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Layer-by-layer Coating of MIL-100(Fe) on a Cotton Fabric for Purification of Water-soluble Dyes by the Combined Effect of Adsorption and Photocatalytic Degradation

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Journal RSC Adv
Specialty Chemistry
Date 2022 Jun 29
PMID 35765425
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Abstract

Efforts have been made for sustainable development of adsorbents to purify organic contaminants from wastewater. In this study, a MIL-100(Fe) based textile that acts as a reusable adsorbent and photocatalytic agent was developed by synthesizing MIL-100(Fe) onto a cotton fabric by the layer-by-layer (LBL) process using water-based solutions. As the number of LBL cycles increased, the add-on's of MIL-100(Fe) showed a drastic increase up to 8 cycles, then showed gradual increases with further treatments. The overall adsorption performance was enhanced with the increased MIL-100(Fe) add-on's, but the specific adsorption efficiency per unit mass of MIL-100(Fe) was reduced as the LBL cycles increased, implying the reduced average adsorption efficiency with a thicker coating. To examine the reusability of the adsorbent, desorption efficiency of RhB was measured. The desorption after the first-time adsorption was not efficient due to the strong binding inside the pores. For the later cycles of adsorption-desorption, desorption occurred more efficiently, probably because RhB molecules were adhered mostly at the outer surface of the MOF layer. Simultaneously, MIL-100(Fe)@cotton demonstrated the photocatalytic degradation performance against RhB in the presence of HO by the Fenton reaction. With the combined effect of adsorption and photodegradation, the developed fabric attained 96% removal efficiency for RhB dissolved in water. This study demonstrates an environmentally responsible process of developing a MIL-100(Fe) coated fabric that is readily available for effective removal of organic foulants in water. This fabrication method can be applied as a scalable manufacturing of metal-organic framework-based photocatalytic adsorbent textiles.

References
1.
He Y, Dong W, Li X, Wang D, Yang Q, Deng P . Modified MIL-100(Fe) for enhanced photocatalytic degradation of tetracycline under visible-light irradiation. J Colloid Interface Sci. 2020; 574:364-376. DOI: 10.1016/j.jcis.2020.04.075. View

2.
Gil-San-Millan R, Delgado P, Lopez-Maya E, Martin-Romera J, Barea E, Navarro J . Layer-by-Layer Integration of Zirconium Metal-Organic Frameworks onto Activated Carbon Spheres and Fabrics with Model Nerve Agent Detoxification Properties. ACS Appl Mater Interfaces. 2021; 13(42):50491-50496. PMC: 8554759. DOI: 10.1021/acsami.1c12095. View

3.
Jang H, Kang J, Park J, Lee S, Kim S . Metal-organic framework MIL-100(Fe) for dye removal in aqueous solutions: Prediction by artificial neural network and response surface methodology modeling. Environ Pollut. 2020; 267:115583. DOI: 10.1016/j.envpol.2020.115583. View

4.
Yagub M, Sen T, Afroze S, Ang H . Dye and its removal from aqueous solution by adsorption: a review. Adv Colloid Interface Sci. 2014; 209:172-84. DOI: 10.1016/j.cis.2014.04.002. View

5.
Ramanayaka S, Vithanage M, Sarmah A, An T, Kim K, Ok Y . Performance of metal-organic frameworks for the adsorptive removal of potentially toxic elements in a water system: a critical review. RSC Adv. 2022; 9(59):34359-34376. PMC: 9073907. DOI: 10.1039/c9ra06879a. View