稻糠基磁性高吸油材料的仿生制备及性能研究

doi:10.11896/j.issn.1005-023X.2018.02.012

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Abstract

A novel magnetic rice chaff oil absorption material was successfully synthesized by immobilizing Fe₃O₄ nanoparticles onto rice chaff with the aid of mussel-inspired polydopamine and subsequently chemical modification by octadecylamine with low surface energy. Scanning electron microscope (SEM), infrared spectrometer (FTIR) and X-ray diffraction (XRD) instrument were used to characterize the morphology, crystallinity and functional groups of the obtained magnetic rice chaff. The results indicated the magnetic rice chaff had large water contact angle of 135° and magnetic saturation intensity of 39.6 emu/g. The highest oil absorption of magnetic rice chaff reached 6.83 times of its own weight for chloroform. The prepared magnetic rice chaff oil absorption material with high recyclability could be widely used in large-scale removal of spilled oil from water.

Key words： dopamine rich chaff octadecylamine magnetic oil absorption material

Published: 25 January 2018 Online: 2018-01-25

CLC number:

O69

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	Articles by authors
	Xu LI
	Ziru WANG
	Li YANG
	Zhendong ZHANG
	Youting ZHANG
	Yifan DU

Cite this article:

Xu LI,Ziru WANG,Li YANG, et al. Synthesis and Performance of Magnetic Oil Absorption Material with Rice Chaff Support[J]. Materials Reports, 2018, 32(2): 219-222.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.02.012 OR https://www.mater-rep.com/EN/Y2018/V32/I2/219

SEM images of the (a) original rice chaff, (b) Fe₃O₄ nanoparticles and (c, d) magnetic rice chaff oil absorption material

EDS spectra of (a) the original rice chaff and (b) magnetic rice chaff oil absorption material

XRD patterns of (a) Fe₃O₄ nanoparticles, (b) the original rice chaff and (c) magnetic rice chaff oil absorption material

FTIR spectra of (a) the original rice chaff and (b) magnetic rice chaff oil absorption material

Contact angle of a 2 μL water droplet on the (a) rice chaff and (b) magnetic rice chaff oil absorption material

Magnetic hysteresis chart of (a) Fe₃O₄ nanoparticles and (b) magnetic rice chaff oil absorption material

Oil absorption capacity of rice chaff and magnetic rice chaff oil absorption material for different oils

Oil absorption capacity of magnetic rice chaff oil absorption material in (a) different concentration of NaCl and (b) different pH value

Recyclability of magnetic rice chaff oil absorption material for different oils

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