Removal of phthalate ester compound from PVC plastic samples using magnetic molecularly imprinted polymer on the surface of superparamagnetic Fe3O4 (Fe3O4@MIPs)

Zulfikar, Muhammad Ali; Utami, Asyifa Rizqi; Handayani, Nurrahmi; Wahyuningrum, Deana; Setiyanto, Henry; Azis, Muhammad Yudhistira

doi:10.1016/j.enmm.2022.100646

Cited by 6 publications

(10 citation statements)

References 47 publications

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“…Magnetite Fe 3 O 4 was prepared by the co-precipitation method, from a mixture of 0.01 mol FeCl 2 ·4H 2 O and 0.02 mol FeCl 3 ·6H 2 O dissolved in 100 mL water. The mixture was stirred vigorously and cleaned with nitrogen gas, then a solution of sodium hydroxide [ 8 , 56 ] or ammonia (NH 4 OH) [ 57 ] was added. After one hour, the magnet was isolated from the solvent using an external magnet and washed several times with water [ 8 , 56 ].…”

Section: Synthesis Of Mmipmentioning

confidence: 99%

“…The mixture was stirred vigorously and cleaned with nitrogen gas, then a solution of sodium hydroxide [ 8 , 56 ] or ammonia (NH 4 OH) [ 57 ] was added. After one hour, the magnet was isolated from the solvent using an external magnet and washed several times with water [ 8 , 56 ].…”

Section: Synthesis Of Mmipmentioning

confidence: 99%

“…Several studies involve the MMIP polymerisation process using Fe 3 O 4 as the magnetic core. In the study by Ali Zulfikar et al [ 56 ], a poly vinyl chloride (PVC) MMIP sample solution was successfully synthesised for the selective separation of di(2-ethylhexyl)phthalate (DEHP) using Fe 3 O 4 as the magnetic core. A magnetisation saturation (MS) value of 39.92 emu/g was produced using a vibrating sample magnetometer (VSM), indicating that the MMIP is superparamagnetic (SPM), and the resulting MMIP was better than the MNIP, with an imprinting factor (IF) value of 3.37, a maximum adsorption capacity value of 17.21 mg/g and a recovery percentage of around 91.03–99.68%.…”

Section: Synthesis Of Mmipmentioning

confidence: 99%

“…Based on the synthesis process, MMIP components consist of magnetic particles, magnetic surface modification components and polymerisation components, such as templates, functional monomers, cross-linkers and porogens [ 8 , 25 , 31 , 43 , 56 , 70 ]. MSPE primarily involves a magnetic adsorbent of MNPs, and the target analyte bound to the magnetic adsorbent by chemical or physical interaction, after which the complex is removed from the sample solution by an external magnetic field [ 70 ].…”

Section: Synthesis Of Mmipmentioning

confidence: 99%

“…Shao et al performed magnetic particle synthesis using a solvothermal method, which involved dissolving FeCl 3 .6H 2 O and sodium acetate in ethylene glycol with vigorous stirring, resulting in a yellow homogeneous solution, which was then transferred to an autoclave, sealed, heated at 200 °C for 8 h, and then cooled to room temperature [ 56 ]. The reaction product was black magnetite particles, which were then washed several times with ethanol and dried at 60 °C for 12 h [ 55 ].…”

Section: Factors Affecting Mmip Synthesismentioning

confidence: 99%

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Factors Affecting the Analytical Performance of Magnetic Molecularly Imprinted Polymers

et al. 2022

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During the last few years, separation techniques using molecular imprinting polymers (MIPs) have been developed, making certain improvements using magnetic properties. Compared to MIP, Magnetic molecularly imprinted polymers (MMIPs) have high selectivity in sample pre-treatment and allow for fast and easy isolation of the target analyte. Its magnetic properties and good extraction performance depend on the MMIP synthesis step, which consists of 4 steps, namely magnetite manufacture, magnetic coating using modified components, polymerization and template desorption. This review discusses the factors that will affect the performance of MMIP as a selective sorbent at each stage. MMIP, using Fe3O4 as a magnetite core, showed strong superparamagnetism; it was prepared using the co-precipitation method using FeCl3·6H2O and FeCl2·H2O to obtain high magnetic properties, using NH4OH solution added for higher crystallinity. In magnetite synthesis, the use of a higher temperature and reaction time will result in a larger nanoparticle size and high magnetization saturation, while a higher pH value will result in a smaller particle size. In the modification step, the use of high amounts of oleic acid results in smaller nanoparticles; furthermore, determining the correct molar ratio between FeCl3 and the shielding agent will also result in smaller particles. The next factor is that the proper ratio of functional monomer, cross-linker and solvent will improve printing efficiency. Thus, it will produce MMIP with high selectivity in sample pre-treatment.

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