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All Journal International Journal of Renewable Energy Development BERKALA FISIKA Jurnal Ilmu Dasar POSITRON BERKALA SAINSTEK Jurnal Sains dan Teknologi Kimia P2M STKIP Siliwangi UNEJ e-Proceeding The Journal of Educational Development Warta Ardhia : Jurnal Perhubungan Udara Ilmu Budaya: Jurnal Bahasa, Sastra, Seni, dan Budaya Diksa : Jurnal Pendidikan Bahasa dan Sastra Indonesia Pedagogik Journal of Islamic Elementary School JURNAL PENDIDIKAN TAMBUSAI JURNAL KAJIAN TEKNIK SIPIL Ghancaran: Jurnal Pendidikan Bahasa dan Sastra Indonesia Logistik English Focus: Journal of English Language Education Jurnal Sisfotek Global Indonesian Journal of Global Health research Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Journal of English Language and Education Jurnal Abdi Masyarakat Indonesia Journal of Education Research Cakrawala: Jurnal Pendidikan Jurnal Pendidikan Teknik dan Vokasional Jurnal Pengabdian Masyarakat Fakultas Teknik: Jurnal Abditek Maritime Park: Journal Of Maritime Technology and Socienty ASEAN Journal of Empowering Community EJOIN : Jurnal Pengabdian Masyarakat Indonesian Chimica Letters
Tri Mulyono
Jurusan Kimia , FMIPA, Universitas Jember, Jember
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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Synthesis and Characterization Thin Film TiO2 as Degrading Procion Red MX-8B Textile Dye Almu’minin, Achmad Sholikhudin; Haryati, Tanti; Mulyono, Tri
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (375.367 KB) | DOI: 10.19184/jid.v17i2.2685

Abstract

TiO2 photocatalyst is one of type semiconductor that is often used in textile dyes photodegradationmethod which characteristics are influenced by the size of crytal. Synthesis of TiO2 photocatalystscan be done by several methods, one using the sol-gel method. By treating variations in thecomposition of the reactans and treatment of synthesis in sol-gel method, the size of the TiO2crystals can be controlled to produced the desired characteristics. This study has been made ofTiO2 photocatalysts in the form of thin-layer films using sol-gel method with annealing process ata temperature of 550oC. This study examines the effect of the concentration of precursor TTIP andhydrolysis ratio of the crystal structure, crystallinity, the band gap energy, and photocatalystactivity to degrade procion red mx-8b dye compound. The result obtained is known that the crystalsynthesized has structure of TiO2 anatase. Value crystal size, crystallinity, the band gap energy,and percent degradation has a value that depends on the composition of TTIP concentration andhydrolysis ratio. Although the results showed morphology of TiO2 particle indivcate that large sizeand crystallinity value is still low, but that is interesting each of the measurement results mutuallysupport each other.Keywords: photocatalyst, TiO2, Sol-gel, TTIP concentration, hydrolysis ratio
Determination of Sucrose Content in Sugarcane Liquids Through Angular Dispersion Angle Measurement Misto, M.; Mulyono, Tri; Cahyono, Bowo Eko
Jurnal ILMU DASAR Vol 20 No 2 (2019)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.885 KB) | DOI: 10.19184/jid.v20i2.8497

Abstract

In the sugar industry, it is important to measure the sucrose content of sugar cane so that an electronic system is needed for measurement. The system was employed an array photodiode as a sensor, red and green laser, operational amplifiers (opamp), an analog to digital converter from Arduino, and a computer. The main operation of the measurement system was conducted by the sensor and controller system in the computer. The controller was programmed with Basic program, a program that suitable for the device. The signal from array photodiode sensor is send to signal processing unit (opamp) and converted to digital signal by ADC. Then the digital code is countered by controller and displayed by monitor computer. Keywords: sugar content, array photodiode, Arduino.
The Application of Cows Rumen for Electricity Generation Through The Implementation of A Ceramic-Based Microbial Fuel Cell System Mulyono, Tri; Hutamia, Diah Meirendi; Rofi’i, Imam; Misto, M.; Nugroho, Agung Tjahjo; Hariadi, Yuda Cahyoargo
Jurnal ILMU DASAR Vol 25 No 1 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i1.44448

Abstract

The growth in population is not adequately matched by the corresponding increase in energy demand. The imperative for prioritizing the exploration of alternative energy sources that possess attributes of safety, affordability, and ample access to raw materials cannot be overstated. An energy source with significant potential is a microbial fuel cell (MFC)-based energy source. This study aims to investigate the utilization of cow rumen as a substrate and source of nutrition in the bioenergy system of microbial fuel cells (MFCs). The present study aims to investigate the impact of substrate concentration and bacterial incubation duration derived from bovine rumen bacteria on the attainment of optimal power density. The research employed a Dual Chamber Microbial Fuel Cell (MFC) device using a Proton Exchange Membrane (PEM) constructed from ceramic materials. Daily observations were conducted over a period of 30 days. The performance of MFC was assessed utilizing the polarization technique. The findings indicated that altering the proportion of bovine rumen bacterial substrates and the duration of bacterial incubation had an impact on the power density seen in the Microbial Fuel Cell (MFC) system. The optimal conditions were attained when the substrate concentration reached 3640 ppm and after 7 days, resulting in a maximum power density of 864 mW/m2.
Design and Construction of Electrical Energy Source Panel Based on Thermoelectric Generators on Mild Steel Galvalume Maulana, Bima Wahyu; Misto, M.; Arkundato, Artoto; Mulyono, Tri
Jurnal ILMU DASAR Vol 24 No 2 (2023)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v24i2.26255

Abstract

A thermoelectric generator (TEG) is a device that converts heat energy into electrical energy. The working principle of this device is based on Seebeck's law, namely this device will produce electrical energy if the cold side and hot side of this device have a temperature difference value of . This device can be used for generator panels whose heat source comes from the sun. The cold side of the TEG is conditioned by utilizing water fluid which is passed over the heatsink. The temperature difference between the hot and cold sides of the TEG generates an electric voltage through the Seebeck effect. The parameters observed in the research on electricity generation using this TEG are voltage, current, electric power, and the temperature difference between the hot and cold sides. The resulting parameter values are as follows; average voltage (0.5495 volts), average electric current strength of 0.04 A, average electric power (0.022 watts). mean temperature difference (16.006 oC). The largest average Seebeck coefficient is 0.0413 V/oC.
Simultaneous Determination of Magnesium (Mg2+) and Ammonium (NH4+) by Flow Injection Analysis Kholifa, Mulik; Mulyono, Tri; Muflihah, Yeni Maulidah
Jurnal ILMU DASAR Vol 19 No 1 (2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (623.294 KB) | DOI: 10.19184/jid.v19i1.5483

Abstract

An automatic method for the simultaneous determination of magnesium and ammoniun by flow injection analysis is described. This analysis used two detectors, potentiometry and spectrophotometry, for the determination of magnesium and ammonium simultaneously. Potentiometric detectors are used to detect ammonium ions, whereas spectrophotometer detectors are used to detect the presence of magnesium ions. The performance of the FIA system includes linear range linearity, limit of detection, sensitivity, reproducibility and recovery test. Spectrophotometry FIA showed good performance with several criteria of linearity with regression value of 0.9918, the detection limit of 0.06 ppm, a sensitivity of 0.0115, repeatability of less than 2% and the percent recovery of 91,6%. While potentiometric FIA showed th performance with several criteria of linearity with regression value of 0.9896, the detection limit of 0.17 ppm, a sensitivity of 40.747 mV per decade of concentration, repeatability of less than 2% and the percent recovery of 89,7%. Keywords: Flow Injection Analysis, spectrophotometry, potensiometry, simultaneous
Utilization of Tofu Liquid Waste with Ceramic-Based Microbial Fuel Cell (MFC) Technology Wafi, Moh. Abduh; Ahmad, Mutiara Garnet; Misto, Misto; Cahyono, Bowo Eko; Mulyono, Tri; Mutmainnah, Mutmainnah
Jurnal ILMU DASAR Vol 25 No 2 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i2.29949

Abstract

The application of ceramic-based Microbial Fuel Cells (MFCs) for the treatment of tofu liquid waste presents a promising and environmentally sustainable approach. The purpose of this study was to determine the effect of adding variations in substrate concentration and to determine the effect of variations in the surface area of the electrode (anode and cathode), resulting in a maximum power density value for a period of 13 days of measurement. The initial step is measuring the voltage and current with the substrate concentration without a dilution process, then the concentration variations are carried out by dilution 10 times, 8 times, 5 times, 4 times, and 2 times on ceramics with a diameter of 8 cm. The second step is measuring the voltage and current by varying the surface area of the electrodes (cathode and anode). The results of the measurements obtained that the maximum power density value obtained was 188.23 mW/m2 without a dilution process, namely with a concentration of 3640 ppm for the third day. Meanwhile, the results of the measurement of the variation of the electrode surface area obtained a maximum power density value of 205.88 mW/m2 on the electrode surface area of 3.57 m2 for the third day. The more surface area of the electrode given at the time of measurement, the more bacteria contact the electrode, causing the resulting power density value to be even greater.
PENINGKATAN PENGETAHUAN SISWA SMK DI BEKASI UNTUK PENGETAHUAN AKAN PEMBUATAN BETON TEMBUS SEBAGAI UPAYA MENGATASI DEGRADASI LINGKUNGAN MELALUI WEBINAR Mulyono, Tri; Purnomo, Adhi; Anisah, Anisah
P2M STKIP Siliwangi Vol 7 No 2 (2020): Volume 7 Nomor 2, November 2020
Publisher : IKIP Siliwangi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/p2m.v7i2p%p.2015

Abstract

AbstractEnvironmental issues using green materials are becoming attractive as an effort to mitigate floods with pervious asphalt, pervious concrete, paving blocks, and plastic grid pavers, allowing surface runoff to seep through the surface to the ground layer and gravel. On the other hand, quality resources will encourage economic development so that people will be more prosperous. Through webinars by providing additional knowledge of vocational students to improve competence in making pervious concrete. The event will be held on Saturday, 12 September 2020 through Webinar with the “Zoom Cloud Meeting” application. The number of participants who took part in the activities of 5 SMK in Jakarta and Bekasi was 67 participants. The results of the evaluation using the pre-test and post-test question instruments for 61 respondents stated that (1) Introducing to vocational students or vocational graduates about regulations in the construction industry related to the competence of making pervious concrete for local pavement for prospective construction workers as an effort to reduce the impact environmental degradation "increased by 30,426% from 27,869% or those who understood increased by 21 people to 38 people, (2) Increased knowledge of making pervious concrete for local pavement for prospective construction workers increased by 23% to 46% or there was an increase who knew 15 - 28 student.Keywords:  Previous Concrete, Local Pavement, Vocational StudentAbstrakIsu-isu lingkungan menggunakan material ramah lingkungan menjadi menarik sebagai upaya mitigasi banjir dengan aspal tembus atau (pervious), beton tembus, paving blok, dan paving plastic (plastic grid pavers), memungkinkan air hujan untuk merembes melalui permukaan ke bawah ke lapisan dasar tanah dan kerikil. Disisi lain, sumber daya yang berkualitas akan mendorong perkembangan ekonomi sehingga masyarakat akan lebih sejahtera. Melalui webinar dengan memberikan tambahan pengetahuan siswa SMK untuk meningkatkan kompetensi dalam pembuatan beton tembus. Pelaksanaan pada hari Sabtu, 12 September 2020 melalui Webinar dengan aplikasi “Zoom Cloud Meeting”. Jumlah peserta yang mengikuti kegiatan dari 5 SMK di Jakarta dan Bekasi sebanyak 67 peserta. Hasil evaluasi menggunakan instrumen pertanyaan pre-test dan posr-test untuk 61 responden menyatakan bahwa (1) Mengenalkan kepada siswa atau lulusan SMK tentang regulasi di industri konstruksi terkait dengan kompetensi pembuatan beton tembus untuk lapis perkerasan jalan lokal bagi calon tenaga konstruksi sebagai upaya mengurangi dampak kerusakan lingkungan” meningkat sebesar 30,426% dari 27,869% atau yang mengerti bertambah 21 orang menjadi 38 orang, (2) Peningkatan pengetahuan pembuatan beton tembus untuk lapis perkerasan jalan lokal bagi calon tenaga konstruksi meningkat antara  23% sampai 46% atau terjadi penambahan yang mengetahui 15 - 28 orang.
Analisis Ion Fe3+ dan Konduktivitas pada Air Sumur di Sekitar TPA Pakusari secara Simultan Menggunakan Metode Sequential Injection Analysis Sartikasari, Mindarti; Mulyono, Tri; Muflihah, Yeni Maulidah
BERKALA SAINSTEK Vol 6 No 1 (2018)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v6i1.7762

Abstract

Analisis Fe3+ dan konduktivitas pada air sumur di sekitar TPA Pakusari perlu dilakukan untuk mengetahui kualitas perairan Penelitian ini mengembangkan metode penentuan konsentrasi Fe3+ dan konduktivitas secara simultan dan otomatis dengan menggunakan Sequential Injection Analysis (SIA). Desain SIA dibuat dengan cara menghubungkan syringe pump, selection valve dan kuvet FIA dengan menggunakan pipa kapiler PTFE, sedangkan konduktometer dihubungkan langsung dengan komputer. Salah satu parameter yang memepengaruhi metode ini yaitu volume reagen (KSCN 2M) dan laju alir analit. Hasil penelitian menunjukkan bahwa laju alir optimum pada 100 μL/s dan volume KSCN 2M optimum pada 6 μL. Metode ini diaplikasikan langsung untuk menentukan kualitas perairan di sekitar TPA Pakusari. Pengambilan sampel diambil delapan itik di sekitar TPA Pakusari diperoleh hasil bahwa titik 30 meter sebelah utara penampungan air lindi memiliki konsentrasi Fe3+ melebihi ambang batas yang telah di tetapkan KEPMENKES.RI.No. 907/MENKES/SK/VII/2002 dengan konduktivitas yang lebih tinggi dibandingkan air sumur yang lain.Kata Kunci: Fe3+, simultan, SIA, konduktivitas, air lindi
Padsorpsi Cu2+ Menggunakan Kitosan Beads Termodifikasi Formaldehida Kristi, Maganda Ananda; Indarti, Dwi; Mulyono, Tri
BERKALA SAINSTEK Vol 5 No 2 (2017)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v5i2.5555

Abstract

Penelitian ini bertujuan untuk memodifikasi kitosan beads yang termodifikasi dengan formaldehida untuk meningkatkan ketahanannya. Perbandingan NaCl dengan kitosan adalah sebesar 1:1 (g/g). Variasi formaldehida yang digunakan adalah 23%, 30% dan 37%. Kitosan beads digunakan untuk mengkaji kapasitas adsorpsi dan porositas. Berdasarkan hasil penelitian, waktu optimum adsorpsi pada waktu 120 – 180 menit. Kapasitas adsorpsi ditentukan menggunakan isoterm Langmuir. Penambahan formaldehida pada kitosan beads mengakibatkan kapasitas adsorpsi dan porositas beads menurun. Hasil spektrum IR menunjukkan perubahan puncak pada daerah bilangan gelombang 1548 - 1660 cm -1. Spektrum IR tersebut membuktikan bahwa adanya perubahan gugus amina primer menjadi amina sekunder setelah ditambahkan formaldehida.Kata Kunci: Adsorpsi, Beads, Formaldehida, Ikat Silang, Porositas.
Analisis Sistem Alir Menggunakan Dua Detektor untuk Mendeteksi Besi(II) (Fe2+) dan Nitrat (NO3-) Secara Simultan Nurjanah, Lusi Ike; Mulyono, Tri; Asnawati, A.
BERKALA SAINSTEK Vol 6 No 2 (2018)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v6i2.9198

Abstract

Artikel ini melaporkan tentang analisis besi(II) dan nitrat secara simultan dengan Flow Injection Analysis (FIA). Metode ini menggunakan dua detektor yang dihubungkan dengan satu komputer. Flow Injection Analysis dirangkai dengan menghubungkan Three-Way Solenoid Valve, pompa peristaltik, detektor spektrofotometri dan potensiometri serta komputer. Sinyal FIA spektrofotometri didasarkan pada reaksi pembentukan senyawa komplek antara besi(II) dengan reagen 1.10-fenantrolin. Sinyal FIA potensiometri didasarkan pada keberadaan nitrat yang diperkuat dengan larutan ISA 2M ((NH4)2SO4). Salah satu parameter yang mempengaruhi metode ini yaitu volume reagen. Kinerja sistem injeksi alir didasarkan pada linieritas, limit deteksi, sensitivitas, keterulangan dan uji recovery. Hasil penelitian menunjukkan bahwa volume reagen yang optimum pada penentuan besi(II) dan nitrat yaitu 0,20 mL. Persamaan kurva kalibrasi yang diperoleh dari analisis besi(II) yaitu menunjukkan nilai linieritas sebesar 0.997, sensitivitas sebesar 0.123, limit deteksi sebesar 0.016 ppm dan nilai ketelitian terendah 99.20% serta uji recovery sebesar 98.00%. Persamaan kurva kalibrasi yang diperoleh dari analisis nitrat yaitu menunjukkan nilai linieritas sebesar 0.999, sensitivitas sebesar -96.77 mV per dekade, limit deteksi sebesar 0.36 ppm dan nilai ketelitian terendah sebesar 98.22% serta uji recovery sebesar 96.00%. Kata Kunci: Besi(II), nitrat, penentuan simultan, FIA, spektrofotometri, potentsiometri.
Co-Authors Adhi Purnomo Afsun Aulia Nirmala Agung Tjahjo Nugroho Agus Nuryatin Ahmad Turidi Ahmad, Mutiara Garnet Alex Taufiqurrohman Zain Alfaris, Lukman Almu’minin, Achmad Sholikhudin Andriansyah, Alvin Anggarsika, Prabingesti Anisah Ardian Syah Putra Artoto Arkundato Asnawati Asnawati Asnawati Asnawati Asnawati Asnawati Asnawati, A. Asriyani, Wahyu Aulia, Afsun Azisah, Nur Azizah, Lutfiana Badrut Tamam Ibnu Ali Bambang Piluharto Basukiyatno, Basukiyatno Beni Habibi Burhan, Asmat Busroni, Busroni Bustami Bustami Cahyono, Bowo Eko Chairul Paotonan D. Iwan Setiawan Dariah, Dariah Dewi, Febby Cynthia Dul Hapid, Saca Dwi Indarti Dwi Novitasari Dzulhaq, Muhammad Iqbal Edy Supriyanto Edy Wibowo Fachry Abda El Rahman Fajrin Nurul Hikmah Gembong Kesuma B Hadi, Winoto Halimatussakdiah Halimatussakdiah Henita Rahmayanti Hutamia, Diah Meirendi Ika Oktavianawati Imron Rosyadi Inayah, Dwi Nita Laeli Intan Puspa Wangi, Intan Puspa Islamintari, Wulan Kholidin Kholidin, Kholidin Kholifa, Mulik Kristi, Maganda Ananda Kusworo Adi Leli Triana Maimunah Noer Aini Maufur Maufur Maulana, Bima Wahyu Misto Misto Misto Misto Misto, M. Moh. Hasan Mulatsih, Tri Mursyidah Dwi Hartati, Mursyidah Dwi Musalamah, Sittati Mutiara Garnet R.A Mutmainnah Mutmainnah Nabilah, Veni Zakiatun Neran - Novita Andarini NUR FITRIYAH Nurjanah, Lusi Ike Nursichati, Nursichati Nurul Hanifah Priwantari, Silfira Rizky Purwanto, Burhan Eko Purwanto, Burhan Eko Purwanto Purwo susongko Puspa Wangi, Intan Rahmat Gernowo Ramadhany, Feryna Resthiana, Niken Rizqon Rizqon Rofi’i, Imam Rofi’udin, Rofi’udin Rohmawati, Manis Rokhmawati, Ilma Eka Nur Ropiyah, Ropiyah Rustono - Rustono, Mr S Siswanto Sartikasari, Mindarti Setiawan, Mohamad Bayu Siswanto Siswanto SISWOYO Sri Mulyati Sudarko Suminto A. Sayuti Suriswo Sutisna Sutisna Sutji Muljani Syamsiar, Syamsiar Syamsul Anwar, Syamsul Tanti Haryati Triningsih Triningsih Umairoh, Umi Umarul Faruq Vivian Karim Ladesi Wafi, Moh. Abduh Wawan Badrianto Wawan Badrianto, Wawan winoto hadi Wiwin Setiani Wuryanti Handayani Yeni Maulidah Muflihah Yeni Maulidah Muflihah Yuda Cahyoargo Hariadi Zulfikar