| The isolation of nanofibre cellulose from oil palm empty fruit bunch via steam explosion and hydrolysis with HCl 10% S Gea, Z Zulfahmi, D Yunus, A Andriayani, YA Hutapea Journal of Physics: Conference Series 979 (1), 012063, 2018 | 25 | 2018 |
| Photocatalytic degradation of methylene blue using N-Doped ZnO/Carbon Dot (N-ZnO/CD) nanocomposites derived from organic soybean DG Ayu, S Gea, Andriayani, DJ Telaumbanua, AFR Piliang, M Harahap, ... ACS omega 8 (17), 14965-14984, 2023 | 20 | 2023 |
| Synthesis of carbon nanodots from cellulose nanocrystals oil palm empty fruit by pyrolysis method Marpongahtun, S Gea, Y Muis, Andriayani, T Novita, AF Piliang Journal of Physics: Conference Series 1120, 012071, 2018 | 16 | 2018 |
| Extraction silica from rice husk with NaOH leaching agent with temperature variation burning rice husk. A Daulay, S Gea Rasayan Journal of chemistry 14 (3), 2021 | 15 | 2021 |
| The stabilization of liquid smoke through hydrodeoxygenation over nickel catalyst loaded on sarulla natural zeolite S Gea, A Haryono, A Andriayani, JL Sihombing, AN Pulungan, T Nasution, ... Applied Sciences 10 (12), 4126, 2020 | 15 | 2020 |
| Optimization of silicon extraction from Tanjung Tiram Asahan natural sand through magnesiothermic reduction A Andriayani, SL Raja, H Sihotang, N Sofyan Optimization 6 (7), 2015 | 10 | 2015 |
| Synthesis of Mesoporous Silica from Tetraethylorthosilicate by Using Sodium Ricinoleic as a Template and 3-Aminopropyltrimethoxysilane as Co-Structure Directing Agent with … A Andriayani, SB Sembiring, N Aksara, N Sofyan Advanced Materials Research 789, 124-131, 2013 | 10 | 2013 |
| Chemical reduction of silica into silicon from extracted quartz sand using sodium hydroxide and hydrochloric acid solutions A Andriayani, Y Muis, DY Nasution AIP Conference Proceedings 2342 (1), 2021 | 9 | 2021 |
| Effect of variation temperature at burning rice husk to obtain silica A Daulay, A Andriayani, M Marpongahtun, S Gea AIP Conference Proceedings 2342 (1), 2021 | 9 | 2021 |
| Bentonit Terpilar TiO2 Sebagai Katalis Pembuatan Hidrogen dalam Pelarut Air pada Hidrogenasi Glukosa Menjadi Sorbitol dengan Katalis Nikel R Marhusari Universitas Sumatera Utara, 2009 | 9 | 2009 |
| GC-MS Analysis of chemical contents and physical properties of essential oil of Eucalyptus grandis from PT. Toba Pulp Lestari Z Alfian, H Marpaung, M Taufik, S Lenny, A Andriayani, SJ Samosir Asian Journal of Chemistry, 2019 | 8 | 2019 |
| The effect of chemical activation using base solution with various concentrations towards sarulla natural zeolite AN Pulungan Journal of Islamic Science and Technology 6 (1), 85-95, 2020 | 7 | 2020 |
| Synthesis of mesoporous silica with ricinoleic methyl ester (Ricinus communis) as a template for adsorption copper (II) with optimizing Box-Behnken design A Daulay Case Studies in Chemical and Environmental Engineering 7, 100287, 2023 | 6 | 2023 |
| Synthesis of Nitrogen-Doped Carbon Dots from Nanocrystalline Cellulose by Pyrolysis Method as Hg2+ Detector M Marpongahtun, A Andriayani, Y Muis, S Gea Synthesis 14 (1), 2023 | 6 | 2023 |
| OPTIMIZATION OF SILICON EXTRACTION FROM TANJUNG TIRAM ASAHAN NATURAL SAND THROUGH MAGNESIOTHERMIC REDUCTION. SL Raja, H Sihotang, N Sofyan International Journal of Technology 6 (7), 2015 | 4 | 2015 |
| The effect concentration of tetraethylorthosilicate and variation HCl 0.1 M for synthesis mesoporous silica using oleic acid as template and 3-aminopropyltrimethoxysilane as co … A Andriayani, H Nainggolan, M Taufik, S Simamora, N Sofyan SEMIRATA-International Conference on Science and Technology, 2018 | 3 | 2018 |
| Mechanical and morphological characteristic investigations of deinked used newsprint paper via ultra-sonochemistry method S Gea, S Rahayu, A Andriayani, AFR Piliang, N Oktari Jurnal Natural 20 (2), 49-55, 2020 | 2 | 2020 |
| Comparative Optimization of Cellulase and Laccase Enzymes in Deinking Process of Used Newspapers S Gea, N Oktari, A Andriayani, S Rahayu, AF Piliang Jurnal Kimia Sains dan Aplikasi, 2020 | 2 | 2020 |
| The effect concentration of tetraethylorthosilicate and variation HCl 0.1 M for synthesis mesoporous silica using oleic acid as template and 3-aminopropyltrimethoxysilane as co … H Nainggolan, M Taufik, S Simamora, N Sofyan Journal of Physics: Conference Series 1116 (4), 042006, 2018 | 2 | 2018 |
| Increased of Purity Silicon from Natural Sand with Variation of Heating Time through Magnesiotermal A Andriayani, N Sofyan, H Sihotang, SL Raja Proceedings of International Conference on Natural and Environmental Science …, 2014 | 2 | 2014 |
