Z-机制磷酸银/钨酸铋复合物的构建及其可见光催化降解有机污染物

doi:10.1016/S1872-2067(17)62942-5

催化学报 ›› 2017, Vol. 38 ›› Issue (12): 2021-2029.DOI: 10.1016/S1872-2067(17)62942-5

Z-机制磷酸银/钨酸铋复合物的构建及其可见光催化降解有机污染物

王中辽^a, 胡太平^a, 代凯^a, 张金锋^a, 梁长浩^b

a 淮北师范大学物理与电子信息学院, 安徽能源材料重点实验室, 安徽淮北 235000;
b 中国科学院固体物理研究所, 材料物理重点实验室和安徽纳米材料和纳米技术重点实验室, 安徽合肥 230031

收稿日期:2017-09-19 修回日期:2017-10-12 出版日期:2017-12-18 发布日期:2017-12-29
通讯作者: 代凯, 张金锋
基金资助:
国家自然科学基金（51572103，51502106）；安徽省高等学校省级优秀青年人才基金（gxyqZD201751）.

Construction of Z-scheme Ag₃PO₄/Bi₂WO₆ composite with excellent visible-light photodegradation activity for removal of organic contaminants

Zhongliao Wang^a, Taiping Hu^a, Kai Dai^a, Jinfeng Zhang^a, Changhao Liang^b

a College of Physics and Electronic Information, Anhui Key Laboratory of Energetic Materials, Huaibei Normal University, Huaibei 235000, Anhui, China;
b Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, Anhui, China

Received:2017-09-19 Revised:2017-10-12 Online:2017-12-18 Published:2017-12-29
Supported by:
This work was supported by the National Natural Science Foundation of China (51572103, 51502106) and the Foundation for Young Talents in College of Anhui Province (gxyqZD201751).

摘要/Abstract

摘要：

环境危害不仅对人类健康构成巨大威胁，而且也阻碍了经济社会的快速发展.光催化剂通过利用太阳能来降解污染物为环境问题提供一条理想的途径.光催化剂的制备应该考虑以下几点：（1）对可见光响应；（2）高量子效率和稳定性；（3）安全、廉价、无毒的原材料.早期的一些催化剂如二氧化钛、氧化锌、硫化锌、锗酸锌和磷酸铋等在紫外线照射下表现出优秀的光催化活性.但是紫外光是稀有的，而且对人体健康有害.近年来，对宽带隙半导体的改性如掺杂、贵金属沉积、构建异质结或固溶体催化剂取得了有效进展.遗憾的是，受限于材料的固有属性，有限的改进仍然不能满足实际应用的需求.因此，探索高效稳定的可见光驱动的光催化剂依然是十分有意义的.环境危害不仅对人类健康构成巨大威胁，而且也阻碍了经济社会的快速发展.光催化剂通过利用太阳能来降解污染物为环境问题提供一条理想的途径.光催化剂的制备应该考虑以下几点：（1）对可见光响应；（2）高量子效率和稳定性；（3）安全、廉价、无毒的原材料.早期的一些催化剂如二氧化钛、氧化锌、硫化锌、锗酸锌和磷酸铋等在紫外线照射下表现出优秀的光催化活性.但是紫外光是稀有的，而且对人体健康有害.近年来，对宽带隙半导体的改性如掺杂、贵金属沉积、构建异质结或固溶体催化剂取得了有效进展.遗憾的是，受限于材料的固有属性，有限的改进仍然不能满足实际应用的需求.因此，探索高效稳定的可见光驱动的光催化剂依然是十分有意义的.
磷酸银在可见光下表现出超强的光催化降解有机污染物和产氧的能力，但是磷酸银容易受到光腐蚀，光催化活性和稳定性很难维持.另外，磷酸银导带上的电子电势较正，这将导致其很难在光催化过程中被利用.而磷酸银导带上电子的积累会抑制其内部电子空穴对的分离，从而对磷酸银的光催化活性和稳定性造成不利影响.
本文选择钨酸铋纳米片与磷酸银复合去抑制电子空穴对的复合和进一步提高磷酸银的活性和稳定性.样品的粉末X射线衍射、能谱和X光电子能谱的分析证实了磷酸银/钨酸铋复合物已经被成功合成.稳态荧光光谱证实了磷酸银/钨酸铋复合物的构建可以作为一种有效抑制电子和空穴对复合的手段.通过对样品进行光催化降解次甲基蓝的实验，我们发现磷酸银/钨酸铋复合材料展现出比磷酸银和钨酸铋更强的光催化活性.其中，磷酸银/钨酸铋光催化降解次甲基蓝的速率为0.61385 min^-1，这是磷酸银（0.47179 min^-1）和钨酸铋（0.10270 min^-1）活性的1.3和6.0倍.同时，磷酸银/钨酸铋表现出耐久的稳定性，在连续五次光降解过程中几乎没有明显的活性损失.进一步通过对磷酸银/钨酸铋复合材料进行光催化活性成分的捕获实验，我们发现空穴、超氧负离子自由基和羟基自由基都发挥了一定的作用.最后，我们讨论了光催化机制，Z-机制光催化机制被认为是合理的.

关键词: 磷酸银, 钨酸铋, 光催化剂, Z-机制, 降解, 可见光

Abstract:

Ag₃PO₄ has good potential for use in photocatalytic degradation of organic contaminants. However, the activity and stability of Ag₃PO₄ is hard to sustain because of photocorrosion and the positive potential of the conduction band of Ag₃PO₄. In this study, A composite consisting of Bi₂WO₆ nanosheets and Ag₃PO₄ was developed to curb recombination of charge carriers and enhance the activity and stability of the catalyst. Formation of a Ag₃PO₄/Bi₂WO₆ composite was confirmed using X-ray diffraction, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. Photoluminescence spectroscopy provided convincing evidence that compositing Bi₂WO₆ with Ag₃PO₄ effectively reduced photocorrosion of Ag₃PO₄. The Ag₃PO₄/Bi₂WO₆ composite gave a high photocatalytic performance in photodegradation of methylene blue. A degradation rate of 0.61 min^-1 was achieved; this is 1.3 and 6.0 times higher than those achieved using Ag₃PO₄ (0.47 min^-1) and Bi₂WO₆ (0.10 min^-1), respectively. Reactive species trapping experiments using the Ag₃PO₄/Bi₂WO₆ composite showed that holes, ·OH, and ·O₂^-all played specific roles in the photodegradation process. The photocatalytic mechanism was investigated and a Z-scheme was proposed as a plausible mechanism.

Key words: Ag₃PO₄, Bi₂WO₆, Photocatalysis, Z-scheme, Degradation, Visible light

王中辽, 胡太平, 代凯, 张金锋, 梁长浩. Z-机制磷酸银/钨酸铋复合物的构建及其可见光催化降解有机污染物[J]. 催化学报, 2017, 38(12): 2021-2029.

Zhongliao Wang, Taiping Hu, Kai Dai, Jinfeng Zhang, Changhao Liang. Construction of Z-scheme Ag₃PO₄/Bi₂WO₆ composite with excellent visible-light photodegradation activity for removal of organic contaminants[J]. Chinese Journal of Catalysis, 2017, 38(12): 2021-2029.

×
扫码分享

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.cjcatal.com/CN/10.1016/S1872-2067(17)62942-5

https://www.cjcatal.com/CN/Y2017/V38/I12/2021

参考文献

[1] Z. G. Yi, J. H. Ye, N. Kikugawa, T. Kako, S. Ouyang, H. Stu-art-Williams, H. Yang, J. Y. Cao, W. J. Luo, Z. S. Li, Y. Liu, R. L. With-ers, Nat. Mater., 2010, 9, 559-564.
[2] K. Dai, L. H. Lu, C. H. Liang, Q. Liu, G. P. Zhu, Appl. Catal. B, 2014, 156-157, 331-340.
[3] D. F. Xu, B. Cheng, S. W. Cao, J. G. Yu, Appl. Catal. B, 2015, 164, 380-388.
[4] J. J. Liu, B. Cheng, J. G. Yu, Phys. Chem. Chem. Phys., 2016, 18, 31175-31183.
[5] K. Dai, L. H. Lu, Q. Liu, G. P. Zhu, Q. Z. Liu, Z. L. Liu, Dalton Trans., 2014, 43, 2202-2210.
[6] L. L. Yin, M. Zhao, H. L. Hu, J. H. Ye, D. F. Wang, Chin. J. Catal., 2017, 38, 1307-1314.
[7] F. Y. Tian, D. F. Hou, F. C. Hu, K. Xie, X. Q. Qiao, D. S. Li, Appl. Surf. Sci., 2017, 391, 295-302.
[8] F. Y. Xu, W. Xiao, B. Cheng, J. G. Yu, Int. J. Hydrogen Energy, 2014, 39, 15394-15402.
[9] K. Dai, G. Dawson, S. Yang, Z. Chen, L. H. Lu, Chem. Eng. J., 2012, 191, 571-578.
[10] J. J. Kong, X. D. Lai, Z. Rui, H. B. Ji, S. F. Ji, Chin. J. Catal., 2016, 37, 869-877.
[11] J. Z. Su, T. Zhang, L. Wang, J. W. Shi, Y. B. Chen, Chin. J. Catal., 2017, 38, 489-497.
[12] L. Yu, R. J. Zou, Z. Y. Zhang, G. S. Song, Z. G. Chen, J. M. Yang, J. Q. Hu, Chem. Commun., 2011, 47, 10719-10721.
[13] H. Lv, Y. M. Liu, H. B. Tang, P. Zhang, J. J. Wang, Appl. Surf. Sci., 2017, 425, 100-106.
[14] J. Q. Li, H. Yuan, Z. F. Zhu, Appl. Surf. Sci., 2016, 385, 34-41.
[15] J. W. Fu, B. C. Zhu, C. J. Jiang, B. Cheng, W. You, J. G. Yu, Small, 2017, 13, 1603938.
[16] J. Zhang, S. W. Liu, J. G. Yu, M. Jaroniec, J. Mater. Chem., 2011, 21, 14655.
[17] B. C. Zhu, J. F. Zhang, C. J. Jiang, B. Cheng, J. G. Yu, Appl. Catal. B, 2017, 207, 27-34.
[18] B. Sarma, B. K. Sarma, Appl. Surf. Sci., 2017, 410, 557-565.
[19] H. G. Yu, W. Y. Chen, X. F. Wang, Y. Xu, J. G. Yu, Appl. Catal. B, 2016, 187, 163-170.
[20] J. X. Low, J. G. Yu, M. Jaroniec, S. Wageh, A. A. Al-Ghamdi, Adv. Mater., 2017, 29, 1601694.
[21] J. L. Lv, J. F. Zhang, K. Dai, C. H. Liang, G. P. Zhu, Z. L. Wang, Z. Li, Dalton Trans., 2017, 46, 11335-11343.
[22] X. Y. Sun, R. Wang, D. S. Su, Chin. J. Catal., 2013, 34, 508-523.
[23] K. Dai, L. H. Lu, C. H. Liang, G. P. Zhu, Q. Z. Liu, L. Geng, J. Q. He, Dalton Trans., 2015, 44, 7903-7910.
[24] K. Dai, L. H. Lu, Q. Liu, G. P. Zhu, X. Q. Wei, J. Bai, L. L. Xuan, H. Wang, Dalton Trans., 2014, 43, 6295-6299.
[25] J. Luo, X. S. Zhou, L. Ma, X. Y. Xu, Appl. Surf. Sci., 2016, 390, 357-367.
[26] J. F. Zhang, S. Wageh, A. Al-Ghamdi, J. G. Yu, Appl. Catal. B, 2016, 192, 101-107.
[27] Q. J. Xiang, B. Cheng, J. G. Yu, Appl. Catal. B, 2013, 138-139, 299-303.
[28] S. Farhadi, F. Siadatnasab, Chin. J. Catal., 2016, 37, 1487-1495.
[29] K. Dai, L. H. Lu, C. H. Liang, G. P. Zhu, L. Geng, RSC Adv., 2014, 4, 62751-62758.
[30] N. Guo, H. Y. Li, X. J. Xu, H. W. Yu, Appl. Surf. Sci., 2016, 389, 227-239.
[31] C. S. Zhu, L. Zhang, B. Jiang, J. T. Zheng, P. Hu, S. J. Li, M. B. Wu, W. T. Wu, Appl. Surf. Sci., 2016, 377, 99-108.
[32] Z. L. Wang, J. F. Zhang, J. L. Lv, K. Dai, C. H. Liang, Appl. Surf. Sci., 2017, 396, 791-798.
[33] J. Jin, J. G. Yu, D. P. Guo, C. Cui, W. K. Ho, Small, 2015, 11, 5262-5271.
[34] K. L. He, J. Xie, X. Y. Luo, J. Q. Wen, S. Ma, X. Li, Y. P. Fang, X. C. Zhang, Chin. J. Catal., 2017, 38, 240-252.
[35] Z. L. Wang, J. L. Lv, K. Dai, L. H. Lu, C. H. Liang, L. Geng, Mater. Lett., 2016, 169, 250-253.
[36] J. X. Low, J. G. Yu, Q. Li, B. Cheng, Phys. Chem. Chem. Phys., 2014, 16, 1111-1120.
[37] M. J. Chen, Y. Huang, S. C. Lee, Chin. J. Catal., 2017, 38, 348-356.
[38] Z. L. Wang, J. L. Lv, J. F. Zhang, K. Dai, C. H. Liang, Appl. Surf. Sci., 2017, http://dx.doi.org/10.1016/j.apsusc.2017.1006.1093.
[39] P. Zhou, J. G. Yu, M. Jaroniec, Adv. Mater., 2014, 26, 4920-4935.
[40] J. X. Low, C. J. Jiang, B. Cheng, S. Wageh, A.A. Al-Ghamdi, J. G. Yu, Small Methods, 2017, 1, 1700080.
[41] W. L. Yu, J. X. Chen, T. T. Shang, L. F. Chen, L. Gu, T. Y. Peng, Appl. Catal. B, 2017, 219, 693-704.
[42] W. L. Yu, D. F. Xu, T. Y. Peng, J. Mater. Chem. A, 2015, 3, 19936-19947.
[43] M. Cui, J. X. Yu, H. J. Lin, Y. Wu, L. H. Zhao, Y. M. He, Appl. Surf. Sci., 2016, 387, 912-920.
[44] L. Cai, H. Jiang, L. X. Wang, Appl. Surf. Sci., 2017, 420, 43-52.
[45] H. Tang, Y. H. Fu, S. F. Chang, S. Y. Xie, G. G. Tang, Chin. J. Catal., 2017, 38, 337-347.
[46] P. Wang, S. Q. Xu, Y. Xia, X. F. Wang, H. G. Yu, J. G. Yu, Phys. Chem. Chem. Phys., 2017, 19, 10309-10316.
[47] Q. J. Xiang, D. Lang, T. T. Shen, F. Liu, Appl. Catal. B, 2015, 162, 196-203.
[48] L. Pan, J. W. Zhang, X. Jia, Y. H. Ma, X. W. Zhang, L. Wang, J. J. Zou, Chin. J. Catal., 2017, 38, 253-259.
[49] Y. N. Liu, R. X. Wang, Z. K. Yang, H. Du, Y. F. Jiang, C. C. Shen, K. Liang, A. W. Xu, Chin. J. Catal., 2015, 36, 2135-2144.
[50] J. L. Lv, K. Dai, J. F. Zhang, L. Geng, C. H. Liang, Q. C. Liu, G. P. Zhu, C. Chen, Appl. Surf. Sci., 2015, 358, 377-384.
[51] S. Singh, R. Sharma, B. R. Mehta, Appl. Surf. Sci., 2017, 411, 321-330.
[52] J. Jiang, K. Zhao, X. Y. Xiao, L. Z. Zhang, J. Am. Chem. Soc., 2012, 134, 4473-4476.
[53] J. Di, J. X. Xia, M. X. Ji, B. Wang, S. Yin, Q. Zhang, Z. G. Chen, H. M. Li, ACS Appl. Mater. Interfaces, 2015, 7, 20111-20123.
[54] W. J. Ong, L. L. Tan, Y. H. Ng, S. T. Yong, S. P. Chai, Chem. Rev., 2016, 116, 7159-7329.
[55] C. L. Tan, X. H. Cao, X. J. Wu, Q. Y. He, J. Yang, X. Zhang, J. Z. Chen, W. Zhao, S. K. Han, G. H. Nam, M. Sindoro, H. Zhang, Chem. Rev., 2017, 117, 6225-6331.
[56] X. K. Kong, Q. C. Liu, C. L. Zhang, Z. M. Peng, Q. W. Chen, Chem. Soc. Rev., 2017, 46, 2127-2157.
[57] Y. G. Zhou, Y. Zhang, M. S. Lin, J. L. Long, Z. Z. Zhang, H. X. Lin, X. X. Wang, Y. F. Zhang, J. C. S. Wu, Nat. Commun., 2015, 6, 8340.
[58] J. J. Wang, L. Tang, G. M. Zeng, Y. C. Deng, Y. N. Liu, L. L. Wang, Y. Y. Zhou, Z. Guo, J. J. Wang, C. Zhang, Appl. Catal. B, 2017, 209, 285-294.
[59] J. G. Hou, S. Y. Cao, Y. Z. Wu, F. Liang, Y. F. Sun, Z. S. Lin, L. C. Sun, Nano Energy, 2017, 32, 359-366.
[60] Z. L. Wang, K. Dai, C. H. Liang, J. F. Zhang, G. P. Zhu, Mater. Lett., 2017, 196, 373-376.
[61] D. B. Xu, W. D. Shi, C. J. Song, M. Chen, S. B. Yang, W. Q. Fan, B. Y. Chen, Appl. Catal. B, 2016, 191, 228-234.
[62] Y. Y. Bai, Y. Lu, J. K. Liu, J. Hazard. Mater., 2016, 307, 26-35.
[63] K. Dai, L. H. Lu, J. Dong, Z. Y. Ji, G. P. Zhu, Q. Z. Liu, Z. Liu, Y. X. Zhang, D. P. Li, C. H. Liang, Dalton Trans., 2013, 42, 4657-4662.
[64] X. J. Guan, L. J. Guo, ACS Catal., 2014, 4, 3020-3026.
[65] Y. S. Xu, W. D. Zhang, Dalton Trans., 2013, 42, 1094-1101.
[66] Y. Peng, Q. G. Chen, D. Wang, H. Y. Zhou, A. W. Xu, CrystEngComm, 2015, 17, 569-576.
[67] X. H. Hu, Q. Zhu, X. L. Wang, N. Kawazoe, Y. Yang, J. Mater. Chem. A, 2015, 3, 17858-17865.
[68] W. R. Cao, Y. T. An, L. F. Chen, Z. W. Qi, J. Alloys Compd., 2017, 701, 350-357.
[69] X. Y. Kong, Y. Y. Choo, S. P. Chai, A. K. Soh, A. R. Mohamed, Chem. Commun., 2016, 52, 14242-14245.
[70] L. Ge, J. Liu, Appl. Catal. B, 2011, 105, 289-297.
[71] M. L. Li, L. X. Zhang, X. Q. Fan, Y. J. Zhou, M. Y. Wu, J. L. Shi, J. Mater. Chem. A, 2015, 3, 5189-5196.
[72] J. L. Lv, K. Dai, J. F. Zhang, L. H. Lu, C. H. Liang, L. Geng, Z. L. Wang, G. Y. Yuan, G. P. Zhu, Appl. Surf. Sci., 2017, 391, 507-515.

Z-机制磷酸银/钨酸铋复合物的构建及其可见光催化降解有机污染物

Construction of Z-scheme Ag₃PO₄/Bi₂WO₆ composite with excellent visible-light photodegradation activity for removal of organic contaminants

PDF

可视化

被引次数

摘要/Abstract

引用本文

使用本文

扫码分享

参考文献

相关文章 15

编辑推荐

Metrics

[1]	蔡铭洁, 刘艳萍, 董珂欣, 陈晓波, 李世杰. 漂浮型Bi₂WO₆/C₃N₄/碳布S型异质结光催化材料用于高效净化水体环境[J]. 催化学报, 2023, 52(9): 239-251.
[2]	李世杰, 王春春, 董珂欣, 张鹏, 陈晓波, 李鑫. 新型MIL-101(Fe)/BiOBr S型异质催化剂用于高效光催化降解抗生素和还原六价铬: 光催化性能分析和光催化机理研究[J]. 催化学报, 2023, 51(8): 101-112.
[3]	袁鑫, 范海滨, 刘杰, 覃龙州, 王剑, 段秀, 邱江凯, 郭凯. 连续流技术在光氧化还原催化转化的最新进展[J]. 催化学报, 2023, 50(7): 175-194.
[4]	肖汉至, 于博, 颜思顺, 章炜, 李茜茜, 鲍莹, 罗书平, 叶剑衡, 余达刚. 可见光催化二氧化碳参与非活化烯烃1,3-双羧基化反应[J]. 催化学报, 2023, 50(7): 222-228.
[5]	Mengistu Tulu Gonfa, 申升, 陈浪, 胡彪, 周威, 白张君, 区泽堂, 尹双凤. 光催化苯制苯酚的研究进展[J]. 催化学报, 2023, 49(6): 16-41.
[6]	顾幸威, 张有灿, 赵丰乾, 艾汉均, 吴小锋. 膦催化光促进的烷基碘和苯酚及1,4-二氧六环的以电子转移化合物为媒介的羰基化酯化反应[J]. 催化学报, 2023, 48(5): 214-223.
[7]	李宁, 高雪云, 苏俊珲, 高旸钦, 戈磊. 类金属WO₂/g-C₃N₄复合光催化剂的构造及其优异的光催化性能[J]. 催化学报, 2023, 47(4): 161-170.
[8]	池海波, 王旺银, 马江平, 段睿智, 丁春梅, 宋睿, 李灿. 光电催化脱氟-氧化过程实现氟芳烃污染物的高效矿化[J]. 催化学报, 2023, 55(12): 171-181.
[9]	王宁宁, 王硕, 李灿, 李晨阳, 刘春江, 陈闪山, 章福祥. ZrO₂修饰均匀氮掺杂氧化物MgTa₂O_6-_xN_x以提升其光催化分解水性能[J]. 催化学报, 2023, 54(11): 220-228.
[10]	刘伟旭, 贺唱, 朱博文, 朱恩伟, 张亚宁, 陈云宁, 李军山, 朱永法. 利用有机超分子光催化剂在太阳光下处理污水的研究进展[J]. 催化学报, 2023, 53(10): 13-30.
[11]	雷一鸣, 叶金花, Jordi García-Antón, 刘慧敏. 内建电场辅助光催化甲烷干重整的研究进展[J]. 催化学报, 2023, 53(10): 72-101.
[12]	张富林, 李霞, 董晓芸, 郝慧敏, 郎贤军. 基于噻唑并噻唑的共价有机框架微球用于蓝光光催化胺的选择性需氧氧化[J]. 催化学报, 2022, 43(9): 2395-2404.
[13]	伯知豫, 颜思顺, 高田宇, 宋磊, 冉川昆, 何轶, 章炜, 曹光梅, 余达刚. 可见光催化二氧化碳参与多氟芳烃的选择性C-F键羧基化[J]. 催化学报, 2022, 43(9): 2388-2394.
[14]	宋邓萌, 许文华, 李珺, 赵佳乐, 史晴, 李斐, 孙旭镯, 王宁. “一体化”共价有机框架光催化二氧化碳还原研究[J]. 催化学报, 2022, 43(9): 2425-2433.
[15]	杨辉, 代凯, 张金锋, Graham Dawson. 无机-有机杂化光催化剂: 合成、机理及应用[J]. 催化学报, 2022, 43(8): 2111-2140.

Z-机制磷酸银/钨酸铋复合物的构建及其可见光催化降解有机污染物

Construction of Z-scheme Ag3PO4/Bi2WO6 composite with excellent visible-light photodegradation activity for removal of organic contaminants

PDF

可视化

被引次数

摘要/Abstract

引用本文

使用本文

扫码分享

参考文献

相关文章 15

编辑推荐

Metrics

Construction of Z-scheme Ag₃PO₄/Bi₂WO₆ composite with excellent visible-light photodegradation activity for removal of organic contaminants