Removal of rhodamine B and methylene blue using residual Onecarpus bacaba Mart fibers as biosorbent: kinetic and thermodynamic parameters

Removal of rhodamine B and methylene blue using residual Onecarpus bacaba Mart fibers as biosorbent: kinetic and thermodynamic parameters

Among the most common water contaminants, dyes are responsible for polluting rivers and other water bodies as well as contributing to other environmental problems, thus posing serious health hazards to humans and animals. In order to minimize these environmental impacts, this study proposes the use...

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Bibliographic Details
Published in:Discover water Vol. 4; no. 1; pp. 13 - 17
Main Authors: Rolim, Eberlanny Moraes, da Silva, Andreza Miranda Barata, dos Santos Batista, Joel, Serrão, Naiany Oliveira, Laier, Leticia Oliveira, de Freitas, Flávio Augusto, Perotti, Gustavo Frigi, de Moura do Carmo, Dominique Fernandes, de Gusmão Celestino, Gustavo, Maia, Paulo José Sousa
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 25-03-2024
Springer Nature B.V
Springer
Subjects:
Activated carbon
Adsorbents
Adsorption
Aquatic Pollution
Carcinogens
Coastal Sciences
Dye removal
Dyes
Earth and Environmental Science
Earth Sciences
Electron microscopes
Fruits
Germplasm
Hydrogeology
Investigations
Marine & Freshwater Sciences
Oceanography
Onecarpus bacaba
Scanning electron microscopy
Spectrum analysis
Toxicity
Waste Water Technology
Wastewater
Water Management
Water Pollution Control
Brazil
Amazon Basin
Adsorption
Wastewater
Dye removal
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Summary:Among the most common water contaminants, dyes are responsible for polluting rivers and other water bodies as well as contributing to other environmental problems, thus posing serious health hazards to humans and animals. In order to minimize these environmental impacts, this study proposes the use of Onecarpus bacaba Mart fiber residues, in natura (OBMi) and NaOH-modified (OBMm), to bioadsorb rhodamine b (RhB) and methylene blue (MB) dyes. The biosorbents OBMi and OBMm were characterized by means of infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, Boehm titration, PZC, and scanning electron microscopy. This study also analyzed the influence of pH, contact time, absorbent mass, temperature, and contaminant concentrations by means of batch equilibrium assays. It was observed that the OBMi absorbent showed a low dye removal capacity. Maximum OBMm adsorption capacity for RhB and MB at 25 °C was 26.60 mg g −1 and 407.98 mg g −1 , respectively. In both systems, OBMm:RhB and OBMm:MB, adsorption kinetics followed a pseudo-second-order model, and the Langmuir and Freundlich models constituted the best fit for isothermal curves. Lastly, thermodynamic parameters indicated that adsorption of both RhB and MB onto OBMm is spontaneous.
ISSN:2730-647X
2730-647X
DOI:10.1007/s43832-024-00058-0