A Performance Study of CNT/TiO₂/ PVA Loaded on the Paper Filter for Benzene Treatment from Cigarette Smoke

Abstract:

This work has studied the performance of benzene treatment from cigarette smoke using the prepared CNT/TiO₂/PVA loaded on the paper filter in the air purifier reactor. CNT/TiO₂ nanomaterial was prepared from a mixture of carbon nanotubes modified with sulfuric acid and titanium dioxide by a simple mixing method in the ambient temperature. CNT/TiO₂ nanomaterial was then loaded on the paper filter by a filtrating technique using 12%w/v polyvinyl alcohol (PVA) as a co-polymer. The weight of CNT/TiO₂ loaded on the paper filter was fixed at 3 g. The ratios of CNT: TiO₂ was varied at 1:5, 1:10, and 1:15 w/w, respectively. The performance of air purifier using CNT/TiO₂/PVA loaded on the paper filter with various ratios was investigated on the photocatalytic activity of benzene treatment from cigarette smoke under visible light. The decreased benzene concentrations were analyzed by GC-FID. As the results, the ratio of CNT/TiO₂ loaded on the paper filter at 1:10 showed the highest performance by up to 45%, while the ratio of CNT/TiO₂ at 1:15 showed 30% and CNT/TiO₂ at 1:5 was the lowest of 22%, respectively. This is because adding the optimum CNT to TiO₂ can be improved the adsorption efficiency and the ability to degrade benzene from cigarette smoke. Additionally, CNT also assists in reducing the recombination of TiO₂ particles that effect to the high performance on the photocatalytic activity. Therefore, the prepared CNT/TiO₂/PVA loaded on the paper filter could be used for the air treatment.

• Periodical: Materials Science Forum (Volume 990)
• Pages: 312-317
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.990.312
• Online since: May 2020
• Authors: Mathana Wongaree*, Adisak Bootwong
• Keywords: Benzene, Cigarette Smoke, CNT/TiO₂/ PVA, Nanomaterial, Photocatalytic Activity

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