What question did this study set out to answer?

The aim is to develop a porous hygroscopic sorbent for efficient atmospheric water harvesting.

April 10, 2026

A nanoporous hygroscopic pectin-based sorbent for atmospheric water harvesting

Key Points

The aim is to develop a porous hygroscopic sorbent for efficient atmospheric water harvesting.
Developed a biopolymeric sorbent (PTPA) from pectate and polyacrylic acid.
Evaluated water uptake at 99% relative humidity (RH).
Assessed vapor release under solar irradiation.
Measured regeneration efficiency over 120 minutes.
Achieved a water uptake of 3.8 g g-1 at 99% RH.
Exhibited rapid vapor release.
Demonstrated efficient regeneration with solar energy.

Abstract

A porous hygroscopic biopolymeric sorbent (PTPA) composed of biocompatible polysaccharide pectate (PT) functionalised with polyacrylic acid (PA) was developed, exhibiting enhanced water uptake of 3.8 g g-1 at 99% RH and efficient release. The synergistic molecular structure and functional groups of the PTPA enable humidity capture, high storage capacity, rapid vapor release and efficient regeneration within 120 min upon exposure to 1 kW m-2 solar simulator irradiation.

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Authors

Sampan Seth

Indian Institute of Technology Madras

Ankit Nagar

Indian Institute of Technology Madras

Tanmayaa Nayak

Indian Institute of Technology Madras

Journals

Chemical Communications

Actions

Institutions

Indian Institute of Technology Madras

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Building similarity graph...

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A nanoporous hygroscopic pectin-based sorbent for atmospheric water harvesting

Key Points

Abstract

Citation Network

Connected Papers

Discussion

Authors

Journals

Actions

Institutions

References and Citations

Citation Network

Connected Papers

Discussion

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