Photodecomposition Profile of Curcumin in the Existence of Tungsten Trioxide Particles

2nd International Conference on Innovation in Engineering and Vocational Education

工业技术;教育

Nandiyanto, A.B.D.^1 ; Zaen, R.^1 ; Oktiani, R.^1 ; Abdullah, A.G.^2

Departemen Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no 229, Jawa Barat Bandung

40154, Indonesia^1

Departemen Elektro, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no 229, Jawa Barat Bandung

40154, Indonesia^2

关键词: Experimental methods;    Inorganic materials;    Light illumination;    Light irradiations;    Micro-particles;    Photo-decomposition;    Photo-stability;    Tungsten trioxide;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/306/1/012002/pdf
DOI  :  10.1088/1757-899X/306/1/012002

来源: IOP

【 摘 要 】

The purpose of this study was to investigate the stability of curcumin solution in the existence of tungsten trioxide (WO3) particles under light illumination. In the experimental method, curcumin extracted from Indonesian local turmeric was added with WO3microparticles and put into the photoreactor system. The photostability performance of curcumin was conducted for 22 hours using 100 W of Neon Lamp. The results showed that the curcumin solution was relatively stable. When curcumin without existence of WO3was irradiated, no change in the curcumin concentration was found. However, when curcumin solution was mixed with WO3particles, decreases in the concentration of curcumin was found. The concentration of curcumin with WO3after light irradiation was about 73.58%. Based on the results, we concluded that the curcumin is relatively stable against light. However, its lightirradiation stability decreases with additional inorganic material.