Browsing by Author "Govha, J."

Now showing items 1-3 of 3

    • From sand to silicon: unlocking the semiconductor industry potential for Zimbabwe's silica sand 

      Million, E.; Govha, J.; Musiwa, P. B. (БНТУ, 2025)
      High-purity silicon is the bedrock of the modern digital economy, essential for every semiconductor and solar photovoltaic technology. This increase in global demand generates opportunities for nations with untapped resources. This research study investigates the quantity and quality of Zimbabwe's silica sand. Through Inductively Coupled Plasma characterization, the study established ...
      2026-01-14

    • Sustainable recovery of high-purity amorphous silica from local sand deposits in Zimbabwe using citric acid leaching pre-treatment 

      Mutsata, K.; Govha, J.; Musiiwa, P. B.; Moyo, L. (БНТУ, 2025)
      This study presents an alternate process for utilization of Zimbabwean silica sand to produce high-purity amorphous silica. The objective was to develop an optimum multi-stage purification that is environmentally friendly. The methodology starts with pre-treatment step with hydrochloric acid, followed by citric acid chelation stage to remove metallic oxide impurities. The pre-treated ...
      2026-01-14

    • The next frontier: transforming zimbabwe’s silica sand into smart technology 

      Mbanje, N.; Govha, J.; Musiwa, P. B. (БНТУ, 2025)
      High-purity silicon is the cornerstone of modern electronics and solar technologies. This study investigates the potential of Zimbabwe’s silica sand as a source of raw material for semiconductor-grade silicon. Samples from Mkoba, Gweru were analysed using Inductively Coupled Plasma (ICP) to determine elemental composition and impurity levels. Results show high silica content of ...
      2026-01-14