Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/162197
Title: Highly selective adsorption and efficient recovery of cationic micropollutants from aqueous solution via ultrathin indium vanadate nanoribbons
Authors: Feng, Han
Liang, Yen Nan
Hu, Chun Po
Hu, Xiao
Keywords: Engineering::Environmental engineering
Engineering::Materials
Issue Date: 2022
Source: Feng, H., Liang, Y. N., Hu, C. P. & Hu, X. (2022). Highly selective adsorption and efficient recovery of cationic micropollutants from aqueous solution via ultrathin indium vanadate nanoribbons. Separation and Purification Technology, 293, 120952-. https://dx.doi.org/10.1016/j.seppur.2022.120952
Project: 04-OI-S-00140-N025 OOE01
Journal: Separation and Purification Technology
Abstract: Seeking adsorbents with high adsorption capacity and ease of regeneration is imperative for environmental remediation. Herein, strongly negatively charged two-dimensional (2D) ultrathin InVO4 nanoribbons (NRs) were synthesized. The material exhibited impressive selective adsorption capabilities towards cationic dyes, and the fitted Langmuir maximum adsorption capacity is 789.7 mg/g when using RhB as a model signal pollutant. The adsorption curve towards Rhodamine B (RhB) fits well with the pseudo-second-order (PSO) reaction. The corresponding adsorption isotherm is confirmed in accordance with the Freundlich model, indicating the adsorption is likely a multi-layer adsorption process. Through examining its adsorption activities with positively charged upconversion nanoparticles (UCNPs) and dyes with different surface charges, the strong electrostatic attraction is found to be the predominant adsorption mechanism. Furthermore, the new adsorbents showed remarkable resilience to even large pH variation (from 3 to 12), and could be rapidly and efficiently regenerated using a mixture of water and ethanol (volume ratio 1:1) in 30 min. These advantages are highly favorable for the application of efficient adsorbents for wastewater treatment and resource recovery.
URI: https://hdl.handle.net/10356/162197
ISSN: 1383-5866
DOI: 10.1016/j.seppur.2022.120952
Rights: © 2022 Published by Elsevier B.V. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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