Self-Cleaning limestone paint modified by nanoparticles TiO2 synthesized from TiCl3 as precursors and PEG6000 as dispersant

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Abstract

Limestone is commonly used for wall painting, but it is easy to be dirty. In this study, a self-cleaning limestone paint was synthesized by modifying dispersant and TiO2 nanoparticles. The TiO2 that prepared by TiCl3 were functionalized with PEG6000 as a surface activating agent. The paint achieved highest impurity degradation of 83.11 % for the mass ratio of TiO2 and PEG6000 (MRTP) of 1: 6, in which TiO2 average size distribution was 75.81 μm2, the particle surface area of TiO2 was 2,544 μm2, and the smallest contact angle was 7°. It was found that the dispersant (PEG6000) significantly improved the self-cleaning ability of limestone paint. The surface tension reduction from PEG6000-modified prevented the agglomeration process of TiO2 and suggests that the limestone paint a good self-cleaning coating for wall painting.

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Fadhilah, N., Etruly, N., Muharja, M., & Sawitri, D. (2017). Self-Cleaning limestone paint modified by nanoparticles TiO2 synthesized from TiCl3 as precursors and PEG6000 as dispersant. Bulletin of Chemical Reaction Engineering and Catalysis, 12(3), 351–356. https://doi.org/10.9767/bcrec.12.3.800.351-356

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