求翻译：其原因是在适宜聚丁二烯浓度，适宜温度处理适宜时间后，二氧化钛表面包覆着一层具有共轭结构的聚合物，因而降低了二氧化钛的禁带宽度，提高了其在可见光区域的吸收。是什么意思？

Due suitable polybutadiene concentration, suitable temperature suitable time, Titania surface coating layer of polymer with conjugated structures, reducing titanium dioxide of gap, improves its absorption in visible region.

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Its reason is in the suitable polybutadiene density, after the suitable temperature processing being suitable time, titanium dioxide surface gable is having the conjugate structure polymer, thus reduced the titanium dioxide energy gap, enhanced it in the visible light region absorption.

Due suitable polybutadiene concentration, suitable temperature suitable time, Titania surface coating layer of polymer with conjugated structures, reducing titanium dioxide of gap, improves its absorption in visible region.

正在翻译，请等待...