Journal
DALTON TRANSACTIONS
Volume 42, Issue 38, Pages 13948-13954Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3dt50845e
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Funding
- Natural Science Foundation Department of Education of Anhui Province, China [KJ2012A193]
- National Natural Science Foundation of China (NSFC) [20971001]
- NSFC-CAS Joint Fund for Research Based on Large-Scale Scientific Facilities [10979014]
- Program for New Century Excellent Talents in University, Ministry of Education, China [NCET-08-0617]
- National 211 Project of Anhui University
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This paper presents a novel strategy to prepare Cu-3(BTC)(2)@SiO2 core-shell nanoparticles in the size range of 200-400 nm using a new one-pot strategy under ultrasonic irradiation at room temperature. In this approach, the silica shell thickness could be finely tuned in the size range of 12-60 nm for various reaction times. Nanocomposite thin films were fabricated on the glass substrates by Sol-Gel spin coating using the products for 1.5 h, 2 h and 2.5 h, respectively, and heat treated using an infrared lamp heating system in air. The photocatalytic degradation of phenol in aqueous solution using Cu-2(BTC)(3)@SiO2 thin films was investigated under visible light irradiation at pH 4. After a 45 min reaction with phenol, the degradation rate was up to 93.1%. Moreover, the thin film photocatalysts could be reused 5 times without appreciable loss of photocatalytic activity for degradation of phenol. The present work clearly shows that the films as photocatalysts showed higher photocatalytic performance.
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