Improved catalytic activity and bactericidal behavior of novel chitosan/V2O5 co-doped in tin-oxide quantum dots. Issue 36 (16th August 2022)

• Record Type: Journal Article
• Authors: Ikram, Muhammad; Shahzadi, Iram; Haider, Ali; Hayat, Shaukat; Haider, Junaid; Ul-Hamid, Anwar; Shahzadi, Anum; Nabgan, Walid; Dilpazir, Sobia; Ali, Salamat
• Is Part Of: RSC advances. Volume 12:Issue 36(2022)
• Page Start: 23129
• Page End: 23142
• Publication Date: 2022-08-16
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d2ra03975c
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Figure showing bactericidal mechanism exhibited by the prepared pristine and co-doped SnO2 . Abstract : The novel V2 O5 /chitosan (CS) co-doped tin oxide (SnO2 ) quantum dots (QDs) were synthesized via co-precipitation technique. The optical, structural, morphological, and catalytic properties of the concerned specimens were examined by UV-Vis, PL, FTIR, X-ray diffraction, HR-TEM, and EDS. Structural analysis through XRD confirmed the tetragonal structure of SnO2 ; meanwhile, HR-TEM measurements unveiled quantum dot morphology. Rotational and vibrational modes related to functional groups of (O–H, C–H, Sn–O, and Sn–O–Sn) have been assessed with FTIR spectra. Through UV-Vis spectroscopy, a reduction in band-gap (4.39 eV to 3.98 eV) and redshift in co-doped spectra of SnO2 were identified. Both CS/SnO2 and V2 O5 -doped CS@SnO2 showed promising catalytic activity in all media. Meanwhile, CS/SnO2 showed higher activity for use in hospital and industrial dye degradation in comparison to dopant-free Ch/SnO2 . For V2 O5 /CS@ SnO2 QDs, inhibition domains of G –ve were significantly confirmed as 1.40–4.15 mm and 1.85–5.45 mm; meanwhile, for G +ve were noticed as 2.05–4.15 mm and 2.40–5.35 mm at least and maximum concentrations, correspondingly. These findings demonstrate the efficient role of V2 O5 /CS@SnO2 QDs towards industrial dye degradation and antimicrobial activity.