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Anatase TiO2 nanoparticles–carbon nanotubes composite: Optimization synthesis and the relationship of photocatalytic degradation activity of acyclovir in water

Paper ID Volume ID Publish Year Pages File Format Full-Text
39567 45827 2014 8 PDF Available
Title
Anatase TiO2 nanoparticles–carbon nanotubes composite: Optimization synthesis and the relationship of photocatalytic degradation activity of acyclovir in water
Abstract

•Synthesis of TiO2 nanoparticles–MWCNTs composites by multiple variable method.•Photocatalytic degradation efficiency was optimized for the acyclovir degradation.•Optimum synthesis parameters were predicted by center composite design method.•Hydrothermal temperature was found to be the most important synthesis parameter.

In this study, TiO2 nanoparticles–multi-walled carbon nanotubes (TNPs–MWCNTs) composite photocatalyst was prepared via a simple soft-template hydrothermal method and optimized based on the center composite design (CCD). Four synthesis parameters, including amount of Pluronic P123, MWCNTs, and tetrabutyl titanate (TBT) as well as hydrothermal temperature, were selected to investigate their effects on the photocatalytic activity of the resultant composites toward acyclovir in water. Results showed that the most important parameter to prepare TNPs–MWCNTs composite with high photocatalytic activity is hydrothermal temperature, followed by the amount of MWCNTs, while the amount of TBT and P123 played relatively less important roles in this work. Based on the theoretical and experimental results, the highest photocatalytic degradation efficiency of acyclovir was up to 98.6% using the TNPs–MWCNTs composite photocatalyst synthesized under the optimum parameters, 240 °C of hydrothermal temperature, 0.06 g of MWCNTs, 1.10 g of TBT, and 0.10 g of P123. All these results demonstrate that the CCD method can be efficiently applied in the optimization synthesis of composite photocatalysts with high performance for environmental remediation.

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Keywords
MWCNTs based composite photocatalyst; Optimization synthesis; Center composite design; Photocatalytic activity; Antiviral pharmaceuticals
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Anatase TiO2 nanoparticles–carbon nanotubes composite: Optimization synthesis and the relationship of photocatalytic degradation activity of acyclovir in water
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 485, 5 September 2014, Pages 188–195
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us