In this study, the synthesis of the {001} facet of anatase TiO₂ (T-{001}) was hydrothermally carried out by a two-step process (without using fluoride ions as capping agent); the synthesized T-{001} sample was characterized by XRD, FESEM and HRTEM. The T-{001} was used for improvement in biodegradability of paper mill wastewater in the batch and continuous system under UV light irradiation. The performance of T-{001} was compared to commercial TiO₂ (P25). In the batch system, the effect of the pH, time and photocatalyst dosage on the COD removal were investigated. The results showed that alkaline condition enhanced photocatalytic degradation of COD. For batch system, biodegradability index (BOD₅/COD ratio) improved from 0.12 to 0.71 by application of the T-{001}; whereas this improvement was 0.52 for P25 sample. For the continuous system, the TiO₂ samples were immobilized on the glass media and utilized in a packed bed photoreactor (PBPR). The effect of different flowrates on the COD removal was investigated. To investigate the stability of the samples, the photocatalytic experiments were continuously carried out for 3 h; both samples showed considerable stability during this time. The final values of BOD₅/COD ratio at flowrate of the 5.4 ml/min were 0.64 and 0.42 for CT-{001} and CP25, respectively.

在这项研究中，锐钛矿型TiO ₂（T- {001}）的{001}晶面的合成是通过两步工艺水热进行的（不使用氟离子作为封端剂）。用XRD，FESEM和HRTEM对合成的T- {001}样品进行表征。T- {001}用于提高间歇式和连续式系统在紫外线照射下造纸厂废水的生物降解性。将T- {001}的性能与商用TiO ₂（P25）进行了比较。在间歇系统中，研究了pH，时间和光催化剂用量对COD去除的影响。结果表明，碱性条件促进了COD的光催化降解。对于批处理系统，生物降解指数（BOD ₅/ COD比）通过使用T- {001}从0.12提高到0.71；而P25样本的改进为0.52。对于连续系统，将TiO ₂样品固定在玻璃介质上，并用于填充床光反应器（PBPR）中。研究了不同流速对COD去除的影响。为了研究样品的稳定性，连续进行了3 h的光催化实验。在这段时间内，两个样品均显示出相当大的稳定性。对于CT- {001}和CP25，在5.4 ml / min的流速下，BOD ₅ / COD比的最终值分别为0.64和0.42。