J. Mater. Sci. Technol. ›› 2022, Vol. 98: 14-25.DOI: 10.1016/j.jmst.2021.01.063

• Research Article • Previous Articles     Next Articles

Superwetting polyethersulfone membrane functionalized with ZrO2 nanoparticles for polycyclic aromatic hydrocarbon removal

Xiujuan Chena,b, Guohe Huanga,b,*(), Chunjiang Anc, Renfei Fengd, Yinghui Wua, Charley Huange   

  1. aDepartment of Environmental Systems Engineering, University of Regina, Regina, Saskatchewan, S4S 0A2, Canada
    bChina-Canada Center for Energy, Environment and Ecology Research, UofR-BNU, Beijing Normal University, Beijing 100875, China
    cDepartment of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada
    dCanadian Light Source, Saskatoon, S7N 2V3, Canada
    eDepartment of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canadaa
  • Received:2020-07-29 Accepted:2021-01-23 Published:2022-01-30 Online:2022-01-25
  • Contact: Guohe Huang
  • About author:*Department of Environmental Systems Engineering,University of Regina, Regina, Saskatchewan, S4S 0A2, Canada.E-mail address: huangg@regina.ca (G. Huang).

Abstract:

Polycyclic aromatic hydrocarbons (PAHs) are persistent and widespread in the aquatic environment, causing potential hazards for human health. In this study, a superwetting and robust PES-PAA-ZrO2 nanofiltration membrane was proposed through surface modification for PAH removal with high efficiency. A ZrO2 coating was formed on polyethersulfone (PES) membrane surface through chemical bonding, thus the PES-PAA-ZrO2 membrane exhibited super-hydrophilicity, under-water oleophobicity, and excellent stability. In comparison with the original PES membrane, the water contact angle of the modified membrane was significantly decreased from about 50° to less than 10°, and quickly dropped to 0° within 1 s. This provided a much lower energy barrier for water permeation due to its super-high water affinity. The wastewater treatment efficiency was increased by about 4 times after modification with more than 90% of PAH rejection rate. The excellent robustness of PES-PAA-ZrO2 membrane was verified under various conditions, which gave the membrane practical potential for long-term operation.

Key words: Superwetting nanofiltration membrane, Nano-ZrO2 self-assembly, Synchrotron-based analyses, PAH removal