So your idea seems plausible at first, but more information leads to the proposed photo molecular effect:
Illumination of hydrogel under solar or visible-spectrum light-emitting diode leads to evaporation rates exceeding the thermal evaporation limit, even in hydrogels without additional absorbers.
Also the absorption of both the water and gel are negligible
This article skips over a few points, heres the paper:
https://www.pnas.org/doi/10.1073/pnas.2312751120?url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org&rfr_dat=cr_pub++0pubmed
So your idea seems plausible at first, but more information leads to the proposed photo molecular effect:
Also the absorption of both the water and gel are negligible