Comprehensive study on chromate ions removal at different basicity whit zeolite of natural mordenite type

Authors

  • Valduvina Córdova-Rodríguez Centro Nacional de Electromagnetismo Aplicado, Universidad de Oriente, Santiago de Cuba, Cuba
  • Inocente Rodríguez-Iznaga Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Cuba
  • Leonel Garcell-Puyàns Facultad de Ingeniería Química y Agronomía, Universidad de Oriente, Santiago de Cuba, Cuba
  • Vitalii Petranovskii Centro de Nanociencias y Nanotecnología (CNyN), Universidad Nacional Autónoma de México, México
  • Dunia Rodríguez-Heredia Facultad de Ingeniería Química y Agronomía, Universidad de Oriente, Santiago de Cuba, Cuba

Keywords:

natural zeolite; mordenite; chromate; neutralization; specific adsorption.

Abstract

This work presents a comprehensive study on chromate ions (CrO42-) removal from aqueous solutions for different levels of alkalinity in the natural mordenite zeolite from Palmarito de Cauto deposit. The Surface charge density and zero charge point (p.z.c.) values of the zeolite were determined, which lead to outline that these ions are adsorbed on this mineral in a specifically form and it was associated with the formation of an electric layer double. Through atomic emission spectroscopy, infrared spectroscopy (FT-IR) and scanning electron microscopy (MEB) with EDX was showed that this zeolite removes chromium from the aqueous solutions of chromate ions and it occurs independently of its basicity level. The mineral has a significant neutralizing effect on alkaline solutions. The results provide information that expands the useful potential of an abundant natural resource, with low cost and great accessibility.

Downloads

Published

2021-01-06

How to Cite

Córdova-Rodríguez, V., Rodríguez-Iznaga, I., Garcell-Puyàns, L., Petranovskii, V., & Rodríguez-Heredia, D. (2021). Comprehensive study on chromate ions removal at different basicity whit zeolite of natural mordenite type. Revista Cubana De Química, 32(3), 494–510. Retrieved from https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/5158

Issue

Vol. 32 No. 3 (2020)

Section

Artículos

License

This journal provides immediate open access to its content, based on the principle that offering the public free access to research helps a greater global exchange of knowledge. Each author is responsible for the content of each of their articles. 

Most read articles by the same author(s)