Composite of porous substrate and one-dimensional nanomaterial and method for preparing the same, surface-modified composite and method for preparing the same

摘要

The present invention relates to a composite of a porous substrate and one-dimensional nanomaterial, which is manufactured by a hydrothermal method. The method for manufacturing the composite of the present invention is simple and low-cost, and the one-dimensional nanomaterial is homogeneously distributed on the porous substrate with tight binding at the interface. The present invention also relates to a surface-modified composite and a method for preparing the same. The composite of the present invention which is hydrophobically modified at the surface can adsorb organic solvents such as toluene, dichlorobenzene, petroleum ether and the like, and greases such as gasoline, lubricating oil, motor oil, crude oil and the like, with a weight adsorption ratio of >10.

主权项

1. A method for manufacturing a composite of a porous substrate and a one-dimensional nanomaterial, wherein the porous substrate in the composite is a porous material having a porosity of 70% or above, and the porous material is selected from porous foamed metal, porous foamed plastics, alloy, organic substance or ceramics, and metallic skeleton with three-dimensional network of pores of 100 nm to 1 mm, the method comprising:
1) immersing the porous substrate in a catalytic seed solution, and sonicating for 1-180 min; 2) drying the soaked porous substrate obtained in step 1), and annealing at 200-500° C. for 1-180 min; and 3) immersing the substrate obtained in step 2) in a growth solution to obtain the composite of the porous substrate and the one-dimensional nanomaterial.