The biosorption potential of modified bottle gourd shell for phosphate: Equilibrium, kinetic and thermodynamic studies
In order to preserve the environment and prevent the occurrence of eutrophication, a new quaternary ammonium biosorbent based on the bottle gourd (Lagenaria vulgaris) shell (QALVS) was prepared and characterized in the present study. The results of FTIR and elemental analyses confirmed the successfu...
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doaj-209c7396a7d34c55b8fc851ed7467dc82020-11-25T00:40:30ZengAssociation of the Chemical Engineers of SerbiaChemical Industry and Chemical Engineering Quarterly1451-93722217-74342018-01-0124431933210.2298/CICEQ171019006M1451-93721800006MThe biosorption potential of modified bottle gourd shell for phosphate: Equilibrium, kinetic and thermodynamic studiesMarković-Nikolić Dragana Z.0Bojić Aleksandar Lj.1Bojić Danijela V.2Cakić Milorad D.3Cvetković Dragan J.4Nikolić Goran S.5High Technologically Artistic Professional School, LeskovacFaculty of Science and Mathematics, Department of Chemistry, NišFaculty of Science and Mathematics, Department of Chemistry, NišFaculty of Technology, LeskovacFaculty of Technology, LeskovacFaculty of Technology, LeskovacIn order to preserve the environment and prevent the occurrence of eutrophication, a new quaternary ammonium biosorbent based on the bottle gourd (Lagenaria vulgaris) shell (QALVS) was prepared and characterized in the present study. The results of FTIR and elemental analyses confirmed the successful modification of the lignocellulosic biomass and showed that 15.68 mg N g-1 was incorporated as cationic –N+R3 group. The biosorbent was tested to remove phosphate from aqueous solution in batch mode. Kinetic studies indicated that the biosorption of phosphate onto QALVS can be fitted by a non-linear pseudo nth-order model (n ≈ 1) very well. The Freundlich model provided the best description of the biosorption process. The maximum phosphate biosorption capacity was 16.69 mg P g-1 for QALVS at 20°C and pH 6. Thermodynamic parameters indicate that the biosorption of phosphate by QALVS is exothermic. The anion exchange mechanism was the dominant process, in addition to physisorption. Coexisting ions exhibited a distinct effect on phosphate biosorption with the order of NO3 - > SO4 2- > Cl-. The QALVS biosorbent could be repeatedly used in phosphate biosorption with slight losses in initial biosorption capacitieshttp://www.doiserbia.nb.rs/img/doi/1451-9372/2018/1451-93721800006M.pdfLagenaria vulgarisphosphatebiosorptionkineticequilibriumthermodynamic |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Marković-Nikolić Dragana Z. Bojić Aleksandar Lj. Bojić Danijela V. Cakić Milorad D. Cvetković Dragan J. Nikolić Goran S. |
spellingShingle |
Marković-Nikolić Dragana Z. Bojić Aleksandar Lj. Bojić Danijela V. Cakić Milorad D. Cvetković Dragan J. Nikolić Goran S. The biosorption potential of modified bottle gourd shell for phosphate: Equilibrium, kinetic and thermodynamic studies Chemical Industry and Chemical Engineering Quarterly Lagenaria vulgaris phosphate biosorption kinetic equilibrium thermodynamic |
author_facet |
Marković-Nikolić Dragana Z. Bojić Aleksandar Lj. Bojić Danijela V. Cakić Milorad D. Cvetković Dragan J. Nikolić Goran S. |
author_sort |
Marković-Nikolić Dragana Z. |
title |
The biosorption potential of modified bottle gourd shell for phosphate: Equilibrium, kinetic and thermodynamic studies |
title_short |
The biosorption potential of modified bottle gourd shell for phosphate: Equilibrium, kinetic and thermodynamic studies |
title_full |
The biosorption potential of modified bottle gourd shell for phosphate: Equilibrium, kinetic and thermodynamic studies |
title_fullStr |
The biosorption potential of modified bottle gourd shell for phosphate: Equilibrium, kinetic and thermodynamic studies |
title_full_unstemmed |
The biosorption potential of modified bottle gourd shell for phosphate: Equilibrium, kinetic and thermodynamic studies |
title_sort |
biosorption potential of modified bottle gourd shell for phosphate: equilibrium, kinetic and thermodynamic studies |
publisher |
Association of the Chemical Engineers of Serbia |
series |
Chemical Industry and Chemical Engineering Quarterly |
issn |
1451-9372 2217-7434 |
publishDate |
2018-01-01 |
description |
In order to preserve the environment and prevent the occurrence of eutrophication, a new quaternary ammonium biosorbent based on the bottle gourd (Lagenaria vulgaris) shell (QALVS) was prepared and characterized in the present study. The results of FTIR and elemental analyses confirmed the successful modification of the lignocellulosic biomass and showed that 15.68 mg N g-1 was incorporated as cationic –N+R3 group. The biosorbent was tested to remove phosphate from aqueous solution in batch mode. Kinetic studies indicated that the biosorption of phosphate onto QALVS can be fitted by a non-linear pseudo nth-order model (n ≈ 1) very well. The Freundlich model provided the best description of the biosorption process. The maximum phosphate biosorption capacity was 16.69 mg P g-1 for QALVS at 20°C and pH 6. Thermodynamic parameters indicate that the biosorption of phosphate by QALVS is exothermic. The anion exchange mechanism was the dominant process, in addition to physisorption. Coexisting ions exhibited a distinct effect on phosphate biosorption with the order of NO3 - > SO4 2- > Cl-. The QALVS biosorbent could be repeatedly used in phosphate biosorption with slight losses in initial biosorption capacities |
topic |
Lagenaria vulgaris phosphate biosorption kinetic equilibrium thermodynamic |
url |
http://www.doiserbia.nb.rs/img/doi/1451-9372/2018/1451-93721800006M.pdf |
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