F
Francisco H. A. Rodrigues
Researcher at Universidade Estadual de Maringá
Publications - 27
Citations - 1749
Francisco H. A. Rodrigues is an academic researcher from Universidade Estadual de Maringá. The author has contributed to research in topics: Self-healing hydrogels & Adsorption. The author has an hindex of 16, co-authored 27 publications receiving 1393 citations. Previous affiliations of Francisco H. A. Rodrigues include Federal University of Ceará & Universidade Estadual do Vale do Acaraú.
Papers
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Journal ArticleDOI
Chitosan- graft -poly(acrylic acid)/rice husk ash based superabsorbent hydrogel composite: preparation and characterization
Francisco H. A. Rodrigues,André R. Fajardo,Antonio G.B. Pereira,Nágila M.P.S. Ricardo,Judith P.A. Feitosa,Edvani C. Muniz +5 more
TL;DR: In this paper, rice husk ash (RHA), an industrial waste, was incorporated in the preparation of high performance chitosan and poly(acrylic acid) (PAA) based superabsorbent hydrogel.
Journal ArticleDOI
Superabsorbent hydrogel composite made of cellulose nanofibrils and chitosan-graft-poly(acrylic acid)
Cristiane Spagnol,Francisco H. A. Rodrigues,Antonio G.B. Pereira,André R. Fajardo,Adley F. Rubira,Edvani C. Muniz +5 more
TL;DR: In this paper, a 24−1 fractional factorial design was employed to evaluate the effect of acrylic acid/chitosan molar ratio, crosslinker, initiator, and filler in the swelling capacity of hydrogel composites.
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Cellulose nanowhiskers improve the methylene blue adsorption capacity of chitosan-g-poly(acrylic acid) hydrogel.
Bruno C. Melo,Francisco A.A. Paulino,Varneir A. Cardoso,Antonio G.B. Pereira,André R. Fajardo,Francisco H. A. Rodrigues +5 more
TL;DR: Cellulose nanowhiskers (CNWs, 90% crystalline) were used to enhance the adsorption capacity of chitosan-g-poly(acrylic acid) hydrogel and showed improved adsorptive capacity towards methylene blue (MB) as compared to the pristine hydrogels.
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Recent advances on composite hydrogels designed for the remediation of dye-contaminated water and wastewater: A review
Antonio G.B. Pereira,Francisco H. A. Rodrigues,Alexandre Tadeu Paulino,Alessandro F. Martins,André R. Fajardo +4 more
TL;DR: In this article, an entirely conceptual and critical review of literature is presented, focusing on the tremendous potential of composite hydrogels to remediate dye-contaminated water, and the main drawbacks and challenges associated with the application of these types of materials are reviewed to understand the research gap and limitations regarding their practical use.
Journal ArticleDOI
Superabsorbent hydrogel nanocomposites based on starch- g -poly(sodium acrylate) matrix filled with cellulose nanowhiskers
Cristiane Spagnol,Francisco H. A. Rodrigues,Antonio G.B. Pereira,André R. Fajardo,Adley F. Rubira,Edvani C. Muniz +5 more
TL;DR: In this article, a set of experiments were performed to evaluate the influence of some factors such as NaAc/starch mass ratio, crosslinker, and nanowhiskers amount in the swelling capacity and swelling kinetics.