scholarly journals Determining the dispersion stability of black phosphorus colloids by 3D light scattering

2019 ◽  
Vol 9 (2) ◽  
pp. 423 ◽  
Author(s):  
Xinying Ding ◽  
Zhan Wei ◽  
Ying Chen ◽  
Pengcheng Lin ◽  
Qi Yan ◽  
...  
Keyword(s):  
Light Scattering ◽  
Black Phosphorus ◽  
Dispersion Stability

Dispersion, stability and size measurements for cellulose nanocrystals by static multiple light scattering

Cellulose ◽  
2018 ◽  
Vol 25 (10) ◽  
pp. 5751-5768 ◽  
Author(s):  
Mahyar Mazloumi ◽  
Linda J. Johnston ◽  
Zygmunt J. Jakubek
Keyword(s):  
Light Scattering ◽  
Cellulose Nanocrystals ◽  
Dispersion Stability ◽  
Multiple Light Scattering

Surface modification of iron oxide (Fe2O3) pigment particles with amino-functional polysiloxane for improved dispersion stability and hydrophobicity

2014 ◽  
Vol 43 (4) ◽  
pp. 219-227 ◽  
Author(s):  
Sushilkumar A. Jadhav ◽  
Roberta Bongiovanni ◽  
Daniele L. Marchisio ◽  
Daniela Fontana ◽  
Christian Egger
Keyword(s):  
Surface Modification ◽  
Iron Oxide ◽  
Light Scattering ◽  
Photoelectron Spectroscopy ◽  
Particle Surface ◽  
Dispersion Stability ◽  
Spectroscopic Techniques ◽  
Concentrated Suspensions ◽  
Inorganic Pigment ◽  
Content Type

Purpose – The purpose of the present study is to use an amino-functional polysiloxane for the surface modification of red iron oxide (Fe2O3) pigment particles for their improved dispersion stability and hydrophobicity and to study the chemical interactions of polysiloxanes with the particle surface. Design/methodology/approach – Surface-treated red Fe2O3 pigment particles were prepared by treatment of the particles with different quantities of the (aminopropylmethylsiloxane)-dimethylsiloxane copolymer in concentrated suspensions in water. The samples were analysed with different instrumental and spectroscopic techniques to study the interaction of the polysiloxane with the particle surface and the effect of the surface treatment of the particles on their dispersion stability and hydrophobicity. Findings – Chemisorption of the amino-polysiloxane onto the surface of Fe2O3 particles resulted in stable layers which turned out to be helpful in improving greatly the dispersion stability of the particles as shown by the Static Light Scattering and Dynamic Light Scattering results. Formation of a polysiloxane coating onto the surface of the pigment particles was confirmed by studying the interactions of the polymer molecules with Fe2O3 surfaces by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy techniques. Practical implications – The surface-treated red Fe2O3 particles with improved dispersion stability can be important components of various formulations in applications such as the colouring of the cement or inorganic pigment-based paint formulations. Originality/value – The study provides mechanistic insights about the interactions of amino-polysiloxane with the red Fe2O3 particles. The process of surface modification of red Fe2O3 particles with the amino-functional polysiloxane showed increased hydrophobicity and dispersion stability which is an important requirement of the pigment-based formulations in real applications.

Species-dependent eco-corona dictates the aggregation of black phosphorus nanosheets: the role of protein and calcium

2021 ◽  
Author(s):  
Linfeng Wei ◽  
Qing Zhang ◽  
Xingwang Hou ◽  
Guangbo Qu ◽  
Jiyan Liu ◽  
...  
Keyword(s):  
Root Zone ◽  
Black Phosphorus ◽  
Dispersion Stability ◽  
Agricultural Fields ◽  
Numerous Application ◽  
Application Prospects

There are numerous application prospects for black phosphorus (BP) in biomedical and agricultural fields. Here, the dispersion stability of BP nanosheets (BPNSs) in the root zone, which is essential for...

Visualizing Light Scattering in Silicon Waveguides with Black Phosphorus Photodetectors

2016 ◽  
Vol 28 (33) ◽  
pp. 7162-7166 ◽  
Author(s):  
Tianjiao Wang ◽  
Shuren Hu ◽  
Bhim Chamlagain ◽  
Tu Hong ◽  
Zhixian Zhou ◽  
...  
Keyword(s):  
Light Scattering ◽  
Black Phosphorus ◽  
Silicon Waveguides

Collision induced hyper-Rayleigh light scattering in CCl4

1996 ◽  
Vol 88 (3) ◽  
pp. 683-691 ◽  
Author(s):  
P. KAATZ ◽  
D.P. SHELTON
Keyword(s):  
Light Scattering ◽  
Rayleigh Light Scattering ◽  
Rayleigh Light
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