Mesoporous titanium dioxide (TiO₂) photocatalysts were synthesized via a solvothermal method using sodium dodecyl sulfate (SDS) as templates. The effect of the SDS concentration and solution pH value on the resulting TiO₂ catalyst and its photocatalytic activity were studied. The photocatalytic activity was assessed by degradation methylene blue under low-power (8W × 4) UV light irradiation. The best performance showed that over 95% of methylene blue was degraded in 120 min and in the presence of S20 (20 mmol SDS addition, pH = 4). With the optimal addition of SDS, the crystal size was reduced, and the surface area was increased. In addition, some bidentate-sulfates (–SO₄²⁻) residues were observed within the prepared mesoporous TiO₂. The Detail characterization of of the as-prepared TiO₂ samples were conducted by X-ray diffraction, Ultraviolet–Visible Spectroscopy, Scanning electron microscope, Brunauer-Emmett-Teller analysis, and Fourier-transform infrared spectroscopy, respectively.

以十二烷基硫酸钠（SDS）为模板，通过溶剂热法合成了介孔二氧化钛（TiO ₂）光催化剂。研究了SDS浓度和溶液pH值对所得TiO ₂催化剂的影响及其光催化活性。在低功率（8W×4）紫外线照射下，通过降解亚甲基蓝来评估其光催化活性。最佳性能表明，在S20（添加20 mmol SDS，pH = 4）存在下，在120分钟内降解了95％以上的亚甲基蓝。通过最佳添加SDS，可以减小晶体尺寸，并增加表面积。此外，在制备的介孔TiO ₂中观察到一些双齿硫酸盐（–SO ₄ ²⁻）残留物。分别通过X射线衍射，紫外可见光谱，扫描电子显微镜，Brunauer-Emmett-Teller分析和傅立叶变换红外光谱对所制备的TiO ₂样品进行详细表征。