A simple low-temperature fabrication of oblique prism-like bismuth oxide via a one-step aqueous process

Oblique prism-like Bi2O3 have been synthesized via a simple one-step aqueous method at low temperature and ambient pressure in the presence of sodium dodecylbenzenesulfonate (SDBS). The oblique prism-like Bi2O3 have better distribution with an average diameter of 2 μm and length of up to tens of micrometers. X-ray diffraction and energy-dispersive X-ray analysis (EDX) indicate that oblique prism-like Bi2O3 are monoclinic phase with high purity. The optical absorption and photoluminescence (PL) characteristics of the prepared sample were investigated. The formation mechanism has also been discussed based on experimental results.

In this work, oblique prism-like Bi2O3 with an average diameter of 2 μm and length of up to tens of micrometers have been synthesized via a simple one-step aqueous method at low temperature and ambient pressure in the presence of sodium dodecylbenzenesulfonate (SDBS). The formation mechanism of this kind of microstructure is a combined procedure of oriented attachment followed by Ostwald ripening.Figure optionsDownload as PowerPoint slideResearch highlights
► Oblique prism-like α-Bi2O3 have been synthesized by one-step aqueous method at 50 °C.
► They are usually about 2 μm in diameter and tens of micrometers in length.
► The growth mechanism of oriented attachment followed by Ostwald ripening is proposed.