In-situ reduction method was successfully taken out to control the highly reactive (010) facets and decline band gaps in interlining-I/BiOIO₃. It gave a fairly easy way to coordinate the control of bandgap engineering and structural engineering. The interlining-I provided an impurity level served as a plate for photo-generated electron to hop, which expanded the light reaction intensity and displayed excellent photocatalytic performance as well. The as-prepared samples were characterized and estimated for removing gas-phase Hg°. It demonstrated that there existed an optimization of I⁻ to construct a suitable impurity level for effectively separating and transferring electron-hole pairs. The corresponding structural engineering made the internal electric field(IEF) intensify, which was attributed to its increasing exposed surface in favor of obstructing their recombination in the bulk, generating a large number of essential species related to the larger exposed (010) facets to oxidize Hg° into Hg²⁺ under visible light. BI-1 showed the highest efficiency of 92.15%. However, because of the existence of light corrosion, a small part of the iodine ions may be oxidized to elemental iodine to volatilize, fortunately it could be regenerated to the original efficiency in the same preparation method. In addition, the samples with super photocatalytic properties and excellent electron transport properties also gave out a capacious prospect in CO₂ conversion, hydrogen evolution, NO removal, degradation of organic pollutants, also the super capacitors and batteries.

成功地采用了原位还原方法来控制I-BiOIO ₃衬里中的高反应性（010）晶面和下降带隙。它提供了一种相当容易的方法来协调带隙工程和结构工程的控制。夹层I提供了杂质能级，作为光生电子跃迁的极板，扩大了光反应强度并显示了优异的光催化性能。对所制备的样品进行表征并估计其去除气相Hg°的能力。它表明存在对I的优化^-构造合适的杂质水平，以有效地分离和转移电子-空穴对。相应的结构工程使内部电场（IEF）增强，这归因于其暴露表面的增加，有利于阻止其在本体中的重组，产生了大量与较大暴露（010）的小面相关的基本物种以进行氧化Hg°转换为Hg ²⁺在可见光下。BI-1的最高效率为92.15％。然而，由于存在光腐蚀，一小部分的碘离子可能被氧化成元素碘挥发，幸运的是，在相同的制备方法中，碘离子可以再生到原来的效率。此外，具有超强光催化性能和优异的电子传输性能的样品在CO ₂转化，氢释放，NO去除，有机污染物的降解以及超级电容器和电池方面也具有广阔的前景。