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AuthorTahir, Noor
AuthorZahid, Muhammad
AuthorJillani, Asim
AuthorTahir, Suman
AuthorYaseen, Muhammad
AuthorAbbas, Qamar
AuthorAbdul Shakoor, Rana
AuthorHussain, Syed Zajif
AuthorShahid, Imran
Available date2023-05-16T09:07:35Z
Publication Date2023
Publication NameJournal of Environmental Management
ResourceScopus
ISSN3014797
URIhttp://dx.doi.org/10.1016/j.jenvman.2023.117706
URIhttp://hdl.handle.net/10576/42813
AbstractThe present study was done to investigate and compare the photocatalytic and antibacterial activity of two in situ Manganese doped ternary nanocomposites. The dual ternary hybrid systems comprised Mn-doped Ag2WO4 coupled with MoS2-GO and Mn-doped MoS2 coupled with Ag2WO4-GO. Both hierarchical alternate Mn-doped ternary heterojunctions formed efficient plasmonic catalysts for wastewater treatment. The novel nanocomposites were well-characterized using XRD, FTIR, SEM-EDS, HR-TEM, XPS, UV-VIS DRS, and PL techniques confirming the successful insertion of Mn+2 ions in respective host substrates. The bandgap of the ternary nanocomposites evaluated by the tauc plot showed them visible light-active nanocomposites. The photocatalytic ability of both Mn-doped coupled nanocomposites was investigated against the dye methylene blue. Both ternary nanocomposites showed excellent sunlight harvesting ability for dye degradation in 60 min. The maximum catalytic efficiency of both photocatalysts was obtained at a solution pH value of 8, photocatalyst dose and oxidant dose of 30 mg/100 mL and 1 mM for Mn-Ag2WO4/MoS2-GO, 50 mg/100 mL, 3 mM for Mn-MoS2/Ag2WO4-GO keeping IDC of 10 ppm for all photocatalysts. The nanocomposites showed excellent photocatalytic stability after five successive cycles. The response surface methodology was used as a statistical tool for the evaluation of the photocatalytic response of several interacting parameters for dye degradation by ternary composites. The antibacterial activity was determined by the inactivation of gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria by support-based doped ternary hybrids. 2023 Elsevier Ltd
SponsorThis research was funded by the Higher Education Commission (HEC), Pakistan, under Indigenous 5000 Ph.D. Fellowship with student PIN "pin # 518-121977-2PS5-032 (50043428)".
Languageen
PublisherAcademic Press
SubjectAntibacterial activity
Coupling
Graphene oxide
MoS2
Silver tungstate
Ternary heterojunction photocatalysis
Transition metal doping
TitleImpact of alternate Mn doping in ternary nanocomposites on their structural, optical and antimicrobial properties: Comparative analysis of photocatalytic degradation and antibacterial activity
TypeArticle
Volume Number337
dc.accessType Abstract Only


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