FTIR, BET, and DTA of materials and effects of parameters to isolate cellulose fibers from reed
Data files
Aug 19, 2024 version files 5.95 MB
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Figures.zip
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README.md
Abstract
This study focused on fabricating a cellulose aerogel for efficient oil spill clean up, using common reed (Phragmites australis) as the cellulose source. The process involved isolating cellulose from reed via traditional Kraft pulping, considering the effects of key factors on the isolated cellulose content. After a two-stage HP bleaching sequence, the highest cellulose content achieved was 27.2%, with 80% ISO brightness and 1% ash content under mild Kraft pulping conditions of 30% sulfidity, 20% active alkali, sustained cooking at 165°C for 3 hours, and a liquor-to-reed ratio of 8:1. Subsequently, reed-based cellulose aerogel was fabricated via a freeze-drying method using an eco-friendly NaOH/PEG aqueous solvent system, which was then modified with methyltrimethoxysilane (MTMS). The resulting aerogel exhibited remarkable characteristics, including a low density of 0.04 g/cm³, high porosity of 96%, super hydrophobicity with a water contact angle (WAC) of 141°, and a superior crude oil adsorption capacity of 35 g/g. Comprehensive characterizations of the fabricated materials, including SEM, FTIR, TGA/DSC, and WAC measurements, were evaluated. This interdisciplinary study explores the commercial promise of reed-based cellulose aerogel as a sustainable solution for oil spill clean-up efforts.
README: FTIR, BET, and DTA of materials and effects of parameters to isolate cellulose fibers from reed
The associated supplementary file consisted of data visualisations and tabular representations that provided evidence and validated the debates and outcomes, as explained in the next section. Figure 1S to 3S display FT-IR spectra of cellulose extracted from reed (RC), cellulose aerogel derived from reed (RCA), and cellulose aerogel coated with MTMS (RCA_MTMS). Figures 4S to 6S display the differential thermal analysis (DTA) results of three different samples: isolated cellulose (RC), reed-based cellulose aerogel (RCA), and MTMS-coated cellulose aerogel (RCA_MTMS). Figures 7S to 8S display the BET results of two types of cellulose aerogel: reed-based cellulose aerogel (RCA) and MTMS-coated cellulose aerogel (RCA_MTMS). Figures 9S to 10S depict the water contact angle (WCA) of the cut surface and external surface of RCA (recycled concrete aggregate). Tables 1S to 4S display the impacts of parameters such as sulfidity, active alkali, L:W ratio, and boiling time on the isolation of cellulose fibres, respectively.
- Figure 1S. The FTIR spectrum of isolated cellulose from reed (RC).
- Figure 2S. The FTIR spectrum of reed-based cellulose aerogel (RCA)
- Figure 3S. The FTIR spectrum of MTMS-coated cellulose aerogel (RCA_MTMS)
- Figure 4S. The DTA/DSC of isolated cellulose (RC)
- Figure 5S. The DTA/DSC of reed-based cellulose aerogel (RCA)
- Figure 6S. The DTA/DSC of MTMS-coated cellulose aerogel (RCA_MTMS)
- Figure 7S. The BET result of reed-based cellulose aerogel (RCA)
- Figure 8S. The BET result of MTMS-coated cellulose aerogel (RCA_MTMS)
- Figure 9S. WCA of RCA’s the cut surface
- Figure 10S. WCA of RCA’s external surface
Experiment Plan.xlsx
- Table. 1S. Effect of Sulfidity on Isolated Cellulose
- Table 2S. Effect of Active Alkali on Isolated Cellulose
- Table 3S. Effect of L:W ratio on isolated cellulose
- Table 4S. Effect of cooking time on isolated cellulose
Methods
Experiment chemistry at scale up, collected data, testing physial chemistry and applying in crude oil absorption.