Pengaruh Bufer Asetat Terhadap Kemampuan Adsorpsi Ion Timbal(II) Menggunakan Ion Imprinted Polymer (IIP) Termodifikasi Ligan EDTA
Keywords:
Timbal, EDTA, IIP, Bufer AsetatAbstract
Timbal adalah salah unsur logam yang mempunyai tingkat toksisitas cukup tinggi dan jika terpapar dapat menganggu kesehatan manusia. Berbagai metode untuk removal ion timbal(II) mempunyai kelemahan kemampuan adsorpsi yang rendah, karena bekerja pada pH tertentu. Ion Imprinted Polymer (IIP) adalah adsorben yang sangat efektif dalam removal ion timbal(II). IIP pada penelitian ini telah berhasil disintesis menggunakan metode presipitasi dengan menggunakan material seperti etilendiamintetraasetat (EDTA) (ligan), asam metakrilat (MAA) (monomer), etilen glikol dimetakrilat (EGDMA) (crosslinker), etanol-asetonitril (2:1) (porogen). Tujuan dari penelitian ini untuk menentukan pH optimum bufer fosfat terhadap kemampuan adsorpsi ion timbal(II) pada IIP termodifikasi ligan EDTA. Metode ekstraksi ion timbal(II) dari kerangka polimer menggunakan 1 mol/L asam nitrat. Hasil pengulangan ekstraksi dan cucian dengan akuademin menunjukkan konsentrasi ion timbal(II) terendah pada pencucian ke-4. Hasil penelitian diperoleh nilai pH optimum bufer asetat untuk adsorpsi ion timbal(II) pada pH 5,6 dengan persentase adsorpsi sebesar 30,45%.
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References
Agency For Toxic Substances and Disease Registry (ATSDR). (2022). ATSDR’s Substance Priority List. https://www.atsdr.cdc.gov/spl/index.html
Aguilar, J. F., Islas, G., Rodríguez, J. A., Paez-Hernandez, M. E., Galán-Vidal, C. A., & Ibarra, I. S. (2022). Selective Pb(II)-Imprinted Polymer for Solid Phase Extraction in the Trace Determination of Lead in Infant Formula by Capillary Electrophoresis. Journal of the Mexican Chemical Society, 66(2), 221–236. https://doi.org/10.29356/jmcs.v66i2.1694
Arshad, S. (2022). Lead (Pb): Health Effects and Assailable Populations. American Journal of Biomedical Science & Research, 15(2), 255–257. https://doi.org/10.34297/ajbsr.2022.15.002100
Bulgariu, L., Asachi, G., & Bulgariu, D. (2013). Removal of toxic heavy metals from aqueous media by sorption on low-cost materials Chapter Removal of toxic heavy metals from aqueous media by sorption on low-cost materials.
Cao, M.-D., LI, J.-S., Du, J., & Zhang, L.-C. (2017). The Reaction of Lead with Nitric Acid and Its Influencing Factors. University Chemistry, 32(10), 47–51. https://doi.org/10.3866/PKU.DXHX201705011
Christian, G. D., Dasgupta, P. K., & Schug, K. A. (2013). Analytical Chemistry. John Wiley & Sons
Fathollahi, A., Khasteganan, N., Coupe, S. J., & Newman, A. P. (2021). A meta-analysis of metal biosorption by suspended bacteria from three phyla. Chemosphere, 268. https://doi.org/10.1016/j.chemosphere.2020.129290
Gatabi, J., Sarrafi, Y., Lakouraj, M. M., & Taghavi, M. (2020). Facile and efficient removal of Pb(II) from aqueous solution by chitosan-lead ion imprinted polymer network. Chemosphere, 240. https://doi.org/10.1016/j.chemosphere.2019.124772
Guo, B., Deng, F., Zhao, Y., Luo, X., Luo, S., & Au, C. (2014). Magnetic ion-imprinted and -SH functionalized polymer for selective removal of Pb(II) from aqueous samples. Applied Surface Science, 292, 438–446. https://doi.org/10.1016/j.apsusc.2013.11.156
Kartika Asni, N., & Monica Sianita, M. (2020). Pengaruh jumlah crosslinker terhadap persen ekstraksi pada sintesis molecularly imprinted polymer sebagai adsorben untuk kloramfenikol the effect of crosslinker amount to the percent extraction in molecularly imprinted polymer synthesis as an adsorben for chloramphenicol. UNESA Journal of Chemistry.
Khan, Z. I., Muhammad, F. G., Ahmad, K., Alrefaei, A. F., Ahmad, T., Ejaz, A., Nadeem, M., Shahzadi, M., Muqaddas, H., & Mehmood, N. (2023). Evaluation of potential ecological risk assessment of toxic metal (lead) in contaminated meadows in the vicinity of suburban city: soil vs forages vs livestock. Brazilian Journal of Biology, 83. https://doi.org/10.1590/1519-6984.272087
Sulcius, A. (2015). Reactions of Metals in Nitric Acid: Writing Equations and Calculating Electromotive Force of Redox Reaction. Journal of Chemical Education, 92(12), 1971–1972. https://doi.org/10.1021/acs.jchemed.5b00328
Wirawan, T., Supriyanto, G., & Soegianto, A. (2019). Preparation of a new Cd(II)-imprinted polymer and its application to preconcentration and determination of cd(ii) ion from aqueous solution by SPE-FAAS. Indonesian Journal of Chemistry, 19(1), 97–105. https://doi.org/10.22146/ijc.27703
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