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All Journal Journal of Engineering and Technological Sciences PESARE: Science and Engineering Service Journal
Yuliana Sy
Department of Chemical Engineering, Syiah Kuala University
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Public Health

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Synthesis of Nanocrystalline of Lanthanum Doped NaTaO3 and Photocatalytic Activity for Hydrogen Production Husin, Husni; Pontas, Komala; Sy, Yuliana; Syawaliah, S.; Saisa, S.
Journal of Engineering and Technological Sciences Vol 46, No 3 (2014)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (603.06 KB) | DOI: 10.5614/j.eng.technol.sci.2014.46.3.6

Abstract

Sodium tantalum oxide doping lanthanum (La-NaTaO3) compounds were successfully synthesized by a sol-gel method and calcined at different temperatures. Tantalum chloride (TaCl5) was used as starting material and lanthanum nitrate (La(NO3)3.6H2O) as lanthanum source. X-ray diffraction (XRD) revealed that the calcination temperature strongly influenced the crystallinity of the prepared samples.The crystallite sizes of the resultant La-NaTaO3were in the range of 27-46 nm. The photocatalytic activities of the samples were examined for hydrogen production from an aqueous methanol solution under UV light irradiation. It was found that the photocatalytic activity of the La-NaTaO3 depended strongly on the calcination temperature. The range of calcination temperatures were 500, 700, and 900°C. The La-NaTaO3 sample calcined at 900°C showed the highest photocatalytic activity compared to the samplescalcined at the other temperatures. The rate of hydrogen production reached a value of 6.16 mmol h-1 g-1 catalyst.
Inovasi Pengelolaan Limbah Organik Rumah Tangga: Pembuatan Ekoenzim (EE) di Desa Luthu Lamweu, Kecamatan Sukamakmur, Kabupaten Aceh Besar Kamaruzzaman, Suraiya; Hisbullah, Hisbullah; Ambarita, Aulia Chintia; Sy, Yuliana; Mukhriza, Teuku; Nasution, Fahrizal
PESARE: Jurnal Pengabdian Sains dan Rekayasa Vol 2, No 3 (2024): Oktober 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/pesare.v2i3.41769

Abstract

Transforming household organic waste (such as leftover food, fruits, vegetables, and other organic materials) into eco-enzymes represents a pioneering community service initiative in Luthu Lamweu Village, Sukamakmur District, Aceh Besar, Aceh Province, Indonesia. This project aims to enhance environmental awareness and improve community welfare. The villagers of Luthu Lamweu possess significant potential in converting organic waste into valuable products. The research methodology employed a participatory approach, actively engaging the community in all stages, including awareness campaigns (socialization), training sessions, technical support for eco-enzyme production, and evaluation. The strategy involved collaboration with village authorities, facilitated through the Program Bakti Mahasiswa Teknik (PBMT) and lecturer-led community service (PkM) to ensure program sustainability. The community service outcomes indicated a substantial increase in the communitys knowledge, interest, and skills in managing household organic waste into eco-enzymes, with a success rate of 96.25% (rated from sufficient to very good). Furthermore, the program positively impacted the villages environmental quality by converting organic waste into valuable eco-enzymes.
Co-Authors Ambarita, Aulia Chintia Hisbullah Hisbullah Husni Husin Kamaruzzaman, Suraiya Komala Pontas Nasution, Fahrizal S. Saisa S. Syawaliah Teuku Mukhriza