J 2023

Tailoring hydroxyapatite morphology via the effect of divalent cations on the hydrolysis of α-TCP: Oriented crystal growth towards the application in water treatment

RAUDONYTE-SVIRBUTAVICIENE, Eva, Laura LUKAVICIUTE, Zdeněk MORAVEC, Jiří PINKAS, Tomoyo GOTO et. al.

Basic information

Original name

Tailoring hydroxyapatite morphology via the effect of divalent cations on the hydrolysis of α-TCP: Oriented crystal growth towards the application in water treatment

Authors

RAUDONYTE-SVIRBUTAVICIENE, Eva, Laura LUKAVICIUTE, Zdeněk MORAVEC (203 Czech Republic, belonging to the institution), Jiří PINKAS (203 Czech Republic, belonging to the institution), Tomoyo GOTO, Tohru SEKINO, Aleksej ZARKOV and Aivaras KAREIVA

Edition

Ceramics International, Elsevier, 2023, 0272-8842

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10400 1.4 Chemical sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.200 in 2022

RIV identification code

RIV/00216224:14310/23:00131673

Organization unit

Faculty of Science

UT WoS

001071939100001

Keywords in English

Hydrothermal synthesis; Hydroxyapatite; Divalent cations; Crystal growth; Adsorption

Tags

Tags

International impact, Reviewed
Změněno: 18/10/2024 13:56, Ing. Jana Kuchtová

Abstract

V originále

The hydrothermal synthesis method to produce calcium hydroxyapatite (HA) of controlled morphology without the use of organic additives is developed in this study. The influence of smaller (Mg2+, Mn2+) and larger (Sr2+, Ba2+) ions on the hydrolysis of α-TCP and crystal growth of HA particles was investigated. It was revealed that both the hydrothermal synthesis conditions (temperature, time) and the nature and concentration of the foreign ion affected the phase purity and morphology of the final products. Of all the ions investigated, Mn2+ had the highest, and Sr2+ had the lowest inhibiting effect on the hydrolysis process of α-TCP. Under certain synthesis conditions, we were able to obtain samples consisting of plate-like or rod-like particles only. The dye adsorption test revealed that the adsorption of plate-like particles for cationic dyes was more efficient, possibly, due to the higher surface area (SBET). Upon normalizing the test results to SBET, it became apparent that the electrostatic attraction between HA particles and dye molecules also impacted the adsorption efficiency. Rod-like particles had a higher ratio of exposed (a,m)-planes and hence lower zeta potential, resulting in increased adsorption of the cationic dye.

Links

90127, large research infrastructures
Name: CIISB II