TY - JOUR
T1 - Effective regeneration of an adsorbent for the removal of organic contaminants developed based on UV radiation and toxicity evaluation
AU - Lee, Soonjae
AU - Lee, Jaesang
AU - Song, Mi Kyung
AU - Ryu, Jae Chun
AU - An, Byungryul
AU - Lee, Chang Gu
AU - Park, Chanhyuk
AU - Lee, Sang Hyup
AU - Choi, Jae Woo
N1 - Funding Information:
This research was supported by a grant from the Korea Institute of Science and Technology (KIST) institutional program ( 2E25311 ).
Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/10/2
Y1 - 2015/10/2
N2 - Composites of powdered activated carbon and/or titanium dioxide were investigated as a photo-regenerable adsorbent for use in the removal of 2,4,6-trichlorophenol from aqueous solution. Seven types of adsorbents were prepared for organic contaminant adsorption tests. Lab-scale tests were conducted to investigate the removal efficiencies of 2,4,6-trichlorophenol and the potential for regenerating the adsorbents using UV irradiation. Among these adsorbents, the ultrasonic irradiated alginate bead-impregnated powdered activated carbon and titanium dioxide-dry type 1 (PTAB-D-Sonic 1) exhibited the greatest adsorption capacity for 2,4,6-trichlorophenol (12.38 mg g- 1); in addition, the removal efficiency was consistent approximately 11 mg g- 1, notwithstanding repetitive regeneration by UV irradiation. The characteristics of each adsorbent were confirmed using Brunauer-Emmett-Teller (BET), field-emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray (EDX) analysis. In addition, a cytotoxicity experiment was conducted on the developed material, and the results showed that all seven materials had low cytotoxic effects on human cells. This research provides promising results for the application of a photo-regenerable adsorbent, e.g., PTAB-D-Sonic 1, for the removal of various organic contaminants from sewage and wastewater.
AB - Composites of powdered activated carbon and/or titanium dioxide were investigated as a photo-regenerable adsorbent for use in the removal of 2,4,6-trichlorophenol from aqueous solution. Seven types of adsorbents were prepared for organic contaminant adsorption tests. Lab-scale tests were conducted to investigate the removal efficiencies of 2,4,6-trichlorophenol and the potential for regenerating the adsorbents using UV irradiation. Among these adsorbents, the ultrasonic irradiated alginate bead-impregnated powdered activated carbon and titanium dioxide-dry type 1 (PTAB-D-Sonic 1) exhibited the greatest adsorption capacity for 2,4,6-trichlorophenol (12.38 mg g- 1); in addition, the removal efficiency was consistent approximately 11 mg g- 1, notwithstanding repetitive regeneration by UV irradiation. The characteristics of each adsorbent were confirmed using Brunauer-Emmett-Teller (BET), field-emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray (EDX) analysis. In addition, a cytotoxicity experiment was conducted on the developed material, and the results showed that all seven materials had low cytotoxic effects on human cells. This research provides promising results for the application of a photo-regenerable adsorbent, e.g., PTAB-D-Sonic 1, for the removal of various organic contaminants from sewage and wastewater.
KW - 2 4 6-Trichlorophenol
KW - Photocatalyst
KW - Regeneration
KW - Remote oxidation
KW - Toxicity evaluation
UR - http://www.scopus.com/inward/record.url?scp=84940642370&partnerID=8YFLogxK
U2 - 10.1016/j.reactfunctpolym.2015.08.008
DO - 10.1016/j.reactfunctpolym.2015.08.008
M3 - Article
AN - SCOPUS:84940642370
SN - 1381-5148
VL - 95
SP - 62
EP - 70
JO - Reactive and Functional Polymers
JF - Reactive and Functional Polymers
ER -