Feng, H;
Xu, D;
Wang, Q;
Dong, Y;
Zhang, G;
Lv, L;
Ren, Z;
... Campos, LC; + view all
(2020)
Enhancement of superoxide evolution by nickel-doped for the removal of organic pollutants and cyanobacteria.
Journal of the Taiwan Institute of Chemical Engineers
, 113
pp. 396-405.
10.1016/j.jtice.2020.08.012.
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Abstract
Organic pollutants and cyanobacteria exist in water widely, which make significant impacts on human health so that appropriate methods are needed for their removal. In this work, Ni doped Bismuth oxychloride (BiOCl) photocatalysts were successfully synthesized by a simple hydrothermal method. The light absorption and charge carriers separation involved in superoxide (·O2^{-}) generation can be optimized with the introduction of Ni element. And photocatalytic degradation experiments showed that the 9% Ni-BiOCl enhanced photodegradation activity of organic matter (Rh B and BPA) as well as M. aeruginosa. The degradation efficiency of Ni-BiOCl on the removal of Rh B and BPA were approximately 34.99% and 57% higher than that of pristine BiOCl. Furthermore, the algae inactivation was systematically studied by three-dimensional fluorescence spectrum. Results showed that ·O2− acted an irreplaceable role among the experiment of photocatalytic algae removal, and the details were described as ·O2^{−} and h^{+} first destroyed the cell wall of M. aeruginosa, secondly inactivated the active fluorescent substances in the cell, and then catalyzed the oxidation of intracellular exudates such as chlorophyll and phycocyanin as inorganic substances. This study provides a multifunctional catalyst for controlling water pollution and environmental restoration.
| Type: | Article |
|---|---|
| Title: | Enhancement of superoxide evolution by nickel-doped for the removal of organic pollutants and cyanobacteria |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.jtice.2020.08.012 |
| Publisher version: | https://doi.org/10.1016/j.jtice.2020.08.012 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10113506 |
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