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Novel ZnWO4 yolk–shell microspheres: interface regulation and high removal efficiency for Pb2+.
- Source :
- CrystEngComm; 7/14/2024, Vol. 26 Issue 26, p3519-3526, 8p
- Publication Year :
- 2024
-
Abstract
- Nanoflake-assembled ZnWO<subscript>4</subscript> yolk–shell microspheres (NFYM-ZnWO<subscript>4</subscript>) with a diameter of 1.5–2 μm and a wall thickness of about 300 nm have been rationally designed and prepared by a facile one-pot method, were composed of numerous nanoflakes (NFs) with a thickness of 10–15 nm and possessed large specific surface areas. The controlled experiments demonstrated that the novel NFYM-ZnWO<subscript>4</subscript> were induced by the synergistic effects of ligands (L -aspartic acid, L -Asp) and mixed solvents (ethylene glycol, EG). Combined with the morphological evolution process, a rational mechanism was proposed to describe the nucleation, self-assembly and Ostwald ripening associated with the formation of NFYM-ZnWO<subscript>4</subscript>. Benefiting from yolk–shell features and large specific surface areas, the as-synthesized NFYM-ZnWO<subscript>4</subscript> were evaluated as adsorbents. With a maximum adsorption capacity of 321.2 mg g<superscript>−1</superscript>, NFYM-ZnWO<subscript>4</subscript> exhibited a high efficiency for Pb<superscript>2+</superscript> removal in aqueous solution, which was over 5 times higher than the nanoparticle-assembled ZnWO<subscript>4</subscript> yolk–shell microspheres (NPYM-ZnWO<subscript>4</subscript>). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14668033
- Volume :
- 26
- Issue :
- 26
- Database :
- Complementary Index
- Journal :
- CrystEngComm
- Publication Type :
- Academic Journal
- Accession number :
- 178163711
- Full Text :
- https://doi.org/10.1039/d4ce00348a