Alaounia , Nadjette, Moussa Ouchefoun, and Tahar Touam. 2025. “Sol–gel Synthesis of Nanocrystalline TiO2 and the Investigation of Its Photocatalytic Activity for Degradation of Methyl Orange”. Journal of New Technology and Materials 11 (01):19-23. http://review.univ-oeb.dz/ojs.jntm/index.php/jntm/article/view/53.