A novel method for the simple and simultaneous preconcentration of Pb2+, Cu2+and Zn2+ions with aid of diethylenetriamine functionalized SBA-15 nanoporous silica compound

Hajiaghababaei, Leila; Badiei, Alireza; Shojaan, M.; Ziarani, Ghodsi Mohammadi; Zarabadi–Poor, Pezhman

doi:10.1080/03067319.2011.585715

Cited by 13 publications

(6 citation statements)

References 46 publications

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“…[36] The N 2 desorption-adsorption isotherms for Cl-MCM-41, TTCA-MCM-41, and MCM-41, (Figure 3) revealed the standard IUPAC isotherm (type IV) corresponding to mesoporous compounds. [37] TTCA-MCM-41and Cl-MCM-41 revealed the same isotherms with comparatively less hysteresis loop and gas adsorption. The closely lower gas adsorption-desorption of TTCA-MCM-41 and Cl-MCM-41 reveals consistency with reducing the specific surface area and pore volume.…”

Section: Resultsmentioning

confidence: 77%

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Controlled Release Study of Metformin Using Trithiocyanuric Acid Functionalized MCM‐41 as a Nanocarrier

Hajiaghababaei,

Gholinejad Keshteli,

Badiei

et al. 2023

ChemistrySelect

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Ordered nanoporous silica such as MCM‐41 has silanol groups that can be chemically modified to effectively control the release of molecules. In this regard, MCM‐41 was functionalized with trithiocyanuric acid groups (TTCA‐MCM‐41) and offered as a novel carrier to the controlled release of metformin. TTCA‐MCM‐41 was synthesized and characterized. Thereafter, for 3 hours, saturated metformin solution was contacted with TTCA‐MCM‐41 to loading of drug. Finally, drug release profile was investigated in simulated body fluid (SBF) and phosphate buffers. The hexagonal symmetry of the TTCA‐MCM‐41 was confirmed by XRD patterns. The BET surface area, centred on N2 adsorption‐desorption, dropped from 846.5 m2/g for the MCM‐41 to 295.2 m2/g for the TTCA‐MCM‐41. With the use of FT‐IR spectra, the presence of TTCA groups in the silica system was established. The rope‐shaped morphology and the existence of S and N atoms on the MCM‐41 are visible in the SEM and EDX. The metformin release from TTCA‐MCM‐41 exhibits a pH‐based behaviour, and release rate was faster at higher pH compared to lower pH in phosphate buffers. In SBF, metformin displayed a steady release rate of around 0.2 mg min−1. The findings demonstrated that TTCA‐MCM‐41 is a promising candidate as a novel metformin carrier.

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Section: Resultsmentioning

confidence: 77%

“…The N 2 desorption‐adsorption isotherms for Cl‐MCM‐41, TTCA‐MCM‐41, and MCM‐41, (Figure 3) revealed the standard IUPAC isotherm (type IV) corresponding to mesoporous compounds [37] . TTCA‐MCM‐41and Cl‐MCM‐41 revealed the same isotherms with comparatively less hysteresis loop and gas adsorption.…”

Section: Resultsmentioning

confidence: 91%

Controlled Release Study of Metformin Using Trithiocyanuric Acid Functionalized MCM‐41 as a Nanocarrier

Hajiaghababaei,

Gholinejad Keshteli,

Badiei

et al. 2023

ChemistrySelect

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“…The recently discovered mesoporous silica (MCM-41) has received great interest as a solid support because of its unique large surface area, well-defined pore size, shape and its modifiable surface [19][20][21][22][23][24]. This major discovery came when Mobile reported the successful synthesis of mesoporous M41S materials in 1992 [25].…”

Section: Introductionmentioning

confidence: 98%

“…Therefore, SPME and DMSPE are promising techniques that not only provide clean extraction with less solvent, but also notably improve analytical figures of merit. Consequently, significant efforts have been made for developing simpler and cheaper adsorbents to improve the SPME and DMSPE selectivity and efficiency [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterisation and application of mercapto- and polyaminophenol-bifunctionalised MCM-41 for dispersive micro solid phase extraction of Ni(II) prio to inductively coupled plasma-optical emission spectrometry (DMSPE-ICP-OES)

Jalali¹,

Aliakbar

2015

International Journal of Environmental Analytical Chemistry

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“…Nanoporous silica materials have recently drawn the attraction of many researchers. Previous studies have reported different nanoporous materials in determination and adsorption applications, like the preconcentration and elimination of metal ions, [19][20][21][22][23][24][25] organic compounds, [26] dyes, [27][28][29][30] radio nuclides, [31] and anionic species. [32,33] These materials have a limited pore size distribution range, high specific surface area, and great surface concentration of À OH groups that can be simply manipulated at the silanol groups via grafting with commercially available organosilane materials.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Application of 3‐Pyridinecarbaldehyde Immobilized on MCM‐41 for Trace Analysis and Preconcentration of Copper Ions in Different Water Samples

2022

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Synthesis, characterization, and application of 3-pyridinecarbaldehyde immobilized on MCM-41 (PyÀ N-MCM-41) was studied. Trace analysis and pre-concentration of copper ions in water samples was done by PyÀ N-MCM-41as an adsorbent prior to flame atomic absorption spectrometry. X-ray diffraction of calcined MCM-41 exhibited that is characteristic of the mesopores silica with hexagonal symmetric structure. Fourier transform infrared spectrum of the PyÀ N-MCM-41demonstrated the existence of functional groups and N 2 adsorption-desorption showed Brunauer-Emmett-Teller surface area of 770 m 2 g À 1 and pore diameter of 2.42 nm. After 30 min stirring, Cu 2 + was extracted at pH 5-7. The highest adsorption capacity of the PyÀ N-MCM-41 was 135 μg mg À 1 . Based on the lowest quantity of acid to strip the ions from adsorbent, the technique's preconcentration factor was 30. The relative standard deviation (C = 40 ng mL À 1 , n = 5) was 2.9 % and detection limit was 1.6 ng mL À 1 . An acceptable consistency was observed between the measured amounts of Cu 2 + by the thermal and proposed pre-concentration approaches in different water samples, suggesting high accuracy of the technique.

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A novel method for the simple and simultaneous preconcentration of Pb²⁺, Cu²⁺and Zn²⁺ions with aid of diethylenetriamine functionalized SBA-15 nanoporous silica compound

Cited by 13 publications

References 46 publications

Controlled Release Study of Metformin Using Trithiocyanuric Acid Functionalized MCM‐41 as a Nanocarrier

Controlled Release Study of Metformin Using Trithiocyanuric Acid Functionalized MCM‐41 as a Nanocarrier

Synthesis, characterisation and application of mercapto- and polyaminophenol-bifunctionalised MCM-41 for dispersive micro solid phase extraction of Ni(II) prio to inductively coupled plasma-optical emission spectrometry (DMSPE-ICP-OES)

Synthesis and Application of 3‐Pyridinecarbaldehyde Immobilized on MCM‐41 for Trace Analysis and Preconcentration of Copper Ions in Different Water Samples

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