TY - JOUR
T1 - The Applicability of Cellulose — Tara Gum Composite Hydrogels as Dye Capture Adsorbents
AU - Gomez-Maldonado, Diego
AU - Ponce, Silvia
AU - Peresin, Maria S.
N1 - Funding Information:
This work was supported by the National Science Foundation CAREER (award 2119809) through the BMAT program in the Division of Materials Research and the EPSCoR program. Also, support was provided by the USDA National Institute of Food and Agriculture, Hatch program (ALA013-17003), and McIntire-Stennis program (1022526). The School of Forestry and Wildlife Sciences at Auburn University’s financial support to complete this work is much appreciated. The authors also want to acknowledge the Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica Prociencia, through project no. 09–2020-FONDECYT-BM and to the Instituto de Investigación Científica (IDIC) of Universidad de Lima for their financial support for the research stay.
Funding Information:
The authors want to acknowledge the The Bioenergy Center of Auburn University for the access to their thermogravimetric analyzer.
Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
PY - 2022/8/1
Y1 - 2022/8/1
N2 - There is a growing interest in using naturally derived materials to generate adsorbent materials that can improve water quality by removing industrially derived pollutants such as dyes. In this work, composite beads were prepared from wood-based cellulose nanofibrils (CNF) and Tara gum (TG) by their co-dissolution in urea/sodium hydroxide alkaline media followed by co-regeneration in acidic media. The obtained beads were characterized by Fourier transformed infrared with attenuated total reflectance (FTIR-ATR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), elemental analysis (EA), and scanning electron microscopy (SEM), while the dye adsorption capacity was followed by UV–Vis spectroscopy. The results showed that a 40% substitution of the CNF with TG resulted in lightweight beads with 54% less solid content that maintained similar dimensions. These beads were tested for methylene blue (MB) adsorption at varying sorbent and pollutant concentrations. Methylene blue was selected as it is a common dye used as a redox indicator for tissue staining, dairy testing, microbiology, and in the textile and leather industries. Overall, the TG-CNF composite beads showed improved performance on dye adsorption, with 39.6% more capture when compared to the neat cellulose beads. The maximum adsorption capacity was calculated as 13.7 mg/g, utilizing an adsorption isotherm (2–15 ppm) fitted into the Langmuir model.
AB - There is a growing interest in using naturally derived materials to generate adsorbent materials that can improve water quality by removing industrially derived pollutants such as dyes. In this work, composite beads were prepared from wood-based cellulose nanofibrils (CNF) and Tara gum (TG) by their co-dissolution in urea/sodium hydroxide alkaline media followed by co-regeneration in acidic media. The obtained beads were characterized by Fourier transformed infrared with attenuated total reflectance (FTIR-ATR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), elemental analysis (EA), and scanning electron microscopy (SEM), while the dye adsorption capacity was followed by UV–Vis spectroscopy. The results showed that a 40% substitution of the CNF with TG resulted in lightweight beads with 54% less solid content that maintained similar dimensions. These beads were tested for methylene blue (MB) adsorption at varying sorbent and pollutant concentrations. Methylene blue was selected as it is a common dye used as a redox indicator for tissue staining, dairy testing, microbiology, and in the textile and leather industries. Overall, the TG-CNF composite beads showed improved performance on dye adsorption, with 39.6% more capture when compared to the neat cellulose beads. The maximum adsorption capacity was calculated as 13.7 mg/g, utilizing an adsorption isotherm (2–15 ppm) fitted into the Langmuir model.
KW - Agrowaste valorization
KW - Cellulose II
KW - Methylene blue
KW - Nanocellulose
KW - Water remediation
UR - https://hdl.handle.net/20.500.12724/17703
UR - http://www.scopus.com/inward/record.url?scp=85135487771&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/a799a598-6a7a-3d59-840a-a97e802051d9/
U2 - 10.1007/s11270-022-05818-z
DO - 10.1007/s11270-022-05818-z
M3 - Artículo (Contribución a Revista)
AN - SCOPUS:85135487771
SN - 0049-6979
VL - 233
JO - Water, Air, and Soil Pollution
JF - Water, Air, and Soil Pollution
IS - 8
M1 - 340
ER -