白腐菌ZJ-6的筛选及对合成染料的脱色研究

从我国生物资源中筛选出一株白腐真菌ZJ-6,确定了其生长条件,实现了扩大培养,并研究了ZJ-6对4种难降解染料的脱色效果.试验结果表明,ZJ-6对甲基橙的脱色效率超过90%,对刚果红和次甲基蓝脱色效率达85%左右,对结晶紫的脱色效率在70%左右.白腐真菌对染料脱色的同时,自身能够繁殖生长.白腐菌ZJ-6对合成染料脱色的机理包括生物降解和菌体吸附两方面.     

Kinetics of Hydrolysis of Cationic Reactive Disperse Dyes Containing Quaternary Group

The kinetics of hydrolysis of cationic reactive disperse dyes containing quaternary group and chemical shift（13CNMR） of the adjacent carbon atoms with pyridine-acetylamino were discussed. The results show pyridine-acetylamino reactive group had higher reactivity than chloroacetylamino and chemical shift（13 CNMR） of the adjacent carbon atoms with pyridine-acetylamino moved 18.77 ppm.     

Fluorescence Spectral Study on the Rhodamine B- I3^- Association Nanoparticle System and Its Analytical Applications

In acid medium, rhodamine B（RhB）, rhodamine S（RhS）, rhodamine 6G（RhG） and butyl rhodamine B（b-RhB） have a fluorescence peak at 580, 549, 553 and 580nm, respectively. BrO^-3 oxidizes excess I^- into I^-3 Rhodamine dyes combine I^-3 to form ion association nanoparticles, resulting in fluorescence quenching at 580, 549, 553 and 580 rim, respectively. The fluorescence quenching intensity is proportional to the concentration of BrO^-3 in the range of 0.020 4 - 0.710 μg/mL for RhB, 0.025 - 0. 512μg/mL for RhS, 0.025 - 0.260 μg/mL for RhG, 0.025 - 1.28μg/mL for b-RhB, respectively. In the four systems, RhB system has good stability and high sensitivity. Thus, a simple, sensitive fluorescence method was proposed for the determination of BrO^-3 in commercial bread additives and flours, with satisfactory results. The results of the fluorescence spectra and scan electron microscopy show that the formation of about 60 ran （RhB - I^-3） n association nanoparticles and the interface between the nanoparticles and solution are main factors that cause the fluorescence quenching.     

对甲氧基苯乙烯基染料的微波促进合成

目的研究快速合成对甲氧基苯乙烯基染料的合成方法。方法在微波促进下，以2-烷基或4-烷基取代的杂环碱或杂环季铵盐和对甲氧基苯甲醛为原料，在催化剂作用下合成一系列对甲氧基苯乙烯基染料，并用元素分析，^1HNMR，MS，IR，UV—vis确证产物的结构。结果合成所需时间短、产率高。结论提供了一种快速合成对甲氧基苯乙烯基染料的有效方法。     

一种联二萘类功能性发光共聚物

为克服聚合物电化学发光池(LECs)中极性离子传导性聚合物与非极性发光聚合物两相分离的矛盾,设计合成了一种聚合物分子主链上同时含有发光链段与离子传导性候车室段的联二萘功能性发光共聚物EO-PN,用多种手段对其结构进行了表征,并测试了其光致发光性能,EO-PN的热分解温度高达390℃,可以方便的采用旋涂或熔融的方法成膜,实验发现EO-PN是一种紫色发光材料,其光致发光最大发射峰位于395nm.     

Application of Acid Dyestuffs with Different Molecule Structure in Combined Dyeing and Finishing of Cotton Fabric

Simultaneous dyeing and durable press finishing of cotton fabrics with acid dyes bearing the different molecule structure and durable press finishing agent （DP agent abbr. ） based on modified DMDHEU were investigated by using the pad-dry-cure process. Some factors affecting the process, such as structure of acid dyes, DP agent, catalysts and curing temperature were discussed. The dyed and finished fabrics were evaluated with respect to color strength, fixation, crease recovery angle, breaking strength and fastness properties. The results indicate that structure of acid dyes has a striking effect on the color strength of dyed and finished cotton fabric. The color strength and dry crease recovery angle of dyed and finished cotton fabric increases, whereas breaking strength decreases with increasing concentration of DP agent. It is necessary for ammonium nitrate to serve as catalyst. It is found that relatively satisfactory properties of dyed and finished cotton fabric can be obtained with appropriate adjustment of treating conditions.     

离子液体改性苎麻纤维性质研究

讨论几种1甲基，3-烷基咪唑-氟硼酸类离子液体在苎麻纤维整理上的应用，用IR对整理的苎麻纤维进行了分析，发现BMIBF4，HMIBF4，OctMIBF4，DMIBF4几种离子液体可以吸附到纤维表面并渗透到纤维里面降低苎麻纤维的结晶度。同时研究了整理过的苎麻纤维的染色性和整理效果，其染色性如上染率．匀染性和透染性郝增加了，而在整理效果方面，其手感．剌痒感和易脆性也得到了改善。     

悬浮态TiO2光催化降解偶氮染料中性深黄GL

采用紫外杀菌灯作为光源,以悬浮态TiO2为光降解催化剂进行了偶氮染料中性深黄GL的光催化降解研究.讨论了体系的pH值、催化剂的投入量、通气量以及起始浓度等因素对光催化降解中性深黄GL效率的影响.结果表明中性深黄GL的光催化降解适宜条件为pH=2.00;催化剂的投入量为1.4 g/L;通气量为300 mL/min.光降解100 min,脱色率可达96%,降解后的染料已基本无色.动力学研究表明中性深黄GL的光催化降解符合一级动力学规律.在λ=436 nm处,中性深黄GL的光最大降解速率Kdmax=一1.364 3 mg/(L@min),催化降解的表观反应速率常数k=0.026 8 min-1.     

Study of ionizable drugs transfer across the water/1,2-dichloroethane interface with phase volume ratio equal to unity using a three-electrode system

In the past few decades, much attention has been paid to the experimental and theoretical investigations of electrochemical processes at the interface between two immiscible electrolyte solutions (ITIES). This is mainly due to the potential applications these systems have been found in chemistry and biology, such as phase-transfer catalysis, analysis with chemical sensors, drug lipophilic-ity and its consequences to drug delivery, and mimicking biological membranes[1,2]. Compared with the m…     

非离子表面活性剂存在下过氧化氢对木素过氧化物酶的抑制动力学研究

研究表面活性剂水溶液体系中木素模型化合物的酶法降解机制具有重要意义．本文用动力光度技术研究了非离子表面活性剂TritonX-100(TNX)存在下过氧化氢对木素过氧化物酶(LiP)的抑制作用．结果表明，该抑制作用属可逆竞争抑制．TNX的存在使H2O2的抑制作用加强，抑制常数Ki值下降．Ki值随TNX浓度(远低于、接近于和远大于其临界胶束浓度)变化很小这一结果表明起主导作用的是TNX单体，上述结果应该是有限数目的表面活性剂单体对酶蛋白分子的修饰所致．