Preparation Of Copper Sulfide Nanocomplex And The Enzyme-like Catalytic Property

The thesis aimed at studying the biomimetic catalysis research based on theperoxidase-like properties of CuS. Firstly using biological macromolecules to modifyCuS surface，secondly using simple organic compound as templates to control CuSstructure， and proposed different synthesis methods for CuS nanomaterials，developing the research frontierfieldnanomaterials as enzyme mimetics combinedwith the enzyme-like properties of CuS.CuS nanomaterials with different structuresand excellent performance were synthetizedby using supramolecular self-assemblymethod.This thesis employed bovine serum albumin (BSA) and metal organicframework material (ZIF-8) as macromolecular template，synthesizeduniform particlesize copper sulfide (CuS) and flower-spherelike CuS，respectively.XRD and FESEMwas taken to strengthen the monitoring of the synthesis reaction process，greatlyimproved the synthesis progress of the work and better controlled the reactionconditions.And some morden physical andchemicalmethods like：field emissionscanning electron microscope(FESEM)，transmission electron microscope (TEM)have been further exploited to characterize the nanocrystalline structures of samples，fourier transform infrared spectrum(FT-IR), X-ray photoelectron spectroscopy (XPS)，and the specific surface area test (BET) to describe composition and chemicalcharacteristics of the samples which would be helpful to explain CuS catalyticdegradation mechanism.The results indicated that the spherical flower CuS had bettermicrostructure and enzyme-like catalysisactivity.With mild experimental conditions，BSA template method studied an efficientway to synthesize organic-inorganic hybrid materials by the coordinating interactionof functional groups； And realized CuS surface modification， successfullypreparedCuS nanomaterial with organic complexes characterwhich can’t get byconventional chemical methods, and better controlled the structure and compositionof inorganic nanomaterial，this laid the experimental base for biological moleculesused in the synthesis of nanomaterial. ZIF-8template methodshowed theself-assembly behavior of flower-like structure CuS in the synthetic progress，laid the experimental base to explore the formation of ordered nanoparticlesuperstructuresand application of ZIF materials.By using simple reagents and bionic enzymes simulation methods，this thesisstudied CuS nanomaterials with better catalytic activity and high stability active andbroader applicability than nature HRP enzyme at or near ambient temperature andpressure conditions. For the study of CuS material with efficient catalytic activity，theapplication prospect includes not only achieving low power consumption andefficient catalytic conversion at or near ambient temperature and pressure under mildconditions，but alsomake mimetic enzymes materials find new possibilities inimmunoassays、biocatalysisand environmental treatment.