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A deeper insight into the evaluation of water-in-oil amicroemulsion templated samarium sulfide nanospheres: exploring its role in pickering emulsion formulation for photocatalytic dye degradation and synthesis of PANI@Sm 2 S 3 nanocomposites
Ist Teil von
Nanoscale advances, 2024-03, Vol.6 (6), p.1688
Ort / Verlag
England
Erscheinungsjahr
2024
Link zum Volltext
Quelle
EZB Electronic Journals Library
Beschreibungen/Notizen
This study examines the effectiveness of W/O microemulsion-mediated Sm
S
nanospheres in pickering emulsion-based crystal violet (CV) dye degradation and PANI@Sm
S
nanocomposite synthesis. The evaluation of nanospheres inside the core of reverse micelles was performed through DLS, TEM and FESEM analyses. The formation of nanospheres involve two phases: a nucleation phase (5-30 min) and growth phase (30-120 min). Through
hydrophobization of negatively charged (with a zeta value of -4.47 mV at neutral pH) Sm
S
nanoparticles (0.1 wt%) with a suitable amount of a cationic CTAB surfactant, a stable O/W pickering emulsion was developed. 0.1 wt% Sm
S
hydrophobized with 2.7 mM CTAB offered a stable pickering emulsion with a diameter of 23 μm after 1 day of storage. This pickering emulsion improves the local concentration of CV by efficiently encapsulating dye molecules inside the core of emulsion droplets. Therefore, dye molecules get numerous opportunities to interact with the Sm
S
photocatalyst and efficiently degrade. The pickering emulsion stabilised by 0.1 wt% of Sm
S
nanoparticles
hydrophobized with 2.7 mM of CTAB results in almost 100% degradation. Moreover, using only solid Sm
S
(having wt% of 0.025 or 0.075) as a pickering stabiliser, new PANI@Sm
S
spherical nanocomposites were synthesised
pickering emulsion polymerization. The formation of PANI@Sm
S
composites was identified
UV-vis, IR, and
H-NMR investigations. The analysis of FESEM images showed that the amount of nanoparticles used in the dispersion (for 0.025 wt%, 35 nm and 0.075 wt%, 29 nm) strongly influences the size and shape of the composites.
Sprache
Englisch
Identifikatoren
eISSN: 2516-0230
Titel-ID: cdi_pubmed_primary_38482038
Format
–
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