Photocatalytic Reduction of Pb2+, Cd2+ and Cr6+ in Aqueous Solution Using Titanium Dioxide/uv System
Student: ESITIME EFFIONG OKON (Project, 2025)
Department of Chemistry
Akwa Ibom State University, Ikot-Akpaden, Akwa Ibom State
Abstract
The photocatalytic reduction of Cd2+, Pb2 +and Cr6+ ions in aqueous solution was investigated in this study. The photocatalytic utilized was nano-titanium dioxide, composed of 80% anatase and 20% rutile, the UV light source was 15W UV bulb with wavelength of 25nm. The result obtained indicate a reduction efficiency order as follows Cd2+ > Pb2+> Cr6+. It was observed that this result correlate with the respective reduction potentials of the metals ions. The effect of pH on photocatalytic reduction of metal was also carried out, where higher percentage removal of Cd2+ and Pb2+ ions from their aqueous solution was recorded at alkaline pH than at acidic pH. The higher removal Cd2+and Pb2+ ions was attributed to an extensive formation of precipitate at alkaline pH. Therefore, the result of this study will be useful in metal ion removal from industrial waste water using photocatalytic process.
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Institutions
- HASSAN USMAN KATSINA POLYTECHNIC (NCE), KATSINA, KATSINA STATE 4
- Hassan Usman Katsina Polytechnic, Katsina, Katsina State 5
- Heritage Polytechnic, Ikot Udota, Akwa Ibom State 46
- Hussaini Adamu Federal Polytechnic, Kazaure, Jigawa State 8
- Ibrahim Badamasi Babangida University, Lapai, Niger State 24
- Igbinedion University, Okada, Benin City, Edo State 2
- Ignatius Ajuru University of Education, Port Harcourt, Rivers State 8
- Imo State Polytechnic, Umuagwo, Owerri, Imo State 3
- Imo State University, Owerri, Imo State 45
- Institute of Management and Technology, Enugu, Enugu State 11