The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue
Abstract Poly(2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid) (p(AMPS)) anionic hydrogels with 1, 5 and 10 wt% TiO2 particles were prepared by a simultaneous free radical polymerization and crosslinking reaction. The hydrogel composites were tested as photo‐catalysts for the degradation of methylene...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-04-01
|
| Series: | SPE Polymers |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/pls2.10035 |
| _version_ | 1811206673120886784 |
|---|---|
| author | Betul Ari Sultan B. Sengel Nurettin Sahiner |
| author_facet | Betul Ari Sultan B. Sengel Nurettin Sahiner |
| author_sort | Betul Ari |
| collection | DOAJ |
| description | Abstract Poly(2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid) (p(AMPS)) anionic hydrogels with 1, 5 and 10 wt% TiO2 particles were prepared by a simultaneous free radical polymerization and crosslinking reaction. The hydrogel composites were tested as photo‐catalysts for the degradation of methylene blue (MB) in water. Since MB dye is positively charged, MB should be readily absorbed by the anionic p(AMPS) hydrogel and then degraded by the entrapped TiO2 nanoparticle photocatalysts within the p(AMPS) matrix. Photocatalytic degradation of MB was promoted using a UV lamp (300 W) to activate TiO2 particles and was monitored by UV–Vis spectrometer. Interestingly, the activation energy of 20.58 kJ.mol−1 was found to be one of the lowest reported in the literature. The reusability and regeneration efficiency studies of the composite catalyst showed that the p(AMPS)‐TiO2 composite catalyst possessed 90% activity even after five repetitive use and maintained above 85% activity even after the second regeneration. Using different organic scavengers such as ascorbic acid, dimethylsulfoxide and methanol, it was determined that the main reactive species in the photodegradation of MB dye are electrons and superoxide ions. p(AMPS)‐TiO2 composite hydrogel has potential to be used as a good photocatalyst in degradation of toxic dyes and some organic pollutants. |
| first_indexed | 2024-04-12T03:51:09Z |
| format | Article |
| id | doaj.art-d4bfb1c72b89446da579cf19bc61b6e2 |
| institution | Directory Open Access Journal |
| issn | 2690-3857 |
| language | English |
| last_indexed | 2024-04-12T03:51:09Z |
| publishDate | 2021-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | SPE Polymers |
| spelling | doaj.art-d4bfb1c72b89446da579cf19bc61b6e22022-12-22T03:48:58ZengWileySPE Polymers2690-38572021-04-01229710910.1002/pls2.10035The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blueBetul Ari0Sultan B. Sengel1Nurettin Sahiner2Faculty of Science and Arts, Chemistry Department, Terzioglu Campus Canakkale Onsekiz Mart University Canakkale TurkeyFaculty of Engineering and Architecture, Department of Biomedical Engineering Eskisehir Osmangazi University Eskisehir TurkeyFaculty of Science and Arts, Chemistry Department, Terzioglu Campus Canakkale Onsekiz Mart University Canakkale TurkeyAbstract Poly(2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid) (p(AMPS)) anionic hydrogels with 1, 5 and 10 wt% TiO2 particles were prepared by a simultaneous free radical polymerization and crosslinking reaction. The hydrogel composites were tested as photo‐catalysts for the degradation of methylene blue (MB) in water. Since MB dye is positively charged, MB should be readily absorbed by the anionic p(AMPS) hydrogel and then degraded by the entrapped TiO2 nanoparticle photocatalysts within the p(AMPS) matrix. Photocatalytic degradation of MB was promoted using a UV lamp (300 W) to activate TiO2 particles and was monitored by UV–Vis spectrometer. Interestingly, the activation energy of 20.58 kJ.mol−1 was found to be one of the lowest reported in the literature. The reusability and regeneration efficiency studies of the composite catalyst showed that the p(AMPS)‐TiO2 composite catalyst possessed 90% activity even after five repetitive use and maintained above 85% activity even after the second regeneration. Using different organic scavengers such as ascorbic acid, dimethylsulfoxide and methanol, it was determined that the main reactive species in the photodegradation of MB dye are electrons and superoxide ions. p(AMPS)‐TiO2 composite hydrogel has potential to be used as a good photocatalyst in degradation of toxic dyes and some organic pollutants.https://doi.org/10.1002/pls2.10035catalysiscompositeshydrogelmetal–organic catalysts/organometallic catalystsphotodegradation mechanismreusability/regeneration |
| spellingShingle | Betul Ari Sultan B. Sengel Nurettin Sahiner The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue SPE Polymers catalysis composites hydrogel metal–organic catalysts/organometallic catalysts photodegradation mechanism reusability/regeneration |
| title | The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue |
| title_full | The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue |
| title_fullStr | The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue |
| title_full_unstemmed | The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue |
| title_short | The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue |
| title_sort | use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue |
| topic | catalysis composites hydrogel metal–organic catalysts/organometallic catalysts photodegradation mechanism reusability/regeneration |
| url | https://doi.org/10.1002/pls2.10035 |
| work_keys_str_mv | AT betulari theuseoftitaniumdioxideparticlesembeddedinanionichydrogelcompositeforphotocatalyticdegradationofmethyleneblue AT sultanbsengel theuseoftitaniumdioxideparticlesembeddedinanionichydrogelcompositeforphotocatalyticdegradationofmethyleneblue AT nurettinsahiner theuseoftitaniumdioxideparticlesembeddedinanionichydrogelcompositeforphotocatalyticdegradationofmethyleneblue AT betulari useoftitaniumdioxideparticlesembeddedinanionichydrogelcompositeforphotocatalyticdegradationofmethyleneblue AT sultanbsengel useoftitaniumdioxideparticlesembeddedinanionichydrogelcompositeforphotocatalyticdegradationofmethyleneblue AT nurettinsahiner useoftitaniumdioxideparticlesembeddedinanionichydrogelcompositeforphotocatalyticdegradationofmethyleneblue |