Affiliation: | 1. Department of Chemical Sciences, University of Johannesburg, Doornfontein, 2028, South Africa;2. Department of Chemistry, University of Bath, Bath BA2 7AY, United Kingdom;3. Department of Chemistry, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University, Bogor, West Java, Indonesia;4. Centre for Nanomaterials Science Research, University of Johannesburg, South Africa |