Influences of pH on the structure and photo-catalytic capability of hydrothermal synthesized Bi2WO6

doi:10.11894/1005-829x.2018.38(7).040

INDUSTRIAL WATER TREATMENT ›› 2018, Vol. 38 ›› Issue (7): 40-45. doi: 10.11894/1005-829x.2018.38(7).040

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Influences of pH on the structure and photo-catalytic capability of hydrothermal synthesized Bi₂WO₆

Zhang Xianghui

Henan Province Key Laboratory of Electromagnetic Transformation and Detection, College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471934, China

Received:2018-04-25 Online:2018-07-20 Published:2018-08-02

pH对水热合成Bi₂WO₆的结构和光催化性能的影响

张相辉

洛阳师范学院物理与电子信息学院, 河南省电磁变换与探测重点实验室, 河南洛阳 471934

作者简介:张相辉(1983-),博士,讲师。E-mail:zxhlynu@163.com。
基金资助:
国家自然科学基金项目（51471082，61404071）；河南省高等学校重点科研项目（15A430001）；洛阳师范学院国家级基金培育项目（2014-PYJJ-002）

Abstract

Abstract: Bi₂WO₆ nano-materials have been synthesized by one step hydrothermal method at 160℃,using Bi(NO₃)₃·5H₂O and Na₂WO₄·2H₂O as raw materials,NaOH as pH regulator,and the prepared Bi₂WO₆ materials characterized. The influences of predecessor pH on the photo-catalytic capabilities of Bi₂WO₆ nano-materials have been investigated. The results indicate that pH has comparatively great influences on all the phase structure,optical property,specific surface area and photocatalytic capability of the prepared Bi₂WO₆ samples. When pH=9,the Bi₂WO₆ photo-catalytic effect is the best. After being irradiated for 120 min under xenon lamp,the MB degradation rate reaches 80.9%,and after being irradiated for 180 min,RhB degradation rate reaches 84.7%.

Key words: Bi₂WO₆, hydrothermal method, photo-catalytic capability

摘要： 以Bi（NO₃）₃·5H₂O和Na₂WO₄·2H₂O为原料，NaOH为pH调节剂，采用一步水热法在160℃合成出了Bi₂WO₆纳米材料，对所制备Bi₂WO₆材料进行了表征。并考察了前驱物pH对Bi₂WO₆材料光催化性能的影响。结果表明，pH对制得Bi₂WO₆样品的晶相结构、光学性质、比表面积以及催化性能都有较大影响。pH=9时，Bi₂WO₆光催化效果最佳，在氙灯照射120 min后，MB的降解率达到80.9%，照射180 min后，RhB的降解率达到84.7%。

关键词: Bi₂WO₆, 水热法, 光催化性能

CLC Number:

O646.36
X703

Zhang Xianghui. Influences of pH on the structure and photo-catalytic capability of hydrothermal synthesized Bi₂WO₆[J]. INDUSTRIAL WATER TREATMENT, 2018, 38(7): 40-45.

张相辉. pH对水热合成Bi₂WO₆的结构和光催化性能的影响[J]. 工业水处理, 2018, 38(7): 40-45.

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Influences of pH on the structure and photo-catalytic capability of hydrothermal synthesized Bi₂WO₆

pH对水热合成Bi₂WO₆的结构和光催化性能的影响

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