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Complete Photocatalytic Mineralization of Microplastic on TiO2 Nanoparticle Film

Open access
Nabi, Iqra, Bacha, Aziz-Ur-Rahim, Li, Kejian, Cheng, Hanyun, Wang, Tao, Liu, Yangyang, Ajmal, Saira, Yang, Yang, Feng, Yiqing, Zhang, Liwu·2020·iScience

Abstract

Recently, the environmental impacts of microplastics have received extensive attention owing to their accumulation in the environment. However, developing efficient technology for the control and purification of microplastics is still a big challenge. Herein, we investigated the photocatalytic degradation of typical microplastics such as polystyrene (PS) microspheres and polyethylene (PE) over TiO 2 nanoparticle films under UV light irradiation. TiO 2 nanoparticle film made with Triton X-100 showed complete mineralization (98.40%) of 400-nm PS in 12 h, while degradation for varying sizes of PS was also studied. PE degradation experiment presented a high photodegradation rate after 36 h. CO 2 was found as the main end product. The degradation mechanism and intermediates were studied by in situ DRIFTS and HPPI-TOFMS, showing the generation of hydroxyl, carbonyl, and carbon-hydrogen groups during the photodegradation of PS. This study provides a green and cost-efficient strategy for the control of microplastics contamination in the environment.

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Metadata

Authors
Nabi, I., Bacha, A.-U.-R., Li, K., Cheng, H., Wang, T., Liu, Y., Ajmal, S., Yang, Y., Feng, Y., & Zhang, L.
Venue
iScience
Publisher
Elsevier BV
Published
2020-07
Volume
23
Issue
7
Pages
101326
ISSN
2589-0042 (ISSN-L)
OpenAlex
W3039031586
Cited by
446
References
3
FWCI
9.03
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Complete Photocatalytic Mineralization of Microplastic on TiO2 Nanoparticle Film. https://app.cochat.ai/papers/10.1016/j.isci.2020.101326
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Nabi, I., Bacha, A.-U.-R., Li, K., Cheng, H., Wang, T., Liu, Y., Ajmal, S., Yang, Y., Feng, Y., & Zhang, L. (2020). Complete Photocatalytic Mineralization of Microplastic on TiO2 Nanoparticle Film. iScience. https://doi.org/10.1016/j.isci.2020.101326

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