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Bakti, Andi Ikhtiar
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CHARACTERIZATION OF ACTIVE CARBON FROM COCONUT SHELL USING X-RAY DIFFRACTION (X-RD) AND SEM-EDX TECHNIQUES Bakti, Andi Ikhtiar; Gareso, Paulus Lobo; Rauf, Nurlaela
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 8, No 2 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v8n2.p115-122

Abstract

Activated carbon is produced from the coconut shell through physical and chemical activation. The pyrolysis method was employed in this research for physical activation at an optimum temperature of 600oC and 1,000oC, for chemical activation immersed using 10% Na2CO3 activating agent. This research has produced two samples, namely the physical activation of 1,000oC and the physics-chemical activation of Na2CO3. The X-Ray Diffraction (X-RD) spectrum of activated carbon in the samples 1,000oC and Na2CO3 contained silicate minerals, iron ore and quartz, respectively, and it showed the formation of carbon and graphite structures in the hkl (002) and (100) planes. Through Scherrer?s method, the average size of the Na2CO3 crystals sample is 15.03 nm and the sample crystal sample of 1,000oC is 54.53 nm; the size of the Nano-scale crystals was formed when the temperature increases ? 600° C. The X-RD resulted the percentage of elemental content carbon phase volume fraction (Fv) and impurity (I) in the 1,000oC sample of 75.61%, 24.39% and the Na2CO3 sample of 77.87%, 22.13% . These results indicate that the carbon content in chemical activation is much better than the physics activation. SEM results with magnification of 5,000x, it is very clear the porosity formed of the 10 ?m picture size are 0.8 ?m in Na2CO3 sample and 1.00 ?m in 1,000oC sample.
Characterization of Active Carbon from Coconut Shell using X-Ray Diffraction (X-RD) and SEM-EDX Techniques Bakti, Andi Ikhtiar; Gareso, Paulus Lobo; Rauf, Nurlaela
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 8, No 2 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v8n2.p115-122

Abstract

Activated carbon is produced from the coconut shell through physical and chemical activation. The pyrolysis method was employed in this research for physical activation at an optimum temperature of 600oC and 1,000oC, for chemical activation immersed using 10% Na2CO3 activating agent. This research has produced two samples, namely the physical activation of 1,000oC and the physics-chemical activation of Na2CO3. The X-Ray Diffraction (X-RD) spectrum of activated carbon in the samples 1,000oC and Na2CO3 contained silicate minerals, iron ore and quartz, respectively, and it showed the formation of carbon and graphite structures in the hkl (002) and (100) planes. Through Scherrer’s method, the average size of the Na2CO3 crystals sample is 15.03 nm and the sample crystal sample of 1,000oC is 54.53 nm; the size of the Nano-scale crystals was formed when the temperature increases ≥ 600° C. The X-RD resulted the percentage of elemental content carbon phase volume fraction (Fv) and impurity (I) in the 1,000oC sample of 75.61%, 24.39% and the Na2CO3 sample of 77.87%, 22.13% . These results indicate that the carbon content in chemical activation is much better than the physics activation. SEM results with magnification of 5,000x, it is very clear the porosity formed of the 10 μm picture size are 0.8 μm in Na2CO3 sample and 1.00 μm in 1,000oC sample.
Characterization of Active Carbon from Coconut Shell using X-Ray Diffraction (X-RD) and SEM-EDX Techniques Andi Ikhtiar Bakti; Paulus Lobo Gareso; Nurlaela Rauf
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 8 No. 2 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v8n2.p115-122

Abstract

Activated carbon is produced from the coconut shell through physical and chemical activation. The pyrolysis method was employed in this research for physical activation at an optimum temperature of 600oC and 1,000oC, for chemical activation immersed using 10% Na2CO3 activating agent. This research has produced two samples, namely the physical activation of 1,000oC and the physics-chemical activation of Na2CO3. The X-Ray Diffraction (X-RD) spectrum of activated carbon in the samples 1,000oC and Na2CO3 contained silicate minerals, iron ore and quartz, respectively, and it showed the formation of carbon and graphite structures in the hkl (002) and (100) planes. Through Scherrers method, the average size of the Na2CO3 crystals sample is 15.03 nm and the sample crystal sample of 1,000oC is 54.53 nm; the size of the Nano-scale crystals was formed when the temperature increases ≥ 600° C. The X-RD resulted the percentage of elemental content carbon phase volume fraction (Fv) and impurity (I) in the 1,000oC sample of 75.61%, 24.39% and the Na2CO3 sample of 77.87%, 22.13% . These results indicate that the carbon content in chemical activation is much better than the physics activation. SEM results with magnification of 5,000x, it is very clear the porosity formed of the 10 μm picture size are 0.8 μm in Na2CO3 sample and 1.00 μm in 1,000oC sample.
KARAKTERISASI KARBON AKTIF YANG TERBUAT DARI TEMPURUNG KELAPA DENGAN AKTIVASI Na2CO3 DAN SUHU 1000 oC MENGGUNAKAN TEKNIK XRD DAN SEM-EDX Andi Ikhtiar Bakti; Yuanita Amalia Harianto; Mahendra Kusuma Nugraha
CHEMISTRY PROGRESS Vol. 15 No. 2 (2022)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.15.2.2022.44495

Abstract

Karbon aktif dihasilkan dari tempurung kelapa melalui aktivasi fisika dan kimia. Metode pirolisis digunakan untuk aktivasi fisika pada suhu optimal 600 oC dan 1000 oC, untuk aktivasi kimia direndam menggunakan zat pengaktif Na2CO3 10%. Dihasilkan dua sampel, aktivasi fisika yaitu 1000oC dan aktivasi fisika-kimia yaitu Na2CO3. Spektrum XRD dari karbon aktif pada sampel 1000 oC dan Na2CO3 masing-masing terkandung mineral silikat, bijih besi dan kuarsa, dan menunjukkan adanya pembentukan struktur karbon dan grafit pada bidang hkl (002) dan (100), dengan metode Scherrer ukuran rata-rata kristal sampel Na2CO3 15,0285 nm dan ukuran rata-rata kristal sampel 1000 oC 54,5299 nm, ukuran kristal nano terbentuk jika suhu meningkat ≥600 oC. Hasil SEM dengan perbesaran 3000 kali, ukuran gambar 5 µm terlihat sangat jelas porositas yang terbentuk adalah 0,8 µm pada sampel Na2CO3 dan 1,00 µm pada sampel 1000 oC. Hasil spekturm EDX menunjukkan kandungan unsur karbon (C) pada sampel Na2CO3 terdapat 96,74% sedangkan untuk sampel 1000 oC terdapat 54,16%.
KARAKTERISASI KARBON AKTIF YANG TERBUAT DARI TEMPURUNG KELAPA MENGGUNAKAN TEKNIK PIROLISIS DENGAN AKTIVASI FISIKA DAN KIMIA Andi Ikhtiar Bakti; Megastin Massang Lumembang; Jumriadi
Jurnal MIPA Vol. 12 No. 2 (2023): Artikel
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jm.v12i2.46160

Abstract

Karbon aktif dihasilkan dari tempurung kelapa melalui aktivasi fisika dan kimia. Teknik pirolisis digunakan untuk aktivasi secara fisika dengan suhu aktivasi optimal 600oC dan untuk aktivasi kimia direndam menggunakan zat pengaktif ZnCl2 10% dan Na2Ca3 10%. Karbon aktif (KA) dianalisis menggunakan metode Fourier Transform Infred FTIR dan X-Ray Difraction (X-RD). Hasil FTIR menunjukkan bahwa tempurung kelapa berhasil dikonversi menjadi karbon. Hasil X-RD menunjukkan adanya beberapa fase kristal berjenis grafit disekitar puncak 36o dan 44o, terdapat dua puncak difraksi yang luas dan dapat dikaitkan dengan keberadaan karbon dan grafit. Hasil karakterisasi SEM menunjukkan morfologi SEM dari struktur mikro dengan perbesaran 3000 kali, ukuran gambar 5 µm, nampak ukuran pori yang terbentuk dan terdapat porositas yang menjelaskan bahwa hasil aktivasi karbon berhasil.
Extraction and Characterization of Moringa oleifera Leaves as a Feed Additive Candidate in Super Hybrid Duck Feed Yuanita Amalia Hariyanto; Yuniar Alam; Andi Ikhtiar Bakti; Jumriadi Jumriadi
Jurnal Pendidikan Tambusai Vol. 7 No. 2 (2023): Agustus 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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

Abstract

Daun Moringa oleifera yang biasa disebut sebagai tanaman pagar memiliki banyak manfaat. Salah satunya berperan sebagai bahan tambahan pakan ternak yang bertujuan untuk mengoptimalkan pertumbuhan ternak dan meningkatkan nilai gizinya. Fokus penelitian ini adalah pada analisis zat yang terkandung dalam daun kelor. Pertama, daun kelor memiliki kandungan kalsium tertinggi yaitu 68,4% dan 71,3%. Kedua, kaya akan potasium pada kadar 18,3% dan 21,7%, sehingga cocok untuk mengolah fosfor dan belerang pada ternak. Ketiga, mengandung kandungan molybdenum 7,8%, yang berfungsi sebagai penangkal racun. Keempat, berdasarkan hasil penentuan protein dengan metode Keggel, kandungan protein Moringa oleifera sebesar 23,95% dengan penetapan Sinpro dan 24,09% dengan penetapan Diplo. Kelima, daun kelor dapat meningkatkan kadar protein pada ternak.
Sistem Monitoring Suhu, Kelembaban dan Kadar CO2 di Udara Berbasis Internet of Things Andi Ikhtiar Bakti; Marco Alfiano Laoh; Handy Indra Regain Mosey; Jumriadi; Megastin M. Lumembang; Verna Albert Suoth
Jurnal MIPA Vol. 13 No. 2 (2024): Cover
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jm.v13i2.56234

Abstract

Sistem Internet of things (IoT) menyediakan data secara real-time dengan tingkat akurasi yang tinggi yang dapat memonitoring suhu, kelembaban dan kadar CO2 di udara yang diintegrasikan dengan aplikasi mobile, dan dashboard online. Penelitian ini, dibangun sistem monitoring suhu, kelembaban dan kadar CO2 di udara. Sistem monitoring ini terhubung dengan platform Blynk IoT sehingga data suhu, kelembaban dan kadar CO2 di udara dapat diakses dari mana saja dan kapan saja selama perangkat terhubung ke jaringan internet. Sensor MQ132 digunakan untuk mendeteksi kadar CO2 di udara, sementara sensor DHT22 digunakan untuk membaca suhu dan kelembaban. Mikrokontroler yang digunakan adalah ESP32, yang akan menghubungkan sensor dengan Blynk IoT. Data yang terbaca oleh sensor kemudian ditampilkan pada aplikasi dan website Blynk IoT dalam bentuk gauge dan grafik. Grafik pada aplikasi Blynk IoT dapat menampilkan data historis dalam berbagai rentang waktu, seperti data 15 menit terakhir, 30 menit terakhir, 1 jam terakhir, 1 hari terakhir, 1 minggu terakhir, dan 1 bulan terakhir. The Internet of Things (IoT) system provides real-time data with high accuracy that can monitor temperature, humidity, and CO2 levels in the air, integrated with mobile applications and online dashboards. In research, a monitoring system for temperature, humidity and CO2 levels in the air was built. This monitoring system is connected to the Blynk IoT platform so that data on temperature, humidity and CO2 levels in the air can be accessed from anywhere and at any time as long as the device is connected to the internet network. The MQ132 sensor is used to detect CO2 levels in the air, while the DHT22 sensor is used to read temperature and humidity. The microcontroller used is ESP32, which will connect the sensor with Blynk IoT. The data read by the sensors is then displayed on the Blynk IoT application and website in the form of gauges and graphs. Graphs in the Blynk IoT application can display historical data in various time frames, such as data for the last 15 minutes, last 30 minutes, last 1 hour, last 1 day, last 1 week, and last 1 month.  
Pelatihan Pengembangan Sistem Monitoring Suhu, Kelembapan dan Kadar CO2 di Udara Berbasis Internet of Things: Training on Monitoring System Development of a Temperature, Humidity, and Air CO2 Level Based on the Internet of Things Bakti, Andi Ikhtiar; As'ari, As'ari; Rahman, Asep
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 2 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i2.8762

Abstract

The temperature, humidity, and CO2 level monitoring system based on the Internet of Things provides real-time data with a high level of accuracy, accessible through technological devices such as smartphones, tablets, and notebooks. A commonly used IoT platform for this purpose is Blynk. In vocational high schools, students have been taught theoretically but have not implemented it effectively. Therefore, a community service activity was conducted through training on developing a temperature, humidity, and CO2 level monitoring system based on the Internet of Things for 50 students at SMK Negeri 1 Tomohon. This training is purposeful to provide students with knowledge and skills in using the temperature, humidity, and CO2 level monitoring system based on the Internet of Things. The methods used in this activity included socialization, training, practical sessions, demonstrations, and evaluations. Based on the training results, 90% of the students were able to understand the material well. The students were able to create a temperature, humidity, and CO2 level monitoring system based on the Internet of Things with good results.
Characterization of Active Carbon Prepared from Coconuts Shells using FTIR, XRD and SEM Techniques Bakti, Andi Ikhtiar; Gareso, Paulus Lobo
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 7 No 1 (2018): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v7i1.2459

Abstract

Activated carbon is produced from coconut shells through physical and chemical activation. With pyrolysis method, the optimum activation temperature for physics activation is 600oC, and for chemical, activation is to soak it in activator ZnCl2 10% and Na2Ca3 10%. Activated carbon was analyzed by Fourier Transformation Infrared (FTIR) and X-ray Diffraction (XRD) methods. The FTIR result showed that the coconut shells succeeds in becoming carbon. The XRD results confirm the existence of several phases of crystals like graphite around the peaks of 36o and 44o, there are two wide diffraction peaks and can be interconnected with carbon and graphite content. The SEM result showed that the carbonization of pyrolysis and activation processes created porosity and a large surface area for absorption
Studi Eksperimen Metode Elektrokoagulasi dalam Menurunkan Kesadahan Air dengan Variasi Kombinasi Jenis Elektroda Inert dan Non Inert Jumriadi; Nugraha, Mahendra Kusuma; Bakti, Andi Ikhtiar; Hariyanto, Yuanita Amalia
Jurnal Lentera: Penelitian dan Pengabdian Masyarakat Vol. 3 No. 2 (2022): Jurnal Lentera - Penelitian dan Pengabdian Masyarakat
Publisher : Yayasan Bina Lentera Insan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57207/t5pc2f44

Abstract

Ketersediaan air di alam seringkali tidak memenuhi standar air layak konsumsi karena mengandung zat-zat yang berbahaya bagi tubuh. Kesadahan adalah salah satu sifat kimia yang ada dalam air, namun mengkonsumsi air dengan kesadahan yang tinggi akan berbahaya bagi kesehatan. Ada beragam metode untuk menurunkan kesadahan air, masing-masing dengan kelebihan dan kekurangannya. Metode elektrokoagulasi karena kesederhanaannya, telah banyak mendapatkan perhatian untuk digunakan dalam menghilangkan berbagai ion dan bahan organik. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh dari kombinasi jenis elektroda inert (Pt) dan elektroda non inert (Al, Fe, dan Cu) dalam menurunkan kesadahan air menggunakan metode elektrokoagulasi. Penelitian ini dilakukan dengan menggunakan beker glass 1 L diletakkan di atas magnetic stirrer dengan kecepatan pengadukan 450 rpm selama 30 menit. Tegangan yang diberikan adalah 12 V dengan variasi elektroda menggunakan Pt-Cu, Pt-Fe, dan Pt-Al. Air sumur bor yang berada di asrama mahasiswa Universitas Halu Oleo digunakan dalam penelitian ini dengan kosentrasi awal untuk CaCO3 adalah 312,36 mg/L dan kosentrasi Ca 96,88 mg/L. penurunan kosentrasi kesadahan yang terbaik dengan menggunakan elektroda Pt-Cu yakni 15,63 mg/L untuk Ca dan 89,38 mg/L CaCO3, disusul elektroda Pt-Fe dengan penurunan Ca 21,88 mg/L dan 98,5 untuk CaCO3 kemudian elektroda Pt-Al dengan penurunan 28,13 mg/L Ca dan 107,62 mg/L CaCO3.
Co-Authors As'ari, As'ari Asep Rahman, Asep Gareso, Paulus Lobo Handy Indra Regain Mosey Hariyanto, Yuanita Amalia Herny E.I. Simbala Jumriadi Mahendra Kusuma Nugraha Marco Alfiano Laoh Megastin M. Lumembang Mokalu, Ribka G. Nurlaela Rauf Ribka G. Mokalu Salsabila, Unik Hanifah Tika Putri Agustina Verna A. Suoth Yuniar Alam