CaCr LDH materials were synthesized by the co-precipitation method, using Gastropod shell as a biogenic source of Ca2+. The mineralogical, surficial morphology and elemental composition analysis of the materials showed characteristics typical of hydrotalcite-like materials, composed of Ca, Cr, O, C and Cl. Batch equilibrium adsorption studies showed that phosphate sorption on the LDH reached equilibrium within 5 min with about 98% removal. The sorption of phosphate was well described by the Langmuir isotherm model. The monolayer adsorption capacity of the CaCr LDH for phosphate was 142.86 mg/g. Mechanistic studies of phosphate removal by the LDHs was elucidated via instrumental analysis, vis-a viz, SEM-EDX, XRD and FTIR. Results revealed that phosphate was removed via the combination of ion exchange and precipitation. It could be inferred that CaCr LDH synthesised using Gastropod shell as a biogenic source of Ca2+ is a suitable adsorbent for phosphate removal from aqua system.
Published in | American Journal of BioScience (Volume 5, Issue 2) |
DOI | 10.11648/j.ajbio.20170502.11 |
Page(s) | 13-24 |
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. |
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Copyright © The Author(s), 2017. Published by Science Publishing Group |
Phosphate, Layered Double Hydroxide, Characterisation, Gastropod Shell, Isotherms
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APA Style
Ruth Olubukola Ajoke Adelagun, Nurudeen Abiola Oladoja, Isaac Ayodele Ololade, Adeniyi Samson Adeyemo. (2017). Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms. American Journal of BioScience, 5(2), 13-24. https://doi.org/10.11648/j.ajbio.20170502.11
ACS Style
Ruth Olubukola Ajoke Adelagun; Nurudeen Abiola Oladoja; Isaac Ayodele Ololade; Adeniyi Samson Adeyemo. Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms. Am. J. BioScience 2017, 5(2), 13-24. doi: 10.11648/j.ajbio.20170502.11
AMA Style
Ruth Olubukola Ajoke Adelagun, Nurudeen Abiola Oladoja, Isaac Ayodele Ololade, Adeniyi Samson Adeyemo. Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms. Am J BioScience. 2017;5(2):13-24. doi: 10.11648/j.ajbio.20170502.11
@article{10.11648/j.ajbio.20170502.11, author = {Ruth Olubukola Ajoke Adelagun and Nurudeen Abiola Oladoja and Isaac Ayodele Ololade and Adeniyi Samson Adeyemo}, title = {Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms}, journal = {American Journal of BioScience}, volume = {5}, number = {2}, pages = {13-24}, doi = {10.11648/j.ajbio.20170502.11}, url = {https://doi.org/10.11648/j.ajbio.20170502.11}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajbio.20170502.11}, abstract = {CaCr LDH materials were synthesized by the co-precipitation method, using Gastropod shell as a biogenic source of Ca2+. The mineralogical, surficial morphology and elemental composition analysis of the materials showed characteristics typical of hydrotalcite-like materials, composed of Ca, Cr, O, C and Cl. Batch equilibrium adsorption studies showed that phosphate sorption on the LDH reached equilibrium within 5 min with about 98% removal. The sorption of phosphate was well described by the Langmuir isotherm model. The monolayer adsorption capacity of the CaCr LDH for phosphate was 142.86 mg/g. Mechanistic studies of phosphate removal by the LDHs was elucidated via instrumental analysis, vis-a viz, SEM-EDX, XRD and FTIR. Results revealed that phosphate was removed via the combination of ion exchange and precipitation. It could be inferred that CaCr LDH synthesised using Gastropod shell as a biogenic source of Ca2+ is a suitable adsorbent for phosphate removal from aqua system.}, year = {2017} }
TY - JOUR T1 - Evaluation of Layered Double Hydroxide Synthesised from a Green Biogenic Precursor for Phosphate Removal: Characterisations and Isotherms AU - Ruth Olubukola Ajoke Adelagun AU - Nurudeen Abiola Oladoja AU - Isaac Ayodele Ololade AU - Adeniyi Samson Adeyemo Y1 - 2017/03/22 PY - 2017 N1 - https://doi.org/10.11648/j.ajbio.20170502.11 DO - 10.11648/j.ajbio.20170502.11 T2 - American Journal of BioScience JF - American Journal of BioScience JO - American Journal of BioScience SP - 13 EP - 24 PB - Science Publishing Group SN - 2330-0167 UR - https://doi.org/10.11648/j.ajbio.20170502.11 AB - CaCr LDH materials were synthesized by the co-precipitation method, using Gastropod shell as a biogenic source of Ca2+. The mineralogical, surficial morphology and elemental composition analysis of the materials showed characteristics typical of hydrotalcite-like materials, composed of Ca, Cr, O, C and Cl. Batch equilibrium adsorption studies showed that phosphate sorption on the LDH reached equilibrium within 5 min with about 98% removal. The sorption of phosphate was well described by the Langmuir isotherm model. The monolayer adsorption capacity of the CaCr LDH for phosphate was 142.86 mg/g. Mechanistic studies of phosphate removal by the LDHs was elucidated via instrumental analysis, vis-a viz, SEM-EDX, XRD and FTIR. Results revealed that phosphate was removed via the combination of ion exchange and precipitation. It could be inferred that CaCr LDH synthesised using Gastropod shell as a biogenic source of Ca2+ is a suitable adsorbent for phosphate removal from aqua system. VL - 5 IS - 2 ER -