Here, we reported the self-templated preparation of an allyl-containing, internally hollow, spherical COFs. Various factors affecting the formation of hollow spherical COF_a-2 were investigated using diverse spectroscopic and microscopic techniques. Detailed time-dependent studies revealed a continuous transition of COF_a-2 catalyst from an initial solid spherical structure to a homogeneous hollow spherical system by an Ostwald maturation mechanism. In addition, the effects of precursors with different structures on the photoelectric properties and photocatalytic degradation of RhB of the prepared COF_a-1, COF_a-2 and COF_a-3 were also studied. Results have shown that allyl can effectively improve the response of COF_a-2 to visible light and the degradation ability of RhB. Furthermore, allyl-palladium (COF_a-2@Pd²⁺) formed by the coordination of palladium ions with allyl can effectively catalyze the Suzuki coupling (TOF = 16 × 10^-4) and the reduction reaction of p-nitrophenol (K_app = 1.56 min⁻¹). More importantly, the catalysts COF_a-2 and COF_a-2@Pd²⁺ showed high stability after being recycled 10 times.

在这里，我们报道了一种含烯丙基的内部空心球形 COF 的自模板制备。使用不同的光谱和显微技术研究了影响中空球形 COF _a-2形成的各种因素。详细的时间相关研究表明，COF _a-2催化剂通过奥斯特瓦尔德成熟机制从初始的实心球形结构连续转变为均匀的空心球形体系。此外，不同结构的前驱体对制备的COF _a-1、COF _a-2和COF _{a-3的光电性能和光催化降解RhB的影响}也进行了研究。结果表明烯丙基能有效提高COF _a-2对可见光的响应和RhB的降解能力。此外，钯离子与烯丙基配位形成的烯丙基钯（COF _a-2 @Pd ^{2+ ）可有效催化Suzuki偶联（TOF = 16 × 10 -4}）和对硝基苯酚的还原反应（K _app  = 1.56 分钟^-1 )。更重要的是，催化剂COF _a-2和COF _a-2 @Pd ²⁺在循环使用10次后表现出较高的稳定性。