Asymmetric hydrophilicity-driven fast water diffusion enabling heterogeneous hygroscopic gels toward high-yield atmospheric water harvest.

Ruiheng Han, Xianzhang Wu, Yuan Zhu, Weiqing Yang, Jianshan Chen, Yan Qing, Peng Xiao, Tao Chen

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Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Ruiheng HanCollege of Materials and Energy, State Key Laboratory of Utilization of Woody Oil Resource, Central South University of Forestry and Technology, Changsha, China.

Xianzhang WuCollege of Materials and Energy, State Key Laboratory of Utilization of Woody Oil Resource, Central South University of Forestry and Technology, Changsha, China. xianzhangwu_js@163.com.

Yuan ZhuCollege of Materials and Energy, State Key Laboratory of Utilization of Woody Oil Resource, Central South University of Forestry and Technology, Changsha, China.

Weiqing YangState Key Laboratory of Advanced Marine Materials, Zhejiang Key Laboratory of Extreme-environmental Material Surfaces and Interfaces, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China.

Jianshan ChenCollege of Materials and Energy, State Key Laboratory of Utilization of Woody Oil Resource, Central South University of Forestry and Technology, Changsha, China.

Yan QingCollege of Materials and Energy, State Key Laboratory of Utilization of Woody Oil Resource, Central South University of Forestry and Technology, Changsha, China.

Peng XiaoState Key Laboratory of Advanced Marine Materials, Zhejiang Key Laboratory of Extreme-environmental Material Surfaces and Interfaces, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China. xiaopeng@nimte.ac.cn.ORCID http://orcid.org/0000-0003-2231-9824

Tao ChenState Key Laboratory of Advanced Marine Materials, Zhejiang Key Laboratory of Extreme-environmental Material Surfaces and Interfaces, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, China. tao.chen@nimte.ac.cn.ORCID http://orcid.org/0000-0001-9704-9545

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hygroscopic polymeric gels hold a promising avenue for sustainable sorption-based atmospheric water harvesting (SAWH). However, conventional designs relying on homogeneous hydrophilic networks face an inherent trade-off: strong hydrogen bond-mediated water retention and osmotic pressure-driven water transport. Here, we propose a strategy to construct heterogeneous structure composed of hydrophilic pectin shell and relatively hydrophobic graphene oxide (GO) sheets core for hygroscopic polymeric organgel integrated with glycerol. The pectin shell acts as a gas-liquid conversion interface, enabling continuous and efficient water condensation. The incorporation of pristine GO interlayers significantly reduces the interaction between adsorbed water molecules and hydrophilic functional groups. This configuration enhances glycerol-enabled osmotic pumping for rapid water transport into storage and supports efficient solar-driven water release. The resulting organgel exhibits a high water uptake capacity ranging from 0.83 to 6.57 g g

Identifiers

PMID41904190

DOI10.1038/s41467-026-71259-5

PMCPMC13195102

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LicenceCC BY-NC-ND

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.