醇胺改性氧化石墨烯的制备及二氧化硫吸附性能

doi:10.11896/j.issn.1005-023X.2018.08.004

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Abstract Solid adsorbent has displayed great application potential in the field of flue gas desulfurization. In this study, using GO as substrate material and the alcoholamines such as ethanolamine (MEA), diethanolamine (DEA) and triethanolamine (TEA) as modifiers, we prepared GO-MEA,GO-DEA and GO-TEA as adsorbents for SO₂, and conducted the characterization by means of scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectrometry (EDS) and elemental analysis (EA). The SO₂adsorption capacities of the products were also determined by gravimetric method. Our experiment validated the significantly improved SO₂ adsorption capacities of the three types of alcoholamine-immobilized GOs compared to ordinary GO. In particular, GO-DEA exhibits promising adsorption performance toward SO₂, as the equilibrium adsorption capacity within 15 h is 188.5 mg/g initially and 165.3 mg/g after five cycles in which the desorption was processed under vacuum at 130 ℃.

Key words： graphene oxide alcoholamine SO₂ adsorption

Published: 25 April 2018 Online: 2018-05-11

CLC number:

TQ028

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	Articles by authors
	LI Jinwei
	HUANG Lilan
	XIN Qingping
	YE Hui
	ZHAO Lizhi
	DING Xiaoli
	LIN Ligang
	WANG Shaofei
	ZHANG Yuzhong

Cite this article:

LI Jinwei,HUANG Lilan,XIN Qingping, et al. Preparation of Alcoholamine-modified Graphene Oxide with an Application to Sulfur Dioxide Adsorption[J]. Materials Reports, 2018, 32(8): 1224-1229.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.08.004 OR https://www.mater-rep.com/EN/Y2018/V32/I8/1224

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