异质结构钒酸铋/氧化铋可见光催化材料的制备及性能
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摘要
针对可见光催化材料大部分半导体光量子效率较低、光催化活性较差的问题,制备了一种新的异质结构钒酸铋/氧化铋可见光催化材料,并对其性能进行测试。通过制备钒酸铋-氧化铋复合光催化材料,分析制备材料表征分析方法,对可见光催化材料进行XDR分析、SEM分析、紫外-可见漫反射吸收光谱分析和荧光光谱分析,对制备材料降解性能和稳定性进行检测。结果表明XDR分析中,随着钒酸铋成分的逐渐升高,氧化铋衍射峰慢慢降低,钒酸铋衍射峰慢慢增强,图谱中没有出现其余衍射峰,钒酸铋和氧化铋间未出现显著的化学反应; SEM分析中,制备样本颗粒形貌与微观结构存在显著差异,晶粒形貌更加规则;紫外-可见漫反射吸收光谱分析中,异质结构钒酸铋/氧化铋可见光催化材料样本对可见光的吸收效果最优;荧光光谱分析中,随着添加钒酸铋质量分数的逐渐增加,荧光信号逐渐变弱;随着添加钒酸铋质量分数的逐渐增加,降解率逐渐升高,但添加质量分数是12%与20%钒酸铋的制备样本光催化活性相差不大;重复使用制备样本后其光催化性能基本没有发生改变,对光照反应后制备样本及纯钒酸铋样本进行XRD分析,发现无新衍射峰值出现。可见此时制备样本降解性能较强,稳定性较高。
Aiming at the problem that the photocatalytic activity of most semiconductors is low and the photocatalytic activity is poor,a new heterostructure yttrium vanadate/yttrium oxide visible light catalytic material is prepared and its performance is tested. By preparing yttrium vanadate-yttria composite photocatalytic material,the method of characterization and analysis of prepared materials was analyzed. XDR analysis,SEM analysis,UV-visible diffuse absorption spectroscopy and fluorescence spectroscopy were performed on the visible light catalytic materials,and the degradation properties of the prepared materials were stability is tested. The results show that in the XDR analysis,with the gradual increase of the yttrium vanadate component,the diffraction peak of yttrium oxide decreases slowly,and the diffraction peak of yttrium vanadate slowly increases. The remaining diffraction peaks do not appear in the spectrum,and the yttrium vanadate and yttrium oxide are not significant chemical reactions occurred; In the SEM analysis,the morphology and microstructure of the prepared samples were significantly different,and the grain morphology was more regular. In the UV-visible diffuse reflectance absorption spectrum analysis,the heterostructured bismuth vanadate/cerium oxide visible light catalysis the absorption of visible light is optimal in the material samples; In the fluorescence spectrum analysis,the fluorescence signal gradually weakens with the increase of the mass fraction of yttrium vanadate. The degradation rate increases with the increase of the mass fraction of yttrium vanadate. However,The added mass fraction is similar to The photocatalytic activity of the prepared sample of 12% and 20% bismuth vanadate; the photocatalytic performance of the prepared sample is not changed after repeated use,and the sample and the pure bismuth vanadate sample are prepared after the light reaction. XRD analysis was performed and no new diffraction peaks were observed. It can be seen that the prepared sample has strong degradation performance and high stability.
Aiming at the problem that the photocatalytic activity of most semiconductors is low and the photocatalytic activity is poor,a new heterostructure yttrium vanadate/yttrium oxide visible light catalytic material is prepared and its performance is tested. By preparing yttrium vanadate-yttria composite photocatalytic material,the method of characterization and analysis of prepared materials was analyzed. XDR analysis,SEM analysis,UV-visible diffuse absorption spectroscopy and fluorescence spectroscopy were performed on the visible light catalytic materials,and the degradation properties of the prepared materials were stability is tested. The results show that in the XDR analysis,with the gradual increase of the yttrium vanadate component,the diffraction peak of yttrium oxide decreases slowly,and the diffraction peak of yttrium vanadate slowly increases. The remaining diffraction peaks do not appear in the spectrum,and the yttrium vanadate and yttrium oxide are not significant chemical reactions occurred; In the SEM analysis,the morphology and microstructure of the prepared samples were significantly different,and the grain morphology was more regular. In the UV-visible diffuse reflectance absorption spectrum analysis,the heterostructured bismuth vanadate/cerium oxide visible light catalysis the absorption of visible light is optimal in the material samples; In the fluorescence spectrum analysis,the fluorescence signal gradually weakens with the increase of the mass fraction of yttrium vanadate. The degradation rate increases with the increase of the mass fraction of yttrium vanadate. However,The added mass fraction is similar to The photocatalytic activity of the prepared sample of 12% and 20% bismuth vanadate; the photocatalytic performance of the prepared sample is not changed after repeated use,and the sample and the pure bismuth vanadate sample are prepared after the light reaction. XRD analysis was performed and no new diffraction peaks were observed. It can be seen that the prepared sample has strong degradation performance and high stability.
引文
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10 单爽,杨占旭.四角星形BiVO4/Bi2O3催化剂的制备及性能[J].无机化学学报,2016,32(4):649-654Shan Shuang,Yang Zhanxu. Preparation and performance of four angle star-like BiVO4/Bi2O3catalyst[J]. Chinese Journal of Inorganic Chemistry,2016,32(4):649-654
11 崔玉民,李慧泉,苗慧,等.卤氧化铋与半导体光催化剂偶合研究新进展[J].光谱学与光谱分析,2016,36(8):2579-2584Cui Yumin,Li Huiquan,Miao Hui,et al. The latest research progress of coupling between BiOX and semiconductor photocatalyst[J]. Spectroscopy and Spectral Analysis, 2016, 36(8):2579-2584
12 何志桥,陈锦萍,童丽丽,等. BiOCl/g-C3N4异质结催化剂可见光催化还原CO2[J].化工学报,2016,67(11):4634-4642He Zhiqiao,Chen Jinping,Tong Lili,et al. BiOCl/g-C3N4heterojunction catalyst for efficient photocatalytic reduction of CO2under visible light[J]. CIESC Jorunal,2016,67(11):4634-4642
13 于谦,叶红齐,覃涛,等.水热法制备BiVO4及其光催化性能研究[J].应用化工,2014,43(4):600-606Yu Qian,Ye Hongqi,Tan Tao,et al. Hydrothermal synthesis and photocatalytic performance of BiVO4[J]. Applied Chemical Industry,2014,43(4):600-606
14 李玲玲,倪刚,王嘉楠,等. BiOCl/CQDs复合催化剂的制备及光催化性能研究[J].功能材料,2016,47(4):134-138Li Lingling,Ni Gang,Wang Jianan,et al. Study on the synthesis and photocatalytic activity of BiOCl/CQDs complex photocatalysts[J]. Journal of Functional Materials,2016,47(4):134-138
15 肖国生,刘佳露,刘卓婧,等. Ce掺杂Bi2O3光催化剂的制备、表征及其可见光催化性能[J].发光学报,2014,35(8):956-963Xiao Guosheng,Liu Jialu,Liu Zhuojing,et al. Preparation,characterization and visible-light-responsive photocatalytic activity of cerium-doped bismuth oxide[J]. Chinese Journal of Luminescence,2014,35(8):956-963
16 Singh A P,Kodan N,Dey A,et al. Improvement in the structural,optical,electronic and photoelectrochemical properties of hydrogen treated bismuth vanadate thin films[J]. International Journal of Hydrogen Energy,2015,40(12):4311-4319
17 胡代弟,董素鸽.远程实验信息数据采集方法研究仿真[J].计算机仿真,2017,34(4):186-189Hu Daidi,Dong Suge. Simulation of the remote experiment data collection method research[J]. Computer Simulation,2017,34(4):186-189
18 王小燕,张丽敏.基于大数据的数据挖掘引擎研究[J].电子设计工程,2017,25(15):31-34Wang Xiaoyan,Zhang Limin. Research on data mining engine based on big data[J]. Electronic Design Engineering,2017,25(15):31-34
20 周剑,李跃新.基于片上系统协同计算的实时数据自动检测电化学传感器[J].计算机测量与控制,2016,24(3):11-13Zhou Jian,Li Yuexin. Real-time data automatic detection based on collaborative computing of chip system for electrochemical sensor[J]. Computer Measurement&Control,2016,24(3):11-13
2 张晓君,崔巍,焦孟杰,等.高催化效率钒酸铋可见光催化剂的制备及性能研究[J].人工晶体学报,2015; 44(11):3047-3050Zhang Xiaojun,Cui Wei,Jiao Mengjie,et al. Preparation and properties of BiVO4visible light photocatalyst with highly efficient catalytic activity[J]. Journal of Synthetic Crystals,2015,44(11):3047-3050
3 周子凡,李娜,陈忻.异质结构BiVO4/Bi2O3纳米材料的制备及性能研究[J].科技通报,2017,33(8):15-18Zhou Zifan,Li Na,Chen Xin. Study on preparation and properties of heterogeneous BiVO4/Bi2O3nanomaterials[J]. Bulletin of Science and Technology,2017,33(8):15-18
4 Patil V J,Bhoge Y E,Patil U D,et al. Room temperature solution spray synthesis of bismuth vanadate nanopigment and its utilization in formulation of industrial OEM coatings[J]. Vacuum,2016,127(18):17-21
5 王军,伍水生,马博凯,等. BiOCl/Bi2O3异质结复合光催化剂的制备和光催化性能研究[J].材料导报,2015,29(6):26-30Wang Jun,Wu Shuisheng,Ma Bokai,et al. Preparation and photocatalytic performance of BiOCl/Bi2O3heterojunction photocatalysts[J]. Materials Review,2015,29(6):26-30
6 刘琼君,林碧洲,李培培,等. BiPO4/BiVO4复合材料的制备及可见光催化活性[J].高等学校化学学报,2017,38(1):94-100Liu Qiongjun,Lin Bizhou,Li Peipei,et al. Preparation of BiPO4/BiVO4composites with high visible-light photocatalytic activity[J].Chemical Journal of Chinese Universities,2017,38(1):94-100
7 全玉莲,耿世刚,陈恺立,等.制备条件对磷钨酸/BiPO4光催化性能的影响[J].科学技术与工程,2016,16(17):104-107Quan Yulian,Geng Shigang,Chen Kaili,et al. Effects of preparation process on photocatalytic activity of HPW/BiPO4[J]. Science Technology and Engineering,2016,16(17):104-107
8 黄建辉,林文婷,谢丽燕,等.石墨相氮化碳-碘氧化铋层状异质结的构建及其光催化杀菌性能[J].环境科学,2017,38(9):3979-3986Huang Jianhui,Lin Wenting,Xie Liyan,et al. Construction of graphitic carbon nitride-bismuth oxyiodide layered heterostructures and their photocatalytic antibacterial performance[J]. Environmental Science,2017,38(9):3979-3986
9 Brack P,Sagu J S,Peiris T A N,et al. Aerosol-assisted CVD of bismuth vanadate thin films and their photoelectrochemical properties[J]. Chemical Vapor Deposition,2015,21(1-3):41-45
10 单爽,杨占旭.四角星形BiVO4/Bi2O3催化剂的制备及性能[J].无机化学学报,2016,32(4):649-654Shan Shuang,Yang Zhanxu. Preparation and performance of four angle star-like BiVO4/Bi2O3catalyst[J]. Chinese Journal of Inorganic Chemistry,2016,32(4):649-654
11 崔玉民,李慧泉,苗慧,等.卤氧化铋与半导体光催化剂偶合研究新进展[J].光谱学与光谱分析,2016,36(8):2579-2584Cui Yumin,Li Huiquan,Miao Hui,et al. The latest research progress of coupling between BiOX and semiconductor photocatalyst[J]. Spectroscopy and Spectral Analysis, 2016, 36(8):2579-2584
12 何志桥,陈锦萍,童丽丽,等. BiOCl/g-C3N4异质结催化剂可见光催化还原CO2[J].化工学报,2016,67(11):4634-4642He Zhiqiao,Chen Jinping,Tong Lili,et al. BiOCl/g-C3N4heterojunction catalyst for efficient photocatalytic reduction of CO2under visible light[J]. CIESC Jorunal,2016,67(11):4634-4642
13 于谦,叶红齐,覃涛,等.水热法制备BiVO4及其光催化性能研究[J].应用化工,2014,43(4):600-606Yu Qian,Ye Hongqi,Tan Tao,et al. Hydrothermal synthesis and photocatalytic performance of BiVO4[J]. Applied Chemical Industry,2014,43(4):600-606
14 李玲玲,倪刚,王嘉楠,等. BiOCl/CQDs复合催化剂的制备及光催化性能研究[J].功能材料,2016,47(4):134-138Li Lingling,Ni Gang,Wang Jianan,et al. Study on the synthesis and photocatalytic activity of BiOCl/CQDs complex photocatalysts[J]. Journal of Functional Materials,2016,47(4):134-138
15 肖国生,刘佳露,刘卓婧,等. Ce掺杂Bi2O3光催化剂的制备、表征及其可见光催化性能[J].发光学报,2014,35(8):956-963Xiao Guosheng,Liu Jialu,Liu Zhuojing,et al. Preparation,characterization and visible-light-responsive photocatalytic activity of cerium-doped bismuth oxide[J]. Chinese Journal of Luminescence,2014,35(8):956-963
16 Singh A P,Kodan N,Dey A,et al. Improvement in the structural,optical,electronic and photoelectrochemical properties of hydrogen treated bismuth vanadate thin films[J]. International Journal of Hydrogen Energy,2015,40(12):4311-4319
17 胡代弟,董素鸽.远程实验信息数据采集方法研究仿真[J].计算机仿真,2017,34(4):186-189Hu Daidi,Dong Suge. Simulation of the remote experiment data collection method research[J]. Computer Simulation,2017,34(4):186-189
18 王小燕,张丽敏.基于大数据的数据挖掘引擎研究[J].电子设计工程,2017,25(15):31-34Wang Xiaoyan,Zhang Limin. Research on data mining engine based on big data[J]. Electronic Design Engineering,2017,25(15):31-34
20 周剑,李跃新.基于片上系统协同计算的实时数据自动检测电化学传感器[J].计算机测量与控制,2016,24(3):11-13Zhou Jian,Li Yuexin. Real-time data automatic detection based on collaborative computing of chip system for electrochemical sensor[J]. Computer Measurement&Control,2016,24(3):11-13