Journal
CHEMOSPHERE
Volume 161, Issue -, Pages 446-453Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2016.07.038
Keywords
Catalyst; Fenton-like reaction; Resource; Selective conversion
Categories
Funding
- National Natural Science Foundation of China [21407021]
- Shanghai Yang-Fan Program of Science and Technology Commission of Shanghai [14YF1405000]
- Fundamental Research Funds for the Central Universities
- DHU Distinguished Young Professor Program
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Effective remediation technologies which can converse the harmful organic pollutants to high-value chemicals are crucial both for wastewater treatment and energy regeneration. This study provides an evidence that extracting useful chemicals from wastewater is feasible through selective conversion of p-chlorophenol to high value formic acid as an example. The reported system works with a readily available Fe-containing ZSM-5 catalyst, water as the solvent and hydrogen peroxide as the oxidant. The yield of formic acid reached up to 50.7% when the Si/Al ratio of ZSM-5 was 80 and the Fe-content was 1.4%. By X-ray adsorption fine structure (XAFS), NH3 temperature-programmed desorption (NH3-TPD) technique, the pyridine adsorption Fourier-transition infrared (Py-IR) spectroscopy and adsorption measurements, it was concluded that the controllable degradation of p-CP could be approached through selective adsorption, the moderate Bronsted acid sites for H2O2 activation and the properly selective conversion control due to extra-framework coordination unsaturated sites (CUS) of Fe. This approach might provide a new avenue for the field of organic pollutant remediation. (C) 2016 Elsevier Ltd. All rights reserved.
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