光助胺基催化作用的研究
發(fā)布時(shí)間：2018-07-16 14:24
【摘要】：為實(shí)施可持續(xù)發(fā)展戰(zhàn)略,使化工生產(chǎn)與資源利用和環(huán)境保護(hù)協(xié)調(diào)發(fā)展,研發(fā)低損耗、低污染、高選擇性的化工生產(chǎn)技術(shù)已迫在眉睫。生物酶催化在光照提供能量的作用下,反應(yīng)過程持續(xù)、穩(wěn)定、高效且符合綠色化工的發(fā)展要求。仿生催化借鑒生物酶高選擇性、高活性、反應(yīng)條件溫和等特點(diǎn),在生產(chǎn)技術(shù)方面顯示出較大的優(yōu)勢(shì)。光照在生物酶催化反應(yīng)過程中扮演著重要的角色,研究光照在酶催化反應(yīng)中的作用,以此作為研發(fā)新型化工生產(chǎn)技術(shù)的突破點(diǎn)。本文從分析常青植物葉片內(nèi)微量元素的含量出發(fā),輔以有機(jī)酸,采用仿生的思路構(gòu)建有機(jī)酸 金屬離子仿生光助催化體系�？疾煸诠庹盏那闆r下,各種影響因子對(duì)所設(shè)計(jì)仿生催化體系的影響作用。同時(shí)考察有機(jī)酸 金屬離子對(duì)仿酶催化過渡態(tài)的影響。植物體內(nèi)存在多種微量元素,它們?cè)谥参锏男玛惔x中發(fā)揮著不同的作用,共同維持植物的生長(zhǎng)。所選植物葉片的組成分析顯示,微量元素的含量差別較大,即便是同一種微量元素,在新葉與老葉中的含量也有明顯差異。含鐵、錳、鋅、銅或硫等微量元素的物種的循環(huán)伏安曲線顯示,在近植物生理?xiàng)l件下,植物體內(nèi)含量較多的微量金屬元素—鐵元素和銅元素的抗氧化性質(zhì)較好。仿生構(gòu)建有機(jī)酸 復(fù)合金屬離子體系,考察光照等影響因素對(duì)有機(jī)酸 復(fù)合金屬離子體系的氧化還原性質(zhì)的影響。結(jié)果表明:銅離子的加入可以使有機(jī)酸 金屬離子體系的氧化還原電位更加穩(wěn)定,但銅離子濃度不易過高;硼酸可以起到穩(wěn)定劑的作用,維持體系的穩(wěn)定;磷酸鹽的適量加入可通過調(diào)節(jié)體系的酸堿值達(dá)到維持體系穩(wěn)定的目的;在光照的影響下,有機(jī)酸能夠發(fā)生變化,但仍可以發(fā)揮絡(luò)合作用。整個(gè)體系可以在光照的存在下,依靠各組成組分的相互影響穩(wěn)定存在。在光照下,有機(jī)酸 金屬離子可加快催化亞胺過渡態(tài)的分解。不同的金屬離子對(duì)光的吸收波長(zhǎng)不同,造成水溶液體系的升溫速率不同,有機(jī)酸 金屬離子可在光照的作用下,提高溶液體系的升溫速率。
[Abstract]:In order to implement the strategy of sustainable development, coordinate the development of chemical production with resource utilization and environmental protection, and develop chemical production technology with low loss, low pollution and high selectivity, it is urgent to develop chemical production technology with low loss, low pollution and high selectivity. Under the action of energy provided by light, the reaction process is continuous, stable, efficient and in line with the development of green chemical industry. Biomimetic catalysis has the advantages of high selectivity, high activity and mild reaction conditions. Light plays an important role in the process of enzymatic catalytic reaction. The role of light in enzymatic catalytic reaction is studied as a breakthrough point in the development of new chemical production technology. Based on the analysis of the contents of trace elements in the leaves of evergreen plants, the bionic photocatalytic system of organic acid and metal ions was constructed with organic acid and bionic acid. The effects of various influencing factors on the bionic catalytic system were investigated. At the same time, the effect of organic acid metal ions on the catalytic transition state of imitating enzyme was investigated. There are a variety of trace elements in plants, they play different roles in plant metabolism, together to maintain the growth of plants. The composition analysis of the selected plant leaves showed that the contents of trace elements varied greatly, and even the same trace elements had obvious differences between the new leaves and the old ones. The cyclic voltammetry curves of species containing trace elements such as iron, manganese, zinc, copper and sulfur show that the trace metal elements, iron and copper, which are more abundant in plants, have better antioxidant properties under near plant physiological conditions. The bionic organic acid and anion complex metal ion system was constructed, and the effect of light and other factors on the redox properties of the organic acid compound metal ion system was investigated. The results show that the addition of copper ion can stabilize the redox potential of organic acid metal ion system, but the concentration of copper ion is not too high, boric acid can act as stabilizer and maintain the stability of the system. The proper addition of phosphate can maintain the stability of the system by adjusting the pH of the system. Under the influence of light, the organic acid can change, but it can still play a complexation effect. The whole system can exist stably in the presence of light, depending on the interaction of the components. Organic acid metal ions can accelerate the decomposition of the transition state of imines under light. The different absorption wavelengths of different metal ions lead to different heating rates of aqueous solution system. The organic acid metal ions can increase the heating rate of solution system under the action of light.
【學(xué)位授予單位】：天津理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：Q811;O644.1
本文編號(hào)：2126671
[Abstract]:In order to implement the strategy of sustainable development, coordinate the development of chemical production with resource utilization and environmental protection, and develop chemical production technology with low loss, low pollution and high selectivity, it is urgent to develop chemical production technology with low loss, low pollution and high selectivity. Under the action of energy provided by light, the reaction process is continuous, stable, efficient and in line with the development of green chemical industry. Biomimetic catalysis has the advantages of high selectivity, high activity and mild reaction conditions. Light plays an important role in the process of enzymatic catalytic reaction. The role of light in enzymatic catalytic reaction is studied as a breakthrough point in the development of new chemical production technology. Based on the analysis of the contents of trace elements in the leaves of evergreen plants, the bionic photocatalytic system of organic acid and metal ions was constructed with organic acid and bionic acid. The effects of various influencing factors on the bionic catalytic system were investigated. At the same time, the effect of organic acid metal ions on the catalytic transition state of imitating enzyme was investigated. There are a variety of trace elements in plants, they play different roles in plant metabolism, together to maintain the growth of plants. The composition analysis of the selected plant leaves showed that the contents of trace elements varied greatly, and even the same trace elements had obvious differences between the new leaves and the old ones. The cyclic voltammetry curves of species containing trace elements such as iron, manganese, zinc, copper and sulfur show that the trace metal elements, iron and copper, which are more abundant in plants, have better antioxidant properties under near plant physiological conditions. The bionic organic acid and anion complex metal ion system was constructed, and the effect of light and other factors on the redox properties of the organic acid compound metal ion system was investigated. The results show that the addition of copper ion can stabilize the redox potential of organic acid metal ion system, but the concentration of copper ion is not too high, boric acid can act as stabilizer and maintain the stability of the system. The proper addition of phosphate can maintain the stability of the system by adjusting the pH of the system. Under the influence of light, the organic acid can change, but it can still play a complexation effect. The whole system can exist stably in the presence of light, depending on the interaction of the components. Organic acid metal ions can accelerate the decomposition of the transition state of imines under light. The different absorption wavelengths of different metal ions lead to different heating rates of aqueous solution system. The organic acid metal ions can increase the heating rate of solution system under the action of light.
【學(xué)位授予單位】：天津理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：Q811;O644.1
【相似文獻(xiàn)】
相關(guān)碩士學(xué)位論文 前1條
1 翟浩;光助胺基催化作用的研究[D];天津理工大學(xué);2016年
，本文編號(hào)：2126671
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