期刊
INORGANIC CHEMISTRY FRONTIERS
卷 7, 期 16, 页码 2969-2978出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0qi00673d
关键词
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资金
- National Natural Science Foundation of China [21776059, 21376061]
- Natural Science Foundation for Distinguished Young Scholar of Hebei Province [B2015208010]
- Foundation for the Returned Overseas Chinese Scholars of Hebei Province [CL201609]
In this paper, a novel ionic liquid-assisted solvothermal method to prepare Cl-doped bismuth oxycarbonate (Bi2O2CO3) is presented. The ionic liquid of [Hnmp]Cl not only enhances the solvothermal process to help the formation of Bi2O2CO3, but also provides chloride element as a dopant. XRD and XPS show that all three samples are Bi(2)O(2)CO(3)with high purity. XPS, solid EPR, and TEM results prove that Cl is doped into the Bi(2)O(2)CO(3)lattice and oxygen vacancies are generated. DRS results show that after Cl doping, the absorption of visible light by Bi(2)O(2)CO(3)is enhanced. Surface photovoltage (SPV) and transient photocurrent tests show that as the doping amount of Cl increases, the separation efficiency of photogenerated electron-hole pairs over Bi(2)O(2)CO(3)improves. The photocatalytic activity of Bi(2)O(2)CO(3)is evaluated by the degradation of rhodamine B, which is increased after Cl doping. This work would broaden the application of ionic liquids in the solvothermal process and deepen the understanding of anionic ion doping in Bi2O2CO3.
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