The environmental persistence of thiamethoxam (THX), a commonly used neonicotinoid insecticide, raises concerns about its long-term effects. This study explored the photocatalytic degradation of THX using pure and perlite supported TiO2 photocatalysts in two distinct UV photoreactor configurations. Our investigation aimed to identify some optimal conditions for efficient THX removal while considering cost-effectiveness and sustainability for potential industrial applications. The results revealed that horizontal UV irradiation (System 1) significantly surpassed vertical irradiation (System 2) in both THX degradation rate and energy efficiency. This highlights the importance of photoreactor design for maximizing light utilization and mass transfer. While pure TiO2 exhibited superior performance in both systems compared to perlite-supported TiO2 (PST), the latter demonstrated an intriguing temperature dependence. PST achieved enhanced degradation at higher temperatures, suggesting its potential for industrial applications where waste heat is available. Furthermore, we discovered that low pH conditions substantially boosted THX degradation with PST, opening a promising avenue for optimizing industrial processes and minimizing chemical usage. This finding underscores the crucial role of operational parameters in tailoring photocatalytic performance. In conclusion, this study provided strong evidence for the effectiveness of TiO2 photocatalysis in degrading THX, a persistent organic pollutant. We emphasized the impact of catalyst support, photoreactor design, and operational parameters, such as temperature and pH, on treatment efficiency. Notably, the enhanced performance of PST at higher temperatures and its responsiveness to low pH conditions suggest its potential for cost-effective and sustainable THX treatment in industrial settings. These findings pave the way for further research and development of optimized photocatalytic systems for mitigating environmental contamination by THX and other persistent organic pollutants.
| Published in | American Journal of Chemical Engineering (Volume 12, Issue 3) |
| DOI | 10.11648/j.ajche.20241203.14 |
| Page(s) | 72-79 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Photocatalyst, Degradation, Perlite, Perlite Supported TiO2, TiO2, Thiamethoxam
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APA Style
Emmanuel, N., Dilek, D. (2024). Effect of Photoreactor Design on the Degradation of Thiamethoxam by Pure/Supported Titanium Dioxide. American Journal of Chemical Engineering, 12(3), 72-79. https://doi.org/10.11648/j.ajche.20241203.14
ACS Style
Emmanuel, N.; Dilek, D. Effect of Photoreactor Design on the Degradation of Thiamethoxam by Pure/Supported Titanium Dioxide. Am. J. Chem. Eng. 2024, 12(3), 72-79. doi: 10.11648/j.ajche.20241203.14
AMA Style
Emmanuel N, Dilek D. Effect of Photoreactor Design on the Degradation of Thiamethoxam by Pure/Supported Titanium Dioxide. Am J Chem Eng. 2024;12(3):72-79. doi: 10.11648/j.ajche.20241203.14
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Download@article{10.11648/j.ajche.20241203.14,
author = {Ngaha Emmanuel and Duranoğlu Dilek},
title = {Effect of Photoreactor Design on the Degradation of Thiamethoxam by Pure/Supported Titanium Dioxide
},
journal = {American Journal of Chemical Engineering},
volume = {12},
number = {3},
pages = {72-79},
doi = {10.11648/j.ajche.20241203.14},
url = {https://doi.org/10.11648/j.ajche.20241203.14},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajche.20241203.14},
abstract = {The environmental persistence of thiamethoxam (THX), a commonly used neonicotinoid insecticide, raises concerns about its long-term effects. This study explored the photocatalytic degradation of THX using pure and perlite supported TiO2 photocatalysts in two distinct UV photoreactor configurations. Our investigation aimed to identify some optimal conditions for efficient THX removal while considering cost-effectiveness and sustainability for potential industrial applications. The results revealed that horizontal UV irradiation (System 1) significantly surpassed vertical irradiation (System 2) in both THX degradation rate and energy efficiency. This highlights the importance of photoreactor design for maximizing light utilization and mass transfer. While pure TiO2 exhibited superior performance in both systems compared to perlite-supported TiO2 (PST), the latter demonstrated an intriguing temperature dependence. PST achieved enhanced degradation at higher temperatures, suggesting its potential for industrial applications where waste heat is available. Furthermore, we discovered that low pH conditions substantially boosted THX degradation with PST, opening a promising avenue for optimizing industrial processes and minimizing chemical usage. This finding underscores the crucial role of operational parameters in tailoring photocatalytic performance. In conclusion, this study provided strong evidence for the effectiveness of TiO2 photocatalysis in degrading THX, a persistent organic pollutant. We emphasized the impact of catalyst support, photoreactor design, and operational parameters, such as temperature and pH, on treatment efficiency. Notably, the enhanced performance of PST at higher temperatures and its responsiveness to low pH conditions suggest its potential for cost-effective and sustainable THX treatment in industrial settings. These findings pave the way for further research and development of optimized photocatalytic systems for mitigating environmental contamination by THX and other persistent organic pollutants.
},
year = {2024}
}
TY - JOUR T1 - Effect of Photoreactor Design on the Degradation of Thiamethoxam by Pure/Supported Titanium Dioxide AU - Ngaha Emmanuel AU - Duranoğlu Dilek Y1 - 2024/06/27 PY - 2024 N1 - https://doi.org/10.11648/j.ajche.20241203.14 DO - 10.11648/j.ajche.20241203.14 T2 - American Journal of Chemical Engineering JF - American Journal of Chemical Engineering JO - American Journal of Chemical Engineering SP - 72 EP - 79 PB - Science Publishing Group SN - 2330-8613 UR - https://doi.org/10.11648/j.ajche.20241203.14 AB - The environmental persistence of thiamethoxam (THX), a commonly used neonicotinoid insecticide, raises concerns about its long-term effects. This study explored the photocatalytic degradation of THX using pure and perlite supported TiO2 photocatalysts in two distinct UV photoreactor configurations. Our investigation aimed to identify some optimal conditions for efficient THX removal while considering cost-effectiveness and sustainability for potential industrial applications. The results revealed that horizontal UV irradiation (System 1) significantly surpassed vertical irradiation (System 2) in both THX degradation rate and energy efficiency. This highlights the importance of photoreactor design for maximizing light utilization and mass transfer. While pure TiO2 exhibited superior performance in both systems compared to perlite-supported TiO2 (PST), the latter demonstrated an intriguing temperature dependence. PST achieved enhanced degradation at higher temperatures, suggesting its potential for industrial applications where waste heat is available. Furthermore, we discovered that low pH conditions substantially boosted THX degradation with PST, opening a promising avenue for optimizing industrial processes and minimizing chemical usage. This finding underscores the crucial role of operational parameters in tailoring photocatalytic performance. In conclusion, this study provided strong evidence for the effectiveness of TiO2 photocatalysis in degrading THX, a persistent organic pollutant. We emphasized the impact of catalyst support, photoreactor design, and operational parameters, such as temperature and pH, on treatment efficiency. Notably, the enhanced performance of PST at higher temperatures and its responsiveness to low pH conditions suggest its potential for cost-effective and sustainable THX treatment in industrial settings. These findings pave the way for further research and development of optimized photocatalytic systems for mitigating environmental contamination by THX and other persistent organic pollutants. VL - 12 IS - 3 ER -
Chemical Engineering Department, Yildiz Technical University, Istanbul, Turkey; University Institute of Technology Fotso Victor, University of Dschang, Bandjoun, Cameroon; Equatorial Foundation for Energy, Water and Environmental Research (EFEWER), Yaoundé, Cameroon
