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Metal-Organic Framework Aerogel for Full pH Range Operation and Trace Adsorption of Arsenic in Water
Vetiga Somjit1, Phakawan Thinsoongnoen1, Kunlanat Sriphumrat1
1Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand.
Abstract:
The UiO-66-NH2 aerogel has been designed to remove As(III) and As(V) in the full pH range with a long lifetime. The efficiency of the aerogel for trace removal from river water samples at the sub-ppb level has been demonstrated. The feasibility for practical uses has been evaluated by breakthrough experiments operated at a liquid hourly space velocity (LHSV) of 38 h-1 using a real water sample with a significant capacity of 284 mg g-1. The UiO-66-NH2 aerogel provides a lifetime of over 600 min, which is one of the highest lifetimes among the reported adsorbents for arsenic decontamination.
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