Abstract
The effect of heterogeneous Fenton reaction was studied on methylene blue (MB) and Nitrosomonas europaea (N. europaea) cells. Four Fenton systems were prepared and compared with each other, including Nickel Foam (NF)/TiO2, NF/Bi2WO6, Ceramic foam (CM)/TiO2, and CM/Bi2WO6. The order of effect of fenton reaction ranked as NF/TiO2>CM/TiO2>NF/Bi2WO6>CM/Bi2WO6. In acid or alkaline solution, the removal efficiency also decreased compared with neutral solution. With lower pH values, the nanoparticles were easier to break off from NF skeleton. Thus the synergetic effect of photocatalysis and fenton reaction can not take action. As for CM skeleton, the bond–Si-O-can bind with TiO2 or Bi2WO6. The membrane fluidity was used as an indicating parameter. After being treated by Fenton reaction, N. europaea surface was rougher than the native bacterium and the bulges on cell surface became irregular, which is attributed to change of lipopolysaccharide patches. Polarization of N. europaea cell membrane in acid medium increased more obvious than alkaline medium.
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Funded by National Natural Science Foundation of China, the State Key Laboratory of Urban Water Resource and Environment (No.51208141) and the National Key Research and Development Program of China (No.2016YFC0401102)
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Qiu, S., Li, G., Deng, F. et al. Different heterogeneous fenton reaction based on foam carrier loaded with photocatalysts. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 33, 85–90 (2018). https://doi.org/10.1007/s11595-018-1790-3
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DOI: https://doi.org/10.1007/s11595-018-1790-3