Chemistry Department;
College of Science for Girls;
University of Dammam;
Dammam;
Kingdom of Saudi Arabia;
Chemistry Department;
Faculty of Science;
Benha University;
Benha;
Egypt;
Department of Materials Science;
Institute of Graduate Studies and Research;
Alexandria University;
Alexandria;
Egypt;
Silica; Clay-Silica; Sol-Gel; Method; Core-Shell; Nanoparticles;