| Titre : |
Visible-light-driven photocatalytic degradation of rhodamine B using Bi2WO6/GO deposited on polyethylene terephthalate fabric |
| Type de document : |
texte imprimé |
| Auteurs : |
Zoufei Du, Auteur ; Ce Cui, Auteur ; Sihang Zhang, Auteur ; Hongyan Xiao, Auteur ; Erhui Ren, Auteur ; Ronghui Guo, Auteur ; Shouxiang Jiang, Auteur |
| Année de publication : |
2020 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Lumière visible
Oxyde de graphène
Photocatalyse
Polyéthylène téréphtalate
Rhodamine
Textiles et tissus synthétiques
Tungstate de bismuth
|
| Index. décimale : |
677.4 Textiles artificiels |
| Résumé : |
The environmental repercussions of wastewater from the dye process mean that it is very important to obtain an eco-friendly photocatalyst that would degrade wastewater. Herein, bismuth tungstate/graphene oxide (Bi2WO6/GO) composites are fabricated through in-situ hydrothermal reaction and then the Bi2WO6/GO photocatalysts are deposited onto polyethylene terephthalate (PET) fabric. The obtained Bi2WO6/GO deposited PET fabrics are then characterized through XPS, Raman, SEM, TEM, XRD, UV-vis, BET method and photoluminescence spectroscopy (PL) to investigate their chemical and crystal structures, morphology, optical property, surface area and photochemical properties. Photocatalytic performance is studied through examining the rate of degrading rhodamine B (RhB) under visible light. Surface of PET fibers is densely covered with Bi2WO6/GO. Bi2WO6/GO deposited PET fabrics show a broad absorption band in the visible spectra. Removal rate of RhB on the Bi2WO6/GO deposited PET fabric is the highest with the GO content of 2 g/L (labeled as Bi2WO6/2 g/LGO). The result of active species experiment shows that superoxide radicals (·O2−) plays a major role in the degradation of RhB. Moreover, Bi2WO6/2 g/LGO deposited PET fabric shows excellent cycle stability of photocatalytic degradation for RhB. The findings in this work can be extended to preparation other types of composite on the textile for photocatalysis, which can be applied to remove dyes in the wastewater produced by the textile or leather industry. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparation of Bi2WO6/GO deposited PET fabric - Characterizations - Photocatalytic activity evaluation
- RESULTS AND DISCUSSION : XPS and Raman spectra - Morphology - Crystal structure - UV-vis DRS - Surface area - PL analysis - Photocatalytic properties of Bi2WO6/GO deposited PET fabrics - Effects of Bi2WO6/2 g/L GO content and concentration of RhB on photocatalytic performance - Recycle stability and trapping experiment of Bi2WO6/2 g/L GO deposited PET fabric |
| DOI : |
https://doi.org/10.1186/s42825-020-00029-w |
| En ligne : |
https://link.springer.com/content/pdf/10.1186/s42825-020-00029-w.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37449 |
in JOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020)
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