4.7 Article

Hydroxylation of UiO-66 Metal-Organic Frameworks for High Arsenic(III) Removal Efficiency

Journal

INORGANIC CHEMISTRY
Volume 61, Issue 29, Pages -

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.2c01513

Keywords

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Funding

  1. Office of the Permanent Secretary, Ministry of Higher Education, Science, Research and Innovation, Thailand [RGNS 63-251]
  2. Thailand Toray Science Foundation
  3. National Research Council of Thailand (NRCT) [N42A650196]
  4. scientific equipment from VISTEC?s Frontier Research Center (FRC)
  5. Synchrotron Light Research Institute (Public Organization) , Thailand

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Zirconium clusters of UiO-66 have been hydroxylated with NaOH to generate strong binding sites for As(III) species in wastewater treatment, providing high adsorption capacity over a wide range of pH with significantly enhanced uptake.
Zirconium clusters of UiO-66 have been hydroxylated with NaOH to generate strong binding sites for As(III) species in wastewater treatment. Hydroxylated UiO-66 provides high adsorption capacity over a wide range of pH from 1 to 10 with a maximum uptake of 204 mg g(-1), which is significantly enhanced compared to those of pristine UiO-66, acid-modulated UiO-66, and other adsorbents for use in a wide pH range of treatment processes. The local structure of hydroxylated sites and As(III) adsorption mechanism are determined by extended X-ray absorption fine structure combined with density functional theory calculations.

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