فهرس المقالات Cr(VI) حرية الوصول المقاله صفحة الملخص نص كامل 1 - Investigation of removal efficiency of Cr (VI) from industrial wastewater using chitosan and synthesized chitosan nanoparticles arezou ghadi Soleiman Mahjoub Mohsen ziyari 10.22034/jna.2020.1901714.1216 حرية الوصول المقاله صفحة الملخص نص كامل 2 - The removal of Hexavalent chromium; (Cr (VI)) by ZnO/LECA as a nano photocatalyst using full factorial experimental design Aref Shokri Safoora Karimi 10.22034/jna.2021.1906290.1223 حرية الوصول المقاله صفحة الملخص نص كامل 3 - Preparation of ZnO nanocatalyst supported on todorokite and photocatalytic efficiency in the reduction of chromium (VI) pollutant from aqueous solution Maryam Sabonian Kazem Mahanpoor