Application of magnetic particles modified with amino groups to adsorb copper ions in aqueous solution

Lin, Ya-Fen; Chen, Huawei; Lin, Kae‐Long; Chen, Boryann; Chiou, Chyow-San

doi:10.1016/s1001-0742(10)60371-3

Cited by 108 publications

(55 citation statements)

References 31 publications

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“…Fig. 1 also showed the intensity of XRD pattern of Fe3O4/SiO2/ED indicating compatibility with XRD pattern of bare Fe3O4, and it supports result reported by Lin et al [14] that coating does not change the structure of magnetite. Furthermore, the particle size with a certain phase can be determined from the data of XRD.…”

Section: Characteristics Of Fe3o4/sio2/edsupporting

confidence: 85%

Functionalization of Fe3O4/SiO2 with N-(2-Aminoethyl)-3-aminopropyl for Sorption of [AuCl4]-

et al. 2018

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Synthesis of Fe3O4/SiO2 modified with N-(2-aminoethyl)-3-aminopropyl group (Fe3O4/SiO2/ED) via coating method and its application for adsorption-desorption of anionic gold in aqueous solution have been conducted. The synthesized product was characterized with an X-ray diffractometer (XRD), a Fourier transform infrared (FT-IR) spectrophotometer and a transmission electron microscopy (TEM). Adsorption of Au(III) was conducted in a batch ABSTRAK Sintesis Fe3O4/SiO2 termodifikasi dengan gugus N-(2aminoetil)-3-aminopropil (Fe3O4/SiO2/ED) menggunakan metode pelapisan dan aplikasinya untuk adsorpsi-desorpsi ion emas dalam larutan air telah berhasil dilakukan. Produk hasil sintesis dikarakterisasi menggunakan difraktometer sinar-X (XRD), spektrofotometer inframerah (FTIR) dan mikroskop transmisi elektron (TEM). Adsorpsi ion Au(III) dilakukan dalam sistem batch dan variabel-variabel meliputi pH, waktu kontak dan konsentrasi awal telah diteliti. Hasil penelitian menunjukkan bahwa magnetit/silika telah berhasil difungsionalisasi menggunakan N-(2aminoetil)-

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Section: Characteristics Of Fe3o4/sio2/edsupporting

confidence: 85%

Functionalization of Fe3O4/SiO2 with N-(2-Aminoethyl)-3-aminopropyl for Sorption of [AuCl4]-

et al. 2018

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“…In addition, on ASC and ASMC still contained -OH (silanol) and -Si-O-Si-(siloxane) which can also act as a donor in these conditions, because it tends to negatively charged. At pH 6, the adsorption begins to decline, since Cu(II) ions started hydrolyzed to form deposited metal hydroxide species [25,26]. Adsorption kinetics: Effect of interaction time of Cu(II) ion on ASC and ASMC is presented in Fig.…”

Section: Resultsmentioning

confidence: 99%

Modification of Chaetoceros sp. Biomass with Silica-Magnetite Coating and Adsorption Studies towards Cu(II) Ions in Single and Binary System

Buhani¹,

Musrifatun²,

Pratama³

et al. 2017

Asian J. Chem.

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Adsorbent synthesis from Chaetoceros sp. biomass with silica-magnetite coating technique (ASMC) and without magnetite (ASC) has been performed through the sol-gel process. Both adsorbents were characterized by infrared spectrophotometer, X-Ray diffraction and scanning electron microscopy. The adsorption process of Cu(II) ions was performed in a single and binary systems using batch method. The adsorption data of Cu(II) ions on ASC and ASMC within a single system follows the pseudo kinetic model of order 2 with the adsorption rate of Cu(II) ions on ASMC faster than ASC. The adsorption isotherm model of Cu(II) ions on ASC and ASMC tend to follow Langmuir adsorption isotherm model with adsorption capacity of 57.77 and 105.91 mg g -1 , respectively. The ASMC material is not selective for Cu(II) ions with the ion pairs such as Ni(II), Zn(II), Cd(II) and Pb(II) ions.

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“…The FT-IR analysis of the Fe 3 O 4 @SiO 2 and Fe 3 O 4 @SiO 2 sulfonic acid exhibits two basic characteristic peaks at ~3300 cm -1 (O-H stretching) and 580 cm -1 (Fe-O vibration). 34 The band at 1081 cm -1 comes from the Si-O-Si group. The presence of the sulfonyl group of Fe 3 O 4 @Silica sulfonic acid is confirmed by 1217 cm -1 and 1124 cm -1 bands, which were covered by a stronger absorption of Si-O bonds at 1081 cm -1 .…”

Section: Resultsmentioning

confidence: 99%

Fe3O4@SiO2-OSO3H nanocomposite as an efficient catalyst for the preparation of tricarboxamides

Ghasemzadeh

2016

Quim. Nova

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In this research a highly efficient one-pot preparation of tricarboxamide derivatives via five-component reactions of isocyanides, aldehydes Meldrum's acid and 2equiv. of amines have been developed in the presence of Fe 3 O 4 @SiO 2 -OSO 3 H nanocomposite. NanoFe 3 O 4 encapsulated-silica particles bearing sulfonic acid was readily recovered using an external magnet and could be reused several times without significant loss of reactivity. The catalyst was fully characterized by VSM, FT-IR, SEM, XRD, EDX and TEM analysis.

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Application of magnetic particles modified with amino groups to adsorb copper ions in aqueous solution

Cited by 108 publications

References 31 publications

Functionalization of Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> with N-(2-Aminoethyl)-3-aminopropyl for Sorption of [AuCl<sub>4</sub>]<sup>-</sup>

Functionalization of Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> with N-(2-Aminoethyl)-3-aminopropyl for Sorption of [AuCl<sub>4</sub>]<sup>-</sup>

Modification of Chaetoceros sp. Biomass with Silica-Magnetite Coating and Adsorption Studies towards Cu(II) Ions in Single and Binary System

Fe3O4@SiO2-OSO3H nanocomposite as an efficient catalyst for the preparation of tricarboxamides

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