DataVXACS Applied Materials & InterfacesPaper
journal article·2024-05-22Open access

A Semi-Interpenetrating Network Sorbent of Superior Efficiency for Atmospheric Water Harvesting and Solar-Regenerated Release

Samar N. Abd Elwadood, Andreia S. F. Farinha, Yasser Al Wahedi, Ali Al Alili, Geert-Jan Witkamp, Ludovic F. Dumée, Georgios N. Karanikolos

ACS Applied Materials & Interfaces· Volume 16· Issue 20
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Abstract

High Resolution Image Download MS PowerPoint Slide Water is readily available nearly anywhere as vapor. Thus, atmospheric water harvesting (AWH) technologies are seen as a promising solution to support sustainable water production. This work reports a novel semi-interpenetrating network, which integrates poly(pyrrole) doped with a hygroscopic salt and 2D graphene-based nanosheets optimally assembled within an alginate matrix, capable of harvesting water from the atmosphere with a record intake of up to 7.15 g w /g s . Owing to the incorporated graphene nanosheets, natural sunlight was solely used to enable desorption, achieving an increase of the temperature of the developed network of up to 71 °C within 20 min, resulting in a water yield of 3.36 L/kg S in each cycle with quality well within the World Health Organization standard ranges. Notably, after 30 cycles of sorption and desorption, the composite hydrogel displayed unchanged water uptake and stability. This study demonstrates that atmospheric water vapor as a complementary source of water can be harvested sustainably and effectively at a minimal cost and without external energy input.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersNanomaterialsComposites

OpenAlex topics: Solar-Powered Water Purification Methods · Advanced Sensor and Energy Harvesting Materials · Membrane Separation Technologies

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

Affiliations

Department of Chemical Engineering, Khalifa University, Abu Dhabi 127788, UAE

Center for Catalysis and Separations (CeCaS), Khalifa University, Abu Dhabi 127788, UAE

King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Division of Biological and Environmental Science and Engineering (BESE), Thuwal 23955-6900, Saudi Arabia

Abu Dhabi Maritime Academy, Abu Dhabi Ports, Abu Dhabi 54477, UAE

DEWA R&D Center, Dubai Electricity and Water Authority (DEWA), Dubai 564, UAE

Center for Membranes and Advanced Water Technology (CMAT), Khalifa University, Abu Dhabi 127788, UAE

Research and Innovation Center on 2D Nanomaterials, Khalifa University, Arzanah Precinct, Sas Al Nakhl, Abu Dhabi 127788, UAE

Department of Chemical Engineering, University of Patras, Patras 26504, Greece

Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patras 26504, Greece

Funding

Khalifa University of Science, Technology and Research

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