Related Experiment Video
Updated: Apr 9, 2026
Deposition of Porous Sorbents on Fabric Supports
Published on: June 12, 2018
A nanoporous hygroscopic pectin-based sorbent for atmospheric water harvesting
Sonali Seth1, Ankit Nagar1, Tanmayaa Nayak1
1DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India. pradeep@iitm.ac.in.
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.
