Journal article
Nanostructured carboxylated-wood aerogel membrane for high-efficiency removal of Cu (II) ions from wastewater
Chemical Engineering Journal , Vol.468, pp.1-10
2023
Abstract
Heavy-metal pollution is a significant environmental issue that has raised global concern due to its harmful impact on humans and the natural ecosystem. Heavy metal pollution poses several challenges in terms of remediation, including low adsorption capacity and efficiency, scale-up issues and non-degradability. Here, we developed an eco-friendly tunable dual-wavelength absorption mesoporous wood aerogel (TDWA) for removal of Cu2+ ions from wastewater based on wood nanotechnology and carboxylated functionalization treatment. Nanostructured pores generated from the cell walls with carboxyl groups due to the removal of most lignin/ hemicellulose and 2,2,6,6-tetramethylpiperidine oxidation. Mechanical compression was parallelly applied to the transverse direction of TDWA resulted in removing micron-scale cell cavity and intercellular, which signif-icantly improved the dynamic adsorption performance with an excellent Cu2+ adsorption capacity of 115 mg g-1. This value is superior to most wood-based adsorption membrane as wastewater mainly flowed through the continuous microfibril network in the cell wall. The double-layer mesoporous TDWA membrane (5 mm) possessed a favorable removal efficiency (99.83 %) even after 5-cyclic adsorption (92.34 %). The invented nanostructured TDWA membrane in the current study has promising potential to substitute the present plastic -based membrane in the realistic Cu2+ adsorption because of the facile technology, renewability and high removal efficient, as well as the complete biodegradability.
Details
- Title
- Nanostructured carboxylated-wood aerogel membrane for high-efficiency removal of Cu (II) ions from wastewater
- Authors
- Wen He (Corresponding Author) - Nanjing Forestry UniversityJizhou Cao (Author) - Nanjing Forestry UniversityFeiyu Guo (Author) - Nanjing Forestry UniversityZhihao Guo (Author) - Nanjing Forestry UniversityPeiguo Zhou (Author) - Nanjing Forestry UniversityRui Wang (Author) - Nanjing Forestry UniversityShuang Liang (Author) - Nanjing Forestry UniversityQunyan Pang (Author) - Nanjing Forestry UniversityBairen Wei (Author) - Nanjing Forestry UniversityYue Jiao (Author) - Nanjing Forestry UniversityTripti Singh (Author) - ScionQiliang Fu (Corresponding Author) - Nanjing Forestry University
- Publication details
- Chemical Engineering Journal , Vol.468, pp.1-10
- Publisher
- Elsevier BV
- DOI
- 10.1016/j.cej.2023.143747
- ISSN
- 1873-3212
- Data Availability
- Data will be made available on request.
- Grant note
- This research received the support by single technology research and development of Jiangsu modern agricultural industry, grant number CX (20) 3174. This work is funded by the National Natural Science Foundation of China (no. 32201487), the Natural Science Foundation of Jiangsu province (no. BK20210621), and the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (no. 21KJB220010). Q. Fu thanks the Royal Society of New Zealand Catalyst Seeding grant (no. CSGFRI1901) and Ministry of Business, Innovation and Employment (MBIE) in the framework of the Strategic Science Investment Fund (no. C04X1703, Scion Platforms Plan) for funding this project.
- Organisation Unit
- National Centre for Timber Durability and Design Life
- Language
- English
- Record Identifier
- 99979640302621
- Output Type
- Journal article
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- Domestic collaboration
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- Engineering, Chemical
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