Sponsor(s): Chemical Industry and Engineering Society of China; Chemical Industry Press
12 issues per year
Current Issue: Issue 04, 2020
CIESC Journal is supervised by China Association for Science and Technology and sponsored by Chemical Industry and Engineering Society of China, and Chemical Industry Press. The predecessor of the journal is Journal of China Chemical Industry Association launched in 1923 and Chemical Engineering launched in 1934. The journal aims at reflecting the major achievements of fundamental research and application in chemical and engineering and other related fields, as well as new technologies and methods. Its scope covers thermodynamics, separation engineering, process system engineering, bio-engineering and chemical engineering, energy and environmental engineering, material chemical engineering and nanotechnology, and modern chemical technology. The journal is included in CA, JST, Pж(AJ), EI, CSCD.
Director: Zhao Yingli
CIESC Journal,2020,Vol 71,No. 04
Using ammonium tungstate, cerium nitrate hexahydrate, and urea as raw materials, CeO 2–WO 3/g-C 3N 4 catalyst was prepared by the melting method, and the samples were characterized by XRD, UV–Vis, TEM, PL, and XPS. XRD characterization results show that the introduction of CeO 2 can improve the dispersion of active component WO 3 on g-C 3N 4. XPS characterization indicates the good oxygen storage and release capacity of Ce 4+/Ce 3+ is conducive to the formation of oxygen vacancy and reactive oxygen species. The PL characterization also indicates that the introduction of CeO 2 can capture electrons and thus inhibits photogenic electron–hole pair recombination. The introduction of CeO 2 for the catalytic activity of compound photocatalysis was investigated by oxidation and desulfurization experiment, the high-pressure sodium lamp was used to simulate visible light source, using the mixture of n-heptane and dibenzothiophene (DBT) as a simulation oil. Experimental results show that in the reaction conditions of 80 °C, O/S molar ratio 5.0, 5% (mass fraction) CeO 2 payload, 180 min, the conversion rate of DBT in n-heptane under the catalysis of CeO 2-WO 3/g-C 3N 4 is 86.4%, higher than that under the catalysis of WO 3/g-C 3N 4 (72.9%). The characterization results and oxidation desulfurization experiments show that the introduced CeO 2 can interact well with WO 3/g-C 3N 4, thus improving the activity of the composite photocatalyst.