Activated carbon–supported titania (ACT) composites were synthesized through a hydrothermal process. Two kinds of titanium precursors (titanium(IV) oxysulfate TiOSO₄ liquid and Degussa P25 solid) were used to develop ACT composites (ACT-TiOS and ACT-P25, respectively). The tested amounts of TiOSO₄ and P25 were 5 wt.%, 10 wt.%, 15 wt.%, and 20 wt.%. The adsorption capacity and photocatalytic activity of as-prepared composites were explored through the removal of phenol, naphthol blue black (NBB), and reactive black 5 (RB5). The conditions for the occurrence of the synergism of adsorption and photocatalysis in the removals of the three organics by ACT composites were investigated based on their individual kinetics of adsorption and photocatalysis. The results showed that the optimal amount of both titanium precursors used (TiOS-20 and P25) was 20 wt.%. The Brunauer-Emmett-Teller (BET) surface area decreased in the following order: 1316 m² g⁻¹ (activated carbon) > 1101 m² g⁻¹ (ACT-P25-20) > 496 m² g⁻¹ (ACT-TiOS-20). The ACT-TiOS-20 exhibited an anatase phase, whereas the ACT-P25-20 featured anatase and rutile phases. The highest removals of phenol, NBB, and RB5 (initially, 50 mg L⁻¹) after 3 h of UV irradiation were 58%, 95%, and 98% with ACT-TiOS-20, respectively, and 77%, 90%, and 85% with ACT-P25-20, respectively. The reusability study of the ACT composites indicated that the removal efficiencies of phenol after three cycles were similar.

活性炭负载的二氧化钛（ACT）复合材料是通过水热过程合成的。两种钛前体（含氧硫酸钛（IV）TiOSO ₄液体和Degussa P25固体）用于开发ACT复合材料（分别为ACT-TiOS和ACT-P25）。TiOSO ₄的测试量P25和P25分别为5重量％，10重量％，15重量％和20重量％。通过去除苯酚，萘酚蓝黑（NBB）和反应性黑5（RB5），探索了所制备复合材料的吸附能力和光催化活性。根据ACT复合材料的吸附动力学和光催化动力学，研究了ACT复合材料去除三种有机物时发生吸附和光催化协同作用的条件。结果表明，两种钛前体（TiOS-20和P25）的最佳用量为20 wt。％。Brunauer-Emmett-Teller（BET）表面积按以下顺序减小：1316 m ² g ^-1（活性炭）> 1101 m ² g ^-1（ACT-P25-20）> 496 m ² g^-1（ACT-TiOS-20）。ACT-TiOS-20具有锐钛矿相，而ACT-P25-20具有锐钛矿和金红石相。紫外线照射3小时后，苯酚，NBB和RB5的最高去除率（最初为50 mg L ^-1）分别为ACT-TiOS-20的58％，95％和98％，以及77％，90％ ，而使用ACT-P25-20则分别占85％。ACT复合材料的可重复使用性研究表明，三个循环后苯酚的去除效率相似。