1. Department of Natural Resources and Sustainability, Faculty of Earth Science; Universiti Malaysia Kelantan, 17600 Jeli; Kelantan Malaysia
2. Department of Chemistry, Faculty of Science; Universiti Teknologi Malaysia; Johor Bahru Johor Malaysia
3. Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research; Universiti Teknologi Malaysia; Johor Bahru Johor Malaysia
4. Department of Environmental Engineering, Faculty of Civil Engineering; Universiti Teknologi Malaysia; Johor Bahru Johor Malaysia