Work

Perfluorohexane Sulfonate Decomposition In a High Photon Flux UV/sulfite System: Kinetics and Influential factors

Year: 2020

Type: conference-paper

Abstract: Hydrated electron (eaq -) is a strong reductant, and is reported promising for recalcitrant organic pollutants decomposition. In this study, eaq - based decomposition of one representative short chain perfluorinated compounds, perfluorohexane sulfonate (PFHxS) in a high photon flux UV/sulfite system was investigated. The observed rate constant (kobs) of PFHxS was 0.028 min-1, which was one order of magnitude faster than that in previously studied UV/iodide system. UV intensity played an important role in the decomposition, when UV intensity was adjusted from 25% I0 to 100% I0, kobs of PFHxS decomposition increased from 0.010 min-1 to 0.028 min-. PFHxS decomposition efficiency was greatly enhanced in alkaline solution compared to that in the acidic solution.

Source: IOP Conference Series Earth and Environmental Science

DOI: 10.1088/1755-1315/546/4/042023

Authors: Yurong Gu, Jia Zhu, Zijun Dong, Xi Zhang

Institution: Shenzhen Polytechnic University

Language: English

Topic: Per- and polyfluoroalkyl substances research

Subfield: Environmental Chemistry

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: diamond

Funder: Science, Technology and Innovation Commission of Shenzhen Municipality