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Nanocellulose-based polyurethane foam adsorbent for pressure-driven dye-contaminated water purification

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Abstract

Dye-contaminated water has caused a worldwide pollution, which is threatening aquatic organisms and human health. In this work, a pressure-driven foam adsorbent (PFA) was bioinspired from the tapestry turban for purifying the dye-contaminated water. The PFA was prepared using an one-step method from nanocellulose (NC), amino-functionalized ZIF-8 (ZIF-8-NH2), and high resilience polyurethane foam (PUF). It was applied to efficiently remove methyl orange (MO) and crystal violet (CV) dyes from dye-contaminated waste solutions. The maximum adsorption capacity of PFA for MO and CV was 225.9 mg/g (25 °C, pH = 2) and 41.6 mg/g (25 °C, pH = 10), respectively, which were acceptable as compared with the reported works. The dyes could be efficiently removed from various river water samples. After 5 cycles, the removal efficiencies of MO and CV decreased from 92.0% and 85.7% to 84.7% and 76.1%, respectively. Moreover, the PFA relied on pressure-driven force to release the purified water under a low pressure.

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Funding

This work was supported by National Natural Science Foundation of China (32101598).

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Xiaobo Huang: Data curation, Writing-original draft. Chongpeng Qiu: Writing—original draft, Conceptualization. Yuanlong Chen: Investigation, Methodology. Xuefeng Zhang: Software, Data curation. Yongze Jiang: Validation, Investigation. Cornelis F. de Hoop: Software, Visualization. Jinqiu Qi: Writing—review & editing, Conceptualization, Supervision. Xingyan Huang: Writing—review & editing, Conceptualization, Supervision. All authors read and approved the final manuscript.

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Correspondence to Xingyan Huang.

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Responsible Editor: George Z. Kyzas

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Xiaobo Huang and Chongpeng Qiu are co-first authors.

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Huang, X., Qiu, C., Chen, Y. et al. Nanocellulose-based polyurethane foam adsorbent for pressure-driven dye-contaminated water purification. Environ Sci Pollut Res 30, 93817–93829 (2023). https://doi.org/10.1007/s11356-023-29098-0

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  • DOI: https://doi.org/10.1007/s11356-023-29098-0

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