Sunlight-driven photocatalytic degradation of non-steroidal anti-inflammatory drug based on TiO2 quantum dots.
J Colloid Interface Sci
; 459: 257-263, 2015 Dec 01.
Article
em En
| MEDLINE
| ID: mdl-26301837
ABSTRACT
This paper reports the facile synthesis, characterization and solar-light driven photocatalytic degradation of TiO2 quantum dots (QDs). The TiO2 QDs were synthesized by a facile ultrasonic-assisted hydrothermal process and characterized in terms of their structural, morphological, optical and photocatalytic properties. The detailed studies confirmed that the prepared QDs are well-crystalline, grown in high density and exhibiting good optical properties. Further, the prepared QDs were efficiently used as effective photocatalyst for the sun-light driven photocatalytic degradation of ketorolac tromethamine, a well-known non-steroidal anti-inflammatory drug (NSAID). To optimize the photocatalytic degradation conditions, various dose-dependent, pH-dependent, and initial drug-concentration dependent experiments were performed. The detailed solar-light driven photocatalytic experiments revealed that â¼99% photodegradation of ketorolac tromethamine drug solution (10 mg L(-1)) was observed with optimized amount of TiO2 QDs and pH (0.5 g L(-1) and 4.4, respectively) under solar-light irradiations. The observed results demonstrate that simply synthesized TiO2 QDs can efficiently be used for the solar-light driven photocatalytic degradation of harmful drugs and chemicals.
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MEDLINE
Assunto principal:
Luz Solar
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Titânio
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Cetorolaco de Trometamina
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Pontos Quânticos
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Processos Fotoquímicos
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article