Single crystal TiO₂ nanosheet (TNS) arrays with coexposed {101} and {001} facets were synthesized on FTO conductive glass directly, thorn-like Fe₂O₃ were deposited on the {101} surface of TNS by a chemical bath deposition method. Taking advantage of different energy band positions of {101} and {001} facets, the higher band offset value between Fe₂O₃ and {101} facets was achieved, which would accelerate the photoexcited electrons and holes separation between Fe₂O₃ and {101} facets of TNS and enhance photoelectrochemical properties. Furthermore, without modification by low energy chemicals, such novel Fe₂O₃/TNS heterostructure electrodes exhibited stability hydrophobicity. After UV irradiation for 240 min, the contact angle of the Fe₂O₃/TNS (80min) films retained hydrophobicity (134.8°), which is approximately 7.1 times higher than that of bare TNS films. The optimal composite photoelectrode exhibited the highest transient photocurrent intensity (48 μA), which is about 4.4 times superior over the bare TNS. The superior photoelectrochemical properties and stability hydrophobicity were attributed to the suitable band edge positions and hydrophobic thorn-like α-Fe₂O₃.

在FTO导电玻璃上直接合成了具有共暴露{101}和{001}面的单晶TiO ₂纳米片（TNS）阵列，通过化学浴沉积法在TNS的{101}表面上沉积了刺状Fe ₂ O ₃ . 服用的{101}和{001}面的不同能带的位置的优点，在较高频带的Fe之间的偏移值₂ ö ₃和{101}面达到了，这将加速铁之间的光激发电子和空穴分离₂ ö ₃和{101} TNS 的方面并增强光电化学性能。此外，无需低能化学品改性，这种新型 Fe ₂ O ₃/TNS异质结构电极表现出稳定的疏水性。紫外线照射 240 分钟后，Fe ₂ O ₃ /TNS（80分钟）薄膜的接触角保持疏水性（134.8°），约为裸 TNS 薄膜的 7.1 倍。最佳复合光电极表现出最高的瞬态光电流强度（48 μA），比裸 TNS 高约 4.4 倍。优异的光电化学性能和稳定性疏水性归因于合适的带边缘位置和疏水刺状α-Fe ₂ O ₃。