Optimization of lead (II) adsorption of EDTA-functionalized magnetic graphene oxide using response surface methodology
| dc.contributor.advisor | Escayo, Sherwin L. | |
| dc.contributor.author | Angeles, Christine Debbie Shanne V. | |
| dc.contributor.chair | Emmqal, Steve P. | |
| dc.contributor.committeemember | Morata, Ann Selma C. | |
| dc.contributor.committeemember | Martizano, Jay O. | |
| dc.date.accessioned | 2025-03-12T01:29:21Z | |
| dc.date.issued | 2017-06 | |
| dc.description.abstract | Chronic intake of lead-contaminated water, even at low concentrations, can cause damage to the digestive, reproductive, and nervous systems. To effectively remove lead in water, solid phase extraction or adsorption is being used. In this study, EDTA-functionalized magnetic graphene oxide (EmGO) adsorbent was fabricated using a stepwise modification of graphene oxide (GO). It was characterized using SEM, FTIR, and XRD. EmGO was shown to have improved adsorption capacity towards Pb(II) in natural water. Also, the magnetic property of the adsorbent allowed an easier and more convenient mean of retrieval. The generated response surface model from Box- Behnken design (BBD) approximated the optimum condition for maximum removal efficiency of EmGO. Based on the results, the model had a 0.9113 (±0.0001) overall desirability, optimum values for pH, adsorbent dosage, and contact time were 5.99 (±0.01), 12.2135 (±0.0001), and 48.39 (±0.01), respectively. The highest percent removal efficiency of EmGO in the experiment was determined to be 73.41 (±0.01)%. | |
| dc.format.extent | xi, 59 p. | |
| dc.identifier.citation | Angeles, C. D. S. (2017). Optimization of lead (II) adsorption of EDTA-functionalized magnetic graphene oxide using response surface methodology [Undergraduate theses, University of the Philippines Visayas]. UPV Institutional Repository. https://repository.upv.edu.ph | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14583/113 | |
| dc.publisher | Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas | |
| dc.subject | Graphene oxide (GO) | |
| dc.subject | Fe3O4 | |
| dc.subject | EDTA | |
| dc.subject | Absorption | |
| dc.subject | Water treatment | |
| dc.subject | Heavy Metals | |
| dc.subject | Lead | |
| dc.subject | RSM | |
| dc.subject.lcc | LG 993.5 2017 C4 A64 | |
| dc.title | Optimization of lead (II) adsorption of EDTA-functionalized magnetic graphene oxide using response surface methodology | |
| dc.type | Thesis | |
| thesis.degree.department | College of Arts and Sciences | |
| thesis.degree.grantor | University of the Philippines Visayas | |
| thesis.degree.level | Undergraduate | |
| thesis.degree.name | Bachelor of Science in Chemistry |