Ag3PW12O40/C3N4 nanocomposites as an efficient photocatalyst for hydrocarbon selective oxidation

作者：Zhang, Yalin; Hu, Lulu; Zhao, Shunyan; Liu, Naiyun; Bai, Liang; Liu, Juan^*; Huang, Hui^*; Liu, Yang^*; Kang, Zhenhui

来源：RSC Advances, 2016, 6(65): 60394-60399.

DOI：10.1039/c6ra09235g

• GRAPHITIC CARBON NITRIDE
• ADIPIC ACID
• WATER
• POLYOXOMETALATE
• DEGRADATION
• TOLUENE
• GREEN
• SOLAR
• H2O2

Ag3PW12O40/C3N4 nanocomposites were successfully synthesized by loading Ag3PW12O40 into C3N4, in which case Ag3PW12O40 is gained through reaction between AgNO3 and H3PW12O40 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 degrees 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 (H2O2) in the catalysis process can be produced by the irradiation of C3N4 and then decomposed into HO center dot with the help of Ag3PW12O40. The observed improvement in the activities of photo-induced oxidation of cyclooctene and cyclohexane is mainly attributed to the high BET surface area of C3N4. With the synergistic effect of Ag3PW12O40 and C3N4, the nanocomposite displays considerable catalytic activity, which sheds light on the catalyst design applied in the selective oxidation of hydrocarbon.

• 出版日期2016
• 单位苏州大学