Background: Pollution in water is of concern because of its negative influence on human health and impact on ecosystems. Three-dimensional (3D) structures in the form of inverse opals and opals-like structures were constructed on a scale of millimeters for their use in the adsorption of heavy metals adsorption on manganese oxide-covered surfaces.

Objective: Manganese oxides both, as commercial powders and as synthesized coatings by the chemical bath method, have a high capacity of lead ions adsorption. The inverse opals and opals-like structures increase the contact area and regulate the flux.

Methods: The chemical bath method was used to coating surfaces of inverse opals and opals-like structures. The size of structures was proposed in millimeters to guarantee an easier flow of water.

Results: The manganese oxide deposits were predominantly constituted by an amorphous phase. The present crystalline forms were identified as γ − MnO₂, ε − MnO₂, Birnessite, and pyrolusite. The best adsorption was obtained with Mn(II, III) and Mn(II), with 91.4% and 80.6%, respectively.

Conclusion: Mn(II, III) and Mn(II) had approximately three times better performance than oxides of Mn(III), Mn(IV), and chemical bath deposited MnO2 in powder form in the lead adsorption.

背景：水中的污染令人担忧，因为它对人类健康和生态系统产生负面影响。以毫米为单位构建了反蛋白石和蛋白石状结构形式的三维 (3D) 结构，用于在锰氧化物覆盖的表面上吸附重金属。

目的：作为商业粉末和化学浴法合成涂层的锰氧化物都具有较高的铅离子吸附能力。反蛋白石和类似蛋白石的结构增加了接触面积并调节了通量。

方法：采用化学浴法涂覆反蛋白石和类蛋白石结构的表面。建议的结构尺寸以毫米为单位，以确保水更容易流动。

结果：锰氧化物沉积物主要由非晶相构成。目前的晶型被鉴定为γ - MnO ₂、ε - MnO ₂、水钠锰矿和软锰矿。Mn(II, III) 和Mn(II) 的吸附效果最好，分别为91.4% 和80.6%。

结论：Mn(II, III) 和Mn(II) 的性能比Mn(III)、Mn(IV) 的氧化物和在铅吸附中以粉末形式沉积的MnO2 的化学浴高约三倍。