Shape-Selective Adsorption of Substituted Aniline Pollutants from Wastewater
ZSM-5 zeolite was used to treat wastewater containing aniline, 2-nitroaniline (2-NA), 3-nitroaniline (3-NA) and 4-nitroaniline (4-NA). Each molecule was removed from aqueous solution by Type I Langmuir adsorption onto ZSM-5. The quantities adsorbed varied greatly due to their shape-selective adsorpt...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2013-05-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.31.5.459 |
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| author | Talib M. Albayati Aidan M. Doyle |
| author_facet | Talib M. Albayati Aidan M. Doyle |
| author_sort | Talib M. Albayati |
| collection | DOAJ |
| description | ZSM-5 zeolite was used to treat wastewater containing aniline, 2-nitroaniline (2-NA), 3-nitroaniline (3-NA) and 4-nitroaniline (4-NA). Each molecule was removed from aqueous solution by Type I Langmuir adsorption onto ZSM-5. The quantities adsorbed varied greatly due to their shape-selective adsorption within the pores of ZSM-5. Aniline and 4-NA had maximum adsorption amounts of 161 and 265 mg g −1 , respectively, while the maximum amounts of 3-NA and 2-NA were 94.3 and 37.2 mg g −1 , corresponding to reductions of 64% and 86%, respectively, relative to 4-NA. This outcome was caused by the increase in the effective diameter for adsorption when the nitro group was located at the 2- and 3- positions of the molecule. This significantly reduced their ability to enter into, and diffuse through, the pores of ZSM-5. These findings underpin the importance of choosing the correct substrate when using such materials for water purification. |
| format | Article |
| id | doaj-art-fbf37a4e03ea41d7ae17e5b9749d2fcb |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2013-05-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-fbf37a4e03ea41d7ae17e5b9749d2fcb2025-01-03T00:11:49ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382013-05-013110.1260/0263-6174.31.5.459Shape-Selective Adsorption of Substituted Aniline Pollutants from WastewaterTalib M. Albayati0Aidan M. Doyle1 Department of Chemical Engineering, University of Technology, 52 Alsinaa Street, PO Box 35010, Baghdad, Iraq Division of Chemistry and Environmental Science, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United KingdomZSM-5 zeolite was used to treat wastewater containing aniline, 2-nitroaniline (2-NA), 3-nitroaniline (3-NA) and 4-nitroaniline (4-NA). Each molecule was removed from aqueous solution by Type I Langmuir adsorption onto ZSM-5. The quantities adsorbed varied greatly due to their shape-selective adsorption within the pores of ZSM-5. Aniline and 4-NA had maximum adsorption amounts of 161 and 265 mg g −1 , respectively, while the maximum amounts of 3-NA and 2-NA were 94.3 and 37.2 mg g −1 , corresponding to reductions of 64% and 86%, respectively, relative to 4-NA. This outcome was caused by the increase in the effective diameter for adsorption when the nitro group was located at the 2- and 3- positions of the molecule. This significantly reduced their ability to enter into, and diffuse through, the pores of ZSM-5. These findings underpin the importance of choosing the correct substrate when using such materials for water purification.https://doi.org/10.1260/0263-6174.31.5.459 |
| spellingShingle | Talib M. Albayati Aidan M. Doyle Shape-Selective Adsorption of Substituted Aniline Pollutants from Wastewater Adsorption Science & Technology |
| title | Shape-Selective Adsorption of Substituted Aniline Pollutants from Wastewater |
| title_full | Shape-Selective Adsorption of Substituted Aniline Pollutants from Wastewater |
| title_fullStr | Shape-Selective Adsorption of Substituted Aniline Pollutants from Wastewater |
| title_full_unstemmed | Shape-Selective Adsorption of Substituted Aniline Pollutants from Wastewater |
| title_short | Shape-Selective Adsorption of Substituted Aniline Pollutants from Wastewater |
| title_sort | shape selective adsorption of substituted aniline pollutants from wastewater |
| url | https://doi.org/10.1260/0263-6174.31.5.459 |
| work_keys_str_mv | AT talibmalbayati shapeselectiveadsorptionofsubstitutedanilinepollutantsfromwastewater AT aidanmdoyle shapeselectiveadsorptionofsubstitutedanilinepollutantsfromwastewater |