Multifunctional glass fibre filter modified with vertical graphene for one-step dynamic water filtration and disinfection

Water purification is of great significance to alleviate water shortage and pollution problems throughout the world. In this work, we develop an electric field (EF)-assisted multifunctional one-step dynamic water filtration and disinfection system based on a vertical graphene-modified glass fibre fi...

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Published inJournal of materials chemistry. A, Materials for energy and sustainability Vol. 1; no. 22; pp. 12125 - 12131
Main Authors Cheng, Shuting, Chen, Mian, Wang, Kun, Liu, Qingqing, Cheng, Yi, Dong, Ruihua, Huang, Kewen, Yuan, Hao, Jiang, Jun, Li, Wenjuan, Li, Junliang, Tu, Ce, Liu, Jian, Jiang, Xingyu, Qi, Yue, Liu, Zhongfan
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 07.06.2022
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Summary:Water purification is of great significance to alleviate water shortage and pollution problems throughout the world. In this work, we develop an electric field (EF)-assisted multifunctional one-step dynamic water filtration and disinfection system based on a vertical graphene-modified glass fibre filter (EF-VG-GFF). Benefiting from the dense and sharp nanowall structures of VG and the localized enhanced EF, the EF-VG-GFF purification system innovatively functions as a filter and an electroporation-disinfection system to simultaneously realize the physical interception and irreversible physiological inactivation of bacteria. As a result, >3.7 log removal efficiency (nearly 99.99% disinfection) is achieved for various examined bacteria under a voltage of several orders of magnitude lower than that in traditional electroporation-disinfection systems, and at a fast treatment speed of 2000 L h −1 m −2 equivalent to only 0.36 s retention time. The excellent purification performances, along with time and energy efficiency, byproduct-free and safety advantages, make the EF-VG-GFF system a competitive choice for the development of high-efficiency, low-cost, and eco-friendly water purification. An electric field (EF)-assisted multifunctional one-step dynamic water filtration and disinfection system is developed based on a vertical graphene-modified glass fibre filter (EF-VG-GFF). The EF-VG-GFF purification system can achieve 99.99% disinfection.
Bibliography:https://doi.org/10.1039/d2ta01086k
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ISSN:2050-7488
2050-7496
DOI:10.1039/d2ta01086k