PMID- 25980914
OWN - NLM
STAT- MEDLINE
DCOM- 20160210
LR  - 20150526
IS  - 1879-2448 (Electronic)
IS  - 0043-1354 (Linking)
VI  - 79
DP  - 2015 Aug 1
TI  - An overview on limitations of TiO2-based particles for photocatalytic degradation 
      of organic pollutants and the corresponding countermeasures.
PG  - 128-46
LID - S0043-1354(15)00275-4 [pii]
LID - 10.1016/j.watres.2015.04.038 [doi]
AB  - The pollutants classified as "persistent organic pollutants (POPs)", are being 
      subject to high concern among the scientific community due to their persistence 
      in the environment. TiO2-based photocatalytic process has shown a great potential 
      as a low-cost, environmentally friendly and sustainable treatment technology to 
      remove POPs in sewage to overcome the shortcomings of the conventional 
      technologies. However, this technology suffers from some main technical barriers 
      that impede its commercialization, i.e., the inefficient exploitation of visible 
      light, low adsorption capacity for hydrophobic contaminants, uniform distribution 
      in aqueous suspension and post-recovery of the TiO2 particles after water 
      treatment. To improve the photocatalytic efficiency of TiO2, many studies have 
      been carried out with the aim of eliminating the limitations mentioned above. 
      This review summarizes the recently developed countermeasures for improving the 
      performance of TiO2-based photocatalytic degradation of organic pollutants with 
      respect to the visible-light photocatalytic activity, adsorption capacity, 
      stability and separability. The performance of various TiO2-based photocatalytic 
      processes for POPs degradation and the underlying mechanisms were summarized and 
      discussed. The future research needs for TiO2-based technology are suggested 
      accordingly. This review will significantly improve our understanding of the 
      process of photocatalytic degradation of POPs by TiO2-based particles and provide 
      useful information to scientists and engineers who work in this field.
CI  - Copyright (c) 2015 Elsevier Ltd. All rights reserved.
FAU - Dong, Haoran
AU  - Dong H
AD  - College of Environmental Science and Engineering, Hunan University, Changsha, 
      Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution 
      Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China. 
      Electronic address: dongh@hnu.edu.cn.
FAU - Zeng, Guangming
AU  - Zeng G
AD  - College of Environmental Science and Engineering, Hunan University, Changsha, 
      Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution 
      Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China.
FAU - Tang, Lin
AU  - Tang L
AD  - College of Environmental Science and Engineering, Hunan University, Changsha, 
      Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution 
      Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China.
FAU - Fan, Changzheng
AU  - Fan C
AD  - College of Environmental Science and Engineering, Hunan University, Changsha, 
      Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution 
      Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China.
FAU - Zhang, Chang
AU  - Zhang C
AD  - College of Environmental Science and Engineering, Hunan University, Changsha, 
      Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution 
      Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China.
FAU - He, Xiaoxiao
AU  - He X
AD  - College of Environmental Science and Engineering, Hunan University, Changsha, 
      Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution 
      Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China.
FAU - He, Yan
AU  - He Y
AD  - College of Environmental Science and Engineering, Hunan University, Changsha, 
      Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution 
      Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Review
DEP - 20150507
PL  - England
TA  - Water Res
JT  - Water research
JID - 0105072
RN  - 0 (Organic Chemicals)
RN  - 0 (Water Pollutants, Chemical)
RN  - 15FIX9V2JP (titanium dioxide)
RN  - D1JT611TNE (Titanium)
SB  - IM
MH  - Adsorption
MH  - Catalysis
MH  - Light
MH  - Organic Chemicals/chemistry/radiation effects
MH  - Photochemical Processes
MH  - Titanium/*chemistry
MH  - Waste Disposal, Fluid/methods
MH  - Water Pollutants, Chemical/*chemistry/radiation effects
MH  - Water Purification/*methods
OTO - NOTNLM
OT  - Adsorption
OT  - Particle separation
OT  - Persistent organic pollutants
OT  - Photodegradation
OT  - Surface modification
EDAT- 2015/05/20 06:00
MHDA- 2016/02/11 06:00
CRDT- 2015/05/19 06:00
PHST- 2015/02/06 00:00 [received]
PHST- 2015/04/22 00:00 [revised]
PHST- 2015/04/24 00:00 [accepted]
PHST- 2015/05/19 06:00 [entrez]
PHST- 2015/05/20 06:00 [pubmed]
PHST- 2016/02/11 06:00 [medline]
AID - S0043-1354(15)00275-4 [pii]
AID - 10.1016/j.watres.2015.04.038 [doi]
PST - ppublish
SO  - Water Res. 2015 Aug 1;79:128-46. doi: 10.1016/j.watres.2015.04.038. Epub 2015 May 
      7.