Nonmetal-doped TiO₂ powders consisting of one-dimensional nanotube bundles were prepared using electrolytes containing different kinds of anion additives via a one-step rapid breakdown anodization (RBA) process in a short time. The results show that although no nitrogen species are observed when nitrate is used as an additive, it acts as a catalyst to increase current density during the RBA process. However, substitutional P- or S-doped TiO₂ nanotube powders with reduced band gap energy are obtained when electrolytes containing phosphate or sulfate are used. Compared with that of undoped-TiO₂ nanotube powders, S-doped TiO₂ nanotube powders exhibit significantly reduced band gap energy, from 3.36 eV to 2.93 eV as the concentration of sulfate ions increases.

使用含有不同种类阴离子添加剂的电解质，在短时间内通过一步快速击穿阳极氧化（RBA）工艺制备了由一维纳米管束组成的非金属掺杂TiO ₂粉末。结果表明，虽然在硝酸盐用作添加剂时未观察到氮，但在RBA过程中，它起着增加电流密度的催化剂的作用。然而，当使用含有磷酸盐或硫酸盐的电解质时，可获得带隙能量降低的P或S掺杂的TiO ₂纳米管替代粉末。与未掺杂的TiO ₂纳米管粉末相比，S掺杂的TiO ₂ 随着硫酸根离子浓度的增加，纳米管粉末的带隙能量显着降低，从3.36 eV降至2.93 eV。