Skip to main content
Disciplines
Automotive Business IT + Informatics Construction + Real Estate Electrical Engineering + Electronics Energy + Sustainability Insurance + Risk Finance + Banking Management + Leadership Marketing + Sales Mechanical Engineering + Materials
Events
DE
EN
Books
Journals
Topic Page
Marketing
Start single access now
Access for companies
EXTENDED SEARCH
Log in
Top
Journal of Materials Science: Materials in Electronics
Published in: Journal of Materials Science: Materials in Electronics 1/2020

12-02-2019

Regulate the microstructure and band gap of La2Ti2O7

Authors: Yueyi Li, Laiming Jiang, Qiang Chen, Jianguo Zhu

Published in: Journal of Materials Science: Materials in Electronics | Issue 1/2020

Log in

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

La2Ti2O7 (LTO) dry gel was obtained according to sol–gel technology. Considering that processing temperature could have effect on the microstructure and band gap of LTO, four temperature points, 500 °C, 850 °C, 1000 °C and 1200 °C were selected to dispose gel to acquire LTO powder. The results indicate that except the sample disposed at 500 °C, other three samples are univocal monoclinic structure with space group P21 which corresponds to the standard card 1950-ICSD. The crystallinity of LTO powders increases with the increase of processing temperature. The distortions of the LTO unit cell at a–b projection plane first decrease and then increase. Adopting the UV–visible reflection spectrums analysis, the band gaps of LTO powders disposed at 500 °C, 850 °C, 1000 °C and 1200 °C are 3.82 eV, 3.99 eV, 4.08 eV and 3.94 eV, respectively.
previous article Structural, thermal and electrical properties of silk fibroin–silver nanoparticles composite films
next article Ab initio design and experimental confirmation of Fabry–Perot cavities based on freestanding porous silicon multilayers

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

inform now

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

inform now

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 340 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Versicherung + Risiko




Jetzt Wissensvorsprung sichern!

inform now
Appendix
Available only for authorised users
Literature
1.
L. Sun, J.F. Hu, F. Gao, X.W. Kong, H.W. Qin, M.H. Jiang, Room-temperature ferromagnetism and ferroelectricity of nanocrystalline La2Ti2O7. J. Alloys Compd. 502, 176–179 (2010)CrossRef
2.
H.P. Ning, H.X. Yan, M.J. Reece, Piezoelectric strontium niobate and calcium niobate ceramics with super-high curie points. J. Am. Ceram. Soc. 93(5), 1409–1413 (2010)
3.
H. Cheng, Z.G. Lu, Y. Liu, H.H. Yang, Y.Y. Gu, W. Li, Y.G. Tang, Sol-gel synthesis and photoluminescence characterization of La2Ti2O7: Eu3+ nanocrystals. Rare Met. 30(6), 602–606 (2011)CrossRef
4.
Z.M. Shao, S. Saitzek, P. Roussel, O. Mentré, F.P. Gheorghiu, L. Mitoseriu, R. Desfeux, Structural and dielectric/ferroelectric properties of (La1 − xNdx)2Ti2O7 synthesized bysol-gelroute. J. Solid State Chem. 183, 1652–1662 (2010)CrossRef
5.
G. Herrera, J. Jiménez-Mier, E. Chavira, Layered-structural monoclinic–orthorhombic perovskite La2Ti2O7 to orthorhombic LaTiO3 phase transition and their microstructure characterization. Mater. Charact. 89, 13–22 (2014)CrossRef
6.
C. Bohnke, B. Regrag, F. Le Berre, J.L. Fourquet, N. Randrianantoandro, Comparison of pH sensitivity of lithium lanthanum titanate obtained by sol-gel synthesis and solid state chemistry. Solid State Ionics. 176, 73–80 (2005)CrossRef
7.
Z.J. Ma, K.C. Wu, R.J. Sa, Q.H. Li, C. He, Z.G. Yi, Mechanism of enhanced photocatalytic activities on N-doped La2Ti2O7: an insight from density functional calculations. Int. J. Hydrog. Energy. 40, 980–989 (2015)CrossRef
8.
R. Talebi, S. Safazade, Auto-combustion preparation and characterization of lanthanum titanate nanoparticles by using tyrosine as fuel and its photocatalyst application. J. Mater. Sci. Mater. Electron. 27, 8294–8298 (2016)CrossRef
9.
P. Liu, J. Nisar, B. Pathak, R. Ahuja, Cationic–anionic mediated charge compensation on La2Ti2O7 for visible light photocatalysis. Phys. Chem. Chem. Phys. 15, 17150–17157 (2013)CrossRef
10.
B.T. Yost, S.K. Cushing, F. Meng, J. Bright, D.A. Bas, N. Wu, A.D. Bristow, Investigation of band gap narrowing in nitrogen doped La2Ti2O7 with transient absorption spectroscopy. Phys. Chem. Chem. Phys. 17, 31039–31043 (2015)CrossRef
11.
X.Y. Cai, J.Y. Zhang, M. Fujitsuka, T. Majima, Graphitic-C3N4 hybridized N-doped La2Ti2O7 two-dimensional layered composites as efficient visible-light-driven photocatalyst. Appl. Catal. B 202, 191–198 (2017)CrossRef
12.
J.G. Zhu, Y.Y. Li, S.M. Bao, Preparation method of ultrahigh-Curie-temperature piezoelectric ceramic material. [P] Chinese. Public account: CN108046802A. Application account: CN201810011358
13.
W.J. Zhang, Z. Ma, L. Du, L.L. Yang, X.J. Chen, H.B. He, Effects of calcination temperature on characterization and photocatalytic activity of La2Ti2O7 supported on HZSM-5 zeolite. J. Alloys Compd. 695, 3541–3546 (2017)CrossRef
14.
Y.F. Zhang, J. Yuan, H.H. Gong, Y. Cao, K.W. Liu, H.M. Cao, H.J. Yan, J.G. Zhu, (00l)-facet-exposed planelike ABi2Nb2O9 (A = Ca, Sr, Ba) powders with a single-crystal grain for enhancement of photocatalytic activity. ACS Sustain. Chem. Eng. 6, 3840–3852 (2018)CrossRef
Metadata
Title
Regulate the microstructure and band gap of La2Ti2O7
Authors
Yueyi Li
Laiming Jiang
Qiang Chen
Jianguo Zhu
Publication date
12-02-2019
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 1/2020
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-019-00877-1

Other articles of this Issue 1/2020

Journal of Materials Science: Materials in Electronics 1/2020 Go to the issue

OriginalPaper

SiNx films and membranes for photonic and MEMS applications

OriginalPaper

Photoanode annealing effect on charge transport in dye-sensitized solar cell

OriginalPaper

Dielectric relaxation, electrical conductivity and optical studies of solid-state synthesized EuCrO3

OriginalPaper

Influence of high-energy ball milling on structural, microstructural, and optical properties of Mg2TiO4 nanoparticles

OriginalPaper

Laser sintering method induced c-axis growth of Mg0.2Zn0.8O nano-film for ultraviolet photodetector

OriginalPaper

Synthesis and characterization of graphene nanoplates supported silver nanoparticles with enhanced photocatalytic activity