Continuous microwave synthesis of Bi2O3 rods coated with a temperature-sensitive polymer

• Published in: Journal of materials science Vol. 55; no. 25; pp. 11213 - 11225
• Main Authors: Zhu, Xiaodie, Lu, Ziyang, Liu, Xinlin, Song, Minshan, Zhou, Guosheng, Yu, Zehui, Xu, Lingyan, Liu, Qian, Han, Song, Chu, Jinyu
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-09-2020; Springer Nature B.V
• Subjects: Bismuth oxides; Bismuth trioxide; Characterization and Evaluation of Materials; Chemical Routes to Materials; Chemistry and Materials Science; Classical Mechanics; Controllability; Crystal structure; Crystallography and Scattering Methods; Degradation; Materials Science; Morphology; Photocatalysis; Polyisopropyl acrylamide; Polymer Sciences; Solid Mechanics; Stability
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-020-04799-w

Poly(
N
-isopropylacrylamide) (PNIPAM) is an organic environment-sensitive material, which can be combined with photocatalysts to control the photocatalytic process. Herein, rodlike environment-sensitive Bi
2
O
3
(PNIPAM/Bi
2
O
3
) was prepared by a novel one-step continuous microwave method. This new method is efficient and convenient. The as-prepared PNIPAM/Bi
2
O
3
was very sensitive to temperature and pH, and the degradation rate in the environment of 25 °C and pH = 9 was 3.87 times than that in the environment of 45 °C and pH = 5. While Bi
2
O
3
is under the above various environmental conditions, its degradation rate did not change obviously. More interestingly, the introduction of PNIPAM and one-step continuous microwave method was beneficial to the transformation of Bi
2
O
3
from no specific shape to rodlike morphology without changing its crystal structure. This work not only developed a new one-step continuous microwave synthesis method, but also opened up new ideas for the controllability requirements of materials in special environment.