Instead, titanium dioxide, a naturally-occurring mineral creates a micro-fine barrier on your skin to reflect the sun's harmful rays. 二氧化钛是天然构成的矿物质元素,它能在您肌肤概况构成微小而好的防护膜,以此来折射有害射线。
The absorption spectra of nanocrystalline titanium dioxide is in the ultraviolet ( UV) region, so the principal deficiency is less utilization of the sun's rays. 二氧化钛半导体的光催化吸收波长范围在紫外区,利用太阳光的比例低。