Improve the structure through pH-control to improve the photocatalytic performance of cubic silver phosphate photocatalyst. Issue 9 (1st July 2022)

• Record Type: Journal Article
• Authors: Wang, Jin; Cai, Yongfeng; Du, Hanxiao; Shen, Yi; Li, Fengfeng; Liu, Zuotao; Liu, Yunfeng; Peng, Chao
• Is Part Of: Journal of dispersion science and technology. Volume 43:Issue 9(2022)
• Page Start: 1399
• Page End: 1404
• Publication Date: 2022-07-01
• Subjects: Ag3PO4 -- silver ammonia solution -- pH -- crystal growth -- microstructure; Emulsions -- Periodicals; Suspensions (Chemistry) -- Periodicals; Emulsions; Suspensions; 541.34
• DOI: 10.1080/01932691.2020.1869030
• Languages: English
• ISSNs: 0193-2691

Abstract

Abstract: Through adjusting the pH of the silver ammonia solution (Ag(NH3 )2 OH), different microstructure of silver phosphate (Ag3 PO4 ) was prepared via simple precipitation method. The effect of pH on the microstructure and photocatalytic properties was studied. Preliminary results indicate that the pH of silver ammonia solution played a key role in crystal growth and microstructure of Ag3 PO4 . When the pH is 9, the preferential crystal growth of the Ag3 PO4 oriented along the (1 1 0) crystal surface. Thus, the cubic Ag3 PO4 shows excellent photocatalytic properties. Based on the Ostwald's ripening rule, a possible formation mechanism of cubic Ag3 PO4 was proposed. Graphical Abstract: UF0001 Highlights: Controlling the microstructure of Ag3 PO4 through pH-control of the silver ammonia solution. When the pH of the silver ammonia solution is 9, the preferential crystal growth of the Ag3 PO4 oriented along the (1 1 0) crystal surface. Based on the Ostwald's ripening rule, a possible formation mechanism of cubic Ag3 PO4 was proposed.