Wszystkie pola: fluoride - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fluoride and environment
Autorzy:: Moudarzi, Fasser
Sheljani, Karikhan
Powiązania:: https://bibliotekanauki.pl/articles/1153715.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Environment
Fluorine
Opis:: The presence of fluoride in exceeding limits and related problems of drinking water prevailing in many parts of India is well documented. Fluoride in drinking water is known for having both beneficial and detrimental effects on health. Many solutions to these problems were also suggested. Fluoride from water or wastewater can be removed by an ion exchange/adsorption process or by a coagulation, precipitation process. The ion exchange/adsorption can be applied to either concentrated or diluted solutions and they are capable of achieving complete removal under proper conditions. The method suitable for a given situation needs to be judiciously selected considering the various aspects. The paper presents the current information on fluoride in environment and its effects on human health, as well as available methods of defluoridation in detail.
Źródło:: World News of Natural Sciences; 2016, 3; 1-11
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Minimizing fluoride by coagulation on iron(III) hydroxide in drinkable water from Oasis region of Algeria
Autorzy:: Atia, D.
Hoggui, A.
Powiązania:: https://bibliotekanauki.pl/articles/411515.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Oasis region
minimizing fluoride
fluorosis
coagulation
drinkable water
Opis:: The drinkable water in oasis region of Algeria contains high quantity of fluoride which causes dental fluorosis. To reduce fluoride, we have chosen a sample with the biggest content of fluoride among many sources in order to coagulate it with FeSO4·H2O. After that the parameters influencing (concentration, pH, temperature) are studied to choose the best conditions for better reduction.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 7, 1; 23-29
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Fabrication and Optoelectronic properties of Fluoride tin oxides/porous silicon/p-Silicon heterojunction
Autorzy:: Hadi, H. A.
Powiązania:: https://bibliotekanauki.pl/articles/411926.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: porous silicon
electrochemical etching
spray pyrolysis
fluoride-doped tin oxide film
nanostructures
SEM
AFM
photodetector
Opis:: In this paper, formation of a nanostructure semi transparence fluoride tin oxides (FTO) by spray pyrolysis technique on porous silicon PS layer. Porous silicon PS layer was prepared by anodization of p-type silicon wafers to fabricate of the UV- Visible Fluoride-doped tin oxide /Porous silicon /p-Si heterojunction photodetector. Optical properties of FTO thin films were measured. The optical band gap of 3.77 eV for SnO₂ : F for film was deduced. From (I-V) and (C-V) measurements, the barrier Ø_B height for FTO/PS diode was of 0.77, and the built in voltage V_bi, which was of 0.95 V. External quantum efficiency was 55 % at 500 nm which corresponding to peak responsivity of 1.15 A/W at 1 V bias. The PS band gap in the vicinity of PS/c-Si heterojunction was 1.38 eV.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 17, 2; 142-152
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Decreasing fluoride by coagulation in drinkable water from Souf region of Algeria
Autorzy:: Atia, D.
Hoggui, A.
Powiązania:: https://bibliotekanauki.pl/articles/411794.pdf
Data publikacji:: 2013
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Souf region
defluoridation
fluorosis
coagulation
drinkable water
Opis:: The drinkable water in Souf region at the south east of Algeria contains high quantity of fluoride which causes dental fluorosis. To reduce fluoride, we have chosen a sample with the biggest content of fluoride among many sources in order to coagulate it with Fe2(SO4)3źH2O. After that the parameters influencing (concentration, pH, temperature) are studied to choose the best conditions for better reduction.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2013, 5; 57-65
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Gamma-Irradiations Effects on Structural and Micro-Structural Parameters of Chromium(III) – Silicate Base Mica Clay
Autorzy:: Elsabawy, Khaled M.
Abou-Sekkinaa, Morsy M.
Powiązania:: https://bibliotekanauki.pl/articles/1186742.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Free fluoride
Mica clay
SEM
Structural Parameters
Synthesis
XRD
Opis:: Solution route was applied to synthesize new family of free-fluoride synthetic clay. All starting solutions were made by applying carbon tetra-chloride (CCl4) as a solvent. The selected sample of synthetic free fluoride – Na-4-mica was having the general formula (Na4Mg6M4Si4O22•nH2O) where M = Cr3+ was exposured to two different ɤ-irradiation doses 1st dose = 1.5 MR/h and 2nd dose = 3 MR/h at 25 cm distance. Structural parameters such as lattice constants, volume and phase quality were monitoring carefully by using both of XRD and SEM evaluating grain size of the mica bulk. Structural investigations proved that Cr-clay exhibits monoclinic phase accompanied with structure quality in comparison with both of Bi-and Al-clays
Źródło:: World Scientific News; 2016, 32; 13-23
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

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