Modulation of physical and photocatalytic properties of (Cr, N) codoped TiO2 nanorods using soft solution processing

Wen Chung Lu, Hoang Diem Nguyen, Chun Yi Wu, Kao Shuo Chang, Masahiro Yoshimura

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Facile polymerized complex reactions together with a hydrothermal reaction were implemented to make single crystalline TiO2 nanorods for the first time. Chromium (Cr) and nitrogen (N2) co-doping was performed to tailor the physical properties. Transmission electron microscopy and x-ray diffraction study illustrated that highly reactive facets of (101), (111), and (001) dominated rutile TiO2 nanorods. A growth model, based on formation of complex species, was proposed to elucidate effectiveness of the soft solution processing in making TiO2 nanorods. X-ray photoelectron spectroscopy analysis and consideration of fundamentals of charge neutrality showed N2 doping could inhibit formation of Cr6+ and oxygen vacancies (VO2+). An investigation of the photocatalytic properties exhibited high efficiency of photodegradation of methylene blue in 15 min under pH = 10, using a nanocomposite of (7% Cr, 0.0021% N) codoped and 3% Cr doped TiO2 nanorods.

Original languageEnglish
Article number144305
JournalJournal of Applied Physics
Issue number14
Publication statusPublished - 2014 Apr 14

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Modulation of physical and photocatalytic properties of (Cr, N) codoped TiO<sub>2</sub> nanorods using soft solution processing'. Together they form a unique fingerprint.

Cite this