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Title: | Development of highly efficient, renewable and durable alginate composite aerogels for oil/water separation |
Authors: | Zhuang, J Dai, J Ghaffar, SH Yu, Y Tian, Q Fan, M |
Keywords: | TiO2/RGO/alginate composite aerogels;underwater superoleophobicity;oil/water separation;light-driven renewability;environmental friendly;long-term stability |
Issue Date: | 3-Mar-2020 |
Publisher: | Elsevier |
Citation: | Zhuang, J. et al. (2020) 'Development of highly efficient, renewable and durable alginate composite aerogels for oil/water separation', Surface and Coatings Technology, 388, 125551, pp. 1 - 10. doi: 10.1016/j.surfcoat.2020.125551. |
Abstract: | To valorize the naturally abundant biomass, bio-composites made of biomass and functional nano-materials have attracted a great deal of attention. By incorporating alginate with TiO2/RGO nanocomposites, TiO2/RGO/Alginate composite (TRGA) aerogels are fabricated via a facile freeze-drying method. TiO2/RGO nanocomposites can effectively improve the surface roughness and mechanical performance of alginate-based matrix, and provide the aerogels with light-driven self-cleaning ability. Without further chemical modification, the as-fabricated TRGA aerogel shows: i) collective underwater superoleophobicity (θoil > 150° for various oils), ii) effective oil/water separation performance (9.76 L·m−2·s−1 water permeate flux and 99.96% separation efficiency) and iii) excellent light-induced recyclability. With light-driven self-cleaning ability, the continuously deteriorated separation performance of aerogel can be easily renewed, and maintain an effective oil/water separation performance even after 120 cycles. Benefiting from its facile fabrication and excellent properties, the developed aerogel can be a promising candidate for practical oil/water separation in marine oil spill clean-up applications. |
Description: | Supplementary Movie S1 is available online at https://www.sciencedirect.com/science/article/pii/S0257897220302206?via%3Dihub#ac0005:~:text=Download%20all-,Supplementary%20Movie%20S1,-Supplemtantary%20information%20for . Supplementary information is available online at https://www.sciencedirect.com/science/article/pii/S0257897220302206?via%3Dihub#ec0010 . |
URI: | https://bura.brunel.ac.uk/handle/2438/20461 |
DOI: | https://doi.org/10.1016/j.surfcoat.2020.125551 |
ISSN: | 0257-8972 |
Other Identifiers: | ORCID iDs: Jiandong Zhuang https://orcid.org/0000-0002-8620-9678; Seyed Hamidreza Ghaffar https://orcid.org/0000-0002-4694-9508; Mizi Fan https://orcid.org/0000-0002-6609-3110. 125551 |
Appears in Collections: | Dept of Civil and Environmental Engineering Research Papers |
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