Two-dimensional (2D) lamellar materials have an appealing prospect in the field of photocatalysis due to their ultrathin thickness and exposed reactive sites. The regulation of photogenerated carrier transfer is more conducive to further enhancing catalytic performance. Herein, a direct Z-scheme 2D/2D heterojunction of ZnIn₂S₄/Ti-BPDC was synthesized using a simple electrostatic self-assembly process. The morphology of the ultrathin lamellar endows the catalyst with more exposed active sites and a short charge transfer distance. The large contact interface and intimate interaction between the two semiconductors ensure a smooth interphase electron transport channel. The matching of staggered band structures provides the basis for constructing an internal electric field and band bending to realize Z-scheme charge transfer. Benefiting from the combined effects of these aspects, ZnIn₂S₄/Ti-BPDC showed substantially enhanced interface photogenerated carrier transfer efficiency and photocatalytic hydrogen evolution performance. Moreover, the 2D/2D ZnIn₂S₄/Ti-BPDC heterojunction possessed excellent stability and recyclability, showing potential for applications in sustainable energy conversion.

二维 (2D) 层状材料由于其超薄的厚度和暴露的反应位点，在光催化领域具有诱人的前景。调控光生载流子转移更有利于进一步提升催化性能。_{在此，ZnIn 2} S ₄的直接 Z 型 2D/2D 异质结/Ti-BPDC 是使用简单的静电自组装过程合成的。超薄层状结构赋予催化剂更多暴露的活性位点和更短的电荷转移距离。两种半导体之间的大接触界面和密切相互作用确保了平滑的相间电子传输通道。交错能带结构的匹配为构建内电场和能带弯曲实现Z型电荷转移提供了基础。得益于这些方面的综合影响，ZnIn ₂ S ₄ /Ti-BPDC 显示出显着增强的界面光生载流子转移效率和光催化析氢性能。此外，2D/2D ZnIn ₂ S ₄/Ti-BPDC异质结具有优异的稳定性和可回收性，显示出在可持续能源转换中的应用潜力。