Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.

Christopher Uchechukwu Sonde; Stevens Azubuike Odoemelam

doi:doi:10.11648/j.ajpc.20120101.12

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Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.

Christopher Uchechukwu Sonde, Stevens Azubuike Odoemelam

Published in American Journal of Physical Chemistry (Volume 1, Issue 1)

Published: 30 December 2012

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Abstract

The sorption of Cu2+, Cd2+ and Pb2+ from aqueous solutions by unmodified (UBSH) and modified (MBSH) African breadfruit (Treculia africana) seed hull has been investigated. The amount of ions adsorbed by the hulls was dependent on the contact time range, 10 min – 120 min at optimum pH, 7.5 and temperature, 30 oC. Results revealed that the amount of metal ions adsorbed increased with time for both UBSH and MBSH, as well as a slight drop in the amount of Cd2+ adsorbed between contact time 60 min and 90 min for only UBSH. The rate of removal of the metal ions from their solutions was rapid, as appreciable amounts (96 % – 99 %) were adsorbed by the adsorbents at the least contact time (10 min) of the experiment. However, sorption capacity trend of the metal ions was Pb2+ > Cd2+ > Cu2+ for both UBSH and MBSH. Modification by thiolation of the adsorbent showed enhancement mainly in the sorption of Cu2+ and Cd2+ and a reduction for Pb2+ due to low affinity of Pb2+ for –SH groups. A comparison of kinetic models applied to the sorption process was evaluated for Pseudo-first order and Pseudo-second order models, with Pseudo-second order providing a better fit to the experimental data with high R2 values ranging 0.9999 to 1. McKay & Poot intraparticle diffusion model also pro-vided a good fit to the experimental data with more R2 values close to 1 than Weber & Morris model, thus suggesting the sorption process to be intraparticle diffusion controlled. Generally, the results from this study, indicates that a good adsor-bent can be obtained from both unmodified and thioglycollic acid-modified breadfruit seed hull.

Published in	American Journal of Physical Chemistry (Volume 1, Issue 1)
DOI	10.11648/j.ajpc.20120101.12
Page(s)	11-21
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), 2012. Published by Science Publishing Group

Keywords

African Breadfruit Seed Hull; Aqueous Solution; Intraparticle Diffusion; Kinetics; Metal Ions; Sorption; Thiolation

References

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Christopher Uchechukwu Sonde, Stevens Azubuike Odoemelam. (2012). Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.. American Journal of Physical Chemistry, 1(1), 11-21. https://doi.org/10.11648/j.ajpc.20120101.12

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ACS Style

Christopher Uchechukwu Sonde; Stevens Azubuike Odoemelam. Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.. Am. J. Phys. Chem. 2012, 1(1), 11-21. doi: 10.11648/j.ajpc.20120101.12

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AMA Style

Christopher Uchechukwu Sonde, Stevens Azubuike Odoemelam. Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.. Am J Phys Chem. 2012;1(1):11-21. doi: 10.11648/j.ajpc.20120101.12

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@article{10.11648/j.ajpc.20120101.12,
  author = {Christopher Uchechukwu Sonde and Stevens Azubuike Odoemelam},
  title = {Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.},
  journal = {American Journal of Physical Chemistry},
  volume = {1},
  number = {1},
  pages = {11-21},
  doi = {10.11648/j.ajpc.20120101.12},
  url = {https://doi.org/10.11648/j.ajpc.20120101.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpc.20120101.12},
  abstract = {The sorption of Cu2+, Cd2+ and Pb2+ from aqueous solutions by unmodified (UBSH) and modified (MBSH) African breadfruit (Treculia africana) seed hull has been investigated. The amount of ions adsorbed by the hulls was dependent on the contact time range, 10 min – 120 min at optimum pH, 7.5 and temperature, 30 oC. Results revealed that the amount of metal ions adsorbed increased with time for both UBSH and MBSH, as well as a slight drop in the amount of Cd2+ adsorbed between contact time 60 min and 90 min for only UBSH. The rate of removal of the metal ions from their solutions was rapid, as appreciable amounts (96 % – 99 %) were adsorbed by the adsorbents at the least contact time (10 min) of the experiment. However, sorption capacity trend of the metal ions was Pb2+ > Cd2+ > Cu2+ for both UBSH and MBSH. Modification  by thiolation of the adsorbent showed enhancement mainly in the  sorption of Cu2+  and Cd2+ and a reduction for Pb2+ due to low affinity of Pb2+ for –SH groups. A comparison of kinetic models applied to the sorption process was evaluated for Pseudo-first order and Pseudo-second order models, with Pseudo-second order providing a better fit to the experimental data with high R2 values ranging 0.9999 to 1. McKay & Poot intraparticle diffusion model also pro-vided a good fit to the experimental data with more R2 values close to 1 than Weber & Morris model, thus suggesting the sorption process to be intraparticle diffusion controlled. Generally, the results from this study, indicates that a good adsor-bent can be obtained from both unmodified and thioglycollic acid-modified breadfruit seed hull.},
 year = {2012}
}

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TY  - JOUR
T1  - Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.
AU  - Christopher Uchechukwu Sonde
AU  - Stevens Azubuike Odoemelam
Y1  - 2012/12/30
PY  - 2012
N1  - https://doi.org/10.11648/j.ajpc.20120101.12
DO  - 10.11648/j.ajpc.20120101.12
T2  - American Journal of Physical Chemistry
JF  - American Journal of Physical Chemistry
JO  - American Journal of Physical Chemistry
SP  - 11
EP  - 21
PB  - Science Publishing Group
SN  - 2327-2449
UR  - https://doi.org/10.11648/j.ajpc.20120101.12
AB  - The sorption of Cu2+, Cd2+ and Pb2+ from aqueous solutions by unmodified (UBSH) and modified (MBSH) African breadfruit (Treculia africana) seed hull has been investigated. The amount of ions adsorbed by the hulls was dependent on the contact time range, 10 min – 120 min at optimum pH, 7.5 and temperature, 30 oC. Results revealed that the amount of metal ions adsorbed increased with time for both UBSH and MBSH, as well as a slight drop in the amount of Cd2+ adsorbed between contact time 60 min and 90 min for only UBSH. The rate of removal of the metal ions from their solutions was rapid, as appreciable amounts (96 % – 99 %) were adsorbed by the adsorbents at the least contact time (10 min) of the experiment. However, sorption capacity trend of the metal ions was Pb2+ > Cd2+ > Cu2+ for both UBSH and MBSH. Modification  by thiolation of the adsorbent showed enhancement mainly in the  sorption of Cu2+  and Cd2+ and a reduction for Pb2+ due to low affinity of Pb2+ for –SH groups. A comparison of kinetic models applied to the sorption process was evaluated for Pseudo-first order and Pseudo-second order models, with Pseudo-second order providing a better fit to the experimental data with high R2 values ranging 0.9999 to 1. McKay & Poot intraparticle diffusion model also pro-vided a good fit to the experimental data with more R2 values close to 1 than Weber & Morris model, thus suggesting the sorption process to be intraparticle diffusion controlled. Generally, the results from this study, indicates that a good adsor-bent can be obtained from both unmodified and thioglycollic acid-modified breadfruit seed hull.
VL  - 1
IS  - 1
ER  -

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Author Information

Christopher Uchechukwu Sonde

Department of Chemistry, Michael Okpara University of Agriculture, Umudike, Umuahia, Abia State, Nigeria
Stevens Azubuike Odoemelam

Department of Chemistry, Michael Okpara University of Agriculture, Umudike, Umuahia, Abia State, Nigeria

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Christopher Uchechukwu Sonde, Stevens Azubuike Odoemelam. (2012). Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.. American Journal of Physical Chemistry, 1(1), 11-21. https://doi.org/10.11648/j.ajpc.20120101.12

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ACS Style

Christopher Uchechukwu Sonde; Stevens Azubuike Odoemelam. Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.. Am. J. Phys. Chem. 2012, 1(1), 11-21. doi: 10.11648/j.ajpc.20120101.12

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AMA Style

Christopher Uchechukwu Sonde, Stevens Azubuike Odoemelam. Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.. Am J Phys Chem. 2012;1(1):11-21. doi: 10.11648/j.ajpc.20120101.12

Copy | Download

@article{10.11648/j.ajpc.20120101.12,
  author = {Christopher Uchechukwu Sonde and Stevens Azubuike Odoemelam},
  title = {Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.},
  journal = {American Journal of Physical Chemistry},
  volume = {1},
  number = {1},
  pages = {11-21},
  doi = {10.11648/j.ajpc.20120101.12},
  url = {https://doi.org/10.11648/j.ajpc.20120101.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpc.20120101.12},
  abstract = {The sorption of Cu2+, Cd2+ and Pb2+ from aqueous solutions by unmodified (UBSH) and modified (MBSH) African breadfruit (Treculia africana) seed hull has been investigated. The amount of ions adsorbed by the hulls was dependent on the contact time range, 10 min – 120 min at optimum pH, 7.5 and temperature, 30 oC. Results revealed that the amount of metal ions adsorbed increased with time for both UBSH and MBSH, as well as a slight drop in the amount of Cd2+ adsorbed between contact time 60 min and 90 min for only UBSH. The rate of removal of the metal ions from their solutions was rapid, as appreciable amounts (96 % – 99 %) were adsorbed by the adsorbents at the least contact time (10 min) of the experiment. However, sorption capacity trend of the metal ions was Pb2+ > Cd2+ > Cu2+ for both UBSH and MBSH. Modification  by thiolation of the adsorbent showed enhancement mainly in the  sorption of Cu2+  and Cd2+ and a reduction for Pb2+ due to low affinity of Pb2+ for –SH groups. A comparison of kinetic models applied to the sorption process was evaluated for Pseudo-first order and Pseudo-second order models, with Pseudo-second order providing a better fit to the experimental data with high R2 values ranging 0.9999 to 1. McKay & Poot intraparticle diffusion model also pro-vided a good fit to the experimental data with more R2 values close to 1 than Weber & Morris model, thus suggesting the sorption process to be intraparticle diffusion controlled. Generally, the results from this study, indicates that a good adsor-bent can be obtained from both unmodified and thioglycollic acid-modified breadfruit seed hull.},
 year = {2012}
}

Copy | Download

TY  - JOUR
T1  - Sorption Studies on the Use of African Breadfruit (Treculia Africana) Seed Hull as Adsorbent for the Removal of Cu2+, Cd2+ and Pb2+ from Aqueous Solutions.
AU  - Christopher Uchechukwu Sonde
AU  - Stevens Azubuike Odoemelam
Y1  - 2012/12/30
PY  - 2012
N1  - https://doi.org/10.11648/j.ajpc.20120101.12
DO  - 10.11648/j.ajpc.20120101.12
T2  - American Journal of Physical Chemistry
JF  - American Journal of Physical Chemistry
JO  - American Journal of Physical Chemistry
SP  - 11
EP  - 21
PB  - Science Publishing Group
SN  - 2327-2449
UR  - https://doi.org/10.11648/j.ajpc.20120101.12
AB  - The sorption of Cu2+, Cd2+ and Pb2+ from aqueous solutions by unmodified (UBSH) and modified (MBSH) African breadfruit (Treculia africana) seed hull has been investigated. The amount of ions adsorbed by the hulls was dependent on the contact time range, 10 min – 120 min at optimum pH, 7.5 and temperature, 30 oC. Results revealed that the amount of metal ions adsorbed increased with time for both UBSH and MBSH, as well as a slight drop in the amount of Cd2+ adsorbed between contact time 60 min and 90 min for only UBSH. The rate of removal of the metal ions from their solutions was rapid, as appreciable amounts (96 % – 99 %) were adsorbed by the adsorbents at the least contact time (10 min) of the experiment. However, sorption capacity trend of the metal ions was Pb2+ > Cd2+ > Cu2+ for both UBSH and MBSH. Modification  by thiolation of the adsorbent showed enhancement mainly in the  sorption of Cu2+  and Cd2+ and a reduction for Pb2+ due to low affinity of Pb2+ for –SH groups. A comparison of kinetic models applied to the sorption process was evaluated for Pseudo-first order and Pseudo-second order models, with Pseudo-second order providing a better fit to the experimental data with high R2 values ranging 0.9999 to 1. McKay & Poot intraparticle diffusion model also pro-vided a good fit to the experimental data with more R2 values close to 1 than Weber & Morris model, thus suggesting the sorption process to be intraparticle diffusion controlled. Generally, the results from this study, indicates that a good adsor-bent can be obtained from both unmodified and thioglycollic acid-modified breadfruit seed hull.
VL  - 1
IS  - 1
ER  -

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