【摘要】 文章采用分散聚合法制备聚苯乙烯(PS)模板,磺化后得到磺化的聚苯乙烯模板,在其表面生成开口球形介孔聚苯胺(M-PANI)。采用共沉淀法制备Ag@AgCl,通过化学吸附法制备Ag@AgCl/M-PANI复合材料。通过在可见光下降解罗丹明B(RhB)和苯酚溶液来研究复合材料的光催化性能。结果表明,Ag@AgCl/6%M-PANI复合材料的光催化性能明显高于纯材料M-PANI和Ag@AgCl。光催化性能的提高是由于贵金属的表面等离子共振(surface plasmon resonance,SPR)效应,使光生电荷在AgCl和M-PANI之间的传递和分离效率有所提高。更多还原

【Abstract】 Polystyrene(PS) fine powder consisting of microspheres was prepared by dispersion polymerization, and sulfonated PS microspheres were obtained and used as template to produce mesoporous polyaniline(M-PANI) spherical shell with open pore. Ag@AgCl was synthesized via a modified coprecipitation method, and the composite photocatalysts of Ag@AgCl/M-PANI were prepared by chemisorption method. Their performances on the photocatalytic degradation of RhB and phenol were explored under visible light. The experimental results showed that Ag@AgCl/6% M-PANI hybrids exhibited a superior RhB degradation efficiency than M-PANI and Ag@AgCl. The enhanced catalytic activity is mainly due to the phenomenon of surface plasmon resonance(SPR) of noble metal which can more efficiently enhance charge separation and transportation between AgCl and M-PANI.更多还原