air adalah sebesar 5,47 – 7,72%, kadar zat mudah menguap sebesar 24,62 – 36,10%, kadar abu sebesar 8,79 – 26,45%, dan kadar karbon sebesar 37,45 – 66,59%. Seiring dengan peningkatan konsentrasi aktivasi maka cenderung terjadi penurunan pada nilai kadar air, kadar zat mudah menguap, dan kadar abu. Serta terjadi kenaikan pada nilai kadar terikat. Mikrostruktur permukaan karbon aktif tempurung buah nipah menunjukkan terbentuknya pori-pori seiring dengan bertambahnya konsentrasi aktivasi. Karbon aktif tempurung buah nipah dengan karakteristik yang optimum dihasilkan pada konsentrasi aktivasi 8 M.
ANALISIS BOD, COD, DAN TSS PADA LIMBAH INDUSTRI MINYAK SAWIT DENGAN METODE FILTRASI MENGGUNAKAN KARBON AKTIF TEMPURUNG BIJI KARET Ety Jumiati; Abdul Halim Daulay; Siti Rahma Daulay
Komunikasi Fisika Indonesia Vol 19, No 3 (2022)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.19.3.136-140

Abstract

This research has carried out the quality of palm oil wastewater before filtration, after filtration, and the most optimal variation. In this study using activated carbon seed shell, zeolite, and silica sand with sample variation A: (60%:20%:20%) , B: (50%:25%:25%), and C: (40% :30%:30%). Tests in this study include: (BOD, COD and TSS). The results of testing the palm oil industrial waste before the filtration process did not meet the RI Minister of Environment Regulation No. 5 tahun  2014, while after the filtration process it met the requirements of the RI Minister of Environment Regulation No. 5 tahun 2014, and the most optimal variation in this test was sample A with value 60% activated carbon.
ANALISIS UJI KIMIA KESADAHAN DAN BESI PADA AIR SUNGAI HULU BANGKO DENGAN MEDIA FILTRASI KARBON AKTIF KULIT KACANG TANAH Ety Jumiati; Abdul Halim Daulay; Putri Indah Sari
Komunikasi Fisika Indonesia Vol 19, No 3 (2022)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.19.3.141-145

Abstract

The filtering of river water has been carried out with the aim of knowing the edvantages of the river water upstream of Bangko before the filtration process is carried out, after the filtrations proces is caried out, and to determine the most optimum variation. In this study using the composition of activated carbon of peanut shells, silica sand, manganese, and zeolite with sample variations A (30% : 30% : 20% : 20%), B (35% : 25% : 20% : 20%), and C (40% : 20% : 20% : 20%). In this study, the chemical test parameters were: (hardness, and iron). The results of testing the river water before the filtration process has not met the PERMENKES RI No. 32 of 2017. Meanwhile, after the river water filtration process has met the clian waters standard based on the PERMENKES RI No. 32 of 2017. And the optimum variation is sample C with an activated carbon value of 40%.
Co-Authors Adelyna Oktavia Nasution Ahmad Nuruddin Aida Febriana Tanjung Amanda, Syahna Dwi Anggun Hermi Palupi Apriyana, Resi Armais Mutiah Abdul Hidayat Arninda Pratiwi asnitha aritonang Aulia Farihanum Aulia Khusnul Arif Z.A Ayu Saputri Saragih Bambang Sunendar Purwasasmita Bharata Dewanto Daulay, Zubair Aman Daulay, Zubair Aman Dickiy Akbar Dita Khairunnisa endang sagita ritonga Ependi, Fadli Ety Jumiati Ety Jumiati Ety Jumiati Fadhilah, Elsa Harahap, Gery Syahputra harahap, mira yanti Haryu Wanda Desgira Heni Puspita Sari Husna, Afifah Husna, Afifah Hutauruk, Siti Aulia Indah Sawitri Irmawati Koto Jefri Ardiansyah Nasution Jumiati, Ety Jumiati, Ety Juwita Juwita Kartika Manalu Khairiah, Khairiah Khairiah, Khairiah Khairiah, Khairiah Khairul, Fikri Khairunnisa, Devi Khobir, Mustofa Lailatul Husna Lubis Lansari Daulay Laras Ashari Setiawan Leli Mariati Situmorang Lespita, Jeni Dhea Lisa Astari Lisa Herdiana Sinurat Lubis, Fadilah Azzahra Lubis, Hilwa Salsabila Lubis, Lailatul Husna Lubis, Ridwan Yusuf Lubis, Rizky Wahyuni Masthura Masthura Masthura Masthura, Masthura Miftahul Husnah Miftahul Husnah Miftahul Jannah Daulay Miftahul Jannah Daulay Minta Ito Muhammad Amrin Siregar Muhammad Amrin Siregar Mulkan Iskandar Nasution Mulkan Iskandar Nasution Nadilla Putri Nadjara Yolanda Nanda Putri Afrilda Nasution, Annisa Wulan Dhari Nasution, Nazaruddin Nazaruddin Nasution Nita Zahara Nasution Nur&#039;aini Fadillah Nurainun Br Pasaribu Nurhayati Nurhayati Nurika Khalila Daulay Nurmaisah Harahap Ong, Russell Pasaribu, Adella Ayu Putri Pinem, Lela Feranita Prabowo, Diki Purnama Indah Lase Putra, Tyas Hermawan Putri Dwi Ananda Putri Indah Sari Putri Rabiatul Amalia Sitorus Rahmasari Pohan Ramidin, Ramidin Ratni Sirait Ratni Sirait Reflina Reflina Ria Muliyana Ridwan Yusuf Lubis Rika Ramtika Rika Safitri Riri Angriani Nasution Rosari, Ruri Sahdinal Adi sari, Bella Novita selvia, niki Sholihatul Hamidah Daulay Sihombing, Zulkarnain Sirait, Ratni Siregar, Shinta Marito Siska Siska Siti Hawa Hasibuan Siti Maysarah Siti Nur Aisyah Siti Rahma Daulay Sitorus, Widia Arti Syafitri Sri Wahyuni Ritonga Sucitawati, Nopita Sugeng Sugeng Susanto Sigit Rahardi Susi Nurindah Tri Ninda Malika Tunjiah , ufik eliati tumanggor Utari, Dinda Widia Arti Syafitri Widya, Eka Zafira Amalia Nasution Zubair Aman Daulay