Abstract：The sulfur- and chlorine-co-doped g-C3N4 nanosheets were prepared by the bubble template method. The as-prepared samples were detected by XRD, FT-IR, XPS, SEM, UV-Vis DRS, and PL. The photocatalytic activities of samples were evaluated under visible by the photocatalytic degradation of rhodamine B (RhB). The analysis showed that the modified sulfur- and chlorine-co-doped g-C3N4 nanosheets had a larger specific surface area, the electron-hole separation efficiency was improved, and the doping caused a change in the energy band structure so that the oxidant that degrades RhB was reduced from the single ·O2- becomes ·O2- and ·OH- dual oxidants, which greatly improved the degradation ability. The RhB degradation rate constant of sulfur and chlorine co-doped g-C3N4 nanosheets arrived at 0.01683min-1, which was 5.5times higher than that of pure g-C3N4.
刘源, 赵华, 李会鹏, 蔡天凤. 硫氯共掺杂g-C3N4纳米片光催化降解染料[J]. 中国环境科学, 2021, 41(10): 4662-4669.
LIU Yuan, ZHAO Hua, LI Hui-peng, CAI Tian-feng. Photocatalytic degradation of dyes by sulfur- and chlorine-co-doped g-C3N4 nanosheets. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(10): 4662-4669.
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