1. Department of Material Science and Engineering, Mekelle Institute Technology, Mekelle University, P.O. Box: 231, Mekelle, Ethiopia
2. Department of Chemistry, College of Natural and Computational Sciences, Mekelle University, P.O. Box: 231, Mekelle, Ethiopia
3. Department of Land Resources Management and Environmental Protection, College of Dryland Agriculture and Natural Resources, Mekelle University, Mekelle, Ethiopia
4. School of Earth Science, College of Natural and Computational Sciences, Mekelle University, P.O. Box: 231, Mekelle, Ethiopia