Application of Orange Peel Waste as Adsorbent for Methylene Blue and Cd2+ Simultaneous Remediation

Stephanie Giraldo, Nancy Y. Acelas, Raúl Ocampo-Pérez, Erika Padilla-Ortega, Elizabeth Flórez, Camilo A. Franco, Farid B. Cortés, Angélica Forgionny

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Pollution by dyes and heavy metals is one of the main concerns at the environmental level due to their toxicity and inefficient elimination by traditional water treatment. Orange peel (OP) without any treatment was applied to effectively eliminate methylene blue (MB) and cadmium ions (Cd2+) in mono- and multicomponent systems. Although the single adsorption processes for MB and Cd2+ have been investigated, the effects and mechanisms of interactions among multicomponent systems are still unclear. Batch experiments showed that in monocomponent systems, the maximum adsorption capacities were 0.7824 mmol g-1 for MB and 0.2884 mmol g-1 for Cd2+, while in multicomponent systems (Cd2+ and MB), both contaminants competed for the adsorption sites on OP. Particularly, a synergic effect was observed since the adsorption capacity of Cd2+ increased compared to the monocomponent system. Results of desorption and adsorbent reuse confirmed that the adsorbent presents good regeneration performance. The low cost of this material and its capacity for the individual or simultaneous removal of Cd2+ and MB in aqueous solutions makes it a potential adsorbent for polluted water treatment processes.

Original languageEnglish
Article number5105
JournalMolecules (Basel, Switzerland)
Volume27
Issue number16
DOIs
StatePublished - 11 Aug 2022

Keywords

  • adsorption process
  • agroindustrial waste
  • cadmium
  • methylene blue
  • multicomponent adsorption
  • orange peel
  • water treatment

Fingerprint

Dive into the research topics of 'Application of Orange Peel Waste as Adsorbent for Methylene Blue and Cd2+ Simultaneous Remediation'. Together they form a unique fingerprint.

Cite this