Exploring Ca and Sr Stannate Perovskites as Adsorbents for Congo Red Removal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39921687" target="_blank" >RIV/00216275:25310/24:39921687 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s10450-024-00455-w" target="_blank" >https://link.springer.com/article/10.1007/s10450-024-00455-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10450-024-00455-w" target="_blank" >10.1007/s10450-024-00455-w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Exploring Ca and Sr Stannate Perovskites as Adsorbents for Congo Red Removal

Popis výsledku v původním jazyce

Organic azo-dyes, including Congo Red, present a significant environmental concern due to their widespread industrial usage and resistance to biodegradation, leading to severe contamination of effluents. This study explores the efficacy of two basic perovskites (MSnO3, where M = Ca and Sr) in removing Congo Red by adsorption, offering a potential solution for wastewater treatment. The synthesis of the adsorbents was performed by a coprecipitation technique, an effective and no-waste producing method. By adjusting reaction conditions, the physical-chemical characteristics of the perovskites, including crystallinity, morphological features, surface area and porosity, were controlled. Adsorption studies conducted across a range of Congo Red concentrations (10-100 mg L- 1) at pH 10 revealed MSnO3 to possess exceptional adsorption capacity exceeding 100 mg per gram. The results indicate irreversible adsorption and potential adsorbent regeneration by thermal treatment. Slow kinetics also suggest strong binding forces aligned with the fundamentals of pseudo-second-order adsorption kinetic model. Regarding the impact of the synthesis parameters, while the precipitation conditions may not significantly influence adsorption performance, perovskite samples synthesized at higher temperatures are considered more suitable for this application due to their enhanced stability and regenerative capabilities for repeated use. Estimated correlations between sample parameters and adsorption efficiency provide a valuable insight for the practical application of oxide perovskites in addressing dye contamination issues. MSnO3 with tuneable properties can be obtained via MSn(OH)6 as an intermediate.CaSnO3 consistently demonstrates high adsorption capacities of 98-105 mg g- 1.SrSnO3 adsorption performance is significantly influenced by experimental conditions.Desorption experiments indicate irreversibility, suggesting strong binding forces.Both perovskites exhibit successful regeneration capabilities by thermal treatment.

Název v anglickém jazyce

Exploring Ca and Sr Stannate Perovskites as Adsorbents for Congo Red Removal

Popis výsledku anglicky

Organic azo-dyes, including Congo Red, present a significant environmental concern due to their widespread industrial usage and resistance to biodegradation, leading to severe contamination of effluents. This study explores the efficacy of two basic perovskites (MSnO3, where M = Ca and Sr) in removing Congo Red by adsorption, offering a potential solution for wastewater treatment. The synthesis of the adsorbents was performed by a coprecipitation technique, an effective and no-waste producing method. By adjusting reaction conditions, the physical-chemical characteristics of the perovskites, including crystallinity, morphological features, surface area and porosity, were controlled. Adsorption studies conducted across a range of Congo Red concentrations (10-100 mg L- 1) at pH 10 revealed MSnO3 to possess exceptional adsorption capacity exceeding 100 mg per gram. The results indicate irreversible adsorption and potential adsorbent regeneration by thermal treatment. Slow kinetics also suggest strong binding forces aligned with the fundamentals of pseudo-second-order adsorption kinetic model. Regarding the impact of the synthesis parameters, while the precipitation conditions may not significantly influence adsorption performance, perovskite samples synthesized at higher temperatures are considered more suitable for this application due to their enhanced stability and regenerative capabilities for repeated use. Estimated correlations between sample parameters and adsorption efficiency provide a valuable insight for the practical application of oxide perovskites in addressing dye contamination issues. MSnO3 with tuneable properties can be obtained via MSn(OH)6 as an intermediate.CaSnO3 consistently demonstrates high adsorption capacities of 98-105 mg g- 1.SrSnO3 adsorption performance is significantly influenced by experimental conditions.Desorption experiments indicate irreversibility, suggesting strong binding forces.Both perovskites exhibit successful regeneration capabilities by thermal treatment.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA22-11397S" target="_blank" >GA22-11397S: Směsné perovskity jako multifunkční materiály v pigmentové studii</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Adsorption - Journal of the International Adsorption Society

ISSN

0929-5607

e-ISSN

1572-8757

Svazek periodika

30

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

685-698

Kód UT WoS článku

001197969500002

EID výsledku v databázi Scopus

2-s2.0-85189460779