| 光谱学与光谱分析 |
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| Preparation, Characterization and Photocatalysis of Bi2WO6 Nanocrystals |
| XIA Jia-wei, ZHANG Yue, LU Lei, HAN Qiao-feng* |
| Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China |
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Abstract In the present study, bismuth tungstate(Bi2WO6) nanocrystals were prepared by the hydrothermal method using bismuth nitrate (Bi(NO3)3·5H2O) and sodium tungstate (Na2WO4·2H2O) as raw materials at 150 ℃ for 24 h. The powder X-ray diffraction (XRD) pattern shows that the Bi2WO6 nanocrystals belong to the orthorhombic phase with calculated lattice constants a=5.457 Å, b=16.435 Å and c=5.438 Å. The X-ray photoelectron spectra (XPS) indicate that the obtained Bi2WO6 was pure. The photocatalytic activity of the nanocrystal prepared by using water, N, N-dimethyl formamide (DMF) and ethylene glycol (EG) as the solvent respectively were studied for the degradation of rhodamine B under visible light irradiation. The results show that Bi2WO6 sample obtained in EG has the best photocatalytic activity mainly owing to good dispersion, small particle size and broader spectrum response for visible light. In addition, the influence of pH and surfactant on the Bi2WO6 photocatalytic activity was also studied. The results show that Bi2WO6 sample has better photocatalytic activity when prepared at 150 ℃ and pH 1.0 with sodium dodecylsulfate (SDS) as the surfactant. The photoluminescence (PL) spectra of the prepared Bi2WO6 reveal that the recombination of photo-generated electrons and holes was inhibited over Bi2WO6 prepared with SDS and thus its photocatalytic ability was enhanced.
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Received: 2012-09-27
Accepted: 2012-11-10
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Corresponding Authors:
HAN Qiao-feng
E-mail: hanqiaofeng@njust.edu.cn
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[1] Bangkedphol S，Keenan H E，Davidson C M，et al. Journal of Hazardous Materials，2010，184(1-3)：533.
[2] Barka N，Qourzal S，Assabbane A，et al. Chemical Engineering Communications，2011，198(10)：1233.
[3] LIU Ying，WANG Wei-min，FU Zheng-yi，et al(刘 瑛，王为民，傅正义，等). Journal of Inorganic Materials(无机材料学报)，2011，26(11)：1170.
[4] Yang Xiaohui，Song Xiuqin，Wei Yu，et al. Journal of Nanoscience and Nanotechnology，2011，11(12)：10369.
[5] Kim Jiyoung，Kim Chansoo，Chang Han-kwon，et al. Advanced Powder Technology，2010，21(2)：141.
[6] Tong Haixia，Chen Qiyuan，Zhao Li，et al. Integrated Ferroelectrics，2011，127(1)：63.
[7] Cao Linglin，Yuan Jian，Chen Mingxia，et al. Journal of Environmental Sciences，2010，22(3)：454.
[8] YU Chang-lin，YANG Kai，SHU Qing，et al(余长林，杨 凯，舒 庆，等). Chinese Journal of Catalysis(催化学报)，2011，32: 555.
[9] Zhou Min，Zhang Shudong，Sun Yongfu，et al. Chemistry-An Asian Journal，2010，5(12)：2515.
[10] HUANG Yi，SHEN Yue，WU Ji-huai，et al(黄 毅，申 玥，吴季怀，等). Journal of Functional Materials(功能材料)，2010，1(41)：52.
[11] ZHANG Hao，WANG Chun-ying，LI Fang，et al(张 豪，王春英，李 方，等). China Environmental Science(中国环境科学)，2010，30(12)：1608.
[12] HUANG Yu，AI Zhihui，HO Wingkei，et al. The Journal of Physical Chemistry，2010，114(14)：6342.
[13] Wang Danjun，Xue Guanglin，Zhen Yanzhong，et al. Journal of Materials Chemistry，2012，22: 4751. |
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