Ethylenediamine (EDA) - assisted hydrothermal synthesis of nitrogen-doped Bi₂WO₆ powders

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• 作者：Gangqiang Zhu^a ; ^{zgq2006@snnu.edu.cn" class="auth_mail} ; Jia Liang^a ; Mirabbos Hojamberdiev^b ; Sara Aldabe Bilmes^c ; Xiumei Wei^a ; Peng Liu^a ; Jianping Zhou^a
• 关键词：Semiconductors ; Nitrogen doping ; Hydrothermal synthesis ; Nanocrystalline materials ; Photocatalytic activity ; Visible light irradiation
• 刊名：Materials Letters
• 出版年：1 May, 2014
• 年：2014
• 卷：122
• 期：Complete
• 页码：216-219
• 全文大小：1715 K

文摘

Novel nitrogen-doped Bi₂WO₆ (N-BWO) powders were synthesized by an ethylenediamine-assisted hydrothermal method. The obtained results indicated that the N-BWO powders are composed of microstructures self-assembled from single-crystalline nanosheets. The doped nitrogen was substituted for oxygen in the crystal lattice of Bi₂WO₆, causing a red shift (from 2.82 to 2.63 eV) for N-BWO powders compared to pure BWO. The as-synthesized N-BWO powders exhibited an efficient visible light-induced photocatalytic activity toward the degradation of Rhodamine B (RhB) in aqueous solution due to their enhanced visible light absorption and special layered microstructures.