Abstract
The preparation of activated carbon from rice husk residue using H3PO4 as activation agent was studied. The samples were characterized by elemental analysis, N2 adsorption–desorption, scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), temperature programmed decomposition-mass spectra (TPD-MS), thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS). The role of H3PO4 in the activation process was discussed. A maximum surface area of 1016 m2 g−1 was obtained under the optimized conditions, that is, a base treated solid material to tướng H3PO4 mass ratio of 1 : 2, an activation temperature of 500 °C and an activation time of 1 h. H3PO4 might act as a catalyst which facilitates the release of CO2, an oxidant which reacts with carbon after dehydration, and a reagent which enters AC through C–O–P bonds.
Bạn đang xem: h3po4 ra co2
Article information
- DOI
- https://doi.org/10.1039/C5RA04634C
- Article type
- Paper
- Submitted
- 16 Mar 2015
- Accepted
- 31 Mar 2015
- First published
- 31 Mar 2015
RSC Adv., năm ngoái,5, 32626-32636
Xem thêm: nh3+ch3cooh
Author version available
Permissions
The role of H3PO4 in the preparation of activated carbon from NaOH-treated rice husk residue
Y. Li, X. Zhang, R. Yang, G. Li and C. Hu, RSC Adv., năm ngoái, 5, 32626 DOI: 10.1039/C5RA04634C
To request permission to tướng reproduce material from this article, please go to tướng the Copyright Clearance Center request page.
If you are an author contributing to tướng an RSC publication, you vì thế not need to tướng request permission provided correct acknowledgement is given.
If you are the author of this article, you vì thế not need to tướng request permission to tướng reproduce figures and diagrams provided correct acknowledgement is given. If you want to tướng reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to tướng the Copyright Clearance Center request page.
Read more about how to tướng correctly acknowledge RSC nội dung.
Xem thêm: p + hno3 loãng
Bình luận