Your browser doesn't support javascript.
loading
Intensification of Cr(VI) adsorption using activated carbon adsorbent modified with ammonium persulfate.
Zahakifar, Fazel; Dashtinejad, Maryam; Sepehrian, Hamid; Samadfam, Mohammad; Fasihi, Javad; Yadollahi, Ali.
Afiliación
  • Zahakifar F; Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P. O. Box 11365/8486, Tehran, Iran.
  • Dashtinejad M; Department of Energy Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran.
  • Sepehrian H; Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P. O. Box 11365/8486, Tehran, Iran. Hsepehrian@aeoi.org.ir.
  • Samadfam M; Department of Energy Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran.
  • Fasihi J; Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P. O. Box 11365/8486, Tehran, Iran.
  • Yadollahi A; Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P. O. Box 11365/8486, Tehran, Iran.
Sci Rep ; 14(1): 16949, 2024 Jul 23.
Article en En | MEDLINE | ID: mdl-39043864
ABSTRACT
Granular activated carbon has been modified by ammonium persulfate as a new adsorbent for Cr(VI) adsorption from aqueous solutions. The adsorbent was characterized by nitrogen adsorption-desorption isotherm data and infrared spectroscopy. The impact of different factors, such as the initial pH level of the solution, time, temperature, ionic strength, and initial concentration of the Cr(VI) ion, on the adsorption efficiencies of the adsorbent has been studied by batch experiments. Kinetic studies and the adsorption thermodynamics of Cr(VI) with ammonium persulfate-modified activated carbon adsorbent were carefully studied. The results showed that the Cr(VI) adsorption follows a pseudo-second-order kinetic model and the adsorption reaction is endothermic and spontaneous. The adsorption isotherm was scrutinized, and the fitting results showed that the Langmuir model could well represent the adsorption process. The maximum adsorption capacity of Cr(VI) onto persulfate-modified activated carbon was 108.69 mg g-1. The research results showed that using persulfate-modified activated carbon adsorbent can greatly remove Cr(VI) from aqueous solutions.
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Irán Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: Irán Pais de publicación: Reino Unido