Giovana Arrighi Ferrari, Felipe Santana de Oliveira Cruz, Renata Pereira Lopes Moreira, Gustavo Alves Puiatti, Luiza Dumont de Miranda Moraes, André Fernando Oliveira


Iron nanoparticles (nZVI) stand out in environmental remediation due to their high reactivity. However, they have low chemical stability when exposed to oxygen and water, reducing their effectiveness. The objective of this work was to develop and validate a method to evaluate the efficiency of nZVI from synthetic lots L01 and L02, from the degradation of dyes, orange and methyl violet (MO and MV). The previous degradation tests provided the best results for MO (~100% degradation, 12 min reaction, 0.5 g L-1 dose). The optimization using Factorial Planning obtained the optimal condition, CMO = 5.98 mol L-1 and DnZVI = 0.56 g L-1. The Boltzmann model fitted the results obtained (R2 = 0.993). Finally, a mathematical relationship was obtained that provided equivalent doses of L01 and L02 in relation to the Standard. The applied mathematical adjustments presented R²> 0.99 and errors <4%.


Zero-valent iron, Optimization, Removal efficiency, Method validation.

Texto completo:

PDF (English)


ADAMS, E. Q.; ROSENSTBIN, L. The color and ionization of crystal-violet. Journal of the American Chemical Society, v. 36, n. 7, p. 1452–1473, 1914.

ARCANJO, G. S. et al. Heterogeneous photocatalysis using TiO2modified with hydrotalcite and iron oxide under UV–visible irradiation for color and toxicity reduction in secondary textile mill effluent. Journal of Environmental Management, v. 211, p. 154–163, 2018.

BHATTACHARJEE, A. et al. Photodegradation of methyl violet 6B and methylene blue using tin-oxide nanoparticles (synthesized via a green route). Journal of Photochemistry and Photobiology A: Chemistry, v. 325, p. 116–124, jul. 2016.

CRANE, R. A.; SCOTT, T. B. Nanoscale zero-valent iron: Future prospects for an emerging water treatment technology. Journal of Hazardous Materials, v. 211–212, p. 112–125, abr. 2012.

FERREIRA, S. Doehlert matrix: a chemometric tool for analytical chemistry-review. Talanta, v. 63, n. 4, p. 1061–1067, jul. 2004.

FU, F.; DIONYSIOU, D. D.; LIU, H. The use of zero-valent iron for groundwater remediation and wastewater treatment: A review. Journal of Hazardous Materials, v. 267, p. 194–205, 2014.

HOLKAR, C. R. et al. A critical review on textile wastewater treatments: Possible approaches. Journal of Environmental Management, v. 182, p. 351–366, 2016.

KAUR, P.; KUSHWAHA, J. P.; SANGAL, V. K. Evaluation and disposability study of actual textile wastewater treatment by electro-oxidation method using Ti/RuO2anode. Process Safety and Environmental Protection, v. 111, p. 13–22, 2017.

LI, P. et al. Enhanced decolorization of methyl orange using zero-valent copper nanoparticles under assistance of hydrodynamic cavitation. Ultrasonics Sonochemistry, v. 22, p. 132–138, 2015.

LIN, Y. et al. Degradation of scarlet 4BS in aqueous solution using bimetallic Fe/Ni nanoparticles. Journal of Colloid and Interface Science, v. 381, n. 1, p. 30–35, 2012.

OH, S. Y. et al. Enhancing Fenton oxidation of TNT and RDX through pretreatment with zero-valent iron. Water Research, v. 37, n. 17, p. 4275–4283, 2003.

PASCHOALINO, M. P.; MARCONE, G. P. S.; JARDIM, W. F. Os nanomateriais e a questão ambiental. Quimica Nova Nova, v. 33, n. 2, p. 421–430, 2010.

PAZ, A. et al. Biological treatment of model dyes and textile wastewaters. Chemosphere, v. 181, p. 168–177, 2017.

PEREIRA, W. S.; FREIRE, R. S. Ferro zero: Uma nova abordagem para o tratamento de águas contaminadas com compostos orgânicos poluentes. Quimica Nova, v. 28, n. 1, p. 130–136, 2005.

QUINA, F. H. Nanotecnologia e o meio ambiente: perspectivas e riscos. Química Nova, v. 27, n. 6, p. 1028–1029, 2004.

SHARMA, G. et al. Novel development of nanoparticles to bimetallic nanoparticles and their composites: A review. Journal of King Saud University - Science, 2017.

SHIH, Y. H.; HSU, C. Y.; SU, Y. F. Reduction of hexachlorobenzene by nanoscale zero-valent iron: Kinetics, pH effect, and degradation mechanism. Separation and Purification Technology, v. 76, n. 3, p. 268–274, 2011.

SHU, H.-Y. et al. Using resin supported nano zero-valent iron particles for decoloration of Acid Blue 113 azo dye solution. Journal of Hazardous Materials, v. 184, n. 1–3, p. 499–505, dez. 2010.

WANG, W. et al. Iron nanoparticles decoration onto three-dimensional graphene for rapid and efficient degradation of azo dye. Journal of Hazardous Materials, v. 299, p. 50–58, 2015.

WEI-XIAN ZHANG. Nanoscale iron particles for environmental remediation- An overview.pdf. Journal of Nanoparticle Research, v. 5, p. 323–332, 2003.

WENG, X. et al. Enhancement of catalytic degradation of amoxicillin in aqueous solution using clay supported bimetallic Fe/Ni nanoparticles. Chemosphere, v. 103, p. 80–85, maio 2014.

ZHAI, L. et al. Fabrication of chitosan microspheres for efficient adsorption of methyl orange. Chinese Journal of Chemical Engineering, v. 26, n. 3, p. 657–666, mar. 2018.

ZHAO, D. et al. Catalytic dechlorination of 2,4-dichlorophenol by Ni/Fe nanoparticles prepared in the presence of ultrasonic irradiation. Ultrasonics Sonochemistry, v. 21, n. 5, p. 1714–1721, 2014.



  • Não há apontamentos.

Direitos autorais 2019 The Journal of Engineering and Exact Sciences

Licença Creative Commons
Esta obra está licenciada sob uma licença Creative Commons Atribuição - Não comercial - Compartilhar igual 4.0 Internacional.

eISSN 2527-1075 - The Journal of Engineering and Exact Sciences - jCEC

Av. P. H. Rolfs, s/n Departamento de Química/UFV

36570-900 Viçosa-MG/Brazil

Cover Page for Authors Form:


Flag Counter