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Rashed AO, Huynh C, Merenda A, Rodriguez-Andres J, Kong L, Kondo T, Razal JM, Dumée LF. Dry-spun carbon nanotube ultrafiltration membranes tailored by anti-viral metal oxide coatings for human coronavirus 229E capture in water. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 2023; 11:110176. [PMID: 37234558 PMCID: PMC10201849 DOI: 10.1016/j.jece.2023.110176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/21/2023] [Accepted: 05/20/2023] [Indexed: 05/28/2023]
Abstract
Although waterborne virus removal may be achieved using separation membrane technologies, such technologies remain largely inefficient at generating virus-free effluents due to the lack of anti-viral reactivity of conventional membrane materials required to deactivating viruses. Here, a stepwise approach towards simultaneous filtration and disinfection of Human Coronavirus 229E (HCoV-229E) in water effluents, is proposed by engineering dry-spun ultrafiltration carbon nanotube (CNT) membranes, coated with anti-viral SnO2 thin films via atomic layer deposition. The thickness and pore size of the engineered CNT membranes were fine-tuned by varying spinnable CNT sheets and their relative orientations on carbon nanofibre (CNF) porous supports to reach thicknesses less than 1 µm and pore size around 28 nm. The nanoscale SnO2 coatings were found to further reduce the pore size down to ∼21 nm and provide more functional groups on the membrane surface to capture the viruses via size exclusion and electrostatic attractions. The synthesized CNT and SnO2 coated CNT membranes were shown to attain a viral removal efficiency above 6.7 log10 against HCoV-229E virus with fast water permeance up to ∼4 × 103 and 3.5 × 103 L.m-2.h-1.bar-1, respectively. Such high performance was achieved by increasing the dry-spun CNT sheets up to 60 layers, orienting successive 30 CNT layers at 45°, and coating 40 nm SnO2 on the synthesized membranes. The current study provides an efficient scalable fabrication scheme to engineer flexible ultrafiltration CNT-based membranes for cost-effective filtration and inactivation of waterborne viruses to outperform the state-of-the-art ultrafiltration membranes.
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Affiliation(s)
- Ahmed O Rashed
- Deakin University, Geelong, Institute for Frontier Materials, 3216 Waurn Ponds, Victoria, Australia
| | - Chi Huynh
- LINTEC OF AMERICA, INC. Nano-Science and Technology Center, 2900 E. Plano Pkwy. Suite 100, Plano, TX 75074, United States
| | - Andrea Merenda
- School of Science, RMIT University, 124 La Trobe Street, Melbourne, VIC 3000, Australia
| | | | - Lingxue Kong
- Deakin University, Geelong, Institute for Frontier Materials, 3216 Waurn Ponds, Victoria, Australia
| | - Takeshi Kondo
- LINTEC OF AMERICA, INC. Nano-Science and Technology Center, 2900 E. Plano Pkwy. Suite 100, Plano, TX 75074, United States
| | - Joselito M Razal
- Deakin University, Geelong, Institute for Frontier Materials, 3216 Waurn Ponds, Victoria, Australia
| | - Ludovic F Dumée
- Khalifa University, Department of Chemical Engineering, Abu Dhabi, United Arab Emirates
- Research and Innovation Center on CO2 and Hydrogen, Khalifa University, Abu Dhabi, United Arab Emirates
- Center for Membrane and Advanced Water Technology, Khalifa University, Abu Dhabi, United Arab Emirates
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Bhanjana G, Chaudhary GR, Dilbaghi N, Chauhan M, Kim KH, Kumar S. Novel electrochemical sensor for mononitrotoluenes using silver oxide quantum dots. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.10.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Bhanjana G, Mehta N, Chaudhary GR, Dilbaghi N, Kim KH, Kumar S. Novel electrochemical sensing of arsenic ions using a simple graphite pencil electrode modified with tin oxide nanoneedles. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Specially designed B4C/SnO2 nanocomposite for photocatalysis: traditional ceramic with unique properties. APPLIED NANOSCIENCE 2018. [DOI: 10.1007/s13204-018-0662-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Abstract
Boron carbide: A traditional ceramic material shows unique properties when explored in nano-range. Specially designed boron-based nanocomposite has been synthesized by reflux method. The addition of SnO2 in base matrix increases the defect states in boron carbide and shows unique catalytic properties. The calculated texture coefficient and Nelson–Riley factor show that the synthesized nanocomposite has large number of defect states. Also this composite is explored for the first time for catalysis degradation of industrial used dyes. The degradation analysis of industrial pollutants such as Novacron red Huntsman (NRH) and methylene blue (MB) dye reveals that the composite is an efficient catalyst. Degradation study shows that 1 g/L catalyst concentration of B4C/SnO2 degrades NRH and MB dye up to approximately 97.38 and 79.41%, respectively, in 20 min under sunlight irradiation. This water-insoluble catalyst can be recovered and reused.
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