Study on Typical Visible Light Photocatalytic Liquid under the Life Cycle Assessment

With people's increasing demands for the improvement of air quality and quality of life, the demand for new decorative materials with air purification function will be increasing. This study is based on a life cycle assessment (LCA)-based approach to develop a list of resources, energy consumption and pollutant emissions in the life cycle of typical visible light photocatalytic liquid products, to calculate the important environmental impact of visible light photocatalytic liquid products, and to analyze and identify the critical stages affecting environmental performance of product, to guide the selection of green buildings and the development of ecological building materials. The results show that, for the purpose of visible light photocatalytic liquid, the global warming potential is 40.97kgCO 2 equivalent/t, the abiotic depletion potential is 9.34×10 -5 kgSb equivalent/t, the respiratory inorganic index is 7.88×10 -2 kgPM 2.5 equivalent/t, and the eutrophication is 4.13×10 -2 kgPO 4 3- equivalent/t, acidification effect is 0.34kgSO 2 equivalent/t; and the environmental impact in the product life cycle for the purpose of this study are mainly resulted from energy use, and transport process represents the main stage of eutrophication.