酒石酸铁改性废旧棉织物Fenton反应催化剂的制备及其应用性能研究

doi:10.11896/j.issn.1005-023X.2018.06.007

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Abstract In order to enhance the integrated utilization of waste cotton fabric, tartaric acid was used to modify the waste cotton fabric through pad-dry-cure process for introducing surface hydroxyl groups, which coordinated with Fe³⁺ ions to produce the ferric tartrate-modified cotton fabric. Effect of concentrations of tartaric acid and NaH₂PO₄, as well as curing temperature on hydroxyl groups and Fe content on the surface of ferric tartrate-modified cotton fabric was studied. After characterization by SEM and FTIR, ferric tartrate-modified cotton fabric was evaluated as heterogeneous photo-Fenton catalysts for the oxidative degradation of Acid Red 88. The results indicated that carboxyl groups produced from esterfication between tartaric acid and cotton fiber coordinated with Fe³⁺ ions to prepare the ferric tartrate-modified cotton fabric. Increasing concentrations of tartaric acid and NaH₂PO₄ as well as elevation of curing temperature enhanced Fe content on the surface of ferric tartrate-modified cotton fabric. The best modification of cotton fabric was obtained at the condition of 10 wt% tartaric acid and 5 wt% NaH₂PO₄ as well as curing temperature of 180 ℃. The ferric tartrate-modified cotton fabric could accelerate the dye degradation under light irradiation. Higher Fe content could increase its catalytic activity. Besides, increasing H₂O₂ concentration favored the dye degradation. The highest degradation efficiency of the dye was obtained when 4.5 mmol·L^-1 H₂O₂ was used at pH=6 with higher temperature. The colorants dyed on the ferric tartrate-mo-dified cotton fabric showed a slight effect on its catalytic performance.

Key words： waste cotton fabric tartaric acid iron(Ⅲ) ions; catalysis dye degradation

Published: 25 March 2018 Online: 2018-03-25

CLC number:

TS195.2

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	Articles by authors
	LIU Guangzeng
	DONG Yongchun
	LI Bing
	WANG Peng
	CUI Guixin

Cite this article:

LIU Guangzeng,DONG Yongchun,LI Bing, et al. Fabrication and Application Performance of Ferric-tartrate-modified Waste Cotton Fabric Serving as Fenton Catalyst[J]. Materials Reports, 2018, 32(6): 888-893.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.06.007 OR https://www.mater-rep.com/EN/Y2018/V32/I6/888

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