Caulerpa sertularioides Extract as a Complexing Agent in the Synthesis of ZnO and Zn(OH)2 Nanoparticles and its Effect in the Azo Dye’s Photocatalysis in Water

Daniel Garcia-Bedoya, Luis P. Ramírez-Rodríguez, Jesús M. Quiroz-Castillo, Edgard Esquer-Miranda, Arnulfo Castellanos-Moreno*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Algae constitute a diverse group that is useful in many biotechnological areas. In this paper, the usefulness of Caulerpa sertularioides methanol extract in the synthesis of ZnO and Zn(OH)2 nanoparticles was explored. This work had two main objectives: (1) to use the extract in the synthesis as an organic harmless complexing agent, and (2) to enhance a photocatalytic effect over AZO dyes in wastewater from fabric industries without adding nanomaterial to the environment due to its toxicity. Caulerpa extract performed the expected complexing action, and nanoparticles were formed in a size range from 45 to 69 nm. X-ray diffraction analysis (XRD), transmission electron microscopy (TEM) and UV-Vis spectroscopy were used to characterize the system. It was demonstrated that the nanoparticles were useful to photocatalyst AZO dyes in the water, while contained in tetraethylorthosilicate composites. These could be used in industrial wastewater and are expected to have no environmental consequences because the composites do not add nanoparticles to the water.

Original languageEnglish
Pages (from-to)1548-1560
Number of pages13
JournalBioResources
Volume16
Issue number1
DOIs
StatePublished - 2021

Bibliographical note

Funding Information:
The authors thank all the personal in the "Semiconductores" lab at DIFUS-UNISON for their support and the training in the Sol-Gel method, and the “Departamento de Investigación en Polímeros y Materiales” for the TEM micrographs. The authors thank UES’s CA-Ingeniería Ambiental and the “Laboratorio de Calidad y Restauración del Agua” for their support and Ana Lourdes Partida Gámez for her revision to this manuscript. We also thank R.A. Rosas-Burgos, A. Corella-Madueño, R.P. Duarte-Zamorano, and the anonymous reviewers for their comments and suggestions to improve this paper.

Publisher Copyright:
© 2021, North Carolina State University. All rights reserved.

Keywords

  • Caulerpa sertularioides
  • Nanoparticles
  • Nanotechnology
  • Zn(OH)
  • ZnO

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