Food dye adsorption in single and ternary systems by the novel passion fruit peel biochar adsorbent

Lucas Lacerda Cabral; Rúbia Camila Ronqui Bottini; Alexandre José Gonçalves; Milton Manzoni Junior; Roberta Carolina Pelissari Rizzo-Domingues; Marcelo Kaminski Lenzi; André Nagalli; Fernando Hermes Passig; Poliana Macedo Dos Santos; Karina Querne de Carvalho

doi:10.1016/j.foodchem.2024.141592

Food dye adsorption in single and ternary systems by the novel passion fruit peel biochar adsorbent

Food Chem. 2024 Oct 9;464(Pt 1):141592. doi: 10.1016/j.foodchem.2024.141592. Online ahead of print.

Affiliations

¹ Federal University of Technology - Paraná (UTFPR), Environmental Sciences and Technology Graduate Program, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340 Curitiba, Paraná, Brazil. Electronic address: [email protected].
² Federal University of Technology - Paraná (UTFPR), Chemistry and Biology Academic Department, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340 Curitiba, Paraná, Brazil. Electronic address: [email protected].
³ Federal University of Technology - Paraná (UTFPR), Civil Engineering Graduate Program, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340 Curitiba, Paraná, Brazil. Electronic address: [email protected].
⁴ Federal University of Technology - Paraná (UTFPR), Civil Engineering Graduate Program, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340 Curitiba, Paraná, Brazil. Electronic address: [email protected].
⁵ Federal University of Technology - Paraná (UTFPR), Chemistry and Biology Academic Department, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340 Curitiba, Paraná, Brazil. Electronic address: [email protected].
⁶ Federal University of Paraná (UFPR), Chemical Engineering Department, Centro Politécnico, Jardim das Américas, postal code 19011, 81531-980 Curitiba, Paraná, Brazil. Electronic address: [email protected].
⁷ Federal University of Technology - Paraná (UTFPR), Civil Construction Academic Department, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340 Curitiba, Paraná, Brazil. Electronic address: [email protected].
⁸ Federal University of Technology - Paraná (UTFPR), Chemistry and Biology Academic Department, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340 Curitiba, Paraná, Brazil. Electronic address: [email protected].
⁹ Federal University of Technology - Paraná (UTFPR), Chemistry and Biology Academic Department, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340 Curitiba, Paraná, Brazil. Electronic address: [email protected].
¹⁰ Federal University of Technology - Paraná (UTFPR), Civil Construction Academic Department, Deputado Heitor de Alencar Furtado St., 5000, Ecoville, 81280-340 Curitiba, Paraná, Brazil. Electronic address: [email protected].

PMID: 39406133
DOI: 10.1016/j.foodchem.2024.141592

Abstract

This study evaluated the passion fruit peel biochar (PFPB) as a novel adsorbent for synthetic food dyes indigotine blue (IB), tartrazine yellow (TY), and ponceau 4R (P4R) removal in single and ternary systems. A macroporous structure and a predominance of basic groups characterized PFPB. The pH study revealed better adsorption at pH 2.0. The response surface methodology optimization for adsorbent dosage and temperature predicted removal efficiencies of 100 % for IB, 79.8 % for TY, and 84.4 % for P4R. Elovich and Redlich-Peterson models better described kinetic and equilibrium, respectively, suggesting the contribution of chemical interactions. Thermodynamic data revealed endothermic, with an inordinate degree and spontaneous adsorption. In the ternary systems, antagonistic effects of interaction were noticed. The adsorption of synthetic effluents showed promising results with removal efficiencies of 99.6 % (IB), 60.2 % (TY), and 51.8 % (P4R). Therefore, we concluded that PFPB is a potential alternative low-cost synthetic food dye removal adsorbent.

Keywords: Biosorption; Elovich model; Redlich-Peterson model; Response surface methodology; Waste reuse.