太陽光を利用した水中細菌の新規光触媒処理システムの開発

开发利用阳光对水下细菌进行新型光催化处理系统

• 批准号: 18J20620
• 负责人: LIU NA
• 金额: $ 1.41万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2018
• 资助国家: 日本
• 起止时间: 2018-04-25 至 2021-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18J20620/
• 关键词: Photocatalyst; Glue immobilization; Water disinfection; Various bacteria; Disinfection mechanism; High stability; Visible-light-driven; Solar-light-driven; Gram-positive; Gram-negative

During the third fiscal year of my research, in order to test the practical application potential of the newly developed glue-immobilized P/Ag/Ag2O/Ag3PO4/TiO2 (PAgT) photocatalyst system for continuous-cycle sterilization, the study was carried out through the following three key points. (1) Evaluate the photocatalytic inactivation ability of the glue-immobilized PAgT photocatalyst for different kinds of pathogenic bacteria. (2) Investigate the stability and recyclability of the developed glue-immobilized photocatalyst reactor for the continuous-cycle water sterilization. (3) Clarify the disinfection mechanism involved during the immobilized PAgT photocatalyst system for the efficient water sterilization.The result showed that the newly developed glue-immobilized PAgT photocatalyst system could effectively inactivate various pathogenic bacteria under light irradiation with excellent stability and reusability. The enhanced antibacterial performance of immobilized PAgT system was due to a synergistic effect of disinfection mechanism combining the improved photocatalysis on the introduction of heterojunction structure, and the mechanical stress driven from the composite sharp edge morphology. The present results reveal the possibility of applying the developed silicone glue-immobilized PAgT system for real water sterilization under solar light to further improve the public health level around the world, especially in the rural areas or at the time of disaster.

在我研究的第三财政年度中，为了测试新开发的胶水胶体化的P/AG/AG2O/AG2O/AG3PO4/TIO2（PAGT）光催化剂系统进行连续周期消毒的研究，该研究是在以下三个关键点中进行的。 （1）评估不同类型的致病细菌的胶合胶化PAGT光催化剂的光催化失活能力。 （2）研究开发的胶合胶化光催化剂反应器的稳定性和可回收性用于连续循环水灭菌。 （3）阐明固定的PAGT光催化剂系统中所涉及的消毒机制进行有效的水灭菌。结果表明，新开发的新开发的胶水毫米固定的PAGT光催化剂系统可以有效地灭活各种在光辐射下具有出色的稳定性和可重复使用的光辐射。固定PAGT系统的抗菌性能增强是由于消毒机制的协同作用，结合了改进的光催化对异性结构结构的引入以及由复合尖锐边缘驱动的机械应力。目前的结果揭示了在太阳能下应用开发的硅胶胶合物的PAGT系统进行真实水灭菌的可能性，以进一步改善世界各地的公共卫生水平，尤其是在农村地区或灾难时期。

项目成果

Superior disinfection effect of Escherichia coli by hydrothermal synthesized TiO2-based composite photocatalyst under LED irradiation: Influence of environmental factors and disinfection mechanism

• DOI: 10.1016/j.envpol.2019.01.082
• 发表时间: 2019-04-01
• 期刊: ENVIRONMENTAL POLLUTION
• 影响因子: 8.9
• 作者: Liu, Na;Zhu, Qi;Yang, Yingnan
• 通讯作者: Yang, Yingnan

Effective Elimination of Seawater Pollutants Using Surfactant Modified Using TiO2-based Composite Under Solar Light Illumination

太阳光照射下TiO2基复合材料改性表面活性剂有效消除海水污染物

• 发表时间: 2020
• 作者: Sharma;A.;Liu;N.;Ma;Q. S.;Yano;M.;Yang;Y. N.
• 通讯作者: Y. N.

Effective Wastewater Treatment with the Developed Liner Fresnel Photocatalytic reactor (LFP) Under Real Solar Light

使用开发的线性菲涅尔光催化反应器（LFP）在真实太阳光下有效处理废水

• 发表时间: 2019
• 作者: Zhang;C.;Liu;N.;Yagi;A.;Yang;Y. N.
• 通讯作者: Y. N.

Photon number based anaerobic digestion process for efficient bio-methane conversion from ammonium-rich feedstock: Performance evaluation and practical potential

• DOI: 10.1016/j.enconman.2021.114155
• 发表时间: 2021-06
• 期刊: Energy Conversion and Management
• 影响因子: 10.4
• 作者: Yunxin Zhu;Nan Zhang;Zhiyuan Liu;Na Liu;Aditya Sharma;Guoping Chen;Yingnan Yang

Development of an Adjustable Solar Light Tracking Reactor for Superior Photocatalytic Wastewater Treatment

开发可调节太阳能光跟踪反应器以实现卓越的光催化废水处理

• 发表时间: 2020
• 作者: Zhang;C.;Liu;N.;Ma;Q.;Ming;J.;Yang;Y. N.
• 通讯作者: Y. N.