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Adsorption Mechanisms of Organic Chemicals on Carbon Nanotubes
Abstract
Carbon nanotubes (CNTs) have drawn special research attention because of their unique properties and potential applications. This review summarizes the research progress of organic chemical adsorption on CNTs, and will provide useful information for CNT application and risk assessment. Adsorption heterogeneity and hysteresis are two widely recognized features of organic chemical-CNT interactions. However, because different mechanisms may act simultaneously, mainly hydrophobic interactions, pi-pi bonds, electrostatic interactions, and hydrogen bonds, the prediction of organic chemical adsorption on CNTs is not straightforward. The dominant adsorption mechanism is different for different types of organic chemicals (such as polar and nonpolar), thus different models may be needed to predict organic chemical-CNT interaction. Adsorption mechanisms will be better understood by investigating the effects of properties of both CNTs and organic chemicals along with environmental conditions. Another majorfactor affecting adsorption by CNTs is their suspendability, which also strongly affects their mobility, exposure, and risk in the environment. Therefore, organic chemical-CNT interactions as affected by CNT dispersion and suspending merit further experimental research. In addition, CNTs have potential applications in water treatment due to their adsorption characteristics. Thus column and pilot studies are needed to evaluate their performance and operational cost.
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Cited by
Applications of nanotechnology in water and wastewater treatment
Qu, X., Alvarez, P. J. J., & Li, Q. (2013) · Water Research · doi:10.1016/j.watres.2012.09.058 · Cited by 2,444
Adsorption of VOCs onto engineered carbon materials: A review
Zhang, X., Gao, B., Creamer, A. E., Cao, C., & Li, Y. (2017) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2017.05.013 · Cited by 1,479
Role of nanomaterials in water treatment applications: A review
Santhosh, C., Velmurugan, V., Jacob, G., Jeong, S. K., Grace, A. N., & Bhatnagar, A. (2016) · Chemical Engineering Journal · doi:10.1016/j.cej.2016.08.053 · Cited by 1,256
Adsorptive removal of antibiotics from water and wastewater: Progress and challenges
Ahmed, M. B., Zhou, J. L., Ngo, H. H., & Guo, W. (2015) · Science of The Total Environment · doi:10.1016/j.scitotenv.2015.05.130 · Cited by 1,207
Qu, X., Brame, J., Li, Q., & Alvarez, P. J. J. (2013) · Accounts of Chemical Research · doi:10.1021/ar300029v · Cited by 799
Metadata
- Authors
- Pan, B., & Xing, B.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-11-13
- Volume
- 42
- Issue
- 24
- Pages
- 9005-9013
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W1974745520
- Cited by
- 1,261
- References
- 0
- FWCI
- 44.39
- Type
- journal article
- Language
- en
- Open access
- closed
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