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Modified montmorillonite with alkylamine chloroanthraquinoneas a colorimetric sensor for detection and separation of Cu2+from an aqueous solution |
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| รหัสดีโอไอ | |
| Creator | 1. Duangrat Thongkum 2. Thitiporn Nomnuch 3. Saksit Chuenchomnakjad |
| Title | Modified montmorillonite with alkylamine chloroanthraquinoneas a colorimetric sensor for detection and separation of Cu2+from an aqueous solution |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 1 |
| Page no. | 222-228 |
| Keyword | adsorption, chloroanthraquinone, colorimetric sensor, copper ion, montmorillonite |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | To compare the adsorption capacity of Cu2+ between Mt and Mt modified with alkylamine chloroanthraquinone for acolorimetric sensor (Mt-L), the adsorption by Mt and Mt-L of Cu2+ was studied by using UV-vis spectroscopy. Their structureswere characterized by FTIR spectroscopy and XRD techniques. Effects on the removal efficiency of Cu2+ by adsorbent quantity,pH, initial Cu2+concentration, equilibrium adsorption time, adsorption kinetics, and adsorption isotherm were determined. Theresults revealed that the maximum adsorption efficiency was 54% with an initial Cu2+ concentration of 3.50?10-3 M, 40.0 g/L ofMt-L and an initial pH of 5.0. The adsorption kinetics were compatible with the pseudo-second order model and the adsorptionisotherm with the Langmuir isotherm. The qm of Mt-L was calculated to be 9.5511 mg/g, which was higher than for the adsorptionof Cu2+ by Mt (2.6260 mg/g). Therefore, Mt-L has great potential as an adsorbent of Cu2+ions in aqueous solution. |
