TiO2/ZnO Nanocomposite Material for Efficient Degradation of Methylene Blue

Funding Agencies|King Saud University, Riyadh, Saudi ArabiaKing Saud University [RSP-2020/79]
In this research work, we have produced a composite material consisting titanium dioxide (TiO2) and zinc oxide (ZnO) nanostructures via precipitation method. Scanning electron microscopy (SEM) study has shown the mixture of nanostructures consisting nanorods and nano flower. Energy dispersive spectroscopy (EDS) study has confirmed the presence of Ti, Zn and O as main elements in the composite. X-ray diffraction (XID) study has revealed that the successful presence of TiO2 and ZnO in the composite. The composite material exhibits small optical energy band gap which led to reduction of the charge recombination rate of electron-hole pairs. The band gap for the composite TiO2/ZnO samples namely 1, 2, 3 and 4 is 3.18, 3.00, 2.97 and 2.83 eV respectively. Small optical bandgap gives less relaxation time for the recombination of electron and hole pairs, thus favorable photodegradation is found. The degradation efficiency for the TiO2/ZnO samples for methylene blue in order of 55.03%, 75.7%, 85.14% and 90.08% is found for the samples 1, 2, 3 and 4 respectively. The proposed study of titanium dioxide addition into ZnO is facile and inexpensive for the development of efficient photocatalysts. This can be capitalized at large scale for the energy and environmental applications.

Shah, Aqeel AhmedUniv Engn & Technol Karachi, Pakistan (författare)
Almaani, Khalida FaryalUniv Sindh Jamshoro, Pakistan (författare)
Tahira, AneelaLinköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten(Swepub:liu)aneta18 (författare)
Chandio, Ali DadUniv Engn & Technol Karachi, Pakistan (författare)
Willander, MagnusLinköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten(Swepub:liu)magwi72 (författare)
Nur, OmerLinköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten(Swepub:liu)omeno75 (författare)
Mugheri, Abdul QayoomUniv Sindh Jamshoro, Pakistan (författare)
Bhatti, Adeel LiaquatUniv Sindh Jamshoro, Pakistan (författare)
Waryani, BaradiUniv Sindh Jamshoro, Pakistan (författare)
Nafady, AymanKing Saud Univ, Saudi Arabia (författare)
Ibupoto, Zafar HussainUniv Sindh Jamshoro, Pakistan (författare)
Univ Sindh Jamshoro, PakistanUniv Engn & Technol Karachi, Pakistan (creator_code:org_t)

Ingår i:Journal of Nanoscience and Nanotechnology: AMER SCIENTIFIC PUBLISHERS21:4, s. 2511-25191533-48801533-4899

Av författaren/redakt...: Bhatti, Muhammad ...; Shah, Aqeel Ahme ...; Almaani, Khalida ...; Tahira, Aneela; Chandio, Ali Dad; Willander, Magnu ...; visa fler...; Nur, Omer; Mugheri, Abdul Q ...; Bhatti, Adeel Li ...; Waryani, Baradi; Nafady, Ayman; Ibupoto, Zafar H ...; visa färre...

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