ZnO/CdS复合光催化剂的制备及降解四环素类抗生素

doi:10.16085/j.issn.1000-6613.2015.11.018

化工进展 ›› 2015, Vol. 34 ›› Issue (11): 3944-3950.DOI: 10.16085/j.issn.1000-6613.2015.11.018

ZnO/CdS复合光催化剂的制备及降解四环素类抗生素

叶林静, 安小英, 姜韵婕, 闫超, 关卫省

长安大学环境科学与工程学院, 陕西西安 710054

收稿日期:2015-01-22 修回日期:2015-05-10 出版日期:2015-11-05 发布日期:2015-11-05
通讯作者: 叶林静(1986—),女,博士,讲师,从事环境工程水污染控制研究。E-mailyelinjing456@126.com。
作者简介:叶林静(1986—),女,博士,讲师,从事环境工程水污染控制研究。E-mailyelinjing456@126.com。
基金资助:
中央高校基金项目(2014G3292007,310829151073)。

Preparation of ZnO/CdS composite photocatalyst and its degradability on tetracycline antibiotic

YE Linjing, AN Xiaoying, JIANG Yunjie, YAN Chao, GUAN Weisheng

School of Environmental Science and Engineering, Chang'an University, Xi'an 710054, Shaanxi, China

Received:2015-01-22 Revised:2015-05-10 Online:2015-11-05 Published:2015-11-05

摘要/Abstract

摘要： 利用单晶Si辅助水热法低温合成了ZnO/CdS复合光催化剂,采用XRD、SEM、Dr-UV-vis等技术对材料结构和形貌进行表征,并对四环素类抗生素进行光催化降解研究。结果表明,当锌源与镉源的物料摩尔比为25:1、反应时间10h条件下,可获得形貌最佳的ZnO/CdS复合物,即尺寸为1μm的具有孔结构的棒状ZnO骨架表面黏附了尺寸在几十纳米的CdS粒子。CdS的复合明显降低ZnO/CdS的带隙能至2.87eV,在日光照射下反应120min,对盐酸四环素(TC)、土霉素(OTC)和强力霉素(DC)3种四环素类抗生素的光催化降解率分别达到81.65%、70.68%和54.61%,降解反应速率很快,符合一级反应动力学方程;在紫外光照射下几乎可以完全降解这3种抗生素,证明了该复合材料的高催化效率。

关键词: 氧化锌, 硫化镉, 水热, 表面, 复合材料, 光催化降解, 四环素类抗生素

Abstract: ZnO/CdS nanocomposites were synthesized at low temperature by single crystal Si assisted hydrothermal method. The structure and morphology of the products were examined by X-ray diffraction(XRD), scanning electronic microscopy(SEM), ultraviolet visible diffuse reflectance (Dr-UV-vis), and carried on the research of photocatalytic degradation of tetracycline antibiotics. The result shows that the ZnO/CdS of optimal morphology was obtained at zinc and cadmium molar ration of 25:1 reacted for 10 hour, there are several CdS nanoparticles adhere to the surface of porous ZnO rod skeleton. CdS component makes band gap of ZnO reduced to 2.87eV, leading to the degradation of tetracycline(TC), oxytetracycline(OTC) and doxycycline(DC) under xenon light reached 81.65%, 70.68% and 54.61% respectively. Moreover, ZnO/CdS composites can almost complete the degradation of three kinds of antibiotics under UV irradiation, proving high catalytic efficiency of the composite catalyst.

Key words: zinc oxide, cadmium sulfide, hydrothermal, surface, composites, photocatalytic degradation, tetracycline antibiotics

中图分类号:

O643.3

叶林静, 安小英, 姜韵婕, 闫超, 关卫省. ZnO/CdS复合光催化剂的制备及降解四环素类抗生素[J]. 化工进展, 2015, 34(11): 3944-3950.

YE Linjing, AN Xiaoying, JIANG Yunjie, YAN Chao, GUAN Weisheng. Preparation of ZnO/CdS composite photocatalyst and its degradability on tetracycline antibiotic[J]. Chemical Industry and Engineering Progree, 2015, 34(11): 3944-3950.

参考文献

[1] 罗玉,黄斌,金玉,等. 污水中抗生素的处理方法研究进展[J]. 化工进展,2014,33(9):2471-2477.
[2] Chee-Sanford J C,Mackie R I,Koike S,et al. Fate and transport of antibiotic residues and antibiotic resistance genes following land application of manure waste[J]. Journal of Environmental Quality,2009,38:1086-1108.
[3] Sun H Y,Shi X,Mao J D,et al. Tetracycline sorption to coal and soil humic acids:An examination of humic structural heterogeneity[J]. Environ. Toxicol. Chem.,2010,29:1934-1942.
[4] Rodriguez-Rojas A,Rodriguez-Beltran J,Couce A,et al. Antibiotics and antibiotic resistance:A bitter fight against evolution[J]. Int. J. Med. Microbiol.,2013,303(6-7):293-297.
[5] Michael I,Rizzo L,McArdell CS,et al. Urban wastewater treatment plants as hotspots for the release of antibiotics in the environment:A review[J]. Water Research,2013,47(3):957-995.
[6] Liu S,Zhao X R,Sun H Y,et al. The degradation of tetracycline in a photo-electro-Fenton system[J]. Chemical Engineering Journal,2013,231:441-448.
[7] Jing X R,Wang Y Y,Liu W J. Enhanced adsorption performance of tetracycline in aqueous solutions by methanol-modified biochar[J]. Chemical Engineering Journal,2014,248:168-174.
[8] Benitez F J,Real F J,Acero J L,et al. Removal of selected pharmaceuticals in waters by photochemical processes[J]. Chemistry Technology Biotechnology,2009,84:1186-1195.
[9] Bian Z,Zhu J,Wang S,et al. Self-assembly of active Bi₂O₃/TiO₂ visible photocatalyst with ordered mesoporous structure and highly crystallized anatase[J]. Journal of Physics Chemistry C ,2008,112:6258-6262.
[10] Xu F,Chen J,Guo L,et al. In situ electrochemically etching-derived ZnO nanotube arrays for highly efficient and facilely recyclable photocatalyst[J]. Applied Surface Science,2012,258:8160-8165.
[11] Lu Y,Wang L,Wang D,et al. A comparative study on plate-like and flower-like ZnO nanocrystals surface photovoltage property and photocatalytic activity[J]. Materials Chemistry and Physics,2011,129:281-287.
[12] Anju N S G,Yesodharan S,Yesodharan E P. Zinc oxide mediated sonophotocatalytic degradation of phenol in water[J]. Chemical Engineering Journal,2012,189-190:84-93.
[13] Faisal M,Bahadar Khan S,Rahman M M,et al. Smart chemical sensor and active photo-catalyst for environmental pollutants[J]. Chemical Engineering Journal,2011,173:178-184.
[14] Vanalakar S A,Pawar R C,Suryawanshi M P,et al. Low temperature aqueous chemical synthesis of CdS sensitized ZnO nanorods[J]. Materials Letters,2011,65:548-551.
[15] Tak Y J,Hong S J,Lee J S,et al. Solution-based synthesis of a CdS nanoparticle/ZnO nanowire heterostructure array[J]. Crystal Growth & Design,2009,9(6):2627-2632.
[16] Bao N,Shen L,Takata T,et al. Facile Cd-thiourea complex thermolysis synthesis of phase-controlled CdS nanocrystals for photocatalytic hydrogen production under visible light[J]. J. Phys. Chem.,2007,111(47):17527-17534.
[17] Wu Y,Tamaki T,Volotinen T,et al. Enhanced photoresponce of inkjet-printed Zno thin films capped with CdS nanoparticles[J]. Journal of Physics Chemistry Letters,2010,1(1):89-92.
[18] Xu F,Volkov V,Zhu Y,et al. Long electron-hole separation of ZnO-CdS core-shell quantum dots[J]. Journal of Physics Chemistry C,2009,113(45):19419-19423.
[19] Wang X,Liu G,Chen Z G,et al. Enhanced photocatalytic hydrogen evolution by prolonging the lifetime of carriers in ZnO/CdS heterostructures[J]. Chemical Communications,2009,23:3452-3454.
[20] Zhai J L,Wang L L,Wang D J,et al. Enhancement of gas sensing properties of CdS nanowire/ZnO nanosphere composite materials at room temperature by visible-light activation[J]. ACS Applied Materials & Interfaces,2011,3:2253-2258.
[21] Yao C Z,Wei B H,Meng L X,et al. Controllable electrochemical synthesis and photovoltaic performance of ZnO/CdS core-shell nanorod arrays on fluorine-doped tin oxide[J]. Journal of Power Sources,2012,207:222-228.
[22] Barpuzary D,Khan A,Vinothkumar N,et al. Hierarchically grown urchinlike CdS@ZnO and CdS@Al₂O₃ heteroarrays for efficient visible-light-driven photocatalytic hydrogen generation[J]. Journal of Physics Chemistry C,2012,116:150-156.
[23] Qi X,She G,Liu Y,et al. Electrochemical synthesis of CdS/ZnO nanotube arrays with excellent photoelectrochemical properties[J]. Chemistry Communications,2012,48:242-244.
[24] Kundu P,Deshpande P A,Madras G,et al. Nanoscale ZnO/CdS heterostructures with engineered interfaces for high photocatalytic activity under solar radiation[J]. Journal of Materials Chemistry,2011,21:4209-4216.
[25] Khanchandani S,Kundu S,Patra A,et al. Shell thickness dependent photocatalytic properties of ZnO/CdS core-shell nanorods[J]. Journal of Physics Chemistry C,2012,116:23653-23662.
[26] Tak Y,Hong S J,Lee J S,et al. Solution-based synthesis of a CdS nanoparticle/ZnO nanowire heterostructure array[J]. Crystal Growth and Design,2009,19:2627-2632.
[27] Yang P D,Yan H,Mao S,et al. Controlled growth of ZnO nanowires and their optical properties[J]. Advance Fuanctional Materials,2002,12:323-331.
[28] Fang F,Zhao D X,Li B H,et al. The enhancement of ZnO nanowalls photoconductivity induced by CdS nanoparticle modification[J]. Appl. Phys. Lett.,2008,93(23):233115-1-3.
[29] Wang X W,Liu G,Chen Z G,et al. Enhanced photocatalytic hydrogen evolution by prolonging the lifetime of carriers in ZnO/CdS heterostructures[J]. Chem. Commun.,2009,66(23):3452-3454.

ZnO/CdS复合光催化剂的制备及降解四环素类抗生素

Preparation of ZnO/CdS composite photocatalyst and its degradability on tetracycline antibiotic

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