Comparative study on sunlight induced surfactants system in photogalvanics for solar energy conversion and storage

Next Sustainability Pub Date : 2025-01-01 DOI:10.1016/j.nxsust.2025.100101

Mohan Lal Mohan, KM Gangotri

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Abstract

The aim of the study is to harness and store solar energy through photogalvanic (PG) cells. The mixed surfactant pairs, i.e., NaLS+Brij-35 and NaLS+Tween-80, with photosensitizer methylene blue and reductant D-xylose have been used for PG cells. The resulting photoelectrochemical process in photogalvanics leads to energy conversion for sustainable development in the field of solar energy. The electrical outcomes, i.e., V_OC, SPP, SPC, SP, and SCE, were studied for a sunlight-induced PG cell for photocatalytic conversion. The observed V_OC, SPP, SPC, SP, and SCE with NaLS+Tween-80 surfactant is of the order of 1120 mV, 867 mV 238.00 µA, 206.34 µW, and 1.3012 %, respectively. The observed V_OC, SPP, SPC, SP, and SCE with NaLS+Brij-35 surfactant is of the order of 1123 mV, 870 mV, 240.00 µA, 208.80 µW, and 1.3112 %, respectively. Conclusively, PG cells with NaLS+Brij-35 surfactant are better than PG cells with NaLS+Tween-80. This new combination of surfactants still has the scope to achieve the enhanced electrical results of PG cells for sustainable development.

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