Thermodynamic modeling and experimental verification for ion-exchange synthesis of K 2 O·6TiO 2 and TiO 2 fibers from K 2 O·4TiO 2

Ningzhong Bao, Xiaohua Lu, Xiaoyan Ji, Xin Feng, Jingwei Xie

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

A thermodynamic model was established to determine ion-exchange conditions for the synthesis of potassium hexatitanate (K 2 O·6TiO 2 ) and titanium dioxide (TiO 2 ) from potassium tetratitanate (K 2 O·4TiO 2 ) fiber. In the proposed model equilibrium species in the solid phase and corresponding ion-exchange equilibrium constants at 298.15K were determined from the experimental data of Sasaki et al. [Inorg. Chem. 24 (1985) 2265]. In order to verify the proposed model, prediction results were compared with experimental data determined in literature and those measured in this work. The comparison shows a good agreement. Based on this, the proposed model was also used to predict more extensive suitable conditions for the synthesis of K 2 O·6TiO 2 and TiO 2 .

Original languageEnglish (US)
Pages (from-to)229-243
Number of pages15
JournalFluid Phase Equilibria
Volume193
Issue number1-2
DOIs
StatePublished - Jan 30 2002

Fingerprint

Ion exchange
Thermodynamics
thermodynamics
fibers
Fibers
synthesis
Potassium
potassium
ions
Equilibrium constants
titanium oxides
Titanium dioxide
solid phases
predictions

Keywords

  • Fiber
  • Ion-exchange
  • Model
  • Potassium titanate
  • Solid-fluid (potassium titania fiber-aqueous solution) equilibria
  • Titanium dioxide

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Thermodynamic modeling and experimental verification for ion-exchange synthesis of K 2 O·6TiO 2 and TiO 2 fibers from K 2 O·4TiO 2 . / Bao, Ningzhong; Lu, Xiaohua; Ji, Xiaoyan; Feng, Xin; Xie, Jingwei.

In: Fluid Phase Equilibria, Vol. 193, No. 1-2, 30.01.2002, p. 229-243.

Research output: Contribution to journalArticle

@article{f780089c46304b099c17f02d2bd367a0,
title = "Thermodynamic modeling and experimental verification for ion-exchange synthesis of K 2 O·6TiO 2 and TiO 2 fibers from K 2 O·4TiO 2",
abstract = "A thermodynamic model was established to determine ion-exchange conditions for the synthesis of potassium hexatitanate (K 2 O·6TiO 2 ) and titanium dioxide (TiO 2 ) from potassium tetratitanate (K 2 O·4TiO 2 ) fiber. In the proposed model equilibrium species in the solid phase and corresponding ion-exchange equilibrium constants at 298.15K were determined from the experimental data of Sasaki et al. [Inorg. Chem. 24 (1985) 2265]. In order to verify the proposed model, prediction results were compared with experimental data determined in literature and those measured in this work. The comparison shows a good agreement. Based on this, the proposed model was also used to predict more extensive suitable conditions for the synthesis of K 2 O·6TiO 2 and TiO 2 .",
keywords = "Fiber, Ion-exchange, Model, Potassium titanate, Solid-fluid (potassium titania fiber-aqueous solution) equilibria, Titanium dioxide",
author = "Ningzhong Bao and Xiaohua Lu and Xiaoyan Ji and Xin Feng and Jingwei Xie",
year = "2002",
month = "1",
day = "30",
doi = "10.1016/S0378-3812(01)00733-6",
language = "English (US)",
volume = "193",
pages = "229--243",
journal = "Fluid Phase Equilibria",
issn = "0378-3812",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Thermodynamic modeling and experimental verification for ion-exchange synthesis of K 2 O·6TiO 2 and TiO 2 fibers from K 2 O·4TiO 2

AU - Bao, Ningzhong

AU - Lu, Xiaohua

AU - Ji, Xiaoyan

AU - Feng, Xin

AU - Xie, Jingwei

PY - 2002/1/30

Y1 - 2002/1/30

N2 - A thermodynamic model was established to determine ion-exchange conditions for the synthesis of potassium hexatitanate (K 2 O·6TiO 2 ) and titanium dioxide (TiO 2 ) from potassium tetratitanate (K 2 O·4TiO 2 ) fiber. In the proposed model equilibrium species in the solid phase and corresponding ion-exchange equilibrium constants at 298.15K were determined from the experimental data of Sasaki et al. [Inorg. Chem. 24 (1985) 2265]. In order to verify the proposed model, prediction results were compared with experimental data determined in literature and those measured in this work. The comparison shows a good agreement. Based on this, the proposed model was also used to predict more extensive suitable conditions for the synthesis of K 2 O·6TiO 2 and TiO 2 .

AB - A thermodynamic model was established to determine ion-exchange conditions for the synthesis of potassium hexatitanate (K 2 O·6TiO 2 ) and titanium dioxide (TiO 2 ) from potassium tetratitanate (K 2 O·4TiO 2 ) fiber. In the proposed model equilibrium species in the solid phase and corresponding ion-exchange equilibrium constants at 298.15K were determined from the experimental data of Sasaki et al. [Inorg. Chem. 24 (1985) 2265]. In order to verify the proposed model, prediction results were compared with experimental data determined in literature and those measured in this work. The comparison shows a good agreement. Based on this, the proposed model was also used to predict more extensive suitable conditions for the synthesis of K 2 O·6TiO 2 and TiO 2 .

KW - Fiber

KW - Ion-exchange

KW - Model

KW - Potassium titanate

KW - Solid-fluid (potassium titania fiber-aqueous solution) equilibria

KW - Titanium dioxide

UR - http://www.scopus.com/inward/record.url?scp=0037196255&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037196255&partnerID=8YFLogxK

U2 - 10.1016/S0378-3812(01)00733-6

DO - 10.1016/S0378-3812(01)00733-6

M3 - Article

VL - 193

SP - 229

EP - 243

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

SN - 0378-3812

IS - 1-2

ER -