ChemInform Abstract: Solid-State Preparation of BaTiO3-Based Dielectrics Using Ultrafine Raw Materials.

ChemInform ◽  
2010 ◽  
Vol 33 (10) ◽  
pp. no-no
Author(s):  
Detlev F. K. Hennings ◽  
B. Seriyati Schreinemacher ◽  
Herbert Schreinemacher
Keyword(s):  
Solid State ◽  
Raw Materials ◽  
State Preparation

Solid-State Preparation of BaTiO3-Based Dielectrics, Using Ultrafine Raw Materials

2001 ◽  
Vol 84 (12) ◽  
pp. 2777-2782 ◽  
Author(s):  
Detlev F. K. Hennings ◽  
B. Seriyati Schreinemacher ◽  
Herbert Schreinemacher
Keyword(s):  
Solid State ◽  
Raw Materials ◽  
State Preparation

scholarly journals Solid‐State Preparation and Luminescence Investigation of Rare Earth Iodide Carbodiimide Nitrides RE 2 I(CN 2 )N (RE = La, Gd) and LaI(CN 2 )

2020 ◽  
Vol 2020 (41) ◽  
pp. 3954-3958
Author(s):  
Danuta Dutczak ◽  
Amira Siai ◽  
Markus Ströbele ◽  
David Enseling ◽  
Thomas Jüstel ◽  
...  
Keyword(s):  
Rare Earth ◽  
Solid State ◽  
State Preparation ◽  
Luminescence Investigation

Preparation of High-Purity Ultrafine α-Al2O3 by Solid-State Reaction at Room Temperature

2008 ◽  
Vol 368-372 ◽  
pp. 683-685
Author(s):  
Cheng Wei Hao ◽  
Bo Lin Wu ◽  
Ji Yan Li
Keyword(s):  
Solid State ◽  
High Purity ◽  
Solid State Reaction ◽  
Room Temperature ◽  
Raw Materials ◽  
Phase Particle ◽  
Phase Transformation Temperature ◽  
Particle Size And Morphology ◽  
Size And Morphology ◽  
Α Al2o3

Ammonium aluminium carbonate hydroxide (AACH), with a small quantity of γ-AlOOH, was synthesized through solid-state reaction at room temperature using AlCl3·6H2O and NH4HCO3 as raw materials and polyethylene glycol (PEG-10000) as the dispersant. After calcined at 1100°C for 1.5h, α-Al2O3 powders with primary particle sizes of 20~30nm were obtained. The crystal phase, particle size and morphology of the high-purity ultrafine α-Al2O3 were characterized. The results showed that a small quantity of γ-AlOOH in the AACH decomposed and formed crystal seeds. The presence of crystal seeds reduced the nucleation activation energy and therefore reduced the phase transformation temperature.

Facile Solid State Method Route Synthesis and Enhance Visible Light Activities of BiVO4 by Doping Co

2016 ◽  
Vol 703 ◽  
pp. 316-320
Author(s):  
Hai Feng Chen ◽  
Jing Ling Hu ◽  
Bing Xu
Keyword(s):  
Solid State ◽  
Visible Light ◽  
Catalytic Effect ◽  
Catalytic Properties ◽  
Raw Materials ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
Illumination Time ◽  
X Ray ◽  
State Method

Using NH4VO3, Bi (NO3)3•5H2O and Co (NO3)2•6H2O as raw materials, Co doped BiVO4 (Co/BiVO4) photocatalysts were successfully prepared by solid state method. And the photo catalytic properties were test in this work. Crystal structures of these samples were characterized by X-ray diffraction (XRD). The Methyl Orange (MO) was simulated as the sewage under the visible light to explorer the influence of the illumination time and the mass of photocatalyst. The visible-light absorption spectrum of BiVO4 was broadening with doping Co. It was found that the Co/BiVO4 had higher photocatalytic activity than pure BiVO4 .The reason of enhanced catalytic effect also had been analyzed and discussed in the article.

Preparation and Photocatalytic Activity of Cu/BiVO4 by Solid State Grinding Method for Degradation of Methyl Orange

2016 ◽  
Vol 703 ◽  
pp. 321-325
Author(s):  
Hai Feng Chen ◽  
Jia Mei Chen ◽  
Zhi Xue Pan
Keyword(s):  
Methyl Orange ◽  
Solid State ◽  
Visible Light ◽  
Raw Materials ◽  
X Ray Diffraction ◽  
Visible Absorption ◽  
Illumination Time ◽  
Grinding Method ◽  
Ft Ir ◽  
Degradation Of Methyl Orange

In this work, novel Cu/BiVO4 photocatalyst were prepared by a low-temperature solid state grinding method using Bi (NO3)3•5H2O, NH4VO3 and Cu (NO3)2•2H2O as raw materials. The structure and properties of the samples were characterized by Infrared Spectroscopy (FT-IR), X-ray diffraction (XRD) and UV-vis diffused reflectance spectroscopy (DRS); Using the degradation of methyl orange (MO) as the probe, it was simulated as the degradation of sewage under the visible light to study the influence of the illumination time and the amount of photocatalysts. Compared with the pure BiVO4, the visible-light absorption scope of BiVO4 was broadened by doping Cu, the UV-Visible absorption edges were slightly red shift and the band gap was narrower. Comparatively speaking, the results indicted that the doped Cu enhanced the photocatalytic activities of BiVO4.

scholarly journals Optimization of Cultural Conditions for Solid State Fermentation of Amylase Production by Aspergillus species

2013 ◽  
Vol 14 (1) ◽  
pp. 67-74
Author(s):  
Bina Gautam ◽  
Tika B Karki ◽  
Om Prakash Panta
Keyword(s):  
Solid State ◽  
Rice Bran ◽  
Solid State Fermentation ◽  
Food Industry ◽  
Raw Materials ◽  
Morphological Characteristics ◽  
Amylolytic Enzyme ◽  
Cultural Conditions ◽  
Amylase Production ◽  
Selection Of

Amylase is an amylolytic enzyme used in food industry which is generally produced by Aspergillus spp. under solid state fermentation. The present study is concerned with the isolation, screening and selection of suitable strains of Aspergillus spp. and optimization of cultural conditions for the biosynthesis of amylase. Rice and wheat brans were used as substrates which are readily available inexpensive raw materials for amylase production. From 85 samples of rice and wheat grains, 55 colonies obtained on potato dextrose agar (PDA) were suspected to be Aspergillus oryzae and only 35 colonies possessed the morphological characteristics similar to that of A. oryzae indicating the isolates were most likely the strains of A. oryzae. Of all the fungal isolates of Aspergillus spps., Asp.31 gave maximum production of amylase (720.782 IUgds-1) in solid state fermentation media. This strain was selected as a parental strain for optimization for cultural conditions. The obtained data were analyzed using SPSS- 11.5 program. Of all the substrates (rice bran, wheat bran and their mixture), rice bran was the best for producing amylase of highest activity 611.614 IUgds-1.The highest enzyme activity of 698.749 IUgds-1 was observed at 50% initial moisture level of the substrate. The optimum temperature was 25°C for producing the crude amylase enzyme with amylase activity of 577.757 IUgds-1. Nepal Journal of Science and Technology Vol. 14, No. 1 (2013) 67-74 DOI: http://dx.doi.org/10.3126/njst.v14i1.8924

scholarly journals PENGARUH UKURAN PARTIKEL AMPAS SAGU DALAM PRODUKSI PIGMEN ANGKAK MENGGUNAKAN Monascus purpureus

2018 ◽  
Vol 22 (2) ◽  
pp. 111
Author(s):  
Alfi Asben ◽  
Deivy Andhika Permata
Keyword(s):  
Particle Size ◽  
Solid State ◽  
Solid State Fermentation ◽  
Raw Materials ◽  
Rice Flour ◽  
Monascus Purpureus ◽  
Color Intensity ◽  
Food Colorants

Angka pigment is one of food colorants that safe to used. It can be produced by subtrate that contain of sago hampas. The objective of the research was to get the appropriate of sago hampas particle size to produce the angkak pigment. The steps to produce of angkak pigment were (a) Preparation of raw materials (sago hampas and rice flour substrate with comparison 1:1 (12.5 : 12.5). This research used  three treatments of sago hampas particle size (40-60 mesh, 60-80 mesh, and >80 mesh) with 3 replications, (b) Preparation of Monascus purpureus culture, (c) Solid state fermentation to produce angkak pigment using M. purpureus. The results of the research showed that the substrate with hampas sago particle size 40-60 mesh produced  the best angkak pigment. The angkak pigment obtain the highest color intensity on λ 400 nm, λ 470 nm, λ 500 nm were 6004, 5110 and 3650 respectively, the highest used starch, antioxidant, toxicity, lovastatin and spore of  M.  purpureus were 11.07%, 45.95%, 1719.86 (LC50), 79 ppm, and 3.4 x 103 CPU/g respectively.

Electrochemical properties of high-voltage LiNi0.5Mn1.5O4 synthesized by a solid-state method

RSC Advances ◽  
2014 ◽  
Vol 4 (50) ◽  
pp. 26022-26029 ◽  
Author(s):  
Yan-Zhuo Lv ◽  
Yan-Zhang Jin ◽  
Yuan Xue ◽  
Jin Wu ◽  
Xiao-Gang Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochemical Properties ◽  
High Voltage ◽  
Raw Materials ◽  
Cycling Stability ◽  
Solid State Method ◽  
State Method ◽  
Bulk Scale

The high-voltage LiNi0.5Mn1.5O4 synthesized at 850 °C for 12 h and sintered at 600 °C for 6 h exhibits excellently cycling stability from industrial raw materials in bulk scale (>0.5 kg).

Valorization of agro-industrial wastes to produce hydrolytic enzymes by fungal solid-state fermentation

2018 ◽  
Vol 37 (2) ◽  
pp. 149-156 ◽  
Author(s):  
C. Marzo ◽  
A.B. Díaz ◽  
I. Caro ◽  
A. Blandino
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Reducing Sugars ◽  
Raw Materials ◽  
Hydrolytic Enzymes ◽  
Industrial Wastes ◽  
Added Value ◽  
Orange Peels ◽  
Enzyme Cocktail ◽  
Hydrolysis Of

Nowadays, significant amounts of agro-industrial wastes are discarded by industries; however, they represent interesting raw materials for the production of high-added value products. In this regard, orange peels (ORA) and exhausted sugar beet cossettes (ESBC) have turned out to be promising raw materials for hydrolytic enzymes production by solid state fermentation (SSF) and also a source of sugars which could be fermented to different high-added value products. The maximum activities of xylanase and exo-polygalacturonase (exo-PG) measured in the enzymatic extracts obtained after the SSF of ORA were 31,000 U·kg-1 and 17,600 U·kg-1, respectively; while for ESBC the maximum values reached were 35,000 U·kg-1 and 28,000 U·kg-1, respectively. The enzymatic extracts obtained in the SSF experiments were also employed for the hydrolysis of ORA and ESBC. Furthermore, it was found that extracts obtained from SSF of ORA, supplemented with commercial cellulase, were more efficient for the hydrolysis of ORA and ESBC than a commercial enzyme cocktail typically used for this purpose. In this case, maximum reducing sugars concentrations of 57 and 47 g·L-1 were measured after the enzymatic hydrolysis of ESBC and ORA, respectively.

Sign in / Sign up

Export Citation Format

Share Document