Formation mechanism of porous rose-like WO3 and its photoresponse and stability study. Issue 17 (14th April 2020)

• Record Type: Journal Article
• Authors: Yao, Jiacheng; Zhang, Min; Yin, Hongfei; Arif, Muhammad; Liu, Xiaoheng
• Is Part Of: CrystEngComm. Volume 22:Issue 17(2020)
• Page Start: 2945
• Page End: 2952
• Publication Date: 2020-04-14
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/d0ce00185f
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : Fabrication of rose-like WO3 by chemical bath method. Abstract : WO3 materials are widely used in photocatalysis and electrocatalysis. In this work, sodium dodecyl benzene sulfonate (SDBS) was used to control the growth of H2 WO4 during a chemical bath deposition fabrication process. The as-prepared H2 WO4 material showed a rose-like morphology and after annealing the obtained WO3 sample was porous with oxygen defects. XRD, SEM, TEM, XPS and some other methods were used to characterize the samples. A possible growth mechanism was given depending on the characterization results. The addition of SDBS resulted in simultaneous growth of numerous H2 WO4 nuclei, which caused a uniform distribution. Compared with normal WO3, the as-fabricated porous rose-like WO3 showed higher stability to photocorrosion and a narrower band gap.