Crystalline Porous Organic Salt for Ultrarapid Adsorption/Desorption-Based Atmospheric Water Harvesting by Dual Hydrogen Bond System

Shuai Zhang; Jingru Fu; Saikat Das; Kaiqi Ye; Weidong Zhu; Teng Ben

doi:10.1002/anie.202208660

Crystalline Porous Organic Salt for Ultrarapid Adsorption/Desorption-Based Atmospheric Water Harvesting by Dual Hydrogen Bond System

Angew Chem Int Ed Engl. 2022 Oct 4;61(40):e202208660. doi: 10.1002/anie.202208660. Epub 2022 Sep 1.

Authors

Shuai Zhang^{1

2

3}, Jingru Fu^{1

2

3}, Saikat Das⁴, Kaiqi Ye⁵, Weidong Zhu^{1

2

3}, Teng Ben^{1

2

3}

Affiliations

¹ Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 321004, Jinhua, China.
² Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, 321004, Jinhua, China.
³ Department of Chemistry, Jilin University, 130012, Changchun, China.
⁴ Department of Applied Chemistry, Faculty of Science, Tokyo University of Science Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.
⁵ State Key Laboratory of Supramolecular Structure and Materials, Jilin University, 130012, Changchun, China.

PMID: 35980118
DOI: 10.1002/anie.202208660

Abstract

In recent years, the porous sorbent-assisted atmospheric water harvesting (AWH) method has emerged as an effective approach for solving water crises without geographical restrictions. However, there is a limited array of porous adsorbent materials that can be used for AWH, which are inadequate to meet the needs under different climatic conditions. In light of this, herein, we synthesize a new crystalline porous organic salt (CPOS; denoted as CPOS-6) possessing a dual hydrogen bond system and verify its applicability toward AWH for the first time. Unlike other reported CPOSs, CPOS-6 displays an S-shaped water sorption isotherm owing to the presence of the dual hydrogen bond system. Under simulated drought conditions in Xinjiang Uygur Autonomous Region, CPOS-6 exhibits long-term water adsorption-desorption cycling stability, low water desorption temperature, and ultrarapid adsorption-desorption kinetics. The results confirm that CPOS-6 is an effective sorbent material for AWH.

Keywords: Atmospheric Water Harvesting; Crystal Growth; Crystalline Porous Organic Salts; Multistep Sorption.

Abstract

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