title: Highly efficient Ag₂O/Bi₂O₂CO₃ p-n heterojunction photocatalysts with improved visible-light responsive activity.
abstract: Ag2O/Bi2O2CO3 p-n heterojunctions are prepared with commercial Bi2O2CO3 as precursor via a simple photosynthesis process. The obtained Ag2O/Bi2O2CO3 p-n heterojunctions show higher photocatalytic activity than that of pure n-Bi2O2CO3, and the obtained Ag2O/Bi2O2CO3 (AB-4) heterojunction exhibits the best photocatalytic activity under visible light (λ > 400 nm), with which Rhodamine B, methyl blue and methyl orange can be completely degraded within 12 min. Photoluminescent spectra and photoelectrochemical measurement further indicate that the Ag2O/Bi2O2CO3 p-n heterojunctions greatly enhance the charge generation and suppress the charge recombination of photogenerated electron-hole pairs, which would be beneficial to improve their photocatalytic activity.
authors: School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University , Shanghai 200240, P. R. China.
authors: Na
authors: N
authors: Liang
authors: Min
authors: M
authors: Wang
authors: Lun
authors: L
authors: Jin
authors: Shoushuang
authors: S
authors: Huang
authors: Wenlong
authors: W
authors: Chen
authors: Miao
authors: M
authors: Xu
authors: Qingquan
authors: Q
authors: He
authors: Jiantao
authors: J
authors: Zai
authors: Nenghu
authors: N
authors: Fang
authors: Xuefeng
authors: X
authors: Qian