Development of flexible bio based porous polyurethane nanocellulose composites for wastewater treatment

A novel method for the synthesis of flexible bio based porous polyurethane is reported in this investigation. Polyol used for the synthesis of polyurethane was derived from soybean oil and nanocellulose were derived from pineapple leaves. Further nanocellulose was surface functionalized by silylatio...

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Bibliographic Details
Main Authors: Chandrashekhar, Akshatha, Gopi, Jineesh Ayippadath, Prabhu, T. Niranjana
Format: Conference Proceeding
Language:English
Subjects:
Adsorption
Cationic dyes
Dyes
Field emission microscopy
Field emission spectroscopy
Fluorescent dyes
Fourier transforms
Infrared spectroscopy
Methylene blue
NMR
Nuclear magnetic resonance
Polymer matrix composites
Polyurethane resins
Rhodamine
Selective adsorption
Soybean oil
Soybeans
Spectrum analysis
Wastewater treatment
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Summary:A novel method for the synthesis of flexible bio based porous polyurethane is reported in this investigation. Polyol used for the synthesis of polyurethane was derived from soybean oil and nanocellulose were derived from pineapple leaves. Further nanocellulose was surface functionalized by silylation. These functionalized nanocellulose was incorporated as filler into the prepared polyurethane matrix to enhance the adsorption efficiency of the polymer nanocellulose composites. The synthesized bio-based polyol from soybean oil, nanocellulose from pineapple leaves and the bio based porous polyurethane nanocellulose composite (BPPUC) were characterized by various analytical techniques such as NMR (Nuclear Magnetic Resonance), FT-IR (Fourier Transform Infrared Spectroscopy), FESEM (Field Emission Scanning Electron Microscopy), and XRD (X-Ray diffraction). Simulated waste water containing Methylene blue (MB, cationic dye), Rhodamine B (RH-B, fluorescent dye) was used to study the adsorption characteristics of the prepared flexible BPPUC using UV-Visible spectroscopy. It was found that the prepared composites showed selective adsorption towards rhodamine B over methylene blue and maximum adsorption capacity for Rhodamine B was found to be 271 mg/g of functionalized nanocellulose.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0022888