传统Mn(III)氧化去除双酚A的技术中存在Mn(II)/Mn(III)循环效率和Mn(III)利用率低，氧化过程易产生含锰污泥等问题。提高Mn(III)氧化去除双酚A的效率，同时降低体系的运营成本是本项目的研究核心。本项目拟设计一系列新型钛基纳米微反应器。光催化过程中，该反应器能为Mn(III)氧化体系中的Mn(II)提供氧化位点以及满足其氧化电势的光生空穴，促进Mn(II)/Mn(III)循环从而提高Mn(III)的利用率；此外该反应器能通过“孔道限域”效应和“静电吸附”作用富集溶液中的Mn(II)，从而抑制含锰污泥的产生。本项目拟通过多种分析测试手段及理论计算方法，系统研究该纳米微反应器光催化强化的Mn(III)氧化去除低浓度高风险有机微污染物（双酚A）的增效机理和关键驱动因子，同时揭示光催化纳米反应器促进Mn(II)/Mn(III)循环的干预机制，为该体系处理实际工业废水奠定基础。

The application of Mn(III) oxidation for bisphenol A removal is vastly restricted by the low conversion rate of Mn(II)/Mn(III) as well as the low utilization efficiency of Mn(III) and consequently the generation of a large amount of manganese sludge. Proper countermeasures are therefore necessary for achieving higher system performance. Herein, a series of novel nanoreactors with spatial separation of co-catalysts will be designed. During the photocatalysis process, the nanoreactors are expected to provide oxidation active site for Mn(II) and to effectively promote the separation of photogenerated charge as well as prolong its lifetime. Mn(II) can be oxidized by the photo-generated holes with high oxidation potential, and consequently the conversion rate of Mn(II)/Mn(III) and the utilization efficiency of Mn(III) will be significantly improved. Furthermore, the soluble Mn(II) will gather in the cavity of the nanoreactors due to the confinement effects and electrostatic force, efficiently reducing the production of manganese sludge. The enhancement effects of the nanoreactors for pollutant removal and the key driving factors will be investigated systematically by using various analytical methods and theoretical calculations. Moreover, the mechanisms of the accelerated Mn(II)/Mn(III) conversion process induced by the nanoreactor will be elucidated. This project is expected to provide useful information for future industrial application of photocatalytic oxidation technology in advanced water treatment.