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All Journal Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Surya Teknika
Nabila, Roida
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pembuatan Arang Aktif dari Pelepah Sawit Menggunakan Aktivator H2SO4 sebagai Adsorben untuk Pemurnian Air Sungai Siak Fithry, Dwi Annisa; Nabila, Roida; Ermal, Dini Aulia Sari; Rahmi, Viona Aulia; Jusnita, Jusnita; Parmanoan, Durain
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.53455

Abstract

Oil palm fronds are an agricultural waste with potential application as a raw material for activated carbon due to their lignocellulosic content, which includes cellulose, hemicellulose, and lignin, enabling their function as an adsorbent. In this study, oil palm fronds were carbonized by pyrolysis at a temperature of 350°C, size-reduced to 100 mesh, and subsequently activated using a 0.1 M H₂SO₄ solution for 3 hours, then drying by oven at 70°C. 100 mL of the Siak River sample was added with 3 grams of activated carbon for the adsorption process, then shaken every 20 minutes for 3 hours. Turbidity analysis was conducted using a turbidimeter. The results indicated that the lowest turbidity values were obtained in the morning, namely 16.8 NTU at the upper section and 21.7 NTU at the lower section. This is attributed to the minimal level of community activities around the Siak River during the morning period. 
Studi Literatur: Perkembangan Material Elektrokatalis Sebagai Elektroda Untuk Produksi Hidrogen Melalui Water Splitting Nabila, Roida; Aulia Rahmi , Viona; Aulia Sari Ermal, Dini
SURYA TEKNIKA Vol 13 No 1 (2026): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v13i1.11810

Abstract

Hydrogen production by water splitting is one of the most effective technologies for supporting the transition to clean energy, as it can produce green hydrogen with low carbon emissions. The performance of this process is influenced by the characteristics of the electrocatalytic materials used as electrodes. Therefore, the development of materials with high electrocatalytic activity, good stability, and optimal charge transfer efficiency remains a key focus of research. A literature review methodology involving the analysis  and investigate of various scientific publications on the development of semiconductor- and metal oxide-based electrocatalysts, including BiVO₄, TiO₂, CuO/ZnO, and NiFe₂O₄, for hydrogen production via water splitting. A variety of research indicate that each material exhibits distinct mechanisms for performance enhancement, such as visible light absorption capability, chemical stability, the formation of p/n-type heterojunctions, and redox mechanisms within spinel structures. In morphological engineering strategies, the formation of heterostructures, optimization of electronic structures, and interface engineering can increase current density, reduce overpotential, and accelerate charge transfer in the Hydrogen Evolution Reaction (HER) and Oxygen Evolution Reaction (OER). The integration of various material engineering strategies represents a promising approach in the development of efficient, stable, and sustainable electrocatalysts to support future green hydrogen production.
Co-Authors Dini Aulia Sari Ermal Fithry, Dwi Annisa Jusnita Jusnita, Jusnita Parmanoan, Durain Viona Aulia Rahmi