期刊
CERAMICS INTERNATIONAL
卷 45, 期 7, 页码 9618-9624出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2018.10.208
关键词
Films; Composites; N-TiO2; Functional applications; Microplastics
资金
- UANL's Programa de Apoyo a la Investigacion Cientifica y Tecnologica (PAICYT) [IT691-18]
Currently, the global community considers microplastics as a marine pollutant of emerging concern. To mitigate the oceanic microplastic pollution, it is necessary to reduce inputs from inland. In this sense, we present the first report on the use of photocatalysis for the degradation of HDPE microplastics extracted from a commercially available facial scrub. This was achieved by using two proposed semiconductors based on N-TiO2. One was green synthesized using the extrapallial fluid of fresh blue mussels, which presented an excellent capacity to promote photocatalytic degradation in solid and aqueous environments; while the second photocatalyst, obtained from a conventional sol-gel synthesis, presented good capacity to promote mass loss of the as-extracted microplastics in an aqueous environment. Mass losses, SEM and FTIR analysis confirmed HDPE degradation. Results showed that environmental conditions, microplastics/N-TiO2 interaction and the N-TiO2 surface area should be carefully set and monitored in order of avoiding the arrest of photocatalysis.
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