試題詳解

複選題
38. Which descriptions below are not correct?
(A) In typical, TiO₂ is a n-type semiconductor.
(B) Anatase TiO₂ has a direct bandgap and thus is able to emit fluorescence.
(C) There is partial positive charge over the O-deficient sites.
(D) TiO₂ can not be dissolved in aqueous acids.
(E) Sol-gel process is one of the methods for synthesizing TiO₂.