To fabricate mesoporous photocatalysts with delaminated structures, the exfoliated and layered titanate in an aqueous solution was reassembled in the presence of a Zr-EDTA complex suspension by using an exfoliation-restacking route. Powder X-ray diffraction and HR-TEM clearly revealed that the Zr-EDTA complexes were intercalated into the interlayer of titanate sheets, and the present nanocomposite possessed an enhanced specific surface area (~ 193 m² g⁻¹) with a diameter of 4.32 nm. The XPS and UV–Vis spectra showed interaction between the titanate nanosheets and the guest complex in the pillared system, where in the guest accepted and transported photo-generated carriers, and titanate nanosheets provided active reactive sites. The result nanohybrids exhibited excellent photocatalytic activity in the degradation of methylene blue (MB) under visible-light irradiation, as attributed to the expansion of the surface area, the narrowing of the band-gap, and an ohmic contact of Z-scheme between the guest and the host.

为了制造具有分层结构的中孔光催化剂，通过使用剥落-重堆积途径，在存在Zr-EDTA络合物悬浮液的情况下，将在水溶液中剥落并分层的钛酸酯重新组装。粉末X射线衍射和HR-TEM清楚地表明，Zr-EDTA络合物插入钛酸酯片层的夹层中，并且本发明的纳米复合材料具有提高的比表面积（〜193 m ²  g ^-1）的直径为4.32 nm。XPS和UV-Vis光谱表明，在柱状体系中，钛酸酯纳米片与客体复合物之间存在相互作用，在该体系中，客体接受并运输了光生载流子，而钛酸酯纳米片则提供了活性反应位点。所得的纳米杂化物在可见光照射下对亚甲基蓝（MB）的降解表现出优异的光催化活性，这归因于表面积的扩大，带隙的变窄以及Z方案之间的Z方案的欧姆接触。客人和主人。