Study on the Application of a Photocatalytic Titanium Dioxide Coating on Glass Beads for the Treatment of Perfluorooctane Sulfonic Acid
Perfluorooctanesulfonic (PFOS) acid is a persistent anthropogenic organic fluorinated compound ubiquitous in industrial applications and is resistant to conventional wastewater treatment methods. Human exposure to PFOS can cause adverse health effects. In this study, a low-content titanium dioxide (...
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2024/5516249 |
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| author | Dao Duy Nam Cao Thi Hong Hanh Nghiem Minh Huyen Dieu-Anh Van Ha Vinh Hung Vu Minh Trang Vu Quang Minh Nguyen Bich Ngoc Vu Thi Thu Ha Huynh Trung Hai |
| author_facet | Dao Duy Nam Cao Thi Hong Hanh Nghiem Minh Huyen Dieu-Anh Van Ha Vinh Hung Vu Minh Trang Vu Quang Minh Nguyen Bich Ngoc Vu Thi Thu Ha Huynh Trung Hai |
| author_sort | Dao Duy Nam |
| collection | DOAJ |
| description | Perfluorooctanesulfonic (PFOS) acid is a persistent anthropogenic organic fluorinated compound ubiquitous in industrial applications and is resistant to conventional wastewater treatment methods. Human exposure to PFOS can cause adverse health effects. In this study, a low-content titanium dioxide (TiO2) photocatalyst coated on glass beads was synthesized through a simple method and showed improved activity and durability. This material exhibited easy recovery and potential for large-scale applications. The efficacy of the TiO2 nanoparticle-deposited glass beads’ (TiO2@GBs) photocatalyst in treating PFOS contaminants in wastewater was explored, demonstrating its ability to promote photocatalytic reactions to break down PFOS into shorter chain byproducts. The study employed the response surface method (RSM) using the Box–Behnken design (BBD) to optimize treatment conditions at a PFOS concentration of 0.1 mg/L. Investigated factors included pH (4–9), TiO2 dosage (0.11–0.53 g/L), and irradiation time (4–8 h). Design-Expert 12 software was used to plan and optimize the experiments. Fifteen experiments were conducted, and triplicate runs occurred at the center points of the experimental plan. ANOVA and Fisher’s test yielded an F value of 73.88 (p<0.0001) which demonstrated the model’s statistical significance with over 99% confidence regression prediction. The optimized treatment conditions that achieved 100% degradation of PFOS included a pH of 4.55, TiO2 dosage of 0.396 mg/L, and irradiation time of 6.59 hours. After the photocatalytic treatment, PFOS was transformed into intermediate products such as PFPeA, PFHpA, L-PFBS, and L-PFHxS. |
| format | Article |
| id | doaj-art-2c70cf855cc7482cb3ed3333c98fc6cd |
| institution | Kabale University |
| issn | 2090-9071 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-2c70cf855cc7482cb3ed3333c98fc6cd2025-02-03T00:20:43ZengWileyJournal of Chemistry2090-90712024-01-01202410.1155/2024/5516249Study on the Application of a Photocatalytic Titanium Dioxide Coating on Glass Beads for the Treatment of Perfluorooctane Sulfonic AcidDao Duy Nam0Cao Thi Hong Hanh1Nghiem Minh Huyen2Dieu-Anh Van3Ha Vinh Hung4Vu Minh Trang5Vu Quang Minh6Nguyen Bich Ngoc7Vu Thi Thu Ha8Huynh Trung Hai9School of Chemistry and Life ScienceSchool of Chemistry and Life ScienceSchool of Chemistry and Life ScienceSchool of Chemistry and Life ScienceSchool of Chemistry and Life ScienceSchool of Chemistry and Life ScienceSchool of Chemistry and Life ScienceNational Key Laboratory for Petrochemical and Refinery TechnologiesNational Key Laboratory for Petrochemical and Refinery TechnologiesSchool of Material Science and EngineeringPerfluorooctanesulfonic (PFOS) acid is a persistent anthropogenic organic fluorinated compound ubiquitous in industrial applications and is resistant to conventional wastewater treatment methods. Human exposure to PFOS can cause adverse health effects. In this study, a low-content titanium dioxide (TiO2) photocatalyst coated on glass beads was synthesized through a simple method and showed improved activity and durability. This material exhibited easy recovery and potential for large-scale applications. The efficacy of the TiO2 nanoparticle-deposited glass beads’ (TiO2@GBs) photocatalyst in treating PFOS contaminants in wastewater was explored, demonstrating its ability to promote photocatalytic reactions to break down PFOS into shorter chain byproducts. The study employed the response surface method (RSM) using the Box–Behnken design (BBD) to optimize treatment conditions at a PFOS concentration of 0.1 mg/L. Investigated factors included pH (4–9), TiO2 dosage (0.11–0.53 g/L), and irradiation time (4–8 h). Design-Expert 12 software was used to plan and optimize the experiments. Fifteen experiments were conducted, and triplicate runs occurred at the center points of the experimental plan. ANOVA and Fisher’s test yielded an F value of 73.88 (p<0.0001) which demonstrated the model’s statistical significance with over 99% confidence regression prediction. The optimized treatment conditions that achieved 100% degradation of PFOS included a pH of 4.55, TiO2 dosage of 0.396 mg/L, and irradiation time of 6.59 hours. After the photocatalytic treatment, PFOS was transformed into intermediate products such as PFPeA, PFHpA, L-PFBS, and L-PFHxS.http://dx.doi.org/10.1155/2024/5516249 |
| spellingShingle | Dao Duy Nam Cao Thi Hong Hanh Nghiem Minh Huyen Dieu-Anh Van Ha Vinh Hung Vu Minh Trang Vu Quang Minh Nguyen Bich Ngoc Vu Thi Thu Ha Huynh Trung Hai Study on the Application of a Photocatalytic Titanium Dioxide Coating on Glass Beads for the Treatment of Perfluorooctane Sulfonic Acid Journal of Chemistry |
| title | Study on the Application of a Photocatalytic Titanium Dioxide Coating on Glass Beads for the Treatment of Perfluorooctane Sulfonic Acid |
| title_full | Study on the Application of a Photocatalytic Titanium Dioxide Coating on Glass Beads for the Treatment of Perfluorooctane Sulfonic Acid |
| title_fullStr | Study on the Application of a Photocatalytic Titanium Dioxide Coating on Glass Beads for the Treatment of Perfluorooctane Sulfonic Acid |
| title_full_unstemmed | Study on the Application of a Photocatalytic Titanium Dioxide Coating on Glass Beads for the Treatment of Perfluorooctane Sulfonic Acid |
| title_short | Study on the Application of a Photocatalytic Titanium Dioxide Coating on Glass Beads for the Treatment of Perfluorooctane Sulfonic Acid |
| title_sort | study on the application of a photocatalytic titanium dioxide coating on glass beads for the treatment of perfluorooctane sulfonic acid |
| url | http://dx.doi.org/10.1155/2024/5516249 |
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