A Novel Triazole Schiff Base Derivatives for Remediation of Chromium Contamination from Tannery Waste Water

Ahmad A Alluhaybi; Ahmed Alharbi; Ahmed M Hameed; Ayman A Gouda; Fatma S Hassen; Hassan S El-Gendy; Bahig M Atia; Amany R Salem; Mohamed A Gado; Antoaneta Ene; Hamdy A Awad; Hesham M H Zakaly

doi:10.3390/molecules27165087

A Novel Triazole Schiff Base Derivatives for Remediation of Chromium Contamination from Tannery Waste Water

Molecules. 2022 Aug 10;27(16):5087. doi: 10.3390/molecules27165087.

Authors

Affiliations

¹ Department of Chemistry, College of Science and Arts, King Abdulaziz University, Rabigh 22254, Saudi Arabia.
² Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia.
³ Chemistry Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt.
⁴ Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo 11936, Egypt.
⁵ INPOLDE Research Center, Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, Romania.
⁶ Geology Department, Faculty of Science, Al-Azhar University, Assiut Branch 71524, Egypt.
⁷ Institute of Physics and Technology, Ural Federal University, Yekaterinburg 620002, Russia.
⁸ Physics Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt.

Abstract

Tannery industries are one of the extensive industrial activities which are the major source of chromium contamination in the environment. Chromium contamination has been an increasing threat to the environment and human health. Therefore, the removal of chromium ions is necessary to save human society. This study is oriented toward the preparation of a new triazole Schiff base derivatives for the remediation of chromium ions. 4,4'-((1E)-1,2-bis ((1H-1,2,4-triazol-3-yl) imino)ethane-1,2-diyl) diphenol was prepared by the interaction between 3-Amino-1H-1,2,4-triazole and 4,4'-Dihydroxybenzil. Then, the produced Schiff base underwent a phosphorylation reaction to produce the adsorbent (TIHP), which confirmed its structure via the different tools FTIR, TGA, ¹HNMR, ¹³CNMR, GC-MS, and Phosphorus-31 nuclear magnetic resonance (³¹P-NMR). The newly synthesized adsorbent (TIHP) was used to remove chromium oxyanions (Cr(VI)) from an aqueous solution. The batch technique was used to test many controlling factors, including the pH of the working aqueous solution, the amount of adsorbent dose, the initial concentration of Cr(VI), the interaction time, and the temperature. The desorption behaviour of Cr(VI) changes when it is exposed to the suggested foreign ions. The maximum adsorption capacity for Cr(VI) adsorption on the new adsorbent was 307.07 mg/g at room temperature. Freundlich's isotherm model fits the adsorption isotherms perfectly. The kinetic results were well-constrained by the pseudo-second-order equation. The thermodynamic studies establish that the adsorption type was exothermic and naturally spontaneous.

Keywords: adsorption; chromium; schiff base; tannery waste water; triazole derivatives.

MeSH terms

Adsorption
Chromium / chemistry
Humans
Hydrogen-Ion Concentration
Ions
Kinetics
Schiff Bases
Triazoles
Wastewater
Water Pollutants, Chemical* / chemistry
Water Purification* / methods

Substances

Ions
Schiff Bases
Triazoles
Waste Water
Water Pollutants, Chemical
Chromium

Grants and funding

The APC was funded by “Dunarea de Jos” University of Galati, Romania. The researcher H.A.A is funded by a scholarship under the Joint (Executive Program between Egypt and Russia).