Adsorption behavior and photocdegradation mechanism on endocrine disrupters in the TiO_2 photocataritic degradation

农药、除草剂、增塑剂、合成洗涤剂原料等内分泌干扰物对动物生态系统造成了严重的危害。这些材料中的大多数不溶于水，并且它们是疏水的或树脂可溶的。本研究主要研究了这些有毒物质在TiO_2光催化体系中的降解机理和光降解速率对化学结构的影响。紫外光照射下时间吸附证据的直接测量是如此复杂，以至于动态吸附行为尚未被揭示。TiO_2表面的吸附反应是影响光催化剂初始降解的关键因素。将TiO_2固定在石英晶体微天平（QCM）表面，考察压电效应，并将其作为传感器测量TiO_2表面反应。在紫外光照射下，TiO_2薄膜表面吸附的基质被迁移到体相溶液中， ...更多信息 光降解的可能性。此外，中间产物在TiO_2薄膜表面发生重吸附。因此，高活性TiO_2薄膜的制备是本研究的一个重要关键。通过实验数据与计算机计算（点电荷和前线电子密度）的比较，确定了OH自由基对双酚A化学结构的攻击位置。此外，还计算了分解底物在催化剂表面吸附行为的部分电荷。负电荷意味着与真空或空气中的理论计算和水中的计算有很大差异。此外，正电荷获得较小的值。将实际实验值与这些理论计算值进行比较，并从分子化学结构推断出拆分机理。并对TiO_2光催化体系降解含氟物质和三聚氰酸的实验因素进行了详细考察。少

The endocrine disrupters such as agricultural chemicals, herbicides, plasticizers, and raw material of synthetic detergent have caused the serious problems for the ecosystem of animals. Most of these materials do not dissolve in water, and they are hydrophobic or resin-soluble. In this research, the degradation mechanism and photodegradation rate on the chemical structure of these toxic materials was investigated in TiO_2 photocatalytic system. The direct measure of temporal adsorption evidence under UV irradiation is so complicated that the dynamic adsorption behaviours have not been revealed. The adsorption reaction on the TiO_2 surface is a critical factor for the initial photocatalyst degradation. TiO_2 was fixed on the surface of the quartz crystal microbalance (QCM) to examine piezo the effect, and it was used as a sensor that measured the TiO_2 surface reaction. The adsorbed substrate on the TiO_2 thin film surface by the UV irradiation is moved to the bulk solution by the progr … More esses of photodegradation. Moreover, the intermediates are reabsorbed on the TiO_2 thin file surface. Therefore, the make of the high active TiO_2 thin film is an important key in this research.The attack position of OH radicals to the chemical structure of bisphenol A was the compared between the experimental data and the computer calculation (point charge and frontier electron density). Moreover, partial charge of the ad sorption behavior of the resolved substrate was calculated to the surface of the catalyst. A minus charge implies a big difference from the theoretical calculation in the vacuum or air and the calculation in water. Moreover, the plus charge obtains a smaller value. An actual experiment value was compared with these theoretical calculations, and the resolution mechanism was inferred from a molecular chemical structure. The experiment factors of a non-degradative material as flourine-containing material and cyanuric acid by the TiO_2 photocatalytic system were also inspected in detail. Less