The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles
Silica microparticles were synthesized from sugarcane bagasse via a green synthetic technique. The prepared silica microparticles were used to remove lead and nickel ions from their separate solutions. Microscopic analysis shows that the synthesized silica particles are spherical with good monodispe...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-09-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844020317503 |
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| author | Ikhazuagbe Hilary Ifijen Anastasia B. Itua Muniratu Maliki Christie O. Ize-Iyamu Stanley O. Omorogbe Aireguamen I. Aigbodion Esther U. Ikhuoria |
| author_facet | Ikhazuagbe Hilary Ifijen Anastasia B. Itua Muniratu Maliki Christie O. Ize-Iyamu Stanley O. Omorogbe Aireguamen I. Aigbodion Esther U. Ikhuoria |
| author_sort | Ikhazuagbe Hilary Ifijen |
| collection | DOAJ |
| description | Silica microparticles were synthesized from sugarcane bagasse via a green synthetic technique. The prepared silica microparticles were used to remove lead and nickel ions from their separate solutions. Microscopic analysis shows that the synthesized silica particles are spherical with good monodispersed properties. The average particle diameter of the silica microparticles is estimated to be about 432 nm. Batch adsorption experiment was employed to examine the influence of adsorbent dosage, contact time, heavy metal ion concentration and pH on the adsorption efficiency of the synthesized silica microparticles in removing the studied lead (Pb2+) and nickel (Ni2+) ions from their respective solutions. An increase in adsorbent dosage, heavy metal ion concentration, contact time and pH led to an increase in the percentage removal of Pb2+ and Ni2+ metal ions from their individual solutions. The adsorption process of Pb2+ ion onto the synthesized silica microparticles followed the Langmuir adsorption isotherm (R2 = 0.961), while, the nickel ion (Ni2+) followed the Freundlich isotherm (R2 = 0.869). The adsorption process of the studied heavy metals (Pb2+ and Ni2+) in their separate solutions favours pseudo-second-order reaction model (R2, 0.978 and 0.999) over the pseudo-first-order reaction model. |
| first_indexed | 2024-12-12T13:46:27Z |
| format | Article |
| id | doaj.art-1533930f35f7464aa7cdd25b3c7bb3c0 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-12-12T13:46:27Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-1533930f35f7464aa7cdd25b3c7bb3c02022-12-22T00:22:40ZengElsevierHeliyon2405-84402020-09-0169e04907The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticlesIkhazuagbe Hilary Ifijen0Anastasia B. Itua1Muniratu Maliki2Christie O. Ize-Iyamu3Stanley O. Omorogbe4Aireguamen I. Aigbodion5Esther U. Ikhuoria6Department of Research Operation, Rubber Research Institute of Nigeria, P.M.B. 1049, Benin City, NigeriaDepartment of Chemistry, University of Benin, P.M.B. 1154, Benin City, NigeriaDepartment of Chemistry, Edo University, Iyamho, Edo State, NigeriaDepartment of Research Operation, Rubber Research Institute of Nigeria, P.M.B. 1049, Benin City, NigeriaDepartment of Research Operation, Rubber Research Institute of Nigeria, P.M.B. 1049, Benin City, NigeriaDepartment of Research Operation, Rubber Research Institute of Nigeria, P.M.B. 1049, Benin City, NigeriaDepartment of Chemistry, University of Benin, P.M.B. 1154, Benin City, Nigeria; Corresponding author.Silica microparticles were synthesized from sugarcane bagasse via a green synthetic technique. The prepared silica microparticles were used to remove lead and nickel ions from their separate solutions. Microscopic analysis shows that the synthesized silica particles are spherical with good monodispersed properties. The average particle diameter of the silica microparticles is estimated to be about 432 nm. Batch adsorption experiment was employed to examine the influence of adsorbent dosage, contact time, heavy metal ion concentration and pH on the adsorption efficiency of the synthesized silica microparticles in removing the studied lead (Pb2+) and nickel (Ni2+) ions from their respective solutions. An increase in adsorbent dosage, heavy metal ion concentration, contact time and pH led to an increase in the percentage removal of Pb2+ and Ni2+ metal ions from their individual solutions. The adsorption process of Pb2+ ion onto the synthesized silica microparticles followed the Langmuir adsorption isotherm (R2 = 0.961), while, the nickel ion (Ni2+) followed the Freundlich isotherm (R2 = 0.869). The adsorption process of the studied heavy metals (Pb2+ and Ni2+) in their separate solutions favours pseudo-second-order reaction model (R2, 0.978 and 0.999) over the pseudo-first-order reaction model.http://www.sciencedirect.com/science/article/pii/S2405844020317503Materials scienceMaterials chemistryNanotechnologySilica microparticlesAdsorptionHeavy metal ion |
| spellingShingle | Ikhazuagbe Hilary Ifijen Anastasia B. Itua Muniratu Maliki Christie O. Ize-Iyamu Stanley O. Omorogbe Aireguamen I. Aigbodion Esther U. Ikhuoria The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles Heliyon Materials science Materials chemistry Nanotechnology Silica microparticles Adsorption Heavy metal ion |
| title | The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles |
| title_full | The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles |
| title_fullStr | The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles |
| title_full_unstemmed | The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles |
| title_short | The removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles |
| title_sort | removal of nickel and lead ions from aqueous solutions using green synthesized silica microparticles |
| topic | Materials science Materials chemistry Nanotechnology Silica microparticles Adsorption Heavy metal ion |
| url | http://www.sciencedirect.com/science/article/pii/S2405844020317503 |
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