本文選題：液相合成 + 銅　； 參考：《湖南大學(xué)》2010年碩士論文

【摘要】： 納米材料以其獨(dú)特的性能和效用,為高新技術(shù)產(chǎn)業(yè)的發(fā)展開辟了一個(gè)全新的技術(shù)領(lǐng)域,在未來的科技發(fā)展中有很大的發(fā)展?jié)摿?納米金屬材料的研究不可忽視。銅作為應(yīng)用廣泛的金屬材料,在納米領(lǐng)域的研究中,以其獨(dú)特的性質(zhì),低廉的價(jià)格,受到國內(nèi)外大量學(xué)者的關(guān)注。本文采用溶液中的還原技術(shù),從各種不同前軀體CuO、[Cu(NH3)4]2+、Cu2(OH)2SO4、Cu(OH)2制備銅、銅基復(fù)合物入手,系統(tǒng)地研究了其制備過程中的影響條件及合成機(jī)理,并且結(jié)合XRD、TEM、SEM、UV-vis等現(xiàn)代物理手段,對(duì)產(chǎn)物的成分,形貌及結(jié)構(gòu)進(jìn)行了分析表征。 前驅(qū)體為CuO時(shí)的樣品經(jīng)XRD表征分析Cu/Cu2O復(fù)合物,SEM表征分析,其為規(guī)則八面體納米籠結(jié)構(gòu),尺寸均一,在200nm左右�？疾炝瞬煌磻�(yīng)因素對(duì)于八面體納米籠形成的影響。經(jīng)過UV-vis分析結(jié)果表明,產(chǎn)物在500nm和600nm左右有吸收峰,說明產(chǎn)物有光學(xué)活性。產(chǎn)物的分散性好,經(jīng)過應(yīng)用性實(shí)驗(yàn)表明,該產(chǎn)物對(duì)有機(jī)染料羅丹明B有一定的降解作用。 在氨水參與的反應(yīng)中,以前軀體[Cu(NH3)4]2+、Cu2(OH)2SO4制備得出的產(chǎn)物,經(jīng)過SEM表征,其形貌為無規(guī)則納米粒子,尺寸在200～500nm之間,說明不同前軀體對(duì)產(chǎn)物的形貌有較大的影響。 在室溫下,采用不同反應(yīng)方式制備銅納米粒子。單滴法樣品經(jīng)XRD表征分析,產(chǎn)物純度極高,經(jīng)SEM表征分析,其形貌接近球形,尺寸在200～500nm之間而雙滴法制備的產(chǎn)物為不規(guī)則形貌,且不同滴加方式制備出產(chǎn)物的純度亦有所不同。由此說明不同的反應(yīng)方式對(duì)于產(chǎn)物的制備有很大影響,包括產(chǎn)物的純度和形貌。
[Abstract]:Nanomaterials, with their unique properties and utility, have opened up a new technical field for the development of high-tech industry, and have great potential in the future development of science and technology. The research of nanomaterials can not be ignored. As a widely used metal material, copper has attracted much attention from many scholars at home and abroad for its unique properties and low price. In this paper, copper and copper based complexes were prepared from various kinds of precursor CuO, [Cu(NH3)4] 2 Cu2OHH4SO4 and CuOH2 by solution reduction technique. The influence conditions and synthesis mechanism of CuO were systematically studied, and modern physical methods such as XRDX TEMSEMvis UV-vis were used. The composition, morphology and structure of the product were analyzed and characterized. The sample with CuO precursor was characterized by XRD and Cu/Cu2O complex. It is a regular octahedron nanocapron structure with uniform size about 200nm. The influence of different reaction factors on the formation of octahedron nanocolages was investigated. The results of UV-vis analysis show that the products have absorption peaks around 500nm and 600nm, indicating that the products have optical activity. The dispersity of the product was good. The application experiments showed that the product could degrade the organic dye Rhodamine B. In the reaction of ammonia water, the product prepared by the former body [Cu(NH3)4] 2 (Cu2OOHf2SO4) was characterized by SEM. The morphology of the product was irregular and the size was between 200~500nm, which indicated that different precursor had great influence on the morphology of the product. Copper nanoparticles were prepared by different reaction methods at room temperature. The single drop method was characterized by XRD and the purity of the product was very high. The morphology of the product was close to spherical by SEM characterization, the size of the product was irregular between 200~500nm and the product prepared by double drop method, and the purity of the product prepared by different dropping method was also different. It is concluded that different reaction modes have great influence on the preparation of the product, including the purity and morphology of the product.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2010
【分類號(hào)】：TB383.1

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本文編號(hào)：1931552