Tailored crystals of anatase TiO₂ have been synthesized using a hydrothermal method with hydrofluoric acid and sodium fluoride as capping agents. Titanium dioxide in the form of sheets, tetragonal truncated bipyramids, cuboids and belts offer different exposed facets: {001}, {001}/{101}, {001}/{100} and {100}, respectively. The strongest oxygen adsorption was observed for crystals with exposed {001} facets. Adsorbed fluorides also improve oxygen adsorption. Our spectroelectrochemical (SE-DRS) measurements of density of electronic states (DOS) revealed that the energy of conduction band edge increases in the order: {101}<{100}<{001}. Fluoride ions significantly influence the electronic states distribution, which in the case of sheets introduce new low energy electronic states. In the case of tetragonal truncated bipyramids the effect is opposite: low energy states present in fluoride-free materials disappear upon F⁻ adsorption. Moreover, grain boundaries formed between crystals introduce new low energy electronic states, which can act as deep electron traps. Photocurrent measurements have shown that the oxidation of methanol occurs most efficiently at TiO₂ sheets offering mainly 001 facets. The photocatalytic oxidation of terephthalic acid (test for HO generation) also depends on the exposed facets and increases in the order: cuboids, sheets, tetragonal truncated bipyramids, belts. Furthermore, fluoride ions drastically decrease the photocatalytic production of TAOH.

锐钛矿型TiO _2的量身定制晶体已经使用水热法以氢氟酸和氟化钠作为封端剂合成了α-己内酰胺。片状，四边形双锥体，长方体和带状的二氧化钛具有不同的裸露面：分别为{001}，{001} / {101}，{001} / {100}和{100}。对于具有暴露的{001}小面的晶体，观察到最强的氧吸附。吸附的氟化物还改善了氧的吸附。我们对电子态密度（DOS）的光谱电化学（SE-DRS）测量表明，导带边的能量按以下顺序增加：{101} <{100} <{001}。氟离子显着影响电子态的分布，在薄板的情况下会引入新的低能电子态。对于四角形截断的双锥体，效果相反：⁻吸附。此外，晶体之间形成的晶界引入了新的低能电子态，可以充当深电子陷阱。光电流测量表明，甲醇氧化最有效地发生在主要提供001个切面的TiO ₂板上。对苯二甲酸的光催化氧化（生成HO的测试方法）还取决于裸露的小平面，并按以下顺序增加：长方体，薄片，四角形截头双锥体，皮带。此外，氟离子极大地降低了TAOH的光催化产生。