Preparation of a novel red Rb2SiF6:Mn4+phosphor with high thermal stability through a simple one-step approach

2015 ◽  
Vol 3 (28) ◽  
pp. 7277-7280 ◽  
Author(s):  
Mu-Huai Fang ◽  
Hoang-Duy Nguyen ◽  
Chun Che Lin ◽  
Ru-Shi Liu
Keyword(s):  
Thermal Stability ◽  
High Thermal Stability ◽  
Precipitation Method ◽  
One Step ◽  
Co Precipitation

A new Rb2SiF6:Mn4+phosphor has been successfully synthesized through a one-step co-precipitation method.

One-step purification of a recombinant beta-galactosidase using magnetic cellulose as a support: Rapid immobilization and high thermal stability

2021 ◽  
pp. 126497
Author(s):  
Adriano Gennari ◽  
Renate Simon ◽  
Nathalia Denise de Moura Sperotto ◽  
Cristiano Valim Bizarro ◽  
Luiz Augusto Basso ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Thermal Stability ◽  
One Step ◽  
Beta Galactosidase

Sonochemical Co-Precipitation Synthesis of Gallic Acid-Modified Magnetite

2015 ◽  
Vol 1101 ◽  
pp. 286-289 ◽  
Author(s):  
Maya Rahmayanti ◽  
Sri Juari Santosa ◽  
Sutarno
Keyword(s):  
Magnetic Properties ◽  
Gallic Acid ◽  
Precipitation Method ◽  
Vibrating Sample Magnetometer ◽  
X Ray Diffraction ◽  
X Ray ◽  
One Step ◽  
The Fourier Transform ◽  
The One ◽  
Co Precipitation

Gallic acid-modified magnetites were synthesized by one and two-step reactions via the newly developed sonochemical co-precipitation method. The two-step reaction included the formation of magnetite powder and mixing the magnetite powder with gallic acid solution, while the one-step reaction did not go through the formation magnetite powder. The obtained gallic acid-modified magnetites were characterized by the Fourier Transform Infrared (FTIR) spectroscopy, the X-Ray Diffraction (XRD) and the Scanning Electron Microscopy (SEM). More over, the magnetic properties were studied by using a Vibrating Sample Magnetometer (VSM). The characterization results showed that there were differences in crystalinity, surface morphology and magnetic properties of products that were formed by one and two-step reactions.

Ordered mesoporous silica/polyvinylidene fluoride composite membranes for effective removal of water contaminants

2016 ◽  
Vol 4 (10) ◽  
pp. 3850-3857 ◽  
Author(s):  
Jianwei Fan ◽  
Dandan Li ◽  
Wei Teng ◽  
Jianping Yang ◽  
Yong Liu ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Polyvinylidene Fluoride ◽  
Composite Membranes ◽  
Precipitation Method ◽  
Ordered Mesoporous Silica ◽  
Water Contaminants ◽  
Effective Removal ◽  
Ordered Mesoporous ◽  
One Step ◽  
Co Precipitation

Ordered mesoporous silica/polyvinylidene fluoride membranes were fabricated via a versatile and industrially compatible one-step immersion co-precipitation method. They exhibit effective decontamination performance for water containing methylene blue and Cu(ii) ions, respectively.

A highly-efficient La–MnOx catalyst for propane combustion: the promotional role of La and the effect of the preparation method

2016 ◽  
Vol 6 (23) ◽  
pp. 8222-8233 ◽  
Author(s):  
Yujie Xie ◽  
Yun Guo ◽  
Yanglong Guo ◽  
Li Wang ◽  
Wangcheng Zhan ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Preparation Method ◽  
Deep Oxidation ◽  
Precipitation Method ◽  
Propane Combustion ◽  
Highly Efficient ◽  
Excellent Activity ◽  
Co Precipitation

The La0.4–MnOx catalyst prepared by using the co-precipitation method exhibited excellent activity and thermal stability for propane deep oxidation.

Investigation of the thermal stability of Mn ferrite particles synthesized by a modified co-precipitation method

2012 ◽  
Vol 56 (3) ◽  
pp. 568-572 ◽  
Author(s):  
ChunHui Dong ◽  
GaoXue Wang ◽  
Lei Shi ◽  
DangWei Guo ◽  
ChangJun Jiang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Precipitation Method ◽  
Co Precipitation ◽  
Thermal Stability Of

Synthesis and Thermal Treatment of Hydroxyapatite Doped with Magnesium, Zinc and Silicon

2017 ◽  
Vol 68 (6) ◽  
pp. 1193-1200 ◽  
Author(s):  
Firuta Goga ◽  
Edit Forizs ◽  
Alexandra Avram ◽  
Adela Rotaru ◽  
Anamaria Lucian ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Bone Substitutes ◽  
High Thermal Stability ◽  
Precipitation Method ◽  
Force Microscopy ◽  
Calcination Temperatures ◽  
Nano Crystalline ◽  
Bet Specific Surface Area ◽  
Composition And Structure ◽  
New Generation

Pure nano-crystalline hydroxyapatite (Hap) and Hap doped with magnesium, zinc and silicon, namely Hap-0.25wt%Mg: Hap01, Hap-0.25wt%Mg-0.47wt%Si: Hap02, Hap-1.50wt%Mg-0.47wt%Si: Hap03, Hap-0.67wt%Mg-0.2wt%Zn-0.13wt%Si: Hap04, were synthesized using aqueous precipitation method. The pure and doped Hap were calcined individually at 400, 650 and 850 �C for 2h, and investigated by Brunauer-Emmett-Teller (BET) specific surface area and porosity measurements, as well as by X-ray powder diffraction (XRD). The morphology and particle size of nano-crystalline powders were investigated using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The thermal stability of the obtained nanoceramics from 30�C to 1000�C and the effect of calcination temperatures (400, 650 and 850 �C) on their composition and structure were also determined by using TG, DTG, TGA and DTA techniques coupled with SEM-EDX. Results analysis shows a high thermal stability (up to 1000 �C) of these nanomaterials, including the triple-substituted Hap with Mg, Zn and Si (Hap04). Simultaneous incorporation of Mg, Zn and Si into Hap lattice represents a novelty and promotes a new generation of synthetic porous nanoceramics with unique Hap structure, and high thermal stability. Due to their chemical composition and structure rather similar to those characteristic for the inorganic component of bone, these nanoceramics can have multiple applications in biomedicine, as bone substitutes, for metal coatings and in drug delivery systems.

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