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Process. 6 1/2 (1998), pp. 55–84. ［ 11］ . Ishibashi et al., 1998. K. Ishibashi, Y. Nosaka, K. Hashimoto and A. Fujishima, Timedependent behavior of active oxygen species formed on photoirradiated TiO2 films in air. J. Phys. Chem. B 102 12 (1998), pp. 2117–2120. ［ 12］ . Ishibashi et al., 2020. K. Ishibashi, A. Fujishima, T. Watanabe and K. Hashimoto, Generation and deactivation processes of superoxide formed on TiO2 film illuminated by very weak UV light in air or。 quite a number of photogenerated electrons would rebine with photogenerated holes, causing a decrease in availability of photogenerated holes. The rapid unfavorable charge carrier rebination reaction in TiO2 has bee a drawback for TiO2 photocatalysis in wastewater treatment. On the other hand, although √OH could be generated from O2√?, the process is not a direct one, resulting in low quantum yields of √OH from photogenerated electrons. All these factors reduce the utilization ratio of electron/hole pairs and the photocatalytic efficiency of TiO2 under UV illumination. With threeelectrode potentiostatic unit introduced, H2O2 was generated through cathodic reaction (Eq. (4), [Oturan et al., 2020]) and the consumed O2 was pensated partly by anodic reaction (Eq. (5), [Oturan et al., 2020]). Fig. 2 shows the gradually growing concentration of H2O2 in different bination patterns among electrochemical unit (EC), UV and TiO2. The steady concentration of H2O2 in EC, EC/UV, EC/TiO2 and EC/TiO2/UV system is , , and mmol/l, respectively. But no H2O2 was detected in TiO2/UV system, for the low yields of H2O2 from photocatalysis, in which H2O2 is produced at a grade of nmol/l ([Kim et al., 2020]). Comparison of the steady concentration of H2O2 in different patterns illustrated that the deposition of H2O2, which is mainly produced from 17 electrolysis, was greatly enhanced by the photoexcited TiO2 particles for the reaction between H2O2 and the photogenerated holes (Eq. (6), [Bandala et al., 2020]). And the whole catalytic cycle taking place was shown in Fig. 3. O2+2H++2e?→H 2O2 (4) (5) H2O2+H++ecb?→ √OH+H2O (6) H2O2 traps the photogenerated electrons faster and easier for its higher oxidation potential (Eo= V) than O2 (Eo= V), which can promote the quantum yields of √OH based on two reasons. (1) More electrons are trapped by H2O2, reserving more holes to react with adsorbed water surface hydroxyl group, producing √OH. (2) The reaction between H2O2 and photogenerated electrons can produce √OH directly. Fig. 2. H2O2 accumulation in the reactor, (a) EC。 [Serpone and Pelizzetti, 1989]). However, not only the photo efficiency or activity but also the photo response of TiO2 is not suitable for direct application in environmental optimization ([Kawai and Sakata, 1980]). One of the main factors responsible for these disadvantages is the high rebination of photogenerated electron/hole pairs ( [Li and Li, 2020]). In order to enhance the photocatalytic process, much meaningful work has been carried out. Electro assisted photocatalytic process ( [Hidaka et al., 1999 and Hidaka et al., 1995]), which applied a positive voltage on the TiO2 layer electrode, and modifications on TiO2 by means of noble metal deposition ([Hiramoto et al., 1990]。 Available online 17 December 2020. Abstract Photocatalytic degradation of organic wastes with nanosized titanium dioxide particles has been studied for a long time in order to offer an appropriate method for wastewater treatment, but its practical application is greatly limited by the slow process. In this work, an electrochemically assisted TiO2 photocatalytic system was setup by bining a TiO2 photocatalytic cell with a threeelectrode potentiostatic unit. The posite system revealed high photocatalytic activity towards organic wastes mineralization. After continuous treatment for h, the maximum absorption of rhodamine 6G (R6G) was reduced by more than 90%。s reagent: application to the mineralization of an organic micropollutant, pentachlorophenol. J. Electroanal. Chem. 507 (2020), pp. 96–102. SummaryPlus ［ 19］ . Paola et al., 2020. . Paola, E. Garc237。（ 2）、 H2O2與電子之間的反應消耗光電化學產(chǎn)生的電子，同時產(chǎn)生 OH－ 。這比率顯示出廢水的生物降解能力，高比率表示廢水不利于生物降解能力。偏移的部分是由染色的破壞而產(chǎn)生的。 (c) EC/TiO2。但在 TiO/紫外燈條件下沒有 H2O2生成 ([Kim et al., 2020])。在光電子激發(fā)下，電子從原子帶轉移到 TiO2電子帶，從而引發(fā)電子空穴 /洞 (Eq. (1))。在規(guī)定的時間間隔內進行取樣，將樣品 在 11,000 轉 /分的速度下進行離心分離后分析。溫度調節(jié)裝置有一 根圓柱形耐熱玻璃管，管內裝有 100ML 含有 %（重量比） TiO2 的廢水懸浮物。幸好，光化學有三個作用能促進這種方法。但是，不僅是 TiO2 的光解效益，而且的光解 性不能在最優(yōu)化的情況下有效的運用 ([Kawai and Sakata, 1980])。對于紡織廢水中的 COD 和 BOD5的分別減少 ％和 ％。連續(xù)處理半小時后，對玫瑰精的最大吸收值達 90％以上。 [Serpone and Pelizzetti, 1989])。過去，我們嘗試在適合條件下把 H2O2介入 TiO2 的光催化單位當中，用以促進光催化進行。 儀器設備 所有的的實驗都是在根據(jù)需要設計出來的設備而進行的，這個設備由溫度調節(jié)裝置、三極電池裝置和紫外燈組成（ 見 下圖）。然后，在碳棒上加 V 的電壓，同時打開紫外燈對懸浮液光照半小時。 [Howe, 1998]).通常認為，反應是在紫外光 (λ385 nm)下 TiO2激發(fā)能帶隙而開始。在不同的電子、電子 /紫外燈、電子 / TiO電子 / TiO/