Sorption of Amido Black 10 B onto calcined Zn-Al-NO₃ layered double hydroxide and calcined Zn-Al-CO₃ layered double hydroxide / Mohd Hanisafwan Suhaimi

Suhaimi, Mohd Hanisafwan (2009) Sorption of Amido Black 10 B onto calcined Zn-Al-NO₃ layered double hydroxide and calcined Zn-Al-CO₃ layered double hydroxide / Mohd Hanisafwan Suhaimi. [Student Project] (Unpublished)

Abstract

Layered double hydroxides (LDHs) calcined, denoted as CLDHs, have been shown to recover their original layered structure in the presence of appropriate anions. In the light of this so-called "memory effect", the removal of Amido Black (AB), an anionic dye, from aqueous solution by calcined Zn-Al-NO₃ and Zn-Al-C0₃ LDHs was investigated in batch mode. The study looked at the influence of pH values, dye-adsorbent contact time, initial dye concentration, adsorbent dosage, particle size, and various temperatures on the decolorization rate of AB. The adsorption isotherms, described by Freundlich model are L-type. The characterization of the solids CLDHs, both before and after removal of AB, by X-ray diffraction, Scanning Electron Microscope and infrared spectroscopy shows that the AB adsorption on CLDHs is enhanced by reconstruction of a matrix hydrotalcite intercaled by the dye, and the intercalation of the organic ion was clearly evidenced by the net increase in the basal spacing from 7.6 A for Zn-Al-NO₃ and 7.59 for Zn-Al-CO₃.

Metadata

Item Type: Student Project
Creators:
CreatorsID Num. / Email
Suhaimi, Mohd HanisafwanUNSPECIFIED
Subjects: Q Science > QD Chemistry > Organic chemistry
Q Science > QD Chemistry > Physical and theoretical chemistry
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Applied Sciences
Item ID: 23098
Uncontrolled Keywords: double hydroxide
URI: http://ir.uitm.edu.my/id/eprint/23098

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