期刊
NANOTECHNOLOGY
卷 31, 期 22, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab76eb
关键词
oil-spill remediation; graphene wrapped sponge; viscosity; optical dosage
资金
- Natural Science Foundation of China [21806101, 51476094, 51590901]
- Natural Science Foundation of Shanghai [16ZR1412600, 15ZR1416900]
- Gaoyuan Discipline of Shanghai-Environmental Science and Engineering (Resource Recycling Science and Engineering)
- Shanghai Eastern Professorship grant
- Shu Guang project - Shanghai Municipal Education Commission
- Shanghai Education Development Foundation [15SG52]
Heating under low solar radiation intensity is demonstrated to facilitate the cleaning of crude oil by the hydrophobic nanocomposite adsorbents of reduced graphene oxide (RGO) melamine sponge (MS@RGO) foams. The heat generated by the irradiation reduces the viscosity of the crude oil, and consequently increases the oil-diffusion coefficient of the pores of the MS@RGO foams and speeds up the oil-sorption rate. Even under a solar radiation intensity as low as 2 kW m(-2), the temperature of crude oil rapidly rises to 68 degrees C or higher within 10 min. It only takes 29 s to completely absorb 6 g of crude oil at 60 degrees C by three tiny pieces of MS@RGO foam. This work makes better use of the excellent photothermal conversion characteristics of crude oil, and its photothermal conversion mechanism under simulated solar radiation is also discussed. This methodology can be adopted to clean up viscous crude oil or extract other chemicals effectively at a large scale, and provides a complete solution for the cleanup of crude oil in the sea or on the beach for actual engineering applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据