STUDY ON PHOTOTHERMAL CHEMICAL REACTION AND HEAT COLLECTION BASED ON AuMgO@TiO2 SPHERICAL SHELL

Jin Junyu; Zhu Xuan; Huang Wenhui; Gao Yuan; Zhang Yanwei

doi:10.19912/j.0254-0096.tynxb.2021-1573

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (5) : 233-238. DOI: 10.19912/j.0254-0096.tynxb.2021-1573

STUDY ON PHOTOTHERMAL CHEMICAL REACTION AND HEAT COLLECTION BASED ON AuMgO@TiO₂ SPHERICAL SHELL

Jin Junyu, Zhu Xuan, Huang Wenhui, Gao Yuan, Zhang Yanwei

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Abstract

The solar energy orderly conversion system has been set up to synthesize hydrocarbon fuel with the high-frequency solar radiation and the low-frequency part is converted into high temperature thermal energy. Based on this system, TiO₂ spherical shell materials loaded with Au and MgO are prepared to transform CO₂ and H₂O through photothermal chemical reaction, and thermal of heat-collection layer is collected by thermal oil. The results show that H₂, CH₄ and CO yield are 30.1, 3.2 and 30.9 μmol/g respectively, and the heat collection efficiency of the system is 39.85%. The characterization results indicate that the spherical shell structure, Au and MgO co-loading improves the light absorption, enhances the photothermal properties, reduces the recombination rate of electron hole pair, generates oxygen vacancies, and promotes the photothermal chemical reaction to reduce CO₂.

Key words

solar energy orderly conversion / photothermal chemical reaction / heat collection / carbon dioxide reduction

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Jin Junyu, Zhu Xuan, Huang Wenhui, Gao Yuan, Zhang Yanwei. STUDY ON PHOTOTHERMAL CHEMICAL REACTION AND HEAT COLLECTION BASED ON AuMgO@TiO₂ SPHERICAL SHELL[J]. Acta Energiae Solaris Sinica. 2023, 44(5): 233-238 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1573

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