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All Journal Reaktor Journal of Engineering and Technological Sciences Hikmah Journal of Engineering and Technological Sciences
Khoiruddin Khoiruddin
Department Of Chemical Engineering, Faculty Of Industrial Technology, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132
Religion Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Social Sciences

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Green Energy Technologies: A Key Driver in Carbon Emission Reduction I Gede Wenten; Khoiruddin Khoiruddin; Utjok Welo Risma Siagian
Journal of Engineering and Technological Sciences Vol. 56 No. 2 (2024)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.2.1

Abstract

This paper explores the vital role of green energy technologies in mitigating carbon emissions and advancing sustainable energy transition. It emphasizes the significance of green energy in reducing the carbon footprint, delves into the environmental consequences of carbon emissions, and analyzes the mechanisms through which green energy contributes to carbon reduction. This paper discusses technological advancements across various renewable energy sources, including solar, wind, hydroelectric, biomass, geothermal, tidal, wave, nuclear, osmotic, and salinity-powered energy generation. It also examines emerging green energy technologies, identifies barriers to adoption, offers an Indonesian perspective, and provides recommendations for a greener energy future. Overall, this paper offers a comprehensive exploration of green energy's transformative potential in combatting climate change and promoting sustainable development.
Heterogeneous Polypropylene-Based Cation-Exchange Membrane Modified by Functionalized Zinc Oxide Particles for Vanadium Redox Flow Battery Khoiruddin, Khoiruddin; Firmansyah, Rizky W.; Yulanda, Nanda; Wardani, Anita K.; Wenten, I Gede
Reaktor Volume 24 No.2 August 2024
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.24.2.58-67

Abstract

This work presents the synthesis and characterization of heterogeneous cation-exchange membranes based on polypropylene (PP) and cation-exchange resin (IER) powder, developed via melt spinning. The membranes were modified with zinc oxide (ZnO) nanoparticles functionalized with polydopamine (PDA) to enhance their electrochemical properties. The effects of varying IER content and ZnO/PDA loading on key membrane properties, including ion-exchange capacity (IEC), water uptake (WU), water contact angle (WCA), proton conductivity, water permeability, and vanadium permeability, were systematically investigated. The results demonstrated that increasing IER content improved proton conductivity and IEC, but also increased vanadium permeability. The PP/ZnO-PDA (Z-2.5) membrane, with 2.5%-wt. ZnO/PDA, showed reduced water permeability (0.46 L·m⁻²·h⁻¹·bar⁻¹) and vanadium permeability (5.67 × 10⁻⁵ cm² min⁻¹), while maintaining moderate proton conductivity (13.17 mS/cm). However, increasing ZnO/PDA content beyond 2.5%-wt. led to declines in WU, IEC, and proton conductivity, likely due to nanoparticle aggregation reducing access to ion-exchange sites.
Pengaruh Pembelajaran Al-Miftah lil-Ulum Terhadap Kemampuan Membaca dan Memahami Kitab Fathul Qarib Santri Pondok Pesantren Zahid, Ahmad; Khoiruddin, Khoiruddin; Mahrus, Erwin; Usman, Usman
Hikmah Vol. 21 No. 1 (2024): Januari-Juni 2024
Publisher : Sekolah Tinggi Agama Islam Sumatera Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53802/hikmah.v21i1.395

Abstract

The ability to read turast is urgent for boarding school students, it becomes a tool for studying all learning studies in boarding schools. The purpose of this study was to determine the effect of Al-Miftah Lil-Ulum on the ability to read the yellow book of Fathul Qarib. the research method used is quantitative, while the data collection technique uses a test instrument in the form of multiple choice that has been tested through the Aiken V test with 3 expert lecturers as assessors then and the person correlation validity test and the reliability test. While the analysis test used is Path Analysis. The results of this research are that there is a direct influence of Al-Miftah Lil-Ulum learning variables on the ability to read the book of Fathul Qarib with a significance value of 0.011, there is a direct influence on the ability to read the book of Fathul Qarib on the ability to understand the book of Fathul Qarib with a significance level of 0, 000, there is a direct effect of Al-Miftah Lil-Ulum learning on the ability to understand the book of Fathul Qarib with a significance level of 0.000 and there is an indirect effect between Al-Miftah Lil-Ulum learning on the ability to understand the book of Fathul Qarib mediated by reading ability. This research has implications for evaluation to improve the ability of students to read the book of turast.
Co-Authors Ahmad Nurul Hakim Ahmad Zahid Anita K. Wardani Anita K. Wardani, Anita K. Aysha Mareta Karlina Darmawan, Hanna Enny Ratnaningsih Erwin Mahrus Eryk Bone Pratama Nabu Eryk Bone Pratama Nabu, Eryk Bone Pratama Firmansyah, Rizky W. Hanna Darmawan I Gede Wenten I Gede Wenten I Gede Wenten Kadja, Grandprix Thomryes Marth Kusuma, Dewi Puja Lienda Aliwarga Lienda Aliwarga Mubiar Purwasasmita Mubiar Purwasasmita Mubiar Purwasasmita Nengsi Rova Nicholaus Prasetya Novika Suwardana Nurul F. Himma Petrus Benny Juwono Putu T.P. Aryanti Putu T.P. Aryanti Sari, Livia Trijunita Setyo Widodo Susi Nurkholidah Suwardana, Novika TATI NURHAYATI Usman Usman Utjok Welo Risma Siagian Utjok Welo Risma Siagian Yulanda, Nanda