Method for preparing core-shell pucherite@mesoporous silica composite material by walnut green husk crude extraction liquid

The invention discloses a method for preparing a core-shell pucherite@mesoporous silica composite material by walnut green husk crude extraction liquid. Rich plant polyphenolic compounds in walnut green husk extracts are used; the kinds of metal ions are regulated and controlled; a pucherite@metal-plant polyphenol complex core-shell structure is synthesized through metal ion and plant polyphenol coordination assembly at the narrow energy gap semiconductor pucherite surface; on the basis, the core-shell pucherite@mesoporous silica composite material is designed and synthesized by a sol gel-calcination method. The prepared pucherite@mesoporous silica core-shell material has regular morphology and good stability; the used raw materials are cheap and can be easily obtained; the synthetized material can be widely applied to the fields of environment protection, catalysis, biological medicine and the like. 本发明公开了种利用核桃青皮粗提液制备核壳型钒酸铋@介孔二氧化硅复合材料的方法,利用核桃青皮提取物中丰富的植物多酚化合物，通过调控金属离子的种类，在以窄禁带半导体钒酸铋表面利用金属离子和植物多酚配位组装合成出了钒酸铋@金属