Alginate–Halloysite Nanocomposite Aerogel: Preparation, Structure, and Oil/Water Separation Applications
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Preparation of Sodium Alginate Aerogel (SA)
2.3. Preparation of Sodium Alginate–Halloysite Nanocomposite Aerogel (SAHA)
2.4. Characterization
2.4.1. Porosity Measurement
2.4.2. Oil–Water Separation Test
3. Results and Discussion
3.1. Determination of Morphological Properties
3.1.1. X-ray Diffraction Study
3.1.2. Transmission Electron Microscopy (TEM) Analysis
3.1.3. Scanning Electron Microscopy (SEM)
3.1.4. Atomic Force Microscopy Analysis (AFM)
3.1.5. BET Surface Analysis
3.2. Chemical Composition Analysis
3.2.1. Fourier Transform Infrared Spectroscopy
3.2.2. Energy Dispersive X-ray Spectrometry (EDX) Analysis
3.3. Thermal Analysis of the Aerogels
Thermogravimetric Analysis
3.4. Oil/Water Wettability by Contact Angle Analysis
3.5. Oil/Water Separation Experiment
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample | BET Surface Area (m2/g) | Desorption Average Pore Radius (BJH) (nm) | t-Plot Micropore Volume Cc/g |
---|---|---|---|
SA aerogel | 12.1 | 10.6 | 0.035 |
SAHA aerogel | 2.9 | 37.6 | 0.0115 |
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Bhagyaraj, S.; Krupa, I. Alginate–Halloysite Nanocomposite Aerogel: Preparation, Structure, and Oil/Water Separation Applications. Biomolecules 2020, 10, 1632. https://doi.org/10.3390/biom10121632
Bhagyaraj S, Krupa I. Alginate–Halloysite Nanocomposite Aerogel: Preparation, Structure, and Oil/Water Separation Applications. Biomolecules. 2020; 10(12):1632. https://doi.org/10.3390/biom10121632
Chicago/Turabian StyleBhagyaraj, Sneha, and Igor Krupa. 2020. "Alginate–Halloysite Nanocomposite Aerogel: Preparation, Structure, and Oil/Water Separation Applications" Biomolecules 10, no. 12: 1632. https://doi.org/10.3390/biom10121632