Mahmoud A. Hussein - King Abdulaziz University
M. M. Alam - Department of Chemical Engineering and Polymer ScienceShahjalal University of Science and Technology Sylhet 3100 Bangladesh
Hasinah K. Albeladi - King Abdulaziz University
Reda M. El-Shishtawy - National Research Centre
Abdullah M. Asiri - King Abdulaziz University
Mohammed M. Rahman - King Abdulaziz University