Beilstein J. Nanotechnol.2020,11, 1834–1846, doi:10.3762/bjnano.11.165
nanostructures are attractive candidates for photocatalysis owing to their tunable physicochemical properties, their interfacial contact effects, and their efficacy in charge-carrier separation. This study reports, for the first time, on the synthesis of mesoporous silica@nickelphyllosilicate/titania (mSiO2
@NiPS/TiO2) core–shell nanostructures. The TEM results showed that the mSiO2@NiPS composite has a core–shell nanostructure with a unique flake-like shell morphology. XPS analysis revealed the successful formation of 1:1 nickelphyllosilicate on the SiO2 surface. The addition of TiO2 to the mSiO2@NiPS
yielded the mSiO2@NiPS/TiO2 composite. The bandgap energy of mSiO2@NiPS and of mSiO2@NiPS/TiO2 were estimated to be 2.05 and 2.68 eV, respectively, indicating the role of titania in tuning the optoelectronic properties of the SiO2@nickelphyllosilicate. As a proof of concept, the core–shell nanostructures
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Figure 1:
TEM images of (a, d) mesoporous SiO2, (b, e) mSiO2@NiPS, and (c, f) mSiO2@NiPS/TiO2.