Fabrication of SnO2-Sb reactive membrane electrodes for high-efficiency electrochemical inactivation of bacteria and viruses in water

Yang, Chao; Li, Wen; Li, Ying-yu; Li, Xiaoyan

doi:10.1016/j.cej.2022.137327

Cited by 20 publications

(8 citation statements)

References 42 publications

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“…3f) at 10 V. Similar to the previous observations, the bacteriophage inactivation increased with increasing voltage in the flow-through mode. 61–63 Moreover, the inactivation efficiency of MS2 achieved with the fabricated filters was faster than that of previous electrochemical inactivation reports. 20,63 Besides the high disinfection performance of the filter, they consist of nanofibrous structures that can facilitate low energy consumption, as described in other studies with nanowires.…”

Section: Resultsmentioning

confidence: 72%

Electrochemical inactivation of enteric viruses MS2, T4, and Phi6 using doped laser-induced graphene electrodes and filters

Nair

Kumar

Barbhuiya

et al. 2023

Environ. Sci.: Nano

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Section: Resultsmentioning

confidence: 72%

Electrochemical inactivation of enteric viruses MS2, T4, and Phi6 using doped laser-induced graphene electrodes and filters

Nair

Kumar

Barbhuiya

et al. 2023

Environ. Sci.: Nano

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“…The fibrous structure might have played a significant role in enhancing the electric field, which could be one of the reasons for higher inactivation despite the same voltage application . The LIG fibers’ size ranges from 250 to 750 nm diameter sizes, and the earlier research on different nanofibers suggested to have an enhanced electric field effect on nanofibers’ tip and caused low-voltage electroporation in the bacterial cells and cause damage. , Furthermore, due to the highly porous nature of the filters (UP10-ID7 and PES15-ID6), the tortuosity of the membrane filters can significantly enhance the distance traveled by the cell, thereby increasing their chances of capturing . The membranes and LIG filter thickness are shown in Table S4, and the porosity ranges from 17 to 24%, as shown in Figure S8.…”

Section: Resultsmentioning

confidence: 99%

“…57,58 Furthermore, due to the highly porous nature of the filters (UP10-ID7 and PES15-ID6), the tortuosity of the membrane filters can significantly enhance the distance traveled by the cell, thereby increasing their chances of capturing. 59 The membranes and LIG filter thickness are shown in Table S4, and the porosity ranges from 17 to 24%, as shown in Figure S8. On the contrary, the flaky structure might have reduced the effective surface area of the electroconductive filters, which ultimately led to lesser inactivation.…”

Section: Methylene Blue Dye and Salt Removalmentioning

confidence: 99%

Effect of Laser Parameters on Laser-Induced Graphene Filter Fabrication and Its Performance for Desalination and Water Purification

Misra

Dixit

Singh

2023

ACS Appl. Mater. Interfaces

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Laser-induced graphene (LIG) is a low-cost, chemical-free single-step fabrication process and has shown its potential in water treatment, electronics, and sensing. LIG fabrication optimization is mostly explored for dense polyimide (PI) polymers. However, LIG-based filters and membranes for water treatment need to be porous, and additional steps are required to get porous surfaces from PI-based surfaces. Polyethersulfone (PES) porous membranes are cost-effective and are common in water purification as compared to PI; further, the optimization of LIG fabrication on PES-based porous membranes is not explored. So, this study demonstrated the fabrication, optimization, and characterization of LIG with different laser parameters such as power, speed, image density (ID), focusing, laser platforms, and membrane support layer effect on porous PES commercial (UP010) and lab-casted 15% PES (PES15) membranes. The performance of optimized LIG filters was tested for interfacial evaporation (IE)-based desalination in single and stacked layer configuration and water purification applications such as dye removal and disinfection. IE was done in Joule heating (JH) and solar heating (SH) modes, and the UP010-ID7 LIG filter showed the highest JH evaporation rates of ∼1.1, 1.8, and 2.82 kg m −2 h −1 in single, double, and triple stacked configurations, respectively. Using a JH IE setup, the best-performing UP010-ID7 LIG filters have also shown ∼100% removal of methylene blue dye from the contaminated water. Furthermore, all LIG filters showed a complete 6-log bacterial inhibition at the 5 V filtration experiments; at 2.5 V, the optimized LIG filters showed a higher removal than the non-optimized filters. Additionally, the LIGs obtained with the aluminum platform were the best quality. This work demonstrates that laser power, ID, platform, and membrane support are critical parameters for the best-performing PES-LIG filters, and they can be effectively utilized to fabricate PES-based LIG porous surfaces for various energy, environmental, and catalysis applications.

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“…Rhizopus, Pseudomonas, and Agrobacteria were effectively killed using mixed metal oxide anodes, which is attributed to the rapid formation of chlorine/hypochlorite (Särkkä et al, 2008). The research shows that the porous SnO 2 sb reaction membrane electrode (RME) performs very well in the disinfection of wastewater, generates a large number of hydroxyl radicals under the applied voltage of 3.5 V, and realizes 100% removal of E. coli and phage MS2, which has practical application potential (Yang et al, 2022). However, in practical application, the concentration of suspended solids in wastewater is high, which is easy to adhere to the surface of RME, thus reducing the disinfection efficiency.…”

Section: Electrochemical Oxidationmentioning

confidence: 98%

Research progress of electrochemical oxidation and self-action of electric field for medical wastewater treatment

Tanida

Zheng²,

Cai³

et al. 2023

Front. Microbiol.

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A large number of pathogenic microorganisms exist in medical wastewater, which could invade the human body through the water and cause harm to human health. With the global pandemic coronavirus (COVID-19), public health safety become particularly important, and medical wastewater treatment is an important part of it. In particular, electrochemical disinfection technology has been widely studied in medical wastewater treatment due to its greenness, high efficiency, convenient operation, and other advantages. In this paper, the development status of electrochemical disinfection technology in the treatment of medical wastewater is reviewed, and an electrochemical three-stage disinfection system is proposed for the treatment of medical wastewater. Moreover, prospects for the electrochemical treatment of medical wastewater will be presented. It is hoped that this review could provide insight and guidance for the research and application of electrochemical disinfection technology to treat medical wastewater.

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Fabrication of SnO2-Sb reactive membrane electrodes for high-efficiency electrochemical inactivation of bacteria and viruses in water

Cited by 20 publications

References 42 publications

Electrochemical inactivation of enteric viruses MS2, T4, and Phi6 using doped laser-induced graphene electrodes and filters

Electrochemical inactivation of enteric viruses MS2, T4, and Phi6 using doped laser-induced graphene electrodes and filters

Effect of Laser Parameters on Laser-Induced Graphene Filter Fabrication and Its Performance for Desalination and Water Purification

Research progress of electrochemical oxidation and self-action of electric field for medical wastewater treatment

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