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| 標題: | Optimization of visible-light photocatalytic degradation of acetaminophen by K-3[Fe(CN)(6)]-modified TiO2 |
| 作者: | Lin, Justin Chun-Te
de Luna, Mark Daniel G.
Gotostos, Mary Jane N.
Lu, Ming-Chun |
| 貢獻者: | 環境資源管理系 |
| 關鍵字: | Optimization
Visible-lightphotocatalysis
Respon sesurface methodology
Acetaminophen
Box-bhenken design |
| 日期: | 2015-04 |
| 上傳時間: | 2016-04-19 19:02:05 (UTC+8) |
| 出版者: | Elsevier Science Bv |
| 摘要: | Visible-light photocatalytic degradation of acetaminophen (ACT), one of the most detected pharmaceuticals in aqueous environment, by K-3[Fe(CN)(6)]-modified TiO2 was presented in this study. Mutlivariate analysis based on response surface methodology was employed to quantify the individual and interaction effects of three key process parameters, i.e. photocatalyst dosage (A), initial ACT concentration (B), and initial pH (C) at pre-determined ranges. Results revealed that among the process variables investigated, initial ACT concentration has the most significant effect, while interactions between photocatalyst dosage and initial ACT concentration.(AB) as well as with initial pH (AC) also played important roles. Optimized conditions are obtained at photocatalyst dosage of 0.1 g/L, initial ACT concentration of 0.1 mM, and initial pH of 6.94. The optimized conditions were verified experimentally at 91.06% ACT removal rate, which is within 95% confidence interval of the proposed model. In addition, characterizations of the K-3[Fe(CN)(6)]-modified TiO2 carried out by SEM-EDS, XRD and FTIR provide more structural information for the new visible-light active photocatalyst. (C) 2015 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved. |
| 關聯: | Journal of The Taiwan Institute of Chemical Engineers, v.49, pp.129-135 |
| 顯示於類別: | [環境資源管理系(所)] 期刊論文
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