Kaolinite clay has low cation exchange capacity and small surface area; it has rarely been used as adsorbent. As well as, green, low cost and efficient adsorbent is desired. Modification of kaolinite is necessary to improve its adsorption capacity. Jordanian kaolinite has been modified by humic acid (HA) through batch adsorption mode. Two types of HA were used; one was commercial (FHA) and the other was natural (KTD). The effect of HA concentration, pH and temperature of solution were considered. HA adsorption becomes higher at low concentration, decreases with increasing pH, and it increased with solution temperature. Modified Jordanian kaolinite clay was characterized by different techniques: FTIR, TGA, SEM connected to EDS and porosimetry analysis by Gas Adsorption Isotherm and Mercury Porosimetry. The modified kaolinite showed good and strong interaction with HA, enhancement in its surface and charge structure, and increasing in the average pore radius. Therefore, increases in its reactivity and adsorption sites especially towards heavy metal ions. Moreover, FHA– kaolinite clay showed better adsorption characteristics than KTD– kaolinite clay.
| Published in | Science Journal of Chemistry (Volume 6, Issue 1) |
| DOI | 10.11648/j.sjc.20180601.11 |
| Page(s) | 1-10 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2018. Published by Science Publishing Group |
Kaolinite, Humic Acid, Batch Adsorption, Adsorption Capacity
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APA Style
Khansaa Al-Essa, Fawwaz Khalili. (2018). Adsorption of Humic Acid onto Jordanian Kaolinite Clay: Effects of Humic Acid Concentration, pH, and Temperature. Science Journal of Chemistry, 6(1), 1-10. https://doi.org/10.11648/j.sjc.20180601.11
ACS Style
Khansaa Al-Essa; Fawwaz Khalili. Adsorption of Humic Acid onto Jordanian Kaolinite Clay: Effects of Humic Acid Concentration, pH, and Temperature. Sci. J. Chem. 2018, 6(1), 1-10. doi: 10.11648/j.sjc.20180601.11
AMA Style
Khansaa Al-Essa, Fawwaz Khalili. Adsorption of Humic Acid onto Jordanian Kaolinite Clay: Effects of Humic Acid Concentration, pH, and Temperature. Sci J Chem. 2018;6(1):1-10. doi: 10.11648/j.sjc.20180601.11
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Download@article{10.11648/j.sjc.20180601.11,
author = {Khansaa Al-Essa and Fawwaz Khalili},
title = {Adsorption of Humic Acid onto Jordanian Kaolinite Clay: Effects of Humic Acid Concentration, pH, and Temperature},
journal = {Science Journal of Chemistry},
volume = {6},
number = {1},
pages = {1-10},
doi = {10.11648/j.sjc.20180601.11},
url = {https://doi.org/10.11648/j.sjc.20180601.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjc.20180601.11},
abstract = {Kaolinite clay has low cation exchange capacity and small surface area; it has rarely been used as adsorbent. As well as, green, low cost and efficient adsorbent is desired. Modification of kaolinite is necessary to improve its adsorption capacity. Jordanian kaolinite has been modified by humic acid (HA) through batch adsorption mode. Two types of HA were used; one was commercial (FHA) and the other was natural (KTD). The effect of HA concentration, pH and temperature of solution were considered. HA adsorption becomes higher at low concentration, decreases with increasing pH, and it increased with solution temperature. Modified Jordanian kaolinite clay was characterized by different techniques: FTIR, TGA, SEM connected to EDS and porosimetry analysis by Gas Adsorption Isotherm and Mercury Porosimetry. The modified kaolinite showed good and strong interaction with HA, enhancement in its surface and charge structure, and increasing in the average pore radius. Therefore, increases in its reactivity and adsorption sites especially towards heavy metal ions. Moreover, FHA– kaolinite clay showed better adsorption characteristics than KTD– kaolinite clay.},
year = {2018}
}
TY - JOUR T1 - Adsorption of Humic Acid onto Jordanian Kaolinite Clay: Effects of Humic Acid Concentration, pH, and Temperature AU - Khansaa Al-Essa AU - Fawwaz Khalili Y1 - 2018/01/11 PY - 2018 N1 - https://doi.org/10.11648/j.sjc.20180601.11 DO - 10.11648/j.sjc.20180601.11 T2 - Science Journal of Chemistry JF - Science Journal of Chemistry JO - Science Journal of Chemistry SP - 1 EP - 10 PB - Science Publishing Group SN - 2330-099X UR - https://doi.org/10.11648/j.sjc.20180601.11 AB - Kaolinite clay has low cation exchange capacity and small surface area; it has rarely been used as adsorbent. As well as, green, low cost and efficient adsorbent is desired. Modification of kaolinite is necessary to improve its adsorption capacity. Jordanian kaolinite has been modified by humic acid (HA) through batch adsorption mode. Two types of HA were used; one was commercial (FHA) and the other was natural (KTD). The effect of HA concentration, pH and temperature of solution were considered. HA adsorption becomes higher at low concentration, decreases with increasing pH, and it increased with solution temperature. Modified Jordanian kaolinite clay was characterized by different techniques: FTIR, TGA, SEM connected to EDS and porosimetry analysis by Gas Adsorption Isotherm and Mercury Porosimetry. The modified kaolinite showed good and strong interaction with HA, enhancement in its surface and charge structure, and increasing in the average pore radius. Therefore, increases in its reactivity and adsorption sites especially towards heavy metal ions. Moreover, FHA– kaolinite clay showed better adsorption characteristics than KTD– kaolinite clay. VL - 6 IS - 1 ER -
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