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Enhanced photocatalysis degradation of organophosphorus flame retardant using MIL-101(Fe)/persulfate: Effect of irradiation wavelength and actual water matrixes
Summary:
The authors from Jinan University developed a MIL-101(Fe) material with a bandgap at 2.41 eV, achieving high-efficiency photocatalytic degradation of TCEP in the field of water treatment.
Background:
1. Traditional water treatment technologies can only partially remove trace organic chemicals (TOrC), leading to environmental pollution. Advanced oxidation processes (AOPs) have been developed, but challenges remain in terms of stability and usability for real water bodies.
2. The authors proposed a MIL-101(Fe)/photo/persulfate system, achieving high degradation efficiency and robust performance in actual water matrixes.
Research Content:
1. Synthesis:
The authors synthesized MIL-101(Fe) using a hydrothermal method.
2. Characterizations:
1) BET results showed a high surface area and pore size distribution suitable for photocatalysis.
2) SEM/TEM tests revealed the material's particle size and morphology.
3) UV–vis DRS and FTIR tests confirmed the material's optical properties and composition.
3. Application:
The material was tested in the degradation of TCEP, achieving significant removal rates under specific conditions.
4. Mechanism:
The analysis of the experiment results suggested that the degradation involved an induction period and a radical oxidation stage. The performance was influenced by factors such as pH, temperature, and reactant ratio.
Outlook:
This research provides a new and efficient method for the degradation of organic pollutants in water using MIL-101(Fe). The findings have significant implications for the development of advanced water treatment technologies.
Enhanced photocatalysis degradation of organophosphorus flame retardant using MIL-101(Fe)/persulfate: Effect of irradiation wavelength and actual water matrixes
Authors: Han Hu, Haixuan Zhang, Ya Chen, Yujia Chen, Li Zhuang, Huase Ou
DOI: 10.1016/j.cej.2019.02.190
Link: https://www.sciencedirect.com/science/article/pii/S1385894719304383
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