Items where Author is "Ritonga, Ahmad Hafizullah"

Sisca, Vivi and Syukri, Syukri and Zilfa, Zilfa and Jamarun, Novesar and Tanjung, Denny Akbar and Ritonga, Ahmad Hafizullah and Annas, Dicky and Khoiriah, Khoiriah and Hariani, Poedji Loekitowati (2025) Catalytic Innovation for Renewable Energy: TiO2-Supported Precipitated Calcium Carbonate Catalyst for Eco-Friendly Biodiesel Synthesis. Baghdad Science Journal, 22 (3). pp. 830-840. ISSN 2078-8665

Ritonga, Ahmad Hafizullah and Sisca, Vivi and Aritonang, Barita and Meilani, Debi and Putri, Gusliani Eka and Siahaan, Enzo W.B (2025) Integrated PLA/LLDPE nanocomposites with compatibilizer and hydroxyapatite-zinc oxide: Mechanical, physical, thermal, and morphological properties. South African Journal of Chemical Engineering, 52. pp. 1-7. ISSN 1026-9185, 2589-0344

Kartika, Rudi and Ritonga, Ahmad Hafizullah and Sulastri, Lilik and Nurliana, Siti and Irawan, Deddy and Simanjuntak, Partomuan (2023) Biosorption of Hexavalent Chromium Cr(VI) using Microalgae Scenedesmus sp as Environmental Bioindicator. International Journal of Technology, 14 (4). p. 791. ISSN 2086-9614

Ritonga, Ahmad Hafizullah and Jamarun, Novesar and Arief, Syukri and Aziz, Hermansyah and Tanjung, Denny Akbar and Isfa, Boy and Sisca, Vivi and Faisal, Hendri (2022) Organic modification of precipitated calcium carbonate nanoparticles as filler in LLDPE/CNR blends with the presence of coupling agents: impact strength, thermal, and morphology. Journal of Materials Research and Technology, 17. pp. 2326-2332. ISSN 22387854