Ag3PW12O40/C3N4 nanocomposites as an efficient photocatalyst for hydrocarbon selective oxidation. Issue 65 (23rd June 2016)

• Record Type: Journal Article
• Authors: Zhang, Yalin; Hu, Lulu; Zhao, Shunyan; Liu, Naiyun; Bai, Liang; Liu, Juan; Huang, Hui; Liu, Yang; Kang, Zhenhui
• Is Part Of: RSC advances. Volume 6:Issue 65(2016)
• Page Start: 60394
• Page End: 60399
• Publication Date: 2016-06-23
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra09235g
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Ag3 PW12 O40 /C3 N4 nanocomposites were successfully synthesized by loading Ag3 PW12 O40 into C3 N4, in which case Ag3 PW12 O40 is gained through reaction between AgNO3 and H3 PW12 O40 at room temperature. Abstract : Ag3 PW12 O40 /C3 N4 nanocomposites were successfully synthesized by loading Ag3 PW12 O40 into C3 N4, in which case Ag3 PW12 O40 is gained through reaction between AgNO3 and H3 PW12 O40 at room temperature. The obtained nanocomposites show efficient and light-operated catalytic activity for hydrocarbon selective oxidation (selective oxidation of cyclooctene and cyclohexane) without adding any oxidant at 60 °C. For cyclooctene, the conversion based on cyclooctene is 41.26%, and the selectivity of selective oxidation to epoxycyclooctane can be up to 77.2%. The nanocomposite catalyst yielded oxidation of cyclohexane to cyclohexanone with 8.62% efficiency and >99.0% selectivity. In the catalytic system, the oxidant (H2 O2 ) in the catalysis process can be produced by the irradiation of C3 N4 and then decomposed into HO· with the help of Ag3 PW12 O40 . The observed improvement in the activities of photo-induced oxidation of cyclooctene and cyclohexane is mainly attributed to the high BET surface area of C3 N4 . With the synergistic effect of Ag3 PW12 O40 and C3 N4, the nanocomposite displays considerable catalytic activity, which sheds light on the catalyst design applied in the selective oxidation of hydrocarbon.