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All Journal Journal Zetroem Journal of Applied Community Engagement (JACE) Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Herman
Politeknik Negeri Ketapang
Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Study on TiO2 Extraction from Ilmenite Sand in Ketapang Regency Through Various NaOH Molar Ratios Sy. Indra Septiansyah; Herman; Rahmat Nur Hidayatulloh; Alesya Rahmadita
EKSPLORIUM Vol. 47 No. 1 (2026): MAY 2026
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/eksplorium.2026.13619

Abstract

Titanium Dioxide (TiO2) is a high-value inorganic material widely used in various industrial sectors, including paints and coatings, cosmetics, and ceramics, as well as in photocatalytic energy and environmental applications. One of the main sources of TiO2 is the mineral ilmenite (FeTiO3), which is abundant in iron sand deposits in Ketapang Regency, West Kalimantan. However, its use has thus far been limited to raw mining activities without downstream processing, resulting in relatively low economic value added. This study aims to extract TiO2 from Ketapang ilmenite sand through the alkali fusion method using NaOH with molar ratios of 1:1, 1:2, 1:3, and 1:4. The fusion product (frit) was subsequently washed with distilled water, leached with 37% HCl solution, and precipitated using NH4OH to obtain Ti precipitates, which were then characterized using X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), and Scanning Electron Microscopy coupled with Energy Dispersive X-ray (SEM-EDX). Initial characterization revealed that ilmenite sand contained 43.78% TiO2, 27.84% Fe2O3, and 15.34% ZrO2 along with minor amounts of other associated minerals. XRD analysis of the extracted product confirmed the presence of diffraction peaks matching the standard TiO2 pattern, with relative intensity reaching 100% at molar ratios of 1:1 to 1:4. The dominant crystalline phase identified was anatase. Morphological observations by SEM revealed TiO2 particles with nano–submicron crystal structures and rough surfaces characteristic of anatase, while EDX analysis confirmed titanium as the dominant surface element, with an atomic composition up to 90.21%.
Pemanfaatan Sekam Padi Menjadi Briket Ramah Lingkungan untuk Mendukung Energi Berkelanjutan di Desa Tanjung Baik Budi Kabupaten Ketapang: Empowering Local Farmers through Waste-to-Energy Innovation Desyana Ghafarunnisa; Syarifah Aqla; Firman; Sartika; Sy Indra Septiansyah; Maya Santi; Herman; Idris Herkan Afandi; Syarifah Mastura
Journal of Applied Community Engagement Vol. 5 No. 2 (2025): Journal of Applied Community Engagement (JACE)
Publisher : ISAS (Indonesian Society of Applied Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jace.v5i2.1329

Abstract

Tanjung Baik Budi Village has great potential in rice production, yet faces challenges with unmanaged rice husk waste, which is often burned openly, causing pollution and resource inefficiency. This community service program aims to train and assist local residents in transforming rice husk into eco-friendly briquettes as an alternative, sustainable energy source. The method includes socialization, technical training, production assistance, and evaluation. The briquette-making process involves carbonization, charcoal grinding, mixing with natural adhesives, molding, drying, and packaging. The results show increased community skills in producing briquettes and enthusiasm for developing alternative energy-based enterprises. Rice husk briquettes are proven to be environmentally friendly, affordable, easy to make, and economically promising. This activity supports higher education performance indicators and the implementation of the Merdeka Belajar Kampus Merdeka (MBKM) program. In conclusion, the community is capable of independently managing agricultural waste into valuable products. Continued mentoring and product marketing development are recommended to ensure long-term sustainability.
Prototyping IoT-Based Safety Telemetry System for Forest Firefighters Eka Wahyudi; Novi Indah Pradasari; Ar-Razy Muhammad; Darmanto; Dedy Hidayat Kusuma; Indra Pratiwi; Herman
ZETROEM Vol 8 No 2 (2026): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v8i2.7533

Abstract

Forest fires significantly impact the environment, carbon emissions, and public health. Ensuring the safety of forest firefighters remains a critical challenge, as they operate in high-risk environments with limited communication infrastructure. This study develops an Internet of Things (IoT)-based safety telemetry system utilizing LoRa communication to monitor firefighters’ physiological and environmental conditions in real time. The system is built on an ESP32 microcontroller integrated with sensors for body temperature, heart rate, ambient temperature and humidity, CO and CO₂ concentrations, as well as a GPS module for location tracking. Sensor data are transmitted via a LoRa SX1278 module to a Raspberry Pi–based gateway and subsequently forwarded to a cloud server for visualization and monitoring. System performance was evaluated in forested and residential environments over distances of up to 1 km. The results demonstrated an average data transmission success rate of 97% with a latency of 1.47 seconds, indicating reliable LoRa communication in areas with limited cellular network coverage. Furthermore, the sensors achieved measurement errors below 3%, while the system operated continuously for 12.5 hours with a power consumption of only 0.68 W, demonstrating high accuracy, reliability, and energy efficiency. The system also provides an early warning mechanism for hazardous conditions encountered by firefighters. User evaluations revealed an 89% satisfaction rate, particularly regarding the effectiveness of the early warning feature and overall system usability. These findings demonstrate that the proposed LoRa-based IoT telemetry system can effectively enhance firefighter safety through accurate, reliable, and energy-efficient real-time monitoring.
Co-Authors Alesya Rahmadita Ar-Razy Muhammad Darmanto, Darmanto Desyana Ghafarunnisa Eka Wahyudi Firman idris herkan afandi Indra Pratiwi Kusuma, Dedy Hidayat Maya Santi Novi Indah Pradasari Rahmat Nur Hidayatulloh Sartika Sy Indra Septiansyah Sy. Indra Septiansyah Syarifah Aqla Syarifah Mastura