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以PEG为模板剂制备Bi2O2CO3及其可见光光催化性能

Keywords: 碳酸氧铋,聚乙二醇-6000,光催化

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Abstract:

以聚乙二醇-6000(PEG-6000)为模板剂水热法制备碳酸氧铋(p-Bi2O2CO3)粉末,采用X射线衍射(XRD)、扫描电镜(SEM)、X射线光电子能谱(XPS)、透射电子显微镜(TEM)和紫外可见漫反射(DRS)对粉末进行了初步表征。在可见光(λ≥420nm)照射下,以罗丹明B(RhB)和水杨酸(SA)光催化降解实验为探针反应,实验结果表明,p-Bi2O2CO3具有较高的光催化活性,对RhB和SA有较好的降解效果。通过紫外-可见光谱(UV-Vis)、红外光谱(IR)和测定总有机碳(TOC)含量,光催化反应35h后RhB的矿化率为77%,同时对SA的降解率达到43%。同时,采用N,N-二乙基对苯二胺(DPD)分光光度法和对苯二甲酸荧光光度法分别测定了降解过程中H2O2和羟基自由基(·OH)的变化,表明p-Bi2O2CO3/Vis光催化降解机理涉及到·OH历程。

References

[1]  Grice J.D.A solution to the crystal structures of bismutite and beyerite.Can.Mineral., 2002, 40(2):693-698
[2]  解修强, 佘希林, 袁芳, 等.表面活性剂在纳米材料合成中的应用.纳米材料与结构, 2008, 45(8):453-457 Xie X.Q., She X.L., Yuan F., et al.Applications of surfactants in preparing nanomaterials.Nanomater.Structure, 2008, 45(8):453-457(in Chinese)
[3]  王维, 乔学亮, 邱小林, 等.PEG对沉淀法制备纳米MgO形貌的影响.人工晶体学报, 2007, 36(6):1399-1402 Wang W., Qiao X.L., Qiu X.L., et al.Influence of PEG on the morphology of nano-MgO prepared by precipitation.J.Synthetic Crystals, 2007, 36(6):1399-1402(in Chinese)
[4]  Ishibashi K., Fujishima A., Watanabe T., et al.Detection of active oxidative species in TiO2 photo-catalysis using the fluorescence technique.Electrochem.Commun., 2000, 2(3):207-210
[5]  Bader H., Sturzenegger V., Hoigne J.Photometric method for the determination of low concentrations of hydrogen peroxide by the peroxidase catalyzed oxidation of N, N-diethyl-p-phenylenediamine (DPD).Water Res., 1988, 22(9):1109-1115
[6]  Wang S.L., Ma W.H., Huang Y.P., et al.Degradation of pollutants by hydrophobic FePcCl16 under ultraviolet and visible light.Fresenius Environ.Bull., 2013, 22(2a):549-555
[7]  卫芝贤, 欧海峰, 宫喜军, 等.表面活性剂PEG在掺锑纳米SnO2粉末氧化共沉淀制备中的作用.过程工程学报, 2005, 5(3):305-308 Wei Z.X., Ou H.F., Gong X.J., et al.Study on the function of additive-PEG in the preparation of Sb-doped SnO2 nano-powder via oxidative-coprecipitation.Chinese J.Process Eng., 2005, 5(3):305-308(in Chinese)
[8]  Wu T.X., Liu G.M., Zhao J.C., et al.Photoassisted degradation of dye pollutants.V.self-photosensitized oxidative transformation of rhodamine B under visible light irradiation in aqueous TiO2 dispersions.J.Phy.Chem.B, 1998, 102(30):5845-5851
[9]  Nakata K., Fujishima A.TiO2 photocatalysis:Design and applications.J.Photochem.Photobiol.C:Photochem.Rev., 2012, 13(3):169-189
[10]  方艳芬, 黄应平, 刘立明, 等.掺氮TiO2可见光降解有机污染物的比较研究.化学学报, 2007, 65(12):2693-2700 Fang Y.F., Huang Y.P., Liu L.M., et al.Comparative research on degradation of organic pollutants with nitrogen-doped TiO2 photocatalyst under visible light.Acta Chim.Sinica, 2007, 65(12):2693-2700(in Chinese)
[11]  姜晓阳, 方艳芬, 邓安平, 等.Bi掺杂纳米TiO2制备及可见光催化降解有机污染物.太阳能学报, 2010, 31(3):291-296 Jiang X.Y., Fang Y.F., Deng A.P., et al.Preparation of Bi-doped nano-TiO2 and degradation of organic pollutants under visible light.Acta Energiae Solar Sinica, 2010, 31(3):291-296(in Chinese)
[12]  郑云, 顾彦, 汪淑廉, 等.铕掺杂TiO2的制备及其可见光光催化性能研究.影像科学与光化学, 2012, 31(1):60-70 Zheng Y., Gu Y., Wang S.L., et al.Preparation and photocatalytic properties of Eu-doped TiO2 under visible light irradiation.Imaging Sci.Photochem., 2012, 31(1):60-70(in Chinese)
[13]  陈伟, 李佑稷, 李雷勇, 等.外负载Ce-TiO2活性炭复合体对亚甲基蓝光催化.环境工程学报, 2012, 6(6):1895-1900 Chen W., Li Y.J., Li L.Y., et al.Potocatalysis of methylene blue by composites of cerium doped TiO2-outerloaded activated carbon.Chinese J.Environ.Eng., 2012, 6(6):1895-1900(in Chinese)
[14]  王文中, 尚萌, 尹文宗, 等.含铋复合氧化物可见光催化材料研究进展.无机材料学报, 2012, 27(1):11-18 Wang W.Z., Shang M., Yin W.Z., et al.Recent progress on the bismuth containing complex oxide photocatalysts.J.Inorg.Mater., 2012, 27(1):11-18(in Chinese)
[15]  Liu Z.K., Yan F.The application of bismuth-based oxides in organic-inorganic hybrid photovoltaic devices.J.Am.Ceram.Soc., 2012, 95(6):1944-1948
[16]  李二军, 陈浪, 章强, 等.铋系半导体光催化材料.化学进展, 2010, 22(12):2282-2289 Li E.J., Chen L., Zhang Q., et al.Bismuth-containing semiconductor photocatalysts.Progress in Chem., 2010, 22(12):2282-2289(in Chinese)
[17]  张立眉, 高建峰, 张立成.微波辐射Bi2O3/沸石-H2O2体系降解废水中的硝基苯.环境工程学报, 2010, 4(2):365-372 Zhang L.M., Gao J.F., Zhang L.C.Degradation of nitrobenzene in wastewater with microwave-irradiated Bi2O3/zeolite-H2O2 system.Chinese J.Environ.Eng., 2010, 4(2):365-372(in Chinese)
[18]  陈渊, 杨家添, 谢祖芳, 等.新型可见光催化剂BiVO4降解中成药制药废水.环境工程学报, 2012, 6(3):913-921 Chen Y., Yang J.J., Xie Z.F., et al.Degradation of Chinese traditional medicine wastewater by novel visible light sensitive BiVO4 photocatalyst.Chinese J.Environ.Eng., 2012, 6(3):913-921(in Chinese)
[19]  Zheng Y., Duan F., Chen M.Q., et al.Synthetic Bi2O2CO3 nanostructures:novel photocatalyst with controlled special surface exposed.J.Mol.Catal.A:Chem., 2010, 317(1-2):34-40
[20]  Chen R., So M.H., Yang J., et al.Fabrication of bismuth subcarbonate nanotube arrays from bismuth citrate.Chem.Commun., 2006, 21:2265-2267

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