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All Journal Jurnal Periodic Jurusan Kimia UNP JURNAL PENDIDIKAN TAMBUSAI Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Ekonomi Syariah Pelita Bangsa MASALIQ: Jurnal Pendidikan dan Sains Jurnal Rekayasa elektrika Gudang Jurnal Multidisiplin Ilmu Asian Journal of Science, Technology, Engineering, and Art
Septian Budiman
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Dedradasi Metilen Biru Secara Fotolisis Dengan Katalis Cdots Doping Au Septian Budiman; Hary Sanjaya; Isnaeni Isnaeni; Umar Kalmar Nizar; Edi Nasra
Jurnal Periodic Jurusan Kimia UNP Vol 11, No 3 (2022): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v11i3.115918

Abstract

The degradation of methylene blue was carried out by photolysis method with the help of a Cdots/Au catalyst. This study aims to determine the optimum concentration of dopen Au for Cdots and the optimum time for degradation of methylene blue with the help of a Cdots/Au catalyst. The photolysis method was carried out in a reactor equipped with 3 15 watt lamps with a UV wavelength of 254 nm. The absorption of methylene blue was measured using a spectrophotometer UV-Vis. The optimum Au dopen results were obtained at a concentration of 25 ppm with a degradation percentage of 39.94% and the optimum time for photolysis degradation was 6 hours of irradiation with a degradation percentage of 70.28%.
Prototype Robot Pemadam Api Beroda Menggunakan Teknik Navigasi Wall Follower Ery Safrianti; Rahyul Amri; Septian Budiman
Jurnal Rekayasa Elektrika Vol 10, No 2 (2012)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.464 KB) | DOI: 10.17529/jre.v10i2.134

Abstract

Fire Robot serves to detect and extinguish the fire. The robot is controlled by the microcontroller ATMEGA8535 automatically. This robot contains of several sensors, such as 5 sets of ping parallax as a robot navigator, a set UVTron equipped with fire-detecting driver, DC motor driver L298 with two DC servo motors. The robot was developed from a prototype that has been studied previously with the addition on the hardware side of the sound activation and two sets of line detector. The robot will active if it receives input from the sound activation unit and will start to find the fire with “search the wall” navigation techniques. The line sensor was used as a door and home detector and circle the fire area.To extinguish the fire, this robot uses a fan driven by a BD139 transistor circuit. The overall test results show that the robot can detect the presence of the fire in each room. The robot also can find the fire and extinguish it within 1 minute.
Prototype Robot Pemadam Api Beroda Menggunakan Teknik Navigasi Wall Follower Ery Safrianti; Rahyul Amri; Septian Budiman
Jurnal Rekayasa Elektrika Vol 10, No 2 (2012)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v10i2.134

Abstract

Fire Robot serves to detect and extinguish the fire. The robot is controlled by the microcontroller ATMEGA8535 automatically. This robot contains of several sensors, such as 5 sets of ping parallax as a robot navigator, a set UVTron equipped with fire-detecting driver, DC motor driver L298 with two DC servo motors. The robot was developed from a prototype that has been studied previously with the addition on the hardware side of the sound activation and two sets of line detector. The robot will active if it receives input from the sound activation unit and will start to find the fire with “search the wall” navigation techniques. The line sensor was used as a door and home detector and circle the fire area.To extinguish the fire, this robot uses a fan driven by a BD139 transistor circuit. The overall test results show that the robot can detect the presence of the fire in each room. The robot also can find the fire and extinguish it within 1 minute.
Pengaruh Tingkat Inflasi, Fluktuasi Harga Emas, Dan Jumlah Nasabah Terhadap Penyaluran Pembiayaan Rahn Pada PT. Pegadaian (PERSERO) Periode 2012-2021 Diah Puspita Sari; Budiman, Septian
Jurnal Ekonomi Syariah Pelita Bangsa Vol. 8 No. 02 (2023): JESPB Edisi Oktober 2023
Publisher : DPPM Universitas Pelita Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37366/jespb.v8i02.972

Abstract

This study aims to analyze PT Pegadaian (PERSERO)'s distribution of rahn financing, which is influenced by inflation rates, fluctuations in gold prices, and the number of customers. This research is quantitative, using secondary data. In collecting data, this study uses two methods, namely the method of documentation and the method of literature. The samples used were 10 samples from PT. Pegadaian's financial statements from 2012 to 2021. In this study, the data analysis technique used is multiple linear regression analysis. Data processing in this study uses e-views software version 10. Partial test results state that (1) the inflation rate has a negative and insignificant effect on the distribution of Rahn financing; (2) fluctuations in the price of gold have a significant effect on the distribution of Rahn financing; and (3) the number of customers has a negative and insignificant effect on the distribution of Rahn financing. Rahn's financing distribution is influenced by the inflation rate, gold price fluctuations, and the number of customers based on simultaneous test results.
Degradasi Zat Warna Metanil Yellow dengan Katalis TiO2 Menggunakan Metode Fotosonolisis Reflia, Tiwi; Sanjaya, Hary; Budiman, Septian
Periodic Vol 13, No 2 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i2.124978

Abstract

The photosonolysis method has been investigated to degrade the metanil yellow in a sample solution using the catalyst of TiO2. This study aims to determine how the effect of adding catalyst mass to the degradation of metanil yellow. The variation of the mass of the catalyst used to degrade the metanil yellow dye is from 0.5 grams, 0.1 grams, 0.15 grams, and  0.25 grams at 120 minutes according to the optimum time. The UV-Vis spectrophotometer was used to calculate the absorbance of metanil yellow before and after degradation processes, while FTIR was used to determine the spectrum and functional groups before and after degradation. The results of the measurement of the maximum wavelength of the color of metanil yellow using a UV-Vis spectrophotometer were 434 nm with an absorbance value of 0.267. In the variation of the catalyst mass, the optimum mass obtained at 0.1 grams of TiO₂ catalyst with %D obtained was 35,58 %. In this study, the presence of hydroxyl radicals produced during photosynthesis plays an important role in degrading metanil yellow.
Pengaruh Aditif MEA terhadap Sifat Listrik Lapisan Tipis Sefriyani, Sefriyani; Sanjaya, Hary; Budiman, Septian
MASALIQ Vol 4 No 1 (2024): MASALIQ: Jurnal Pendidikan dan Sains
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2134

Abstract

This research discusses the effect of adding MEA additives on the synthesis of CuSnO3 thin films using the dipcoating method. This type of research uses experimental.. Based on UV-DRS analysis, the optimum bandgap data was obtained at 1.8034 eV. The addition of additives greatly influenced the reduction of the bandgap. With FPP, a good resistance of 38.59 Ω was obtained at 6x immersion, with a resistivity of 0.000330 Ωm with a conductivity value of 3030.30 Ω-1m-1. From the resulting data it can be concluded that the thicker the layer, the lower the resistance value, and the lower the resistivity, the better the electrical conductivity.
Sintesis dan Aplikasi CuSnO3 sebagai Katalis pada Proses Degradasi Zat Warna Methyl Orange dengan Metode Fotolisis Putri, Tiara Jelita; Sanjaya, Hary; Budiman, Septian
MASALIQ Vol 4 No 1 (2024): MASALIQ: Jurnal Pendidikan dan Sains
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2672

Abstract

Research on the degradation of methyl orange dye using the photolysis method using a copper tin oxide (CuSnO3) catalyst has been carried out. The aim of this research is to see how catalyst activity influences variations in methyl orange degradation time, whether the addition of MEA (Monoethanolamine) is more effective for photocatalyst applications. In this research, a concentration of 10 ppm of methyl orange was used, 40 mL of which was degraded with a CuSnO3 catalyst of 0.05 grams. This degradation process involves treatments including CuSnO3 catalyst without MEA; 1 mL, 1.5 mL, and 2 mL MEA. The characterization used in this research is UV – VIS. The analysis results showed that the percentage of degradation without MEA at a time variation of 240 minutes was 64.43%, while at 1 mL it was 19.77%, 1.5 mL 16.92%, and 2 mL 20.91%.
Pengaruh Aditif Monoethanolamine (MEA) terhadap Struktur Kristal Copper Tin Oxide Yulfitrianti, Marlina; Sanjaya, Hary; Budiman, Septian
Asian Journal of Science, Technology, Engineering, and Art Vol 1 No 2 (2023): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v1i2.2046

Abstract

Solar cell technology is a technology that can create electrical energy using semiconductor devices that have p-n connections. Copper tin oxide CuSnO3 (CSO) is an amorphous oxide semiconductor with a band gap of 2.0–2.5 eV. The method used is sol gel with the addition of one of the commonly used additives, namely Monoethanolamine (MEA). This research aims to determine the effect of monoethanolamine additives on the crystal structure of Copper Tin Oxide using the Sol Gel method. This research is quantitative research by collecting data from previous research and then conducting research using specified methods and objects. The results of research using XRD showed particle sizes ranging from 40.10 – 50.02 nm and the results obtained without additives were 21.06 nm. This is because the addition of additives greatly influences the crystal size and crystal Structure.
Pengaruh Konsentrasi Perkursor terhadap Sifat Listrik dari Lapisan Tipis Rindiani, Maiyola; Sanjaya, Hary; Budiman, Septian
Asian Journal of Science, Technology, Engineering, and Art Vol 1 No 2 (2023): Asian Journal of Science, Technology, Engineering, and Art
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/ajstea.v1i2.2068

Abstract

A thin layer is a layer made from organic or non-organic materials which are semiconductors, conductors and insulators. This research aims to determine the effect of precursor concentration on the electrical properties of thin films. Variations in precursor concentration used were 0.025 M, 0.05 M, and 0.075 M. CuSnO3 thin films were characterized by UV-DRS, XRD, FPP, and SEM. The method used in this research is sol-gel. The sol-gel process is used because of its ability to control the surface properties of oxide composites. The results of the band-gap test the variation in precursor concentration obtained by the band-gap value becomes smaller with increasing concentration. The lowest band-gap value in variations in adding an MEA volume of 2 ml, the optimum band-gap value is 2.1706 eV. The results of the FPP test on a thin layer of CuSnO3 precursor concentration of 0.05 M with an optimum MEA of 2 ml obtained a resistivity value of 0.0005671 Ωm with a conductivity value of 173.5809 Ω^(-1) m^(-1).
Pengaruh Penambahan Monoethanolamine (MEA) Sebagai Aditif Dalam Sintesis dan Karakterisasi Lapisan Tipis Tembaga (II) Oksida (CuO) Viony Anjelina; Sanjaya, Hary; Budiman, Septian
Jurnal Pendidikan Tambusai Vol. 8 No. 1 (2024): April 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i1.13787

Abstract

Penelitian ini dilakukan untuk mengetahui pengaruh penambahan aditif MEA terhadap kualitas lapisan tipis CuO yang disintesis menggunakan metode sol gel dipcoating. Penentuan band gap optimum lapisan tipis CuO dikarakterisasi menggunakan UV-DRS. Dalam pembuatan lapisan tipis CuO ini menggunakan volume zat aditif MEA yang bervariasi yaitu 1,0 ml, 1,5 ml, 2,0 ml, 2,5 ml, dan 3,0 ml. Nilai bandgap optimum yang telah didapatkan yaitu pada volume MEA 2,5 ml, dikatakan optimum karena nilai band gap yang didapatkan paling mendekati range terkecil band dari yang lainnya. Hasil band gap berturut-turut yang diperoleh yaitu, 1,36 eV, 1,34 eV, 1,29 eV, 1,26 eV, 1,24 eV dan 1,16 eV. Dari hasil yang telah di uji nilai bandgap lapisan tipis CuO mengalami penurunan, dibandingkan dengan tanpa zat aditif monoethanolamine (MEA). Bandgap optimum dari hasil karakterisasi UV-DRS adalah pada variasi penambahan volume MEA 2,5 mL yaitu dengan band gap 1,24 eV. Dikatakan optimum karena nilai bandgap yang didapatkan paling mendekati range terkecil band dari yang lainnya. Penambahan variasi monoethanolamine menyebabkan adanya pengaruh lapis tipis yang dihasilkan yaitu terjadinya penyempitan celah pita energi yang dapat menyebabkan ukuran butiran partikel semakin kecil sehingga luas permukaan juga semakin besar.
Co-Authors Desy Kurniawati Diah Puspita Sari Edi Nasra Ery Safrianti Hary Sanjaya Hary Sanjaya Hary Sanjaya Isnaeni Isnaeni Jeningsih Lilis karlina, Lilis Mifthahul Jannah, Nurul Mulia, Melindra Nurul Husna Patriela, Miftah Putri Rahayu, Nanda Putri, Tiara Jelita Rahyul Amri Reflia, Tiwi Rindiani, Maiyola Saddam Husein, Saddam Sari, Trisna Kumala Sefriyani, Sefriyani Soviah, Sadri Sri Benti Etika Suci Hanim Faizah Umar Kalmar Nizar Viony Anjelina Waarsyat, Fadli Yulfitrianti, Marlina