DataVXACS Applied Polymer MaterialsPaper
journal article·2023-08-11

Bifunctional Hydrogel Membranes for All-Day Freshwater Collection

Jia Xu, Zhaomin Chen, Jiwei Jiang, Bo Song, Hui Zhang, Bin Dong

ACS Applied Polymer Materials· Volume 5· Issue 8
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Source abstract

Abstract

Freshwater crisis is a global problem and seeking more sources of fresh water is the key to solving this problem. Solar water purification and fog collection are two separate ways to obtain fresh water. However, neither of these methods could operate 24/7 when used alone. Herein, we report a hydrogel membrane that can achieve both solar water purification and fog collection, thus enabling all-day freshwater collection. The hydrogel membrane with microstructured patterns inspired by the structure on the back of the Namib Desert beetle consists of poly(vinyl alcohol) (PVA), chlorine-reinforced polypyrrole (PPy-Cl), and silicon dioxide nanoparticles (SiO 2 NPs), which is capable of harvesting up to 25 L of fresh water per square meter per day under the outdoor conditions. The excellent freshwater collection capacity is realized based on the synergetic interaction among the hydrophilicity of PVA, the photothermal conversion capacity of PPy-Cl, and the biomimetic microstructures. Furthermore, due to the improved mechanical properties brought by SiO 2 NPs, the hydrogel-based evaporator reported in the current study has better water resistance as well as mechanical properties, which allows it to be used outdoors for long periods of time and facilitates its practical application.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersNanomaterialsComposites

OpenAlex topics: Solar-Powered Water Purification Methods · Surface Modification and Superhydrophobicity · Solar Thermal and Photovoltaic Systems

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices and State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Soochow University, 199 Ren’ai Road, Suzhou, Jiangsu 215123, China

Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Priority Academic Program Development of Jiangsu Higher Education Institutions · Higher Education Discipline Innovation Project · Suzhou Key Laboratory of Surface and Interface Intelligent Matter · Collaborative Innovation Center of Suzhou Nano Science & Technology · Joint International Research Laboratory of Carbon-Based Functional Materials and Devices · Fund for Excellent Creative Research Teams of Jiangsu Higher Education Institutions · Suzhou Key Laboratory of Functional Nano & Soft Materials

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