Silver Nanowire-Modified Filter with Controllable Silver Ion Release for Point-of-Use Disinfection. uri icon

abstract

  • Waterborne diseases related to unsafe water are still major threats to public health in some developing countries and rural areas. Providing affordable and safe drinking water globally remains a great challenge in the coming decades. In this study, we develop a high-throughput and conductive silver nanowire (AgNW)-modified composite filter via depositing thin and ultralong AgNWs on a macroporous substrate. An electrochemical filtration cell (EFC) equipped with the composite filter achieves controllable Ag+ release at a g L-1 level and superior bacterial inactivation performance (>6-log inactivation efficiency) with an operation voltage of only 1 V at a high flux of 100 m3 h-1 m-2. Under such operation conditions, each composite filter (effective area: 0.79 cm2) can treat at least 750 mL of the bacterial suspension (107 CFU mL-1 of Escherichia coli) with a low effluent Ag+ concentration below 50 g L-1 and almost negligible energy consumption of only 70 J m-3.

published proceedings

  • Environ Sci Technol

author list (cited authors)

  • Chen, W., Jiang, J., Zhang, W., Wang, T., Zhou, J., Huang, C., & Xie, X.

complete list of authors

  • Chen, Wensi||Jiang, Jinyue||Zhang, Wenlong||Wang, Ting||Zhou, Jianfeng||Huang, Ching-Hua||Xie, Xing

publication date

  • July 2019