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We successfully constructed uniform and complete TiO2 shells on SiO2 cores in a short reaction time (2h) and obtained the core–shell particles with high dispersibility. In this modified sol–gel method, the adopting of ethanol–acetone mixed solvent was critical and advantageous for the fast formation of TiO2 shells. When acetone was controlled at an optimum fraction in solvent (acetone:ethanol=1.2:1v/v),...
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