Autor: Bajda, Agnieszka - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Synthesis and solubility of hopeite Zn₃(PO₄)₂·4H₂O
Autorzy:: Bajda, Tomasz
Rogowska, Melania
Pawłowska, Agnieszka
Powiązania:: https://bibliotekanauki.pl/articles/46220160.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: zinc
phosphate
apatite
dissolution
solubility product
Opis:: Minerals from the phosphate groups are used in environmental engineering as thermodynamically stable vehicles for heavy metals such as zinc. The hopeite Zn₃(PO₄)₂·4H₂O was synthesized and characterized by X-ray diffraction and scanning electron microscopy. The solubility of the hopeite was measured at 25°C. The average solubility product, log K_sp, for the reaction Zn₃(PO₄)₂·4H₂O ⇔ 3Zn²⁺ + 2PO₄ ³⁻ + 4H₂O at 25°C is –35.72 ± 0.03. The free energy of formation, ΔG°f ,298, calculated from this measured solubility product is –3597.4 ± 1.0 kJ mol−1. The immobilization of zinc in the hopeite structure offers the possibility of developing an effective method for removing Zn from wastewater, water and soils.
Źródło:: Mineralogia; 2023, 54, 1; 78-81
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Characteristics of sorbent products obtained by the alkaline activation of waste from waste incineration plants
Autorzy:: Grela, Agnieszka
Łach, Michał
Bajda, Tomasz
Mikuła, Janusz
Powiązania:: https://bibliotekanauki.pl/articles/127590.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: alkali-activated
ash from waste incineration
slag from waste incineration
Opis:: Poland, by 2020 430,000 Mg of hazardous waste will be formed annually by the combustion of waste. This waste must be properly managed so as not to endanger the environment. One promising way to manage selected waste is to process it in the synthesis of materials characterised by sorption properties. The results presented in this paper concern the possibility of producing sorbents from waste materials marked with codes 190112 and 190114, which came from two waste incineration plants in Poland. Alkaline activation was performed using two methods: a) hydrothermal, in a solution of 8 M NaOH at 75°C for 24 h; and b) in an autoclave, using a solution of 2 M NaOH at 140°C for 6 h. XRD analyses led to the identification of materials after synthesis of the following zeolite phases: analcime, chabazite and thomsonite. chabazite and analcime can be valuable absorbent materials.
Źródło:: Mineralogia; 2017, 48, 1/4; 87-105
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Light conditions alter accumulation of long chain polyprenols in leaves of trees and shrubs throughout the vegetation season.
Autorzy:: Bajda, Agnieszka
Chojnacki, Tadeusz
Hertel, Józefina
Swiezewska, Ewa
Wójcik, Jacek
Kaczkowska, Alicja
Marczewski, Andrzej
Bojarczuk, Tomasz
Karolewski, Piotr
Oleksyn, Jacek
Powiązania:: https://bibliotekanauki.pl/articles/1041482.pdf
Data publikacji:: 2005
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: plant polyprenols
SLA
Opis:: In many plants belonging to angiosperms and gymnosperms the accumulation in leaves of long chain polyprenols and polyprenyl esters during growth in natural habitats depends on the light intensity. The amount of polyprenols in leaves is also positively correlated with the thickness of the leaf blade (SLA, specific leaf area). The polyprenol content of leaves shows seasonal changes with a maximum in autumn and a minimum in early summer with the difference between poorly and well illuminated plants persisting throughout the vegetation season.
Źródło:: Acta Biochimica Polonica; 2005, 52, 1; 233-241
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

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