【摘要】 目前，TiO₂光催化技术在降解甲醛方面具有广阔的应用前景。采用贵金属掺杂改性法制备了Ti O₂/Ag光催化剂。在可见光条件下考察了Ti∶Ag物质的量比、亚氯酸钠添加量、甲醛浓度对光催化降解甲醛的影响。研究表明:Ti∶Ag物质的量比为10∶1、4 g亚氯酸钠添加量、甲醛浓度为0.16%，在可见光下甲醛降解率最高可达97.7%。随着技术不断进步，TiO₂/Ag光催化剂在治理甲醛污染领域将发挥更重要的作用。更多还原

【Abstract】 Currently, TiO₂ photocatalytic technology holds broad application prospects for formaldehyde degradation. A TiO₂/Ag photocatalyst was prepared using a noble metal doping modification method. The effects of Ti:Ag molar ratio, sodium chlorite dosage, and formaldehyde concentration on photocatalytic degradation efficiency under visible light were investigated. Studies show that the formaldehyde degradation rate can reach up to 97.7%under visible light with a Ti:Ag molar ratio of 10∶1, a sodium chlorite dosage of 4 g, and a formaldehyde concentration of 0.16%. With ongoing technological advancements, TiO₂/Ag photocatalysts will play a more significant role in addressing formaldehyde pollution.更多还原