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Synergistic Removal of Humic Acid in Water by Coupling Adsorption and Photocatalytic Degradation Using TiO2Coconut Shell Powder Composite
Joint Authors
Kim, Jong Kyu
Jang, Dae Gyu
Campos, Luiza Cintra
Jung, Yong Wook
Kim, Jong-Ho
Joo, Jin Chul
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-10-05
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The feasibility of applying nanoscale TiO2/coconut shell powder (TCNSP) composite to remove HA in aqueous solution was evaluated, and the optimization of the photocatalytic systems using newly developed TCNSP composite was performed.
The developed TCNSP composite has high specific surface area (i.e., 454 m2/g) and great porosity (i.e., 66.9%) with pore size of less than 5 μm.
High removal efficiencies (≥95%) of HA were observed due to the significant synergistic effects by coupling adsorption and photocatalytic reaction of TCNSP composite.
As the initial concentration of HA increased, the degradation rate (Kapp) decreased due to HA sorption saturation to the surface of TCNSP composite and the photon interception by HA molecules in aqueous solution.
Since the increased loading amount of TCNSP composite enhanced the number of active sites, Kapp values increased until the optimum loading amount of TCNSP composite.
As pH values increased, HA removal efficiency decreased due to increasing electrostatic repulsion between HA and TCNSP composite.
Based on the response surface methodology, higher HA removal efficiencies were obtained with acidic condition, longer reaction time, and appropriated loading amount of TCNSP.
Further pilot-scale study is in progress using TCNSP composite combined with UVC to remove HA from large amounts of surface water (i.e., 200 m3/d).
American Psychological Association (APA)
Kim, Jong Kyu& Jang, Dae Gyu& Campos, Luiza Cintra& Jung, Yong Wook& Kim, Jong-Ho& Joo, Jin Chul. 2016. Synergistic Removal of Humic Acid in Water by Coupling Adsorption and Photocatalytic Degradation Using TiO2Coconut Shell Powder Composite. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1109341
Modern Language Association (MLA)
Kim, Jong Kyu…[et al.]. Synergistic Removal of Humic Acid in Water by Coupling Adsorption and Photocatalytic Degradation Using TiO2Coconut Shell Powder Composite. Journal of Nanomaterials No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1109341
American Medical Association (AMA)
Kim, Jong Kyu& Jang, Dae Gyu& Campos, Luiza Cintra& Jung, Yong Wook& Kim, Jong-Ho& Joo, Jin Chul. Synergistic Removal of Humic Acid in Water by Coupling Adsorption and Photocatalytic Degradation Using TiO2Coconut Shell Powder Composite. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1109341
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109341