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- W2945340785 abstract "Abstract A solar-driven self-heated sponge was developed as a novel sorbent to achieve fast collection of crude oil from spills by taking advantage of light-to-heat conversion to significantly reduce oil viscosity. The sorbent was fabricated via facile dip-coating reduced graphene oxide on a commercial melamine sponge. The photothermal effect of sorbent on absorption of crude oil was investigated through infrared thermal imaging, permeating behavior of crude oil droplet and absorption-recovery of crude oil. The results indicated that the graphene sponge revealed an outstanding light-to-heat conversion capability and stability with almost full absorption (∼98%) of sunlight. The surface temperature spontaneously increased to as high as 89 °C under one sun simulated irradiation (1.0 kW/m2) at room temperature (30 °C), which subsequently reduced the in situ viscosity of the crude oil by over two orders of magnitude. As a result, the absorption time was reduced by approximately 86% for a solar-heating sponge under one sun illumination compared with that of the sponge without light illumination. In addition, the consecutive recovery rate for pumping-driven crude oil clean-up from seawater under one sun illumination was 12 times faster than that of the sponge without light illumination. The proposed solar responsive sorbent design represents a sustainable approach to address the problem of remediation of viscous crude oil spills." @default.
- W2945340785 created "2019-05-29" @default.
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- W2945340785 date "2019-09-01" @default.
- W2945340785 modified "2023-10-12" @default.
- W2945340785 title "Solar-heated graphene sponge for high-efficiency clean-up of viscous crude oil spill" @default.
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- W2945340785 doi "https://doi.org/10.1016/j.jclepro.2019.05.178" @default.
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