Optimization of visible-light photocatalytic degradation of acetaminophen by K-3[Fe(CN)(6)]-modified TiO2

doi:10.1016/j.jtice.2014.11.030

CNU IR > College of Sustainable Environment and Recreation > Dept. of Environmental Resources Management > Periodical Articles > Item 310902800/29614

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题名:	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
贡献者:	環境資源管理系
关键词:	Optimization Visible-lightphotocatalysis Respon sesurface methodology Acetaminophen Box-bhenken design
日期:	2015-04
上传时间:	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
显示于类别:	[Dept. of Environmental Resources Management] Periodical Articles

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