| Synthesis, characterization and activity of photocatalytic sol–gel TiO2 powders and electrodes J Marugan, P Christensen, T Egerton, H Purnama Applied Catalysis B: Environmental 89 (1-2), 273-283, 2009 | 51 | 2009 |
| Does hydrogen peroxide really accelerate TiO2 UV-C photocatalyzed decolouration of azo-dyes such as Reactive Orange 16? TA Egerton, H Purnama Dyes and pigments 101, 280-285, 2014 | 38 | 2014 |
| PENGEMBANGAN PRODUKSI PESTISIDA ALAMI DARI Beauveria bassianaDAN Trichoderma sp. MENUJU PERTANIAN ORGANIK H Purnama, N Hidayati, E Setyowati Warta LPM 18 (1), 1-9, 2015 | 27 | 2015 |
| Effect of initial treatment in the preparation of natural indigo dye from Indigofera tinctoria H Purnama, N Hidayati, DS Safitri, S Rahmawati AIP Conference Proceedings 1855 (1), 2017 | 25 | 2017 |
| Influence of the Synthesis pH on the Properties and Activity of Sol‐Gel TiO2 Photocatalysts J Marugán, P Christensen, T Egerton, H Purnama International Journal of Photoenergy 2008 (1), 759561, 2008 | 20 | 2008 |
| Pemanfaatan tongkol jagung untuk adsorpsi zat warna Reactive Blue 19 H Purnama, AR Kurnianto LPPM STIKES Muhammadiyah Kudus, 2016 | 13 | 2016 |
| Natural dye extraction from tropical almond (Terminalia catappa Linn) leaves and its characterization H Purnama, W Eriani, N Hidayati AIP Conference Proceedings 2114 (1), 2019 | 11 | 2019 |
| Decolouration of dye solutions using photoelectrocatalysis and photocatalysis TA Egerton, H Purnama, S Purwajanti, M Zafar Journal of Advanced Oxidation Technologies 9 (1), 79-85, 2006 | 11 | 2006 |
| Effect of Ultrasound on Zeolite Preparation from Rice Husk Ash H Purnama, M Musthofa, AH Akhwan, IK Dewi, R Fitriadi Astechnova UGM, 2014 | 10 | 2014 |
| Characterization of sPEEK/chitosan membrane for the direct methanol fuel cell N Hidayati, T Harmoko, M Mujiburohman, H Purnama AIP Conference Proceedings 2114 (1), 2019 | 9 | 2019 |
| The influence of platinum (II) on TiO2 photocatalyzed dye decolourization by rutile, P25 and PC500 TA Egerton, H Purnama, JA Mattinson Journal of Photochemistry and Photobiology A: Chemistry 224 (1), 31-37, 2011 | 9 | 2011 |
| Biodiesel from microalgae Nannochloropsis oculata and Tetraselmis chuii by sonication technique and K2CO3 catalyst H Purnama, N Hidayati IOP Conference Series: Materials Science and Engineering 821 (1), 012011, 2020 | 8 | 2020 |
| Pemurnian Minyak Jelantah Dengan Zeolit Alam: Pengaruh Massa Zeolit dan Waktu Pengadukan H Purnama, O Mistyanti, RKN Amin Universitas Muhammadiyah Surakarta, 2014 | 8 | 2014 |
| Adsorpsi Limbah Tekstil Sintetis dengan Jerami Padi H Purnama, S Setiati Gelagar Vol. 15 No. 1 April 2004, 2004 | 8 | 2004 |
| Pengaruh waktu dan jarak elektroda pada pengolahan lindi dengan metode elektrokoagulasi-adsorpsi zeolit T Trisnaawati, H Purnama Jurnal Teknik Kimia 27 (2), 54-60, 2021 | 7 | 2021 |
| Pembuatan Bioetanol dari Limbah Kulit Kopi Arabika dan Robusta dengan Variasi Waktu Fermentasi NNA Said, H Purnama Prosiding University Research Colloquium, 220-228, 2020 | 7 | 2020 |
| Catalysis of glycerol acetylation on solid acid catalyst: a review N Hidayati, RP Sari, H Purnama Jurnal Kimia Sains dan Aplikasi 23 (12), 414-423, 2020 | 7 | 2020 |
| Production of Cellulase Enzyme from Aspergilus niger using Rice Husk and Bagasse as Inducer P Purkan, HD Purnama, S Sumarsih Jurnal Ilmu Dasar 16 (2), 95-102, 2016 | 7 | 2016 |
| Effects of particle dispersion on the measurement of semi-conductor photocatalytic activity TA Egerton, RW Harrison, SE Hill, JA Mattinson, H Purnama Journal of Photochemistry and Photobiology A: Chemistry 216 (2-3), 268-274, 2010 | 6 | 2010 |
| Pengaruh Tegangan dan Waktu pada Pengolahan Lindi Metode Elektrokoagulasi-Adsorpsi Zeolit RA Putri, H Purnama Jurnal Reka Lingkungan 10 (2), 135-144, 2022 | 5 | 2022 |
