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Photo-degradation and photo-mineralization of reactive brilliant orange KN-5R by nano-photocatalyst–modified 3D fabrics

journal contribution
posted on 2017-01-01, 00:00 authored by S M Ghoreishian, M Norouzi, Khash Badii
In this study, ZnO, TiO 2 and ZnO/TiO 2 nano-photocatalysts (nphs) were loaded into 3-dimensional fabrics (spacer fabrics) for photo-decolorization and photo-mineralization of Reactive Brilliant Orange KN-5R (RBO KN-5R). Surface morphology and the presence of nphs on the spacer fabrics were studied utilizing SEM and FTIR, respectively. Also, the effect of main operational parameters on the decolorization efficiency was investigated and the process was optimized. Furthermore, total organic carbon (TOC) analysis was employed to scrutinize the photo-mineralization of the dye. Complete decolorization, high efficient mineralization and 90% TOC reduction were achieved in the case of ZnO/TiO nphs after 120 min of UV light irradiation. Also, the kinetic analyses indicated that the photocatalytic 2 decolorization rate followed the Langmuir–Hinshelwood kinetic model. The results revealed that the spacer fabrics loaded with ZnO/TiO 2 nphs can be considered as an effective system for decolorization and TOC reduction of reactive dyes in textile wastewater.

History

Journal

Desalination and water treatment

Volume

58

Pagination

298 - 307

Publisher

Balaban Publishers

Location

Hopkinton, Mass.

ISSN

1944-3994

eISSN

1944-3986

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2017, Desalination Publications

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