A core–shell composite CdS-APS@TiO₂ (APS = 3-aminopropyltriethoxysilane) has been prepared by a temperature-programmed hydrothermal method combined with a simple and convenient chemical bath deposition. The form of the product resembles that of a succulent plant. Electrostatic interaction between the water-stable TiO₂ precursor with negative charge and the amino-functionalized petal-like surfaces of CdS is evident. The as-prepared composite adopts the aforementioned succulent morphology with a petal-like structure, surface-coated with TiO₂. Moreover, compared with the CdS precursor, the specific surface area of the as-prepared CdS-APS@TiO₂ composite is increased, and its optical absorption extends into the visible region. The CdS-APS@TiO₂ composite shows high activity in multiple photocatalytic processes, and some activity in photocatalytic hydrogen production (149.2 μmol/g, 8 h). To assess its mode of action, trapping experiments have been carried out by adding various radical scavengers. Possible mechanisms for the photocatalytic degradation of dyes and the photocatalytic splitting of water over the CdS-APS@TiO₂ composite are proposed.

核-壳复合CdS-APS @ TiO ₂（APS = 3-氨基丙基三乙氧基硅烷）是通过程序升温水热法结合简单方便的化学浴沉积法制备的。产品的形式类似于肉质植物的形式。带有负电荷的水稳定性TiO ₂前体与CdS的氨基官能化花瓣状表面之间存在静电相互作用。所制备的复合物采用上述具有花瓣状结构，表面涂覆有TiO _2的肉质形态。而且，与CdS前体相比，所制备的CdS-APS @ TiO ₂的比表面积复合材料增加，并且其光吸收扩展到可见光区域。CdS-APS @ TiO ₂复合材料在多种光催化过程中表现出较高的活性，在光催化制氢中表现出一定的活性（149.2μmol/ g，8 h）。为了评估其作用方式，通过添加各种自由基清除剂进行了诱捕实验。提出了染料在CdS-APS @ TiO ₂复合材料上的光催化降解和水的光催化分解的可能机理。