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Journal of Bionic Engineering ›› 2022, Vol. 19 ›› Issue (3): 752-760.doi: 10.1007/s42235-021-00149-x

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Polymer Modified Banana Pseudo Stem-based Interfacial Solar-driven Evaporation System

Vivek Chandran1, Sujith Lal1, Sudip K. Batabyal1,2   

  1. 1 Department of Sciences, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, Tamil Nadu 641112, India  2 Amrita Centre for Industrial Research and Innovation(ACIRI), Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, Tamil Nadu 641112, India
  • Received:2021-10-08 Revised:2021-12-17 Accepted:2021-12-23 Online:2022-05-10 Published:2022-05-05
  • Contact: Sudip K. Batabyal E-mail:s_batabyal@cb.amrita.edu
  • About author:Vivek Chandran1, Sujith Lal1, Sudip K. Batabyal1,2

Abstract: Interfacial solar-driven evaporation technique is an environmental friendly and cost-effective advanced approach for water purification using solar energy. Free energy sources are effectively utilized using the structural design of evaporators and functional materials. In this work, we have fabricated a solar-driven interfacial evaporation device with Banana Pseudo Stem (BPS) and a photothermal layer made up of PVA PDMS Carbon (PPC) is attached to it. High evaporation rate of 2.03 kg m?2 h?1 is achieved by the system under 1 sun illumination. Heat localization on interfacial surface, reflectance of photothermal layer, presence of micro-fluidic channels in BPS were studied using IR imaging, UV-DRS and SEM characterization techniques, respectively. Effective localization of interfacial temperature around 53 °C and very low reflectance of photothermal layer substantiates high photothermal conversion efficiency of the device. The complete purification of water containing high concentration of Rhodamine-B dye using BPS is a novel and simple approach for water purification. This is an eco-friendly, cost-efficient novel approach in fabrication of interfacial solar-driven evaporation system with high evaporation rate for purification of water containing high concentration of organic dye.

Key words: Banana pseudo stem, Polymers, Interfacial evaporator, Biomaterial,  , Water purifcation, High efciency