فهرس المقالات Rice husk silica حرية الوصول المقاله صفحة الملخص نص كامل 1 - Synthesis of Pyranopyrazole Compounds Using Heterogeneous Base Catalyst Based on 1,3,5-Triazine-2,4,6-Triamine Modified Nano Rice Husk Silica Jamal Davarpanah Reza Khoram 10.22034/jna.2017.01.003 حرية الوصول المقاله صفحة الملخص نص كامل 2 - Investigation efficiency of nano photocatalytic compound of TiO2 and rice husk silica in removal of reactive red 198 dye from synthetic aqueous solutions Abdollrahman Mahmoodi Seyed Mahmood Mehdinia Ayat Rahmani Hamidreza Nassehinia