CNTs coated charcoal as a hybrid composite material: Adsorption of fluoxetine probed by zebrafish embryos and its potential for environmental remediation

Autor(es)

Sousa-Moura, Diego ^[1] ; Matsubara, Elaine Yoshiko ^[2] ; Machado Ferraz, Irvin Bryan ^[1] ; de Oliveira, Rhaul ^[1] ; Szlachetka, Isis Oliveira ^[3] ; da Silva, Sebastido William ^[3] ; Camargo, Nachollas Serafim ^[1] ; Rosolen, Jose Mauricio ^[2] ; Grisolia, Cesar Koppe ^[1] ; Oliveira da Rocha, Marcia Cristina ^[1]

Afiliação do(s) autor(es)

^[1] Univ Brasilia, Inst Ciencias Biol, Dept Genet & Morfol, Brasilia, DF - Brazil

^[2] Univ Sao Paulo, FFCLRP, Dept Quim, BR-14040901 Ribeirao Preto, SP - Brazil

^[3] Univ Brasilia, Inst Fis, Lab Fis Aplicada, Brasilia, DF - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Chemosphere; v. 230, p. 369-376, SEP 2019.
• Citações Web of Science: 0

Resumo

Although traditional water treatment systems can remove various substances from wastewater, these conventional systems fail to remove many chemical molecules that pose potential ecological and health risks. Carbon nanotubes (CNTs) appear attractive to adsorption of many substances, but CNTs adsorbed with toxic substances becomes a nanocomposite still more toxic. Here, we employ zebrafish embryos as biosensor to examine how a hybrid micro/nanostructured carbonaceous material (HMNC) derived from a combination of activated carbon (AC) with hydrophilic carbon nanotubes (CNTs) can remediate waste-water contaminated with the pharmaceutical fluoxetine hydrochloride (FLX). AC and HMNC are practically non-toxic to zebrafish embryos (LC50 > 1000 mg.L-1). HMNC addition to culture medium containing FLX significantly reduces sublethal effects and lethality. Interaction between FLX and HMNC involves chemical adsorption such that embryo co-exposure to HMNC adsorbed with FLX in the range of concentrations evaluated herein does not elicit any behavioral changes in zebrafish. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 17/04759-2 - Free-binder eletrodos para dispositivos de armazenagem/conversão de energia
• Beneficiário: Jose Mauricio Rosolen
• Modalidade de apoio: Auxílio à Pesquisa - Regular