Results 21 to 30 of about 353,000 (256)

Influence of the Preparation Method on the Physico-Chemical and Sorption Properties of Montmorillonite

Ceramics, 2023
Layered silicates with a montmorillonite structure are widely used in various fields related to adsorption, gas and water treatment, catalysis, cosmetology and medicine.
Olga Yu. Golubeva, Elena Yu. Brazovskaya, Yulia A. Alikina   +2 more
doaj   +1 more source

Particles Morphology Impact on Cytotoxicity, Hemolytic Activity and Sorption Properties of Porous Aluminosilicates of Kaolinite Group

Nanomaterials, 2022
A comparative study of the properties of aluminosilicates of the kaolinite (Al2Si2O5(OH)4∙nH2O) group with different particles morphology has been carried out.
Olga Yu. Golubeva, Yulia A. Alikina, Elena Yu. Brazovskaya   +2 more
doaj   +1 more source

Silicates, Silicate Weathering, and Microbial Ecology [PDF]

Geomicrobiology Journal, 2001
Mineralogy, microbial ecology, and mineral weathering in the subsurface are an intimately linked biogeochemical system. Although bacteria have been implicated indirectly in the accelerated weathering of minerals, it is not clear if this interaction is simply the coincidental result of microbial metabolism, or if it represents a specific strategy ...
Franz K. Hiebert, Philip C. Bennett, J. R. Rogers, Wan-Joo Choi   +3 more
openaire   +1 more source

Modelling and numerical simulation of fire in a coffee storage hall [PDF]

E3S Web of Conferences, 2021
An approach for modelling of fire in halls at solid materials burning, based on gas phase combustion models in ANSYS/CFX, is proposed. The models are suitable for quick prediction of the flue gases distribution and thermal loads on the building envelopes
Krumov Kalin, Penkova Nina, Mladenov Boian, Stoyanov Yordan   +3 more
doaj   +1 more source

Optical, photocatalytical and structural properties of TiO2 – SiO2 sol-gel coatings on high content SiO2 enamel surface

Medžiagotyra, 2015
TiO2 – SiO2 films deposited on enamel surface were investigated for self - cleaning applications. The TiO2 – SiO2 optical films prepared from a sol–gel precursor were deposited on enamel surface using dip - coating techniques.
Kaspars Mālnieks, Gundars MEZINSKIS, Ilona PAVLOVSKA, Laimonis BIDERMANIS, Arturs PLUDONS   +4 more
doaj   +1 more source

Simultaneous spectrophotometric determination of phosphate and silicate by using partial least squares method [PDF]

شیمی کاربردی روز, 2009
A very sensitive, simple and selective spectrophotometric method for simultaneous determination of phosphate and silicate based on formation of phospho- and silicomolybdenum blue complexes in the presence of ascorbic acid is described.
Mehdi Nekoei, Majid Mohammadhossein, Hasan Bagheri   +2 more
doaj   +1 more source

Changes of Periphyton Abundance and Biomass Driven by Factors Specific to Flooding Inflow in a River Inlet Area in Erhai Lake, China

Frontiers in Environmental Science, 2021
Periphyton is an ecological essential in freshwater lakes and rivers. Its abundance and biomass are very dynamic in various habitats and subject to various factors, for example, nutrient and light.
Wenjing Ren, Wenjing Ren, Yiqian Yao, Yiqian Yao, Zhonghai Zhang, Zhonghai Zhang, Yu Cao, Changbo Yuan, Changbo Yuan, Hao Wang, Hao Wang, Qing Chuan Chou, Qing Chuan Chou, Leyi Ni, Xiaolin Zhang, Te Cao   +15 more
doaj   +1 more source

Combustion Synthesis of Nanocrystalline Ba_1.3Ca_0.7SiO₄ Semiconductors Using Urea as an Energy Efficient Fuel

Inorganics, 2023
The τ-phase Ba1.3Ca0.7SiO4 alkaline earth silicate powders were synthesized using the solution combustion technique. For this purpose, metal nitrate–urea mixtures were used as an oxidant and a fuel.
Desta R. Golja, Francis B. Dejene, Megersa K. Hussen, Jung Yong Kim   +3 more
doaj   +1 more source

Photoluminescence processes in τ-phase Ba1.3Ca0.7-x-ySiO4:xDy3+/yTb3+ phosphors for solid-state lighting

Royal Society Open Science, 2022
The τ-phase Ba1.3Ca0.7-x-ySiO4:xDy3+/yTb3+ phosphors co-doped with Dy3+ (x = 0.03) and Tb3+ (y = 0.01–0.05) trivalent rare-earth ions were prepared by the gel-combustion method.
Desta R. Golja, Menberu M. Woldemariam, Francis B. Dejene, Jung Yong Kim   +3 more
doaj   +1 more source

Enhanced silicate weathering is not limited by silicic acid saturation [PDF]

Proceedings of the National Academy of Sciences, 2011
Enhanced weathering of olivine as a means of sequestering carbon is investigated by Kohler et al. (1). Specifically, the study discusses the potential distribution of fine olivine powder, obtained from dunite mines, in the humid tropic regions of the Amazon and Congo River catchments. Olivine (forsterite) dissolution (Eq.
Schuiling, R.D., Wilson, S.A., Power, I.M.   +2 more
openaire   +4 more sources