Sol-hydrothermal synthesis of inorganic-framework molecularly imprinted TiO2 nanoparticle and its enhanced photocatalytic activity for degradation of target pollutant

Fang Deng; Xiang Zhao; Xule Pei; Xubiao Luo; Wentao Li; Chak Tong AU

doi:10.1166/sam.2016.2695

Sol-hydrothermal synthesis of inorganic-framework molecularly imprinted TiO₂ nanoparticle and its enhanced photocatalytic activity for degradation of target pollutant

Fang Deng, Xiang Zhao, Xule Pei, Xubiao Luo^*, Wentao Li, Chak Tong AU

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

8 Citations (Scopus)

Abstract

Molecularly imprinted TiO₂ (MIP-TiO₂) nanoparticles with molecular recognition ability were prepared by solhydrothermal method. The hydrothermal temperature and time were optimized. MIP-TiO₂ shows higher adsorption capacity and selectivity than the non-imprinted TiO₂ (NIP-TiO₂). Kinetics studies show that the adsorption of target molecules on MIP-TiO₂ is fast. The good performance is attributed to (i) abundance of adsorption sites, (ii) good affinity of imprinted cavities towards target molecules, and (iii) geometric matching between target molecules and imprinted cavities. The photocatalytic activity of MIP/TiO₂ (0.0167 min^-1) is approximately four times that of NIP-TiO₂ (0.00429 min^-1). With a stable inorganic framework and active sites facilely released during regeneration, MIP-TiO₂ is highly reusable.

Original language	English
Pages (from-to)	1079-1085
Number of pages	7
Journal	Science of Advanced Materials
Volume	8
Issue number	5
DOIs	https://doi.org/10.1166/sam.2016.2695
Publication status	Published - 2016

Scopus Subject Areas

General Materials Science

User-Defined Keywords

Molecular recognition
Molecularly imprinted photocatalyst
Sol-Hydrothermal method
TiO nanoparticle

Access to Document

10.1166/sam.2016.2695

Cite this

@article{323acdb2d20d4d5b901b5ec3497b8b55,

title = "Sol-hydrothermal synthesis of inorganic-framework molecularly imprinted TiO2 nanoparticle and its enhanced photocatalytic activity for degradation of target pollutant",

abstract = "Molecularly imprinted TiO2 (MIP-TiO2) nanoparticles with molecular recognition ability were prepared by solhydrothermal method. The hydrothermal temperature and time were optimized. MIP-TiO2 shows higher adsorption capacity and selectivity than the non-imprinted TiO2 (NIP-TiO2). Kinetics studies show that the adsorption of target molecules on MIP-TiO2 is fast. The good performance is attributed to (i) abundance of adsorption sites, (ii) good affinity of imprinted cavities towards target molecules, and (iii) geometric matching between target molecules and imprinted cavities. The photocatalytic activity of MIP/TiO2 (0.0167 min-1) is approximately four times that of NIP-TiO2 (0.00429 min-1). With a stable inorganic framework and active sites facilely released during regeneration, MIP-TiO2 is highly reusable.",

keywords = "Molecular recognition, Molecularly imprinted photocatalyst, Sol-Hydrothermal method, TiO nanoparticle",

author = "Fang Deng and Xiang Zhao and Xule Pei and Xubiao Luo and Wentao Li and AU, {Chak Tong}",

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TY - JOUR

T1 - Sol-hydrothermal synthesis of inorganic-framework molecularly imprinted TiO2 nanoparticle and its enhanced photocatalytic activity for degradation of target pollutant

AU - Deng, Fang

AU - Zhao, Xiang

AU - Pei, Xule

AU - Luo, Xubiao

AU - Li, Wentao

AU - AU, Chak Tong

PY - 2016

Y1 - 2016

N2 - Molecularly imprinted TiO2 (MIP-TiO2) nanoparticles with molecular recognition ability were prepared by solhydrothermal method. The hydrothermal temperature and time were optimized. MIP-TiO2 shows higher adsorption capacity and selectivity than the non-imprinted TiO2 (NIP-TiO2). Kinetics studies show that the adsorption of target molecules on MIP-TiO2 is fast. The good performance is attributed to (i) abundance of adsorption sites, (ii) good affinity of imprinted cavities towards target molecules, and (iii) geometric matching between target molecules and imprinted cavities. The photocatalytic activity of MIP/TiO2 (0.0167 min-1) is approximately four times that of NIP-TiO2 (0.00429 min-1). With a stable inorganic framework and active sites facilely released during regeneration, MIP-TiO2 is highly reusable.

AB - Molecularly imprinted TiO2 (MIP-TiO2) nanoparticles with molecular recognition ability were prepared by solhydrothermal method. The hydrothermal temperature and time were optimized. MIP-TiO2 shows higher adsorption capacity and selectivity than the non-imprinted TiO2 (NIP-TiO2). Kinetics studies show that the adsorption of target molecules on MIP-TiO2 is fast. The good performance is attributed to (i) abundance of adsorption sites, (ii) good affinity of imprinted cavities towards target molecules, and (iii) geometric matching between target molecules and imprinted cavities. The photocatalytic activity of MIP/TiO2 (0.0167 min-1) is approximately four times that of NIP-TiO2 (0.00429 min-1). With a stable inorganic framework and active sites facilely released during regeneration, MIP-TiO2 is highly reusable.

KW - Molecular recognition

KW - Molecularly imprinted photocatalyst

KW - Sol-Hydrothermal method

KW - TiO nanoparticle

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DO - 10.1166/sam.2016.2695

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