PMID- 23618322
OWN - NLM
STAT- MEDLINE
DCOM- 20131119
LR  - 20131121
IS  - 1095-7103 (Electronic)
IS  - 0021-9797 (Linking)
VI  - 401
DP  - 2013 Jul 1
TI  - Photocatalytic performance of novel samarium-doped spherical-like ZnO 
      hierarchical nanostructures under visible light irradiation for 
      2,4-dichlorophenol degradation.
PG  - 40-9
LID - S0021-9797(13)00301-9 [pii]
LID - 10.1016/j.jcis.2013.03.043 [doi]
AB  - A novel samarium-doped spherical-like ZnO hierarchical nanostructure (Sm/ZnO) was 
      synthesized via a facile and surfactant-free chemical solution route. The 
      as-synthesized products were characterized by X-ray diffraction, 
      Brunauer-Emmett-Teller surface area analysis, field emission scanning electron 
      microscopy together with an energy dispersion X-ray spectrum analysis, 
      transmission electron microscopy, UV-visible diffuse reflectance spectroscopy, 
      and photoluminescence spectroscopy. The results revealed that Sm ion was 
      successfully doped into ZnO. It was also observed that the Sm doping increased 
      the visible light absorption ability of Sm/ZnO and a red shift for Sm/ZnO 
      appeared when compared to pure ZnO. The photocatalytic studies revealed that the 
      Sm/ZnO exhibited excellent photocatalytic degradation of 2,4-dichlorophenol 
      (2,4-DCP) compared with the pure ZnO and commercial TiO2 under visible light 
      irradiation. The photocatalytic enhancement of Sm/ZnO products was attributed to 
      their high charge separation efficiency and .OH generation ability as evidenced 
      by the photoluminescence spectra. The photocatalytic investigation also showed 
      that various parameters exerted their individual influence on the degradation 
      rate of 2,4-DCP. By using a certain of radical scavengers, .OH was determined to 
      play a pivotal role for the 2,4-DCP degradation. Moreover, the Sm/ZnO could be 
      easily separated and reused, indicating great potential for practical 
      applications in environmental cleanup.
CI  - Copyright (c) 2013 Elsevier Inc. All rights reserved.
FAU - Sin, Jin-Chung
AU  - Sin JC
AD  - School of Chemical Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, 
      Pulau Pinang, Malaysia.
FAU - Lam, Sze-Mun
AU  - Lam SM
FAU - Lee, Keat-Teong
AU  - Lee KT
FAU - Mohamed, Abdul Rahman
AU  - Mohamed AR
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130406
PL  - United States
TA  - J Colloid Interface Sci
JT  - Journal of colloid and interface science
JID - 0043125
RN  - 0 (Chlorophenols)
RN  - 42OD65L39F (Samarium)
RN  - R669TG1950 (2,4-dichlorophenol)
RN  - SOI2LOH54Z (Zinc Oxide)
SB  - IM
MH  - Catalysis
MH  - Chlorophenols/*chemistry
MH  - *Light
MH  - Nanostructures/*chemistry
MH  - Particle Size
MH  - Photochemical Processes
MH  - Samarium/*chemistry
MH  - Surface Properties
MH  - Zinc Oxide/*chemistry
EDAT- 2013/04/27 06:00
MHDA- 2013/11/20 06:00
CRDT- 2013/04/27 06:00
PHST- 2013/01/04 00:00 [received]
PHST- 2013/03/25 00:00 [revised]
PHST- 2013/03/27 00:00 [accepted]
PHST- 2013/04/27 06:00 [entrez]
PHST- 2013/04/27 06:00 [pubmed]
PHST- 2013/11/20 06:00 [medline]
AID - S0021-9797(13)00301-9 [pii]
AID - 10.1016/j.jcis.2013.03.043 [doi]
PST - ppublish
SO  - J Colloid Interface Sci. 2013 Jul 1;401:40-9. doi: 10.1016/j.jcis.2013.03.043. 
      Epub 2013 Apr 6.