Ternary heterojunction photocatalyst Ag/AgIO₃/BiOCl and Ag/AgIO₃/BiOCl(CMC) were prepared to solve the contaminants of TC antibiotics residue in water and volatilizing HCHO in indoor air. Morphology modification, heterojunction construction, dominant facet controlling and surface plasma resonance strategies were merged into to modify the photocatalyst. First, biomass solvent assisted synthesis of AABC-CMC does a favor for harvesting the visible light and improving the adsorption of organic pollutants compared to AABC. In addition, Ag nanoparticles (NPs) have been successfully anchored on the surface of heterostructure to enhance the adsorption of visible light, and act as a visible light “trigger” for two wide band gap components of heterojunction. Non-centrosymmetric AgIO₃ and band gap matching in heterostructure accelerates separating and transferring of electron-hole pairs, and reduces the probability of recombination. Besides, the IEF differing in BiOCl(CMC) and BiOCl results the difference of photocarriers migrating path when composited with AgIO₃.The shorter transmission distance in the AABC-CMC reduces the recombination of photocarriers in the bulk and improve photocatalytic property of AABC-CMC. The possible charge transfer mechanism and key radicals differs in photodegradating process, O₂⁻ and OH plays a major role in photo-degrading TC and HCHO, respectively.

制备了三元异质结光催化剂Ag / AgIO ₃ / BiOCl和Ag / AgIO ₃ / BiOCl（CMC），以解决水中TC抗生素残留物的污染物和室内空气中HCHO的挥发。形态修饰，异质结构造，主导面控制和表面等离子体共振策略被合并到一起以修饰光催化剂。首先，与AABC相比，生物质溶剂辅助的AABC-CMC合成有助于收集可见光并改善有机污染物的吸附。此外，Ag纳米颗粒（NPs）已成功锚固在异质结构的表面上，以增强对可见光的吸附，并充当异质结的两个宽带隙成分的可见光“触发”。非中心对称AgIO₃和异质结构中的带隙匹配加速了电子-空穴对的分离和转移，并降低了重组的可能性。此外，BiOCl（CMC）和BiOCl的IEF不同，导致与AgIO ₃复合时光载流子迁移路径的不同。 。可能的电荷转移机制和关键自由基的不同之处photodegradating过程中，Ø ₂ ^-和OH分别起着光降解TC和HCHO了重要作用。