Affiliation: | (1) Nanomaterials Laboratory, Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;(2) Present address: Multifunctional Nanomaterials for Industrial Application (MULIA) Research Group, Department of Chemistry, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia |