磁性竹炭对酸性红B吸附性能的研究

通过化学共沉淀法制备了MnFe₂O₄-竹炭复合物(MnFe₂O₄-BC)和CuFe₂O₄-竹炭复合物(CuFe₂O₄-BC),并研究了该复合物对酸性红B的吸附性能。结果表明:MnFe₂O₄-BC和CuFe₂O₄-BC具有磁性;CuFe₂O₄-BC对酸性红B具有较强的吸附能力,CuFe₂O₄-BC的用量为每升溶液2 g的样品对初始质量浓度为150 mg/L的酸性红B溶液进行吸附,吸附速度较快,在前30 min时,酸性红B的去除率就达81%,当吸附时间为20 h时,吸附基本达到饱和,其饱和吸附量为33 mg/g;在酸性红B溶液pH值为4.5左右时,最有利于CuFe₂O₄-BC对酸性红B的吸附;酸性红B在CuFe₂O₄-BC上的吸附行为较好地符合Langmuir等温式和Freundlich等温式。     

竹炭对亚甲基兰(MB)吸附的研究

用可见分光光度法研究了竹炭对亚甲基兰（MB）吸附的行为。主要研究了竹炭颗粒大小、吸附时间、pH值、浓度、以及温度对吸附量的影响，并求出其吸附等温方程和动力学方程。     

炭化条件对竹炭结构与吸附性能的影响

以毛竹为原料,利用可控温电阻炉在不同温度和缺氧条件下对毛竹进行炭化,并通过FT-IR、元素分析、BET分析探讨竹材炭化物的组成和微孔尺寸以及孔径分布随炭化温度的变化规律。通过对不同炭化温度的竹炭对水中乙酰甲胺磷的吸附性能研究,考察炭化温度对竹炭吸附性能的影响。结果表明:500℃竹炭开始出现特有的微孔结构,随着温度的升高比表面积增加,800℃时竹炭的比表面积最大;随着炭化温度的升高吸附性能逐渐增强,在900℃炭化3 h的竹炭对乙酰甲胺磷的去除率可以达到88.3%。     

竹炭对含汞废水吸附处理的研究

研究了商用竹炭和改性竹炭对含汞废水的吸附处理条件及效果.以我国饮用水标准中汞的限值0.001 mg·L-1为标准,研究一定浓度及一定量含汞废水处理时,所需吸附剂投料量的估算方法和实验验证结果,为竹炭在含汞废水处理中的应用提供理论依据.结果表明,控制合适的吸附条件,竹炭能有效地去除废水中的汞.     

杏核壳对阳离子染料的吸附研究

本文以杏核壳作为吸附剂,用扫描电镜、红外光谱分析了其表面结构,考察了吸附时间、溶液pH值、染料初始浓度、温度对吸附亚甲基蓝和中性红的影响,并对吸附等温过程和吸附动力学进行了数学模型拟合.结果表明:在染料浓度为50 mg·L-1,吸附剂加入量为6g·L-1,自然pH值,吸附温度25℃,吸附时间为360 min的条件下,杏核壳对亚甲基蓝和中性红有较好的吸附效果,其吸附率都超过90％.Langmuir等温吸附方程能更好地描述杏核壳对两种染料的吸附,准二级动力学模型适合亚甲基蓝的吸附行为,中性红的吸附行为更符合准一级动力学模型.根据红外光谱图及扫描电镜图的分析,可以得出杏核壳对亚甲基蓝和中性红的吸附主要为物理和化学变化共同存在的过程.     

交联壳聚糖树脂对阴离子染料吸附性能的研究

以甲醛-环氧氯丙烷为交联剂,采用反向悬浮法制备了交联壳聚糖树脂(CCTSR).研究了染料溶液初始浓度、时间、pH值和温度等因素对壳聚糖树脂吸附C.I.活性19、C.L活性蓝21、酸性橙II的影响,并探讨了交联壳聚糖树脂对3种阴离子染料的吸附规律.实验结果表明:适宜的酸性条件及较高的染液初始浓度有利于提高CCTSR对三种染料离子的吸附性能;而温度对染料吸附呈现不同的影响趋势.交联壳聚糖树脂对这3种染料的吸附符合Langmuir吸附等温式和Freundlich吸附等温式,吸附动力学模型可以用准二级速率方程来描述.     

Dyes Adsorption from Aqueous Solutions by Chitosan

In this study the ability of chitosan to remove acid, basic, reactive, and direct dyestuffs by adsorption was studied. The effect of several factors influencing dye adsorption such as dye concentration, grain size, pH, and temperature were investigated. Desorption of dyes at different pH was also examined. It was shown that the adsorption capacities of chitosan were comparatively high for acid and direct dyes and that the adsorption was controlled by the acidity of the solution. The kinetics of adsorption were found to be of pseudo second order. Batch isotherm studies showed that adsorption of dyes from aqueous solution by chitosan was described by the Langmuir equation.     

高锰酸钾对印染废水的脱色研究

研究了KMnO4对水体中偶氮蓝、茜素红、酸性铬蓝K、铬黑T和偶氮砷Ⅲ五种染料的脱色作用，结果表明：KMnO4溶液的脱色作用迅速，高效，一般在30min内脱色率能达到90％以上，当用草酸做后处理，还会使脱色效果进一步提高，该工艺用于印染废水处理，平均脱色率在85％左右。     

HCl中有机染料在钢表面的吸附及缓蚀作用

用失重法研究了在1.0 mol/LHCl中5种有机染料——丽春红S(PS)、俾士麦棕Y(BBY)、玫瑰桃红R(BR)、橙黄G(OG)和橙黄IV(OIV)在冷轧钢表面的吸附及缓蚀作用。结果表明:染料PS和BBY具有中等程度的缓蚀作用,且在钢表面的吸附符合Temkin吸附模型;其余3种染料BR、OG和OIV的缓蚀性能较差。5种染料的缓蚀率排序为:PS>BBY>BR>OG>OIV。     

不同性能的活性炭对多种染料的选择吸附

研究以不同种类的活性炭为载体对五种不同工业染料进行选择性吸附。实验条件:分别量取不同染料的标准溶液20 m L在锥形瓶中,并加入0.2000 g左右的不同性能活性炭放在温度为25℃和转速为110 rpm的振荡器中振荡30 min,之后抽滤获取吸附后的溶液,用紫外可见分光光度计来测定其吸附后的吸光度,并计算各种活性炭对不同染料的脱色率。结果表明:FB-1型活性炭对五种不同颜色的染料具有很好的吸附作用,其脱色率都在80%以上。     

天然硅藻土吸附活性染料的热力学研究

研究了天然硅藻土吸附水溶液中两种活性染料活性黑K—RB和活性金黄X—G的吸附特性。结果表明：两种活性染料平衡吸附量都随温度上升而上升,在相同条件下活性黑平衡吸附量大于活性金黄,染料分子的大小、官能团是影响吸附主要因素。两种染料吸附等温线均符合Langmuir和Freundlich方程,表明吸附主要是物理吸附,属于多层吸附。吸附是一个吸热反应△H〉0,自发进行（△G〈0）,AS总是正值,此外,根据实验数据,计算了吸附势E,其值随吸附量增多而减小。     

喷墨墨水用水溶性染料概况

详细表述了国内外喷墨墨水用水溶性染料的开发及生产状况。     

Kinetic and Thermodynamic Studies of the Adsorption of Several Anionic Dyes From Water Samples on Magnetite-Modified Multi-Walled Carbon Nanotubes

In this study magnetite-modified multi-walled carbon nanotubes (MMMCNTs) were used as an adsorbent for the removal of four anionic dyes from aqueous solutions. Batch studies were performed to address various experimental parameters for the removal of these dyes. Kinetic studies showed that the adsorption of dyes on MMMCNTs was almost a rapid process. Quasi equilibrium was reached in 45 min. Pseudo-first-order and pseudo-second-order models were applied to fit the experimental data and the results show that the adsorption of dyes followed the pseudo-second-order kinetic model. The thermodynamic analysis indicates an increase in the temperature resulted in increasing the dyes adsorption capacity of the adsorbent indicating the process to be endothermic.     

有机染料在光存储中的应用研究

综述了有机染料在光存储中的应用;花菁染料具有较高的吸收率和反射率,信噪比也比较高,但光稳定性差;酞菁染料具有较高的热和化学稳定性,但反射率低;偶氮染料具有良好的光学性能、热稳定性、溶解性,具有短的吸收波长,但灵敏度不高.文章还讨论了有机染料作为光存储材料将来的研究发展方向.     

农作物秸秆炭制备速燃炭的研究

以农作物秸秆炭为主要原料制备速燃炭,研究了秸秆炭与引燃剂的比例及成型方式对速燃炭性能的影响,结果表明,农作物秸秆炭与引燃剂质量比为4:3,块状成型方式制备的速燃炭性能较好,其燃烧热为 21289.76 J/g,且 24 g 该速燃炭燃烧时火焰持续 13 min 55 s,火星持续 113 min,燃烧残渣 13.19%。并通过燃烧实验表明, 24 g 速燃炭能使 50 mL 蒸馏水持续沸腾 17 min,且水温在60~80℃ 之间保持 90 min 以上。     

光电功能性有机染料及其应用研究进展

本文论述了不同性能染料的合成方法，尤其是用溶胶-凝胶法合成高分子染料。综述了有机染料在光电功能材料方面的应用及其研究进展，并对光电功能性有机染料今后的发展方向做了展望。有46篇参考文献。     

白竹炭涤纶的染色性能

以普通涤纶为对比,采用3种分散染料对白竹炭涤纶进行染色,探讨了分散染料对白竹炭涤纶的提升性能、动力学以及热力学性能的影响,并计算出分散染料在纤维上的染色速率常数、半染时间和分配系数。结果表明:白竹炭涤纶和普通涤纶的染色特性很相似;白竹炭涤纶的染色速率常数和分散系数稍大于普通涤纶,半染时间比普通涤纶的短。     

芴胺衍生物荧光有机染料的合成

含吸电子或供电子取代基的卤代芴包括溴代芴和碘代芴 ,利用钯催化 ,可在温和的条件下与一胺、二胺及手性胺进行C Ncoupling反应 ,生成相应的芴胺衍生物。该类化合物多为具有很强荧光的荧光染料。     

Synthesis and Characterization of Organic Dyes Containing Various Donors and Acceptors

New organic dyes comprising carbazole, iminodibenzyl, or phenothiazine moieties, respectively, as the electron donors, and cyanoacetic acid or acrylic acid moieties as the electron acceptors/anchoring groups were synthesized and characterized. The influence of heteroatoms on carbazole, iminodibenzyl and phenothiazine donors, and cyano-substitution on the acid acceptor is evidenced by spectral, electrochemical, photovoltaic experiments, and density functional theory calculations. The phenothiazine dyes show solar-energy-to-electricity conversion efficiency (η) of 3.46–5.53%, whereas carbazole and iminodibenzyl dyes show η of 2.43% and 3.49%, respectively.     

Efficient Removal of Anionic Organic Dyes from Aqueous Solution with Cu‐Organic Frameworks

Cu‐metal‐organic frameworks (Cu‐MOFs) were synthesized in one step using copper acetate, glutamic acid, and small‐molecular organic amines at room temperature. Organic amines served as modulators to modify the structure of Cu‐MOFs. Characterization results proved that the addition of modulators changes the surface morphology. Batch adsorption data indicated high adsorption capacities for anionic organic dyes with glutamic‐Cu‐triethylamine (Glu‐Cu‐TA), higher than that of most MOFs reported. An acid pH was the optimum adsorption parameter. The easy regeneration of recycled Cu‐MOFs suggested there were weak intermolecular interactions between Cu‐MOFs and dyes. The main adsorption forces included electrostatic interaction, ion exchange, π‐π complexation, and hydrogen bonds.