Preparation and Characterization of an Invasive Plant-Derived Biochar-Supported Nano-Sized Lanthanum Composite and Its Application in Phosphate Capture from Aqueous Media
Article
Article Title | Preparation and Characterization of an Invasive Plant-Derived Biochar-Supported Nano-Sized Lanthanum Composite and Its Application in Phosphate Capture from Aqueous Media |
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ERA Journal ID | 210031 |
Article Category | Article |
Authors | Zong, Enmin, Shen, Yuanyuan, Yang, Jiayao, Liu, Xiaohuan and Song, Pingan |
Journal Title | ACS Omega |
Journal Citation | 8 (15), pp. 14177-14189 |
Number of Pages | 13 |
Year | 2023 |
Publisher | American Chemical Society |
Place of Publication | United States |
ISSN | 2470-1343 |
Digital Object Identifier (DOI) | https://doi.org/10.1021/acsomega.3c00992 |
Web Address (URL) | https://pubs.acs.org/doi/10.1021/acsomega.3c00992 |
Abstract | Invasive plants pose a great threat to natural ecosystems owing to their rapid propagation and spreading ability in nature. Herein, a typical invasive plant, Solidago canadensis, was chosen as a novel feedstock for the preparation of nano-sized lanthanum-loaded S. canadensis-derived biochar (SCBC-La), and its adsorption performance for phosphate removal was evaluated by batch adsorption experiment. The composite was characterized by multiple techniques. Effects of parameters, such as the initial concentration of phosphate, time, pH, coexisting ions, and ionic strength, were studied on the phosphate removal. Adsorption kinetics and isotherms showed that SCBC-La shows a faster adsorption rate at a low concentration and SCBC-La exhibits good La utilization efficiency than some of the reported La-modified adsorbents. Phosphate can be effectively removed over a relatively wide pH of 3–9 because of the high pHpzc of SCBC-La. Furthermore, the SCBC-La shows a strong anti-interference capability in terms of pH value, coexisting ions, and ionic strength, exhibiting a highly selective capacity for phosphate removal. Additionally, Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS) measurements reveal that hydroxyl groups on the surface of SCBC-La were replaced by phosphate and manifest the reversible transformation between La(OH)3 and LaPO4. Considering its high adsorption capacity and excellent selectivity, SCBC-La is a promising material for preventing eutrophication. This work gives a new method of pollution control with waste treatment since the invasive plant (S. canadensis) is converted into biochar-based nanocomposite for effective removal of phosphate to mitigate eutrophication. |
Keywords | Phosphates; Adsorption; Anions; Transmission electron microscopy; Desorption |
Article Publishing Charge (APC) Funding | Project Funding |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 400410. Wastewater treatment processes |
401602. Composite and hybrid materials | |
Byline Affiliations | Taizhou University, China |
Nanjing University, China | |
Zhejiang A & F University, China | |
Centre for Future Materials |
https://research.usq.edu.au/item/yy86v/preparation-and-characterization-of-an-invasive-plant-derived-biochar-supported-nano-sized-lanthanum-composite-and-its-application-in-phosphate-capture-from-aqueous-media
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