Nanostructure Strengthened Nanofilms Self-Regulating Synthesize Along With The Oil-Water Interface To Fabricate Macroscopic Nanomaterials

Few interfacial assembled or synthesized nanofilms are strong enough to self-support macrostructures. And almost no film prepared by the oil-water interface reaction system has a nanostructure that is hard enough to imprint the interface reaction process. Here, nanostructure strengthened nanofilms were self-regulating synthesized along with the oil-water interface. The oil-water interface is positively charged by cationic surfactants and accumulates OH in the interfacial mixture layer. The nanoparticles are crystallized in the mixture, negatively changed by OH- modified by cationic surfactants, grow and weave into monolithic Zn(OH)(2) nanofoam and silica aerogel, significantly strengthening the nanofilm structural strength and imprinting the nanofilm formation process. With the nanofilm forming, the diffusions are blocked and then isolated, resulting in the mixture expansion gradually slows down and even shrinks to disappear, thereby self-limiting the nanofilm thickness and shaping the complex nanostructure. Macroscopic nanomaterials (2 cm(3)) were prepared by the nanofilm grown along with the bicontinuous emulsion interface. Moreover, the nanofilm is strong enough to maintain the complex structure from nano to macro, thereby the macroscopic nanomaterial demonstrating a low shrinkage of 2.9 % after drying at 70 degrees C and atmosphere pressure. Together with the middle conditions, this provides a simple method to synthesize complex nanostructure strengthened hard nanofilm by the oil-water interface reaction system, which can prepare macroscopic nanomaterials or large nanodevices maintained the designed structure form nano to macro, an ideal bridge to connect nanomaterials and macromaterials.