標題: | Diatom-assisted biomicroreactor targeting the complete removal of perfluorinated compounds |
作者: | Albert, Karunya Hsieh, Pei-Ying Chen, Tsai-Hsuan Hou, Chia-Hung Hsu, Hsin-Yun 交大名義發表 應用化學系 應用化學系分子科學碩博班 National Chiao Tung University Department of Applied Chemistry Institute of Molecular science |
關鍵字: | Bioremediation;Living diatom;PFCs;Decomposition;Heterogeneous Fenton reaction;Reactive oxygen species |
公開日期: | 15-二月-2020 |
摘要: | Persistent perfluorinated compounds (PFCs) have been recognized as a global environmental issue. Developing methods without leading to additional burden in nature will be essential for PFCs removal. Herein, we functionalized iron nanoparticles on living diatom (Dt) to efficiently enable the Fenton reaction and reactive oxygen species (ROS) production. Iron nanoparticles at the surface of living diatom act as promising catalytic agents to trigger (OH)-H-center dot radical generation from H2O2. Dt plays dual roles: i) as solid support for effective adsorption, and ii) it supplies oxygen and inherently produces ROS under stress conditions, which improves removal efficiency of PFCs. We also demonstrated its reusability by simple magnetic separation and 85% of decomposition efficiency could still be achieved. This newly developed diatom-assisted bioremediation strategy enables green and efficient PFC decomposition and shall be readily applicable to other persistent pollutants. |
URI: | http://dx.doi.org/10.1016/j.jhazmat.2019.121491 http://hdl.handle.net/11536/153751 |
ISSN: | 0304-3894 |
DOI: | 10.1016/j.jhazmat.2019.121491 |
期刊: | JOURNAL OF HAZARDOUS MATERIALS |
Volume: | 384 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |