Solar Light-Induced Decolorization of Safranin O Using Unmodified and Gold-Modified Semiconductor Oxides
Unmodified and gold-modified semiconductor oxides were used for the complete decolorization of non-buffered aqueous safranin O solutions. Photocatalytic properties of commercially available ZnO and TiO2 (anatase nanopowder) were compared with those of gold-modified ZnO (Au/ZnO). Au/ZnO was obtained...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2018-04-01
|
Series: | Iranian Journal of Chemistry & Chemical Engineering |
Subjects: | |
Online Access: | http://www.ijcce.ac.ir/article_32912_43aea63d49710d5c2110df2b81d5f733.pdf |
id |
doaj-7d0d87e936584004bfbb65d6eb08631b |
---|---|
record_format |
Article |
spelling |
doaj-7d0d87e936584004bfbb65d6eb08631b2020-11-25T03:42:21ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering 1021-99861021-99862018-04-0137215115632912Solar Light-Induced Decolorization of Safranin O Using Unmodified and Gold-Modified Semiconductor OxidesZsigmond Papp0Faculty of Biofarming, Megatrend University, Maršala Tita 39, 24300 Bačka Topola, SERBIAUnmodified and gold-modified semiconductor oxides were used for the complete decolorization of non-buffered aqueous safranin O solutions. Photocatalytic properties of commercially available ZnO and TiO2 (anatase nanopowder) were compared with those of gold-modified ZnO (Au/ZnO). Au/ZnO was obtained from commercial ZnO powder through direct current sputter coating. ZnO-based catalysts show significantly higher decolorization power in comparison with TiO2. Au/ZnO show slightly higher activity than unmodified ZnO. Decolorization of safranin O using Au/ZnO was additionally tested in different types of mineral water. The decolorization efficiency in mineral waters was negatively correlated with the dry residue content (180 °C) and in all cases was less than in distilled water. The inhibiting effect of hydrogen carbonate was additionally investigated.http://www.ijcce.ac.ir/article_32912_43aea63d49710d5c2110df2b81d5f733.pdfzinc oxidetitanium dioxidemodification with golddecolorizationsafranin |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zsigmond Papp |
spellingShingle |
Zsigmond Papp Solar Light-Induced Decolorization of Safranin O Using Unmodified and Gold-Modified Semiconductor Oxides Iranian Journal of Chemistry & Chemical Engineering zinc oxide titanium dioxide modification with gold decolorization safranin |
author_facet |
Zsigmond Papp |
author_sort |
Zsigmond Papp |
title |
Solar Light-Induced Decolorization of Safranin O Using Unmodified and Gold-Modified Semiconductor Oxides |
title_short |
Solar Light-Induced Decolorization of Safranin O Using Unmodified and Gold-Modified Semiconductor Oxides |
title_full |
Solar Light-Induced Decolorization of Safranin O Using Unmodified and Gold-Modified Semiconductor Oxides |
title_fullStr |
Solar Light-Induced Decolorization of Safranin O Using Unmodified and Gold-Modified Semiconductor Oxides |
title_full_unstemmed |
Solar Light-Induced Decolorization of Safranin O Using Unmodified and Gold-Modified Semiconductor Oxides |
title_sort |
solar light-induced decolorization of safranin o using unmodified and gold-modified semiconductor oxides |
publisher |
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
series |
Iranian Journal of Chemistry & Chemical Engineering |
issn |
1021-9986 1021-9986 |
publishDate |
2018-04-01 |
description |
Unmodified and gold-modified semiconductor oxides were used for the complete decolorization of non-buffered aqueous safranin O solutions. Photocatalytic properties of commercially available ZnO and TiO2 (anatase nanopowder) were compared with those of gold-modified ZnO (Au/ZnO). Au/ZnO was obtained from commercial ZnO powder through direct current sputter coating. ZnO-based catalysts show significantly higher decolorization power in comparison with TiO2. Au/ZnO show slightly higher activity than unmodified ZnO. Decolorization of safranin O using Au/ZnO was additionally tested in different types of mineral water. The decolorization efficiency in mineral waters was negatively correlated with the dry residue content (180 °C) and in all cases was less than in distilled water. The inhibiting effect of hydrogen carbonate was additionally investigated. |
topic |
zinc oxide titanium dioxide modification with gold decolorization safranin |
url |
http://www.ijcce.ac.ir/article_32912_43aea63d49710d5c2110df2b81d5f733.pdf |
work_keys_str_mv |
AT zsigmondpapp solarlightinduceddecolorizationofsafraninousingunmodifiedandgoldmodifiedsemiconductoroxides |
_version_ |
1724525740050874368 |