Multidimensional hierarchical hollow Co₃O₄/ZnIn₂S₄ tubular core–shell heterostructures were prepared by growing ultrathin two-dimensional ZnIn₂S₄ nanosheets on one-dimensional hollow Co₃O₄ nanotubes by a simple solvothermal method. The design of this multidimensional hollow core–shell heterostructure not only avoids the self-assembly aggregation of ZnIn₂S₄ nanosheets but also broadens their light-absorption range and improves the utilization of visible light. The internal electric field formed by the p–n heterojunction in the photocatalyst can promote the separation and migration of photogenerated e⁻ and h⁺ species, and therefore the recombination of photogenerated carriers can be effectively suppressed.

采用简单的溶剂热法，在一维中空Co ₃ O ₄纳米管上生长超薄二维ZnIn ₂ S ₄纳米片，制备多维分级中空Co ₃ O ₄ /ZnIn ₂ S _{4管状核壳异质结构。}这种多维空心核壳异质结构的设计不仅避免了ZnIn ₂ S _{4的自组装聚集}纳米片还拓宽了它们的光吸收范围，提高了可见光的利用率。光催化剂中p-n异质结形成的内电场可以促进光生e-和h ^{+物质的分离和迁移，}从而有效抑制光生载流子的复合。