TiO₂ is a very famous semiconductor widely applied for photocatalysis and nanotechnology. It has several different Erystal structures which exhibit certain extent of different properties. Please answer the following group of questions 37-39 about TiO₂.
【題組】39. About the photocatalyst of TiO₂, which are correct statements?
(A) TiO₂ photocatalysts are at nanoscale.
(B) TiO₂ photocatalysts exhibit radicals after light excitation to achieve sterilization.
(C) TiO₂ can be used as the material for water proof.
(D) TiO₂ is one of the important materials in the applications of solar cells.
(E) TiO₂ is very toxic and hence it is not allowed to be used in the food additives.

研究所、轉學考(插大)◆無機化學- 113 年 - 113 台灣聯合大學系統_碩士班招生考試試題_化學類：無機化學#122281

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