Nanoporous Zeolitic Imidazolate Framework-8 Nanoparticles for Arsenic Removal
Source abstract
Abstract
Herein, we report a solvent-free self-templating strategy for rapid synthesis of nanoscale hierarchically porous zeolitic imidazolate framework-8 (HP-ZIF-8) with micro-, meso-, and macropores. ZIF-8 crystals were produced in situ on ZnO nanoparticles via vapor deposition of 2-methylimidazole, and hierarchical nanopores were obtained after selectively etching ZnO. ZnO nanoparticles acted as both a Zn source and a meso-/macropore template for HP-ZIF-8. Systematic arsenic adsorption experiments showed that the presence of meso-/macropores can effectively enhance and accelerate arsenic removal via chemisorption. As a result, HP-ZIF-8 exhibited an As(III) adsorption capacity of 104.9 mg/g, nearly double that of traditional ZIF-8 nanoparticles, despite having remarkably more micropores. This study provides a highly adsorbable strategy to fabricate hierarchical porous metal–organic frameworks for pollutant removal.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Arsenic contamination and mitigation · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan430074, China
Hubei Three Gorges Laboratory, 1 Mazongling Road, Yichang443007, China
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan, Xinyang Normal University, Xinyang464000, China
Funding
Ministry of Science and Technology of the People's Republic of China · Science and Technology Department of Hubei Province · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province · Hubei Three Gorges Laboratory Open/Innovation Fund
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