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Adsorption Studies of Lead (II) Ions from a Synthetic Media using Jackfruit (Artocarpus heterophyllus L.) Rags: Kinetics, Equilibrium and Thermodynamic Studies

Ndung’u Samuel N.1 , Nthiga Esther W.2 , Wanjau Ruth N.3 , Ndiritu James4

Section:Research Paper, Product Type: Journal-Paper
Vol.8 , Issue.4 , pp.5-12, Aug-2021


Online published on Aug 31, 2021


Copyright © Ndung’u Samuel N., Nthiga Esther W., Wanjau Ruth N., Ndiritu James . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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IEEE Style Citation: Ndung’u Samuel N., Nthiga Esther W., Wanjau Ruth N., Ndiritu James, “Adsorption Studies of Lead (II) Ions from a Synthetic Media using Jackfruit (Artocarpus heterophyllus L.) Rags: Kinetics, Equilibrium and Thermodynamic Studies,” International Journal of Scientific Research in Chemical Sciences, Vol.8, Issue.4, pp.5-12, 2021.

MLA Style Citation: Ndung’u Samuel N., Nthiga Esther W., Wanjau Ruth N., Ndiritu James "Adsorption Studies of Lead (II) Ions from a Synthetic Media using Jackfruit (Artocarpus heterophyllus L.) Rags: Kinetics, Equilibrium and Thermodynamic Studies." International Journal of Scientific Research in Chemical Sciences 8.4 (2021): 5-12.

APA Style Citation: Ndung’u Samuel N., Nthiga Esther W., Wanjau Ruth N., Ndiritu James, (2021). Adsorption Studies of Lead (II) Ions from a Synthetic Media using Jackfruit (Artocarpus heterophyllus L.) Rags: Kinetics, Equilibrium and Thermodynamic Studies. International Journal of Scientific Research in Chemical Sciences, 8(4), 5-12.

BibTex Style Citation:
@article{N._2021,
author = {Ndung’u Samuel N., Nthiga Esther W., Wanjau Ruth N., Ndiritu James},
title = {Adsorption Studies of Lead (II) Ions from a Synthetic Media using Jackfruit (Artocarpus heterophyllus L.) Rags: Kinetics, Equilibrium and Thermodynamic Studies},
journal = {International Journal of Scientific Research in Chemical Sciences},
issue_date = {8 2021},
volume = {8},
Issue = {4},
month = {8},
year = {2021},
issn = {2347-2693},
pages = {5-12},
url = {https://www.isroset.org/journal/IJSRCS/full_paper_view.php?paper_id=2489},
publisher = {IJCSE, Indore, INDIA},
}

RIS Style Citation:
TY - JOUR
UR - https://www.isroset.org/journal/IJSRCS/full_paper_view.php?paper_id=2489
TI - Adsorption Studies of Lead (II) Ions from a Synthetic Media using Jackfruit (Artocarpus heterophyllus L.) Rags: Kinetics, Equilibrium and Thermodynamic Studies
T2 - International Journal of Scientific Research in Chemical Sciences
AU - Ndung’u Samuel N., Nthiga Esther W., Wanjau Ruth N., Ndiritu James
PY - 2021
DA - 2021/08/31
PB - IJCSE, Indore, INDIA
SP - 5-12
IS - 4
VL - 8
SN - 2347-2693
ER -

275 Views    309 Downloads    62 Downloads
  
  

Abstract :
Water is vital to humans, animals and the entire ecosystem. However, its quality is deteriorating every dawn due to increased industrial advancements in our contemporary society leading to careless discharge of both organic and inorganic pollutants to the environment. This is not limited to metal ions which are eventually disposed to water bodies. Efforts to their remediation has yielded insignificant results as the used decontamination conventional techniques are costly. The use of adsorption using locally available adsorbents from agricultural wastes have increased research interest. Jackfruit rags (JR), a waste of Jackfruit was utilized as an adsorbent in lead (II) ions de-contamination from water. Powdered adsorbent was characterized using FT-IR which showed the presence of hydroxyl (-OH) and carboxylate (-COOH), carbonyl (-C=O) and ether (-C-O-C-) as important adsorption sites for lead (II) ions adsorption. The influence of contact time, pH, adsorbent dose, temperature and initial lead (II) ions concentration was investigated by batch adsorption technique. The optimal pH, time, dosage, temperature and initial lead (II) concentration was found to be: 5, 30 minutes, 0.08 g, 25 oC, 30 mg L-1 respectively. Isotherm studies showed that Freundlich model best described the lead (II) ions adsorption with adsorption capacity of 4.6716 mg/g which described a physisorption process. Kinetic parameters suggested the pseudo-second-order adsorption models best described the adsorption process. Thermodynamic functions of , and showed that lead (II) ions adsorption onto JR adsorbent was spontaneous, exothermic, non-entropy driven and physisorption in nature. The findings of the study showed that Jackfruit rags can be applied as an alternative, cheap and eco-friendly adsorbent in heavy metal ions removal from drinking water both at household level and industrial level.

Key-Words / Index Term :
Heavy metals, Jackfruit rags, Adsorption, kinetics, isotherms, thermodynamics

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