高效磷酸银可见光催化剂的制备及脱除NOx的性能研究

摘要

采用不同沉淀剂Na3PO4、Na2HPO4、NaH2PO4通过水相沉淀法制备Ag3PO4产物并考察其可见光催化脱除NOx的性能.结果表明,不同沉淀剂对Ag3PO4产物的晶相组成、形貌、光学性能和光催化活性有显著影响,其中Na2HPO4制备出的不规则状纯相Ag3PO4样品具有更高的光催化脱除NOx的活性.%Ag3PO4 products were prepared with different precipitation agents (Na3PO4,Na2HPO4,NaH2PO4) through the water phase precipitation method,and NOx removal performances of prepared visible light photocatalysts were investigated.The results show that different precipitation agents have remarkable effect on purity,morphology,optical absorption properties and photocatalytic activity of products,and the irregular Ag3PO4 prepared with Na2HPO4 has the best photocatalytic NOx removal efficiency.