读后总结: Aqueous dispersion of nanobubbles: Generation, properties and features
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- Nanobubbles: high stability, longevity and high surface area per volume,rapid attachment to hydrophobic surfaces
- 150-200nm (mean diameter) NBs and MBs-microbubbles (about 70μm)
- The NBs mean diameter and concentration only slightly varied within 14 days.
- After the NBs were attached to the surface of a gain of pyrite, the NBs dramatically increased the population of
MBs, which shows the enhancement of particle hydrophobicity due to NBs
adhesion. 这里的描述有点像另一篇文献(Role of hydrodynamic cavitation in
fine particle flotation)里的第二种气泡附着机理。

- Experimental evidence of NBs was provided by Miller et al. (1999), who used RTIR spectroscopy to incestigate the n-butane-saturated water at a hydrophobic silicon solid.
- 此文章中对 NB 的定义超过了 100nm,
ten to hundreds of nanometers in radius - AFM images revealed that they form spherical caps, but the precise shape of the NBs remains unclear
bulk NBs到底什么意思???- DI water at 23℃±1: \(3μS\cdot cm^(-1)\) conductivity, \(72.5±0.1mN\cdot m^(-1)\) surface tension, natural equilibrium pH of 5.5 # Chemikalien
- blue methylene
dye as the contrast medium | 亚甲蓝
- α-Terpinol| 松油醇
(Hao 的实验里用的是 pine ole/Pineöl,需要思考两种起泡剂的区别)
Minerals
- pyrite(fairly hydrophobic mineral)| 黄铁矿
Messtechnik used in this article
- Fourier transform infrared(FTIR)
- Atomic Force Microscope(AFM)
- Light scatting
- resonant mass mearsurement
- ZetaSizer Nano instrument, which uses Laser Doppler Micro-electrophoresis
- Nanoparticle-tracking analysis: NTA
- ZetaSizer Nano ZS
Zusammenfassung
Nanobubble 非常稳定,而且 NBs 的存在会非常明显的提高 Microbubble 的附着能力,在 flotation 中很值得一用!
Vokabeln
| Vokabeln | Übersetzung |
|---|---|
| dramatically | 引人注目地 |
| notably | 显著地 |
| sustainable | 可持续的;不破坏生态的 |
| immerse | 沉浸于 |
| aqueous | 水态的 |
| gaseous | 气态的 |
| submerge | 完全掩盖 |
| affinity | 吸引力 |
| void | 空间 |
| readily | 容易地 |
| joint | 连接 |
| circumstance | 环境 |
| presumably | 据推测 |
| Deionized(DI) water | 去离子水 |
| tap water | 自来水 |
| resin | 树脂 |
| abundant | 大量的,充足的 |
| rinse | 冲洗,漂洗 |
| saline | 含盐的 |
| buoyancy | 浮力 |
| magnification | 放大率 |
| sterile syringe | 无菌的 注射器 |
| tip | 尖端 |
| shutter | 快门 |
| arithmetically | 算术上的 |
| duplicate | 两 - (见下) |
| triplicate | 三 -(见下) |
| quadruplicates experiments | 四组重复实验 |
| disposable | 一次性的 |
| aforementioned | 前面提到的 |
| styrofoam | 泡沫聚苯乙烯 |
| chronometer | 精密计时器 |