Fabrication, characterization, photocatalytic and biological performances of Mn/ZnO–SiO2 and ZnO–SiO2/PVA based ternary nanocomposites
Author:
Yaseen Muhammad1, Khan Abbas12ORCID, Bououdina Mohamed2, Shah Syed Qasim3, Alanazi Amal Faleh2, Khattak Zafar A. K.4, Hussain Wajid5, Bibi Shaista1, Ahmad Sajjad6, Hameed Abdul7, Humayun Muhammad2ORCID
Affiliation:
1. Department of Chemistry , Abdul Wali Khan University Mardan , Mardan 23200 , Pakistan 2. Energy, Water and Environment Lab, College of Humanities and Sciences , Prince Sultan University , Riyadh 11586 , Saudia Arabia 3. District Medical Specialist & In-charge Medical Department Tehsil Headquarter Hospital Takht Bhai , Mardan 23200 , Pakistan 4. Institute of Chemistry, Baghdad-ul-Jadeed Campus , The Islamia University of Bahawalpur , 63100 Bahawalpur , Punjab , Pakistan 5. Department of Biochemistry , Abdul Wali Khan University Mardan , Mardan 23200 , Pakistan 6. Department of Zoology , Abdul Wali Khan University Mardan , Mardan 23200 , Pakistan 7. Institute of Bacha Khan Medical College Mardan , Khyber Medical University Peshawar, KPK , Mardan 23200 , Pakistan
Abstract
Abstract
Different strategies can be employed to enhance and adjust the overall characteristics and potential applications of the nanomaterials. Herein, ZnO–SiO2, Mn/ZnO–SiO2 and ZnO–SiO2/PVA based nanocomposites were synthesized by sol-gel and in-situ polymerization methods by taking the Zn(CH3COO)·2H2O as ZnO, TEOS as the SiO2 and Mn(SO4)2·7H2O as the Mn precursors. The present study investigates various aspects of ZnO–SiO2, Mn/ZnO–SiO2, and ZnO–SiO2/PVA nanomaterials, including electronic transition, surface morphology, elemental composition, chemical structure elucidation, thermal stability, and phase changes. To accomplish this, several techniques were employed. All the results confirmed the formation of the synthesized composite materials. Moreover, the catalytic and photocatalytic activities of the synthesized composites were studied through the degradation of Methylene blue (MB) dye, etc. The results confirmed that the synthesized nanocomposites exhibited good catalytic and photocatalytic activities towards removal of methylene blue (MB) dye removal. Further, the catalytic/photocatalytic activity of ZnO–SiO2, Mn/ZnO–SiO2 and ZnO–SiO2/PVA nanocomposites were also compared towards the removal of methylene blue (MB) dye and it was verified that the Mn/ZnO–SiO2 nanocomposite show high photocatalytic activity among the three nanocomposites i.e., ZnO–SiO2, Mn/ZnO–SiO2 and ZnO–SiO2/PVA with removal efficiencies of 81 %, 77 % and 77 %, after 6 h, 5 h and 9 h respectively, under UV light illumination. Moreover, the photodegradation mechanism was also studied and finally, the biological activities like antioxidant and antileishmanial were also studied and compared.
Publisher
Walter de Gruyter GmbH
Subject
Physical and Theoretical Chemistry
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