[1]薛金娟,宗玉清,黄承娟,等.ZnO/Ag2O复合光催化剂的制备及其光催化性能研究[J].常州大学学报(自然科学版),2019,31(05):49-55.[doi:10.3969/j.issn.2095-0411.2019.05.008]
　XUE Jinjuan,ZONG Yuqing,HUANG Chengjuan,et al.Preparation of ZnO/Ag2O Composite Photocatalyst with Ehanced Photocatalytic Activity[J].Journal of Changzhou University(Natural Science Edition),2019,31(05):49-55.[doi:10.3969/j.issn.2095-0411.2019.05.008]
点击复制

ZnO/Ag2O复合光催化剂的制备及其光催化性能研究()
分享到：

常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第31卷
期数:
2019年05期
页码:
49-55
栏目:
环境科学与工程
出版日期:
2019-09-28

文章信息/Info

Title:
Preparation of ZnO/Ag2O Composite Photocatalyst with Ehanced Photocatalytic Activity
文章编号:
2095-0411(2019)05-0049-07
作者:
薛金娟; 宗玉清; 黄承娟; 王明新
(常州大学 环境与安全工程学院,江苏 常州 213164)
Author(s):
XUE Jinjuan;  ZONG Yuqing;  HUANG Chengjuan;  WANG Mingxin
(School of Environmental & Safety Engineering,Changzhou University,Changzhou 213164,China)
关键词:
ZnO/Ag2O;  复合材料;  光催化降解
Keywords:
ZnO/Ag2O;  composite material;  photodegradation
分类号:
TQ 426.8
DOI:
10.3969/j.issn.2095-0411.2019.05.008
文献标志码:
A
摘要:
以硝酸锌、氢氧化钠为原料,通过微乳法制备得到ZnO纳米棒,然后采用光化学法在ZnO纳米棒表面负载Ag2O纳米颗粒,成功制备了复合光催化剂ZnO/Ag2O。利用 X 射线衍射仪(XRD)、扫描电子显微镜(SEM)、能谱仪(EDS)、透射电镜(TEM)与紫外可见漫反射(UV-Vis)等手段对样品物相、形貌、元素组成及光学性质进行了表征。并分别在紫外光和可见光条件下,以亚甲基蓝(MB)为模拟污染物评价了催化剂的催化活性。结果表明,与Ag2O耦合后,ZnO的光催化活性得到了明显的提高。ZnO/Ag2O复合光催化剂对亚甲基蓝的紫外光和可见光光催化降解速率分别为ZnO的7.4倍和8.5倍。文章还初步探讨了 Ag2O引入对 ZnO 光催化活性的影响机理。
Abstract:
ZnO nanorods were prepared by microemulsion method with zinc nitrate and sodium hydroxide as the raw materials. And then the ZnO/Ag2O composites were successfully synthesized via a simple photochemical route. The samples were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), transmission electron microscopy(TEM), and energy dispersive X-ray spectroscopy(EDS)and UV-Vis spectrophotometer(UV-Vis). Photocatalytic activity toward degradation of a methylene blue(MB)aqueous solution under ultraviolet(UV)light and visible light was investigated. The results showed that the as-prepared ZnO/Ag2O nanocomposites significantly enhanced photocatalytic activity compared with pure ZnO and Ag2O. In particular, the rates of degradation using the as-prepared ZnO/Ag2O nanocomposites were 7.4 and 8.5 times faster than that using bare ZnO nanoparticle under UV and visible light irradiation, respectively. Finally, a possible photocatalytic mechanism was proposed.

参考文献/References:

[1]SHANNONM A, BOHN P W, ELIMELECH M, et al. Science and technology for water purification in the coming decades[J]. Nature, 2008, 452(7185): 301-310.
[2]薛金娟.基于贵金属的复合光催化材料的制备及其性能研究[D]. 南京:东南大学,2016.
[3]ZHAO J C, WU T X, WU K Q, et al. Photoassisted degradation of dye pollutants. 3. degradation of the cationic dye rhodamine B in aqueous anionic surfactanct/TiO2 dispersions under visible light irradiation: evidence for the need of substrate adsorption on TiO2 particles[J]. Environmental Science & Technology, 1998, 32(16): 2394-2400.
[4]梁倩,金杰,李忠玉.Ag2S/Ag3VO4催化剂的制备、表征及其在光催化性能研究[J].常州大学学报(自然科学版),2017, 29(5): 1-7.
[5]MA S S, XU P, LI X Y, et al. Facile synthesis of carbon/g-C3N4 nanocomposites as metal-free photocatalyst with enhanced visible-light-responsive photocatalytic properties[J]. ChemistrySelect, 2018, 3(44): 12530-12536.
[6]XIANG T, XIN F, ZHAO C, et al. Fabrication of nano copper oxide evenly patched on cubic sodium tantalate for oriented photocatalytic reduction of carbon dioxide[J]. Journal of Colloid and Interface Science, 2018, 518: 34-40.
[7]ONG C B, NG L Y, MOHAMMAD A W. A review of ZnO nanoparticles as solar photocatalysts: synthesis, mechanisms and applications[J]. Renewable and Sustainable Energy Reviews, 2018, 81: 536-551.
[8]GEORGEKUTTY R, SEERY M K, PILLAI S C. A highly efficient Ag-ZnO photocatalyst: synthesis, properties, and mechanism[J]. The Journal of Physical Chemistry C, 2008, 112(35): 13563-13570.
[9]YUAN Y J, WANG F, HU B, et al. Significant enhancement in photocatalytic hydrogen evolution from water using a MoS2 nanosheet-coated ZnO heterostructure photocatalyst[J]. Dalton Transactions, 2015, 44(24): 10997-11003.
[10]NASROLLAHZADEH M S, HADAVIFAR M, GHASEMI S S, et al. Synthesis of ZnO nanostructure using activated carbon for photocatalytic degradation of methyl orange from aqueous solutions[J]. Applied Water Science, 2018, 8(4): 104.
[11]SIWINSKA-STEFANSKA K, KUBIAK A, PIASECKI A, et al. Hydrothermal synthesis of multifunctional TiO2-ZnO oxide systems with desired antibacterial and photocatalytic properties[J]. Applied Surface Science, 2019, 463: 791-801.
[12]MA S S, XUE J J, ZHOU Y M, et al. Photochemical synthesis of ZnO/Ag2O heterostructures with enhanced ultraviolet and visible photocatalytic activity[J]. Journal of Materials Chemistry A, 2014, 2(20): 7272-7280.
[13]WU W, ZHANG S F, XIAO X H, et al. Controllable synthesis, magnetic properties, and enhanced photocatalytic activity of spindlelike mesoporous α-Fe2O3/ZnO core-shell heterostructures[J]. ACS Applied Materials & Interfaces, 2012, 4(7): 3602-3609.
[14]吴燕军,李容,曾春梅,等.ZnO纳米线的微乳-水热法制备与气敏性能[J].应用化工,2013,42(2):221-224.
[15]李家科,陈滢,刘欣,等.一步法合成ZnO/BiVO4复合光催化剂及其光催化性能研究[J].人工晶体学报,2018,47(6):1119-1135.
[16]WU M, YAN J M, ZHAO M, et al. Facile synthesis of an Ag2O-ZnO nanohybrid and its high photocatalytic activity[J]. ChemPlusChem, 2012, 77(10): 931-935.

相似文献/References:

[1]王茂华,汤庆华,姚 超,等.金属Ni 掺杂对中间相碳微球/ 石墨复合材料烧结性能的影响[J].常州大学学报(自然科学版),2010,(03):13.
　WANG Mao- hua,T ANG Qing- hua,YAO Chao,et al.Effect of Ni Dopant on the Sintering Behavior of MCMB/Graphite Composite[J].Journal of Changzhou University(Natural Science Edition),2010,(05):13.
[2]夏艳平,陶 宇,梁平辉,等.纳米银/环氧树脂纳米复合材料制备和性能表征[J].常州大学学报(自然科学版),2011,(01):1.
　XIA Yan-ping,TAO Yu,LIANG Ping-hui,et al.Study of the Preparation and Characterization of the Epon Filled with Nanosilver[J].Journal of Changzhou University(Natural Science Edition),2011,(05):1.
[3]马文中,潘霁,龚方红,等.凹凸棒土对聚偏氟乙烯结晶行为的影响[J].常州大学学报(自然科学版),2016,(06):57.[doi:10.3969/j.issn.2095-0411.2016.06.011]
　MA Wenzhong,PAN Ji,GONG Fanghong,et al.The Effect of Attapulgite on Crystallization Behavior of Poly(vinylidene fluoride)[J].Journal of Changzhou University(Natural Science Edition),2016,(05):57.[doi:10.3969/j.issn.2095-0411.2016.06.011]
[4]杨辉龙,段家骥,张福长,等.ZnO/石墨烯复合材料的制备及其光催化性能[J].常州大学学报(自然科学版),2017,(03):13.[doi:10.3969/j.issn.2095-0411.2017.03.003]
　YANG Huilong,DUAN Jiaji,ZHANG Fuchang,et al.Preparation and Study of Photocatalytic Properties of the Composite Materials of Zinc Oxide/Graphene[J].Journal of Changzhou University(Natural Science Edition),2017,(05):13.[doi:10.3969/j.issn.2095-0411.2017.03.003]
[5]田 俐,王会锋,李 岩,等.PPy@In-BDC复合材料的制备与表征[J].常州大学学报(自然科学版),2018,30(03):28.[doi:10.3969/j.issn.2095-0411.2018.03.003]
　TIAN Li,WANG Huifeng,LI Yan,et al.Preparation and Characterization of the PPy@In-BDC Composite Material[J].Journal of Changzhou University(Natural Science Edition),2018,30(05):28.[doi:10.3969/j.issn.2095-0411.2018.03.003]
[6]欧红香,叶 青,蒋军成,等.聚烯烃无卤阻燃研究进展[J].常州大学学报(自然科学版),2019,31(04):1.[doi:10.3969/j.issn.2095-0411.2019.04.001]
　OU Hongxiang,YE Qing,JIANG Juncheng,et al.Research Progress on Halogen-Free Flame Retardant of Polyolefins[J].Journal of Changzhou University(Natural Science Edition),2019,31(05):1.[doi:10.3969/j.issn.2095-0411.2019.04.001]
[7]万玉山,王安慰,邵敏,等.Z型异质结PbWO4/CdS的构建及光催化性能[J].常州大学学报(自然科学版),2023,35(01):18.[doi:10.3969/j.issn.2095-0411.2023.01.003]
　WAN Yushan,WANG Anwei,SHAO Min,et al.Construction and photocatalytic performance of Z-type heterojunction PbWO4/CdS[J].Journal of Changzhou University(Natural Science Edition),2023,35(05):18.[doi:10.3969/j.issn.2095-0411.2023.01.003]
[8]董良飞,郜 飞,刘会东,等.凹凸棒土/玉米秸秆生物炭制备及对四环素的吸附[J].常州大学学报(自然科学版),2023,35(02):46.[doi:10.3969/j.issn.2095-0411.2023.02.006 ]
　DONG Liangfei,GAO Fei,LIU Huidong,et al.Preparation of attapulgite/corn straw biochar and its adsorption on tetracycline[J].Journal of Changzhou University(Natural Science Edition),2023,35(05):46.[doi:10.3969/j.issn.2095-0411.2023.02.006 ]

备注/Memo

备注/Memo:
收稿日期:2019-01-03。
基金项目:国家自然科学基金资助项目(21808019,41641032,41772240); 江苏省自然科学基金青年基金资助项目(BK20180958)。
作者简介:薛金娟(1985—),女,江苏常州人,博士,讲师。通信联系人:王明新(1979—), E-mail: wmxcau@163.com
更新日期/Last Update: 2019-09-30