Study of Photothermal Conversion Performance Based on Highly Stabilized Aqueous Graphene/Bone Gel Nanofluids
ZHOU Chuanhui1, WANG Xichao1, HE Guodu1, DONG Lan1,2,3, WU Zihua1,2,3, XIE Huaqing1,2,3, WANG Yuanyuan1,2,3,*
1 School of Energy and Materials, Shanghai Polytechnic University, Shanghai 201209, China 2 Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai 201209, China 3 Shanghai Thermophysical Properties Big Data Professional Technical Service Platform, Shanghai 201209, China
Abstract: In the context of the energy crisis, nanofluid photothermal material systems are particularly noteworthy for their ablility to converse solar energy into heat energy.Among these, graphene nanofluid has a great potential for application in photothermal absorption for its high stability.However, graphene tends to agglomerate in base solutions, which limits its broader utilization in graphene nanofluids.This work employed a ball milling method to prepare graphene/bone glue nanocomposites and a two-step method to produce water-based graphene/bone glue nanofluid.The influence of the mass ratio between graphene and bone glue on the stability of these nanofluids was investigated, along with the relationship between mass fraction and photothermal absorption efficiency.The results demonstrated that with a 1∶4 mass ratio of graphene to bone glue, the nanofluid has high stablility, and at a concentration of 0.009%, the naofluid has an excellent photothermal conversion efficiency of 98.46%, which is 24.31% higher than that of deionized water.These findings highlight that graphene/bone glue nanofluids can achieve stable dispersion states while exhibiting superior performance in terms of photothermal conversion.
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2025, Vol. 39 
