Isotherm and pH Effect Studies of Tetracycline Drug Removal from Aqueous Solution Using Cobalt Oxide Surface

Authors

  • Hawraa Kassem Hami Department of Chemistry, Collage of Science, Al-Mustansiryiah University, Baghdad-Iraq.
  • Ruba Fahmi Abbas Department of Chemistry, Collage of Science, Al-Mustansiryiah University, Baghdad-Iraq.
  • Ali Amer Waheb Department of Chemistry, Collage of Science, Al-Mustansiryiah University, Baghdad-Iraq.
  • Dhifaf A Abdul abass Department of Chemistry, Collage of Science, Al-Mustansiryiah University, Baghdad-Iraq.
  • Marwa A Abed Department of Chemistry, Collage of Science, Al-Mustansiryiah University, Baghdad-Iraq.
  • Asmaa A Maryoosh Department of Chemistry, Collage of Science, Al-Mustansiryiah University, Baghdad-Iraq.

Keywords:

Isotherm, Doxycycline, Adsorption, Cobalt Oxide, The point of zero charges pHzc

Abstract

Tetracycline adsorption on the surface of cobalt oxide studied in this work to determine the appropriate conditions for increasing the efficiency of adsorption by changing the temperature, adsorbed dosages, concentration, contact time and pH. The results showed that the rate of adsorption decreased by increasing the temperature and concentration and at 45 minutes with
0.1 gm of Co3O4. The influence of pH on adsorption at pH (1.2, 6, 8) was studied and concentration with a linear range of (20-70 mg/l), the adsorption ratio decreased by increasing the concentration at the same pH. The point of zero charges pHzc calculated and found to be equal to 7.2. Both Langmuir and Freundlich isotherm studied. The result showed a good agreement with Freundlich linear model.

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Published

2019-06-30

Issue

Vol. 22 No. 2 (2019): June

Section

Articles

How to Cite

(1)
Isotherm and PH Effect Studies of Tetracycline Drug Removal from Aqueous Solution Using Cobalt Oxide Surface. ANJS 2019, 22 (2), 12-18.