【摘 要】
：
该论文主要研究在单分子膜下沉积金属,并通过SEM对其进行表征.以银氨溶液和酒石酸钾钠溶液作为镀液的主要成分,在气/液界面硬脂酸单分子膜上化学沉积了金属银.论文考察了溶剂
论文部分内容阅读
该论文主要研究在单分子膜下沉积金属,并通过SEM对其进行表征.以银氨溶液和酒石酸钾钠溶液作为镀液的主要成分,在气/液界面硬脂酸单分子膜上化学沉积了金属银.论文考察了溶剂类型、镀液浓度、镀液配比、单分子膜表面压等对银膜质量的影响,确定了最佳实验条件为：银氨溶液浓度为0.05mol/L,酒石酸钾溶液浓度为0.15mol/L,二者以体积比1：2混合,然后在其上滴加浓度为0.1mg/ml硬脂酸的氯仿溶液,单分子膜表面压为25mN/m～35mN/m.从SEM照片上可以看出,所得银膜表面光滑、细致、均匀.TEM测试结果表明银膜为面心立方结构.控制反应时间可以得到纳米厚度银薄膜.实验中发现,当镀液表面无单分子膜在存在十八醇单分子膜时,镀液表面无银的化学沉积,沉积只发生在带负电性较强的硬脂酸单分子膜上.通过改变十八醇和硬脂酸混合成膜物的比较,获得了不同形貌的银膜.
其他文献
Macau Peninsula wastewater treatment plant(WWTP)is experiencing filamentous bulking in recent years,which is caused by overgrowth of filamentous bacteria ov
在中国水墨人物画的发展历史中,其于不同时代和不同地域环境下所表现出的丰富性和多样性值得关注。时至现当代,随着中国近两百年来复杂的社会形态更迭,伴随西方科学技术和人
While the temperature and initial turbidity of the raw water greatly impact the particle collision probability,aggregation rate and rate constant in floccul
There are various forms of impurities present in municipal sewage,such as fibres,hairs,plastic debris and kitchen scraps.Due to their smaller size (less than 1
Membrane based technologies are widely used in wastewater and drinking water applications andwill further expand its position in water treatment technologies in
A major cost of current reverse osmosis installations belongs to pretreatment,especially when using surface water as feed.Although,the reverse osmosis elements
A new flocculation tester was developed,by attaching a photo-coupler and switch timer to the conventional jar tester.Byrepeatingthe ON-OFF of the mixer switch i
Tanning processing is by nature a huge producer of wastewater highly concentrated with chemical and organic compounds,some of them recalcitrant.The conventi