Figure 7.
(a) FTIR spectrum of the islandlike TiO2@SiO2, APTMS-TiO2@SiO2, and HDTMS-TiO2@SiO2 composite. (b) Representative XPS spectra of the APTMS-TiO2@SiO2 and HDTMS-TiO2@SiO2 composite. (c, d) High-resolution XPS spectra of Ti 2p and N 1s.
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