Page 153 - 《精细化工》2021年第11期
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第 38 卷第 11 期                            精   细   化   工                                 Vol.38, No.11
             2021 年 11 月                             FINE CHEMICALS                                 Nov.  2021


              功能材料
                  WO /Bi WO 复合薄膜的制备及其光电化学性能
                                2
                                        6
                         3
                                                     *
                                                                                       *
                                 彭兵兵,宦克为 ,肖   楠,尹笑乾,杨继凯
                                         (长春理工大学  理学院,吉林  长春  130000)


                 摘要:以导电玻璃为基底采用水热法制备了 WO 3 纳米片薄膜,再通过溶剂热法改变不同溶剂热反应时间(6、8
                 和 10 h)在 WO 3 纳米片薄膜上生长 Bi 2 WO 6 制备了 WO 3 /Bi 2 WO 6 复合薄膜。利用 XRD、SEM、UV-Vis、光电流、
                 光电催化和交流阻抗对 WO 3 /Bi 2 WO 6 复合薄膜的结构和光电性能进行表征与测定。结果表明,WO 3 纳米片薄膜
                                        2
                 的光电流密度为 0.74 mA/cm ,对质量浓度为 6.0 mg/L 亚甲基蓝的光电催化效率为 47.9%。不同 WO 3 /Bi 2 WO 6
                 复合薄膜的光电化学性能均优于单一 WO 3 纳米薄膜,且溶剂热反应时间为 8 h 的 WO 3 /Bi 2 WO 6 复合薄膜具有最
                                        2
                 高的光电流密度(1.22 mA/cm )和最优的光电催化效率(58.6%)。WO 3 /Bi 2 WO 6 复合薄膜有效降低了复合薄膜
                 内部电子阻抗,增加了有效光电化学反应位点,显著提升了光电化学性能。
                 关键词:WO 3 /Bi 2 WO 6 复合薄膜;水热法;溶剂热法;光电流;光电催化;功能材料
                 中图分类号:O643;TQ426      文献标识码:A      文章编号:1003-5214 (2021) 11-2299-07


                              Preparation and photoelectrochemical properties of

                                         WO 3/Bi 2WO 6 composite thin film

                                                        *
                                                                                             *
                            PENG Bingbing, HUAN Kewei , XIAO Nan, YIN Xiaoqian, YANG Jikai
                      (School of Science, Changchun University of Science and Technology, Changchun 130000, Jilin, China)

                 Abstract: WO 3 nanosheet thin film was prepared by hydrothermal method on conductive glass substrate,
                 and then WO 3/Bi 2WO 6 composite thin films were prepared by solvothermal method at different reaction
                 time (6, 8 and 10 h) via the grown of Bi 2WO 6 on WO 3 nanosheet film. The structure and photoelectric
                 properties of  WO 3/Bi 2WO 6 composite thin films were characterized and tested by  XRD,  SEM,  UV-Vis,
                 photocurrent,  photoelectrocatalysis and alternating current impedance. The results showed that the
                                                                       2
                 photocurrent density of WO 3 nanosheet thin film was 0.74 mA/cm , and the photoelectrocatalysis efficiency
                 of methylene blue  with mass concentration of 6.0 mg/L was  47.9%.  While the photoelectrochemical
                 properties of different WO 3/Bi 2WO 6 composite thin films were better than that of pure WO 3 nanosheet thin
                 film. Especially, the WO 3/Bi 2WO 6 composite thin film prepared at 8 h had the highest photocurrent density
                              2
                 of 1.22 mA/cm  and the best photoelectrocatalysis efficiency of 58.6%. The WO 3/Bi 2WO 6 composite thin
                 film effectively reduced the internal electronic impedance, increased the effective  photoelectrochemical
                 reaction sites, significantly enhanced the photoelectrochemical property.
                 Key words: WO 3/Bi 2WO 6 composite thin film; hydrothermal method; solvothermal method; photocurrent;
                 photoelectrocatalysis; functional materials


                 随着人民生活水平的提高,越来越多的环境污                          理有害物质     [9-10] 和构建太阳能电池      [11-14] 等方面得到
            染问题得到人们极大关注。如何快速有效解决环境                             广泛应用。氧化钨(WO 3 )作为一种 n 型半导体金
                                                     [1]
            污染成为关注热点。光电催化材料具有稳定 、低                             属氧化物,带隙宽度约为 2.75 eV,在可见光范围内
                 [2]
                               [3]
            成本 、无二次污染 等特性,在降解污水                    [4-8] 、处    能激发其光学活性,还具有稳定的物理化学特性以

                 收稿日期:2021-05-13;  定用日期:2021-07-26; DOI: 10.13550/j.jxhg.20210484
                 基金项目:吉林省科技发展计划项目(20190701024GH,20200201077JC)
                 作者简介:彭兵兵(1998—),男,硕士生,E-mail:pbb199807@163.com。联系人:宦克为(1982—),男,副教授,E-mail:
                 huankewei@126.com;杨继凯(1982—),男,副教授,E-mail:jikaiyang0625@163.com。
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