發(fā)布時間：2018-04-28 03:45

  本文選題：羅丹明6G + Schiff堿　； 參考：《鄭州大學(xué)》2015年碩士論文

【摘要】：伴隨著工業(yè)和經(jīng)濟的發(fā)展,全球面臨著一個重要問題:能源缺失。開發(fā)新的可循環(huán)利用的清潔能源迫在眉睫,將太陽能轉(zhuǎn)化為化學(xué)能并有效的儲存起來有著廣闊的研究前景。氫能源是公認(rèn)的清潔能源,作為低碳和零碳能源正在脫穎而出。氫氣具有高熱值,且燃燒后無污染的優(yōu)點,被認(rèn)為終將取代化石燃料而成為未來新能源。全球的科學(xué)家們正在努力解決降低產(chǎn)氫成本和實現(xiàn)產(chǎn)氫工業(yè)化的問題。利用太陽光催化分解水產(chǎn)氫是一個重要的研究方向,關(guān)鍵在于找到一種合適的催化劑。因此,制備出廉價而且高效的催化劑是多年來化學(xué)工作者們從事光催化制氫研究需要解決的一個重要問題。在本論文中,我們設(shè)計并且合成了兩種基于羅丹明6G的Schiff堿類配體L1、L2,之后利用溶劑熱的方法得到了一系列基于非貴金屬(鈷、銅、鎘、鋁)的有機金屬配合物:[Co(L1)2Cl]?DMF(1)、[Co3(L1)2]?DMF(2)、[Co12(L1)6(OH)6(Ac)6]?2DMF?8H2O(3)、[Cu(L2)]?H2O}n(4)、[Co(L2)2]?2H2O(5)、{[Cd(L2)(DMF)(H2O)]?2H2O}n(6)、[Al(L2)2]?Cl?2H2O(7),并通過X-射線單晶衍射分析、元素分析、X-射線粉末衍射、紅外、熱分析等測試手段對該系列配合物的結(jié)構(gòu)和性能進行了表征。我們主要研究了配合物[Co3(L1)2]?DMF(2)和配合物{Cu(Ⅱ)L2}n(4)在可見光條件下分解水產(chǎn)氫中的催化性能。以配合物{Co3(L1)2?DMF}(2)作為催化劑,曙紅Y(EY2-)作為光敏劑,三乙胺(TEA)為電子給體(犧牲劑)構(gòu)建了三組分非均相光催化產(chǎn)氫體系。并且成功實現(xiàn)了可見光催化水分解制氫,同時對構(gòu)建的產(chǎn)氫體系進行了一系列產(chǎn)氫條件優(yōu)化實驗,最大產(chǎn)氫量達到6983μmol/g,體系的產(chǎn)氫壽命達到3個小時。用配合物{Cu(Ⅱ)L2}n(4)作為體系的光催化劑,曙紅Y作光敏劑,三乙醇胺(TEOA)作為電子給體構(gòu)建三組分產(chǎn)氫體系,是首次用金屬銅配合物作光催化產(chǎn)氫體系的催化劑,實現(xiàn)了光催化分解水產(chǎn)氫,通過對產(chǎn)氫條件的優(yōu)化,經(jīng)過5小時光照后,最大產(chǎn)氫量達到197.37μmol,通過一系列實驗證明了銅配合物催化劑的穩(wěn)定性。
[Abstract]:With the development of industry and economy, the world is facing an important problem: energy shortage. It is urgent to develop new clean energy which can be recycled. It has a broad research prospect to convert solar energy into chemical energy and store it effectively. Hydrogen energy is recognized as a clean energy, as low-carbon and zero-carbon energy is emerging. Hydrogen has the advantages of high calorific value and no pollution after combustion. It is considered that hydrogen will eventually replace fossil fuels as a new energy source in the future. Scientists around the world are trying to reduce the cost of hydrogen production and industrialize it. Catalytic decomposition of aquatic hydrogen by solar light is an important research direction, the key is to find a suitable catalyst. Therefore, the preparation of cheap and efficient catalysts has been an important problem for many years in the research of photocatalytic hydrogen production. In this thesis, we have designed and synthesized two Schiff base ligands based on Rhodamine 6G, and then obtained a series of non-precious metals (cobalt, copper, cadmium) by solvothermal method. 閾，

本文編號：1813621