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-Feb-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
Appears in Collections:Articles