The usage of CoAl−layered double oxide for removal of toxic dye fromaqueous solution

Authors

Pornnapa Tongchoo
Sonchai Intachai
Prakaidao Pankam
Chomponoot Suppaso
Nithima Khaorapapong

Publication Date

2020-12-01

Abstract

CoAl−layered double oxide derived from calcination of CoAl−layered double hydroxide at400Cfor 120 min, delivered the change in microstructure with increasing surface area. Spinel Co3O4was the majority in the product as confirmed by X-ray diffraction, and Fourier transform infrared andUV-visible spectroscopies. The calcined product, CoAl−layered double oxide resulted in significantadsorption capacity on dye removal superior to that of CoAl−layered double hydroxide. The adsorbed amounts of the diverse dyes increased as follows: methylene blue phenolphthaleinmethyl orange orange II. The adsorption affinity between adsorbent and dyes relied on electrostatic interaction and physical adsorption.

First Page

45

Last Page

50

Recommended Citation

Tongchoo, Pornnapa; Intachai, Sonchai; Pankam, Prakaidao; Suppaso, Chomponoot; and Khaorapapong, Nithima (2020) "The usage of CoAl−layered double oxide for removal of toxic dye fromaqueous solution," Journal of Metals, Materials and Minerals: Vol. 30: No. 4, Article 5.
Available at: https://digital.car.chula.ac.th/jmmm/vol30/iss4/5