求翻译：在TiO2上进行了Ag的修饰，使样品的吸收带扩展至可见光范围，并且光催化性能大大提高, 在紫外光和可见光下, Ag 摩尔分数为20%的样品表现出最佳的光催化活性.是什么意思？

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In TIO2 on the adornment AG to the absorption of the sample with the extended to visible light and light-catalyzed performance is greatly enhanced and ultraviolet light and visible light, the score is 20 per cent of the moorish ag sample the best out of light-catalyzed active.

Has carried on the Ag beautification on TiO2, makes the sample the absorption band to expand to the visible light scope, and the photochemical catalysis performance enhances greatly, under the ultraviolet ray and the visible light, a Ag mole fraction is 20% sample displays the best photochemical cat

Ag modifier in the TiO2, samples of absorption band extended to visible light and photocatalytic performance greatly improved, in UV and visible light, of Ag molar fraction of 20% samples show the best photo-catalytic activity.

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