In situ decoration of La(OH)3 on polyethyleneimine-linked dendritic mesoporous silica nanospheres targeting at efficient and simultaneous removal of phosphate and Congo red

La(OH) 3 and polyethyleneimine functionalized 3D dendritic mesoporous silica spheres as novel porous adsorbents efficiently removed phosphate and Congo red. In P/CR binary solution, the formed LaPO 4 promoted the simultaneous adsorptive removal of CR.