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All Journal Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Jurnal Difusi
Eko Andrijanto
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Humanities Chemical Engineering, Chemistry & Bioengineering Education Energy Engineering Environmental Science Social Sciences

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Lithium Recovery Using Hydrogen Manganese Oxide Adsorbent Derived from Spinel Lithium Manganese Oxide : Pemulihan Litium Menggunakan Adsorben Hidrogen Mangan Oksida Berasal dari Spinel Litium Mangan Oksida Widyabuningsih, Dewi; Hielwana, Hanadia; Pauti, Ekbar; Ridwan, Iwan; Rispiandi, Rispiandi; Eko Andrijanto
Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Vol. 7 No. 1 (2023)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rbaet.2023.007.01.05

Abstract

Lithium recovery from brine is recently attracting significant attention due to increasing industrial demand for energy storage, such as batteries. The lithium recovery from lithium brine was investigated using hydrogen manganese oxide adsorbent. The hydrogen manganese oxide adsorbent HMn2O4 (HMO) is derived from the spinel lithium manganese oxide  (LMO), which is synthesized from  LiOH and MnO2 precursor through the reflux method. The synthesized adsorbent was characterized using Scanning Electron Microscopy to identify its physical characteristics and its surface morphology. The adsorption capacity toward lithium solution was performed through an ion exchange process, and the adsorption values were determined using Atomic Absorption Spectroscopy (AAS). The synthesized HMO has a high lithium adsorption capacity for lithium-ion, which is 23 mg/g, and 10 mg/g for desorption. The optimum uptake capacity of HMn2O4 is 44% of the initial values (52 ppm) after 120 minutes of contact time. The synthesized hydrogen manganese oxide adsorbent has a potential industrial lithium recovery for large-scale application.
Empowering Science Laboratories through the Design of Laboratory Support Tools at SMPS Islam Ideal School Joko Suryadi; Bevi Lidya; Eko Andrijanto; Budi Santoso; Gustin Mustika Krista; Kardian Rinaldi; Keryanti; Lina Troskialina; Mentik Hulupi; Retno Dwi Jayanti; Riniati; Yohana Fransiska Ferawati; Amalia Zia Salma
Jurnal Difusi Vol. 9 No. 2 (2026): Jurnal Difusi
Publisher : Pusat Penelitian dan Pengabdian Masyarakat (P3M) Politeknik Negeri Bandung

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Abstract

Science learning at the junior high school level requires experimental learning experiences so that physics, chemistry, and biology concepts can be understood contextually. However, limitations and suboptimal utilization of laboratory equipment can constrain practical activities. This community service activity aimed to empower the science laboratory of SMPS Islam Ideal School through the development of simple, applicable, and needs-oriented practical supporting equipment. The activity methods included laboratory observation and inventory, kit design and assembly, preparation of practical guides, and training and demonstrations for teachers and students. Three kits were developed: a Bio-Battery kit, a water filtration kit, and a carbohydrate analysis kit. The results showed that the kits could be used as supporting media for science learning and practical activities. The partner school responded positively and showed enthusiasm toward utilizing the developed equipment. The activity contributed to improving laboratory utilization as an active, contextual, and applicable science learning facility.
Co-Authors Amalia Zia Salma Bevi Lidya Budi Santoso Ferawati, Yohana Fransiska Hielwana, Hanadia Iwan Ridwan Jayanti, Retno Dwi Kardian Rinaldi Keryanti, Keryanti Krista, Gustin Mustika Lina Troskialina Mentik Hulupi Pauti, Ekbar Riniati Rispiandi Rispiandi Suryadi, Joko Widyabuningsih, Dewi