利用无水醋酸锌原位水解生成的纳米ZnO作晶种，通过溶液法制备ZnO纳米阵列，研究反应过程中各因素对ZnO纳米阵列形貌的影响，并对制得的ZnO纳米阵列的光催化活性进行研究。结果表明：采用浸涂方式制备晶种，生长得到的ZnO纳米阵列在衬底表面均匀密集分布；采用喷涂方式制备晶种，生长得到的ZnO纳米阵列存在着较大的空白区域。在晶种前驱体溶液中添加二乙醇胺或甲酰胺，会引起纳米ZnO成核的聚集，不利于制得分布均匀的ZnO纳米阵列。反应溶液pH＝6．7时，可得到均匀、密集且取向性良好的ZnO纳米阵列结构。以不锈钢金属网为基底制备的ZnO纳米阵列应用于15mg／L甲基橙的光催化降解，3h即降解完全，且进行连续三次反应后仍表现出良好的光催化活性。
ZnO nanoarrays were fabricated through solution method using nano ZnO as seeds ,which were hydrolyzed in‐situ by anhydrous zinc acetate .The effects of various factors on the morphologies of ZnO nanoarrays during the reaction process ,and the photocatalytic activity of the obtained ZnO nanoarrays was investigated .The results indicate that ZnO nanoarrays ,which are obtained from ZnO seeds fabricated by dip‐coating ,distribute uniformly and densely ;ZnO nanoarrays ,w hich are obtained from ZnO seeds fabricated by spray coating ,appears with larger blank area;the addition of diethano‐lamine or formamide into the seeds precursor solution ,will result in the aggregation of nano ZnO nu‐cleation ,w hich is not conducive to gain the uniform distribution of ZnO nanoarrays .When the solu‐tion pH is 6 .7 ,the uniform and dense ZnO nanoarrays with good vertical orientation can be obtained . When using ZnO nanoarrays based on stainless steel wire mesh for the photocatalytic degradation of methyl orange of about 15mg/L ,methyl orange is completely eliminated after 3h .Moreover ,the ZnO nanoarrays exhibit good photocatalytic activity after three times continuous photocatalytic degradation in succession .
参考文献
| [1] | Zhou Li;Rusen Yang;Min Yu .Cellular Level Biocompatibility and Biosafety of ZnO Nanowires[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2008(51):20114-20117. |
| [2] | Yang, Y.;Guo, W.;Zhang, Y.;Ding, Y.;Wang, X.;Wang, Z.L. .Piezotronic effect on the output voltage of P3HT/ZnO micro/nanowire heterojunction solar cells[J].Nano letters,2011(11):4812-4817. |
| [3] | Jiandong Fan;Yan Hao;Carmen Munuera .Influence of the Annealing Atmosphere on the Performance of ZnO Nanowire Dye-Sensitized Solar Cells[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2013(32):16349-16356. |
| [4] | QI G C;ZHAO S Z;YUAN Z H .From function-guided assem-bly of a lotus leaf-like ZnO nanostructure to a formaldehyde das-sensing application[J].Sensors and Actuators B,2013,184:143-149. |
| [5] | Xi Y;Hu CG;Han XY;Xiong YF;Gao PX;Liu GB .Hydrothermal synthesis of ZnO nanobelts and gas sensitivity property[J].Solid State Communications,2007(9):506-509. |
| [6] | Zhiping Mao;Qiuping Shi;Linping Zhang;Huantian Cao .The Formation And Uv-blocking Property Of Needle-shaped Zno Nanorod On Cotton Fabric[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2009(8):2681-2686. |
| [7] | Maged H. Zohdy;Mamdouh B. El Hossamy;Abdel Wahab M. El-Naggar;Abeer I. Fathalla .Novel UV-protective formulations for cotton, PET fabrics and theirblend utilizing irradiation technique[J].European Polymer Journal,2009(10):2926-2934. |
| [8] | Wu QZ;Chen X;Zhang P;Han YC;Chen XM;Yan YH;Li SP .Amino acid-assisted synthesis of ZnO hierarchical architectures and their novel photocatalytic activities[J].Crystal growth & design,2008(8):3010-3018. |
| [9] | Joonho Bae;Jing Bin Han;Xiao-Mei Zhang .ZnO Nanotubes Grown at Low Temperature Using Ga as Catalysts and Their Enhanced Photocatalytic Activities[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2009(24):10379-10383. |
| [10] | Michael J. Coutts;Hadi M. Zareie;Michael B. Cortie .Exploiting Zinc Oxide Re-emission to Fabricate Periodic Arrays[J].ACS applied materials & interfaces,2010(6):1774-1779. |
| [11] | Yan Zhang;Lei Ge;Meng Li;Mei Yan;Shenguang Ge;Jinghua Yu;Xianrang Song;Bingqiang Cao .Flexible paper-based ZnO nanorod light-emitting diodes induced multiplexed photoelectrochemical immunoassay[J].Chemical communications,2014(12):1417-1419. |
| [12] | Shao-Tsu Hung;Chi-Jung Chang;Mu-Hsiang Hsu.Improved photocatalytic performance of ZnO nanograss decorated pore-array films by surface texture modification and silver nanoparticle deposition[J].Journal of hazardous materials,2011:307-316. |
| [13] | 王应民,杜楠,蔡莉,李禾,程国安.PECVD法制备硅基ZnO薄膜光学性能的研究[J].材料工程,2007(11):71-75. |
| [14] | 鲍艳,张永辉,马建中,杨永强.一维纳米氧化锌的制备及应用研究进展[J].材料工程,2015(02):103-112. |
| [15] | 薄小庆,刘唱白,何越,刘丽,刘震,王连元.多孔纳米棒氧化锌的制备及其气敏特性[J].材料工程,2014(8):86-89. |
| [16] | Hu XL;Masuda Y;Ohji T;Kato K .Micropatterning of ZnO nanoarrays by forced hydrolysis of anhydrous zinc acetate[J].Langmuir: The ACS Journal of Surfaces and Colloids,2008(14):7614-7617. |
| [17] | BAO Y;ZHANG Y H;MA J Z et al.Controllable fabrication of one-dimensional ZnO nanoarrays and its application in con-structing silver trap structures[J].RSC Advances,2014,4(63):33198-33205. |
| [18] | Low-temperature fabrication of ZnO nanoarray films by forced hydrolysis of anhydrous zinc acetate layer[J].Journal of Crystal Growth,2009(3):597. |
| [19] | J. K. Liang;H. L. Su;C. L. Kuo;S. P. Kao;J. W. Cui;Y. C. Wu;J. C. A. Huang.Structural, Optical and Electrical Properties of Electrodeposited Sb-Doped ZnO Nanorod Arrays[J].Electrochimica Acta,2014:124-132. |
| [20] | 刘金平 .金属基底上氧化物纳米结构薄膜/阵列的合成、生长动力学与应用研究[D].华中师范大学,2009. |
| [21] | Xinjuan WangD|State Key Lab of CBSC, School of Physics, Hunan University, Changsha, 410082, China;Qinglin ZhangD|State Key Lab of CBSC, School of Physics, Hunan University, Changsha, 410082, China;Qiang Wan .Controllable ZnO Architectures by Ethanolamine-Assisted Hydrothermal Reaction for Enhanced Photocatalytic Activity[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2011(6):2769-2775. |
| [22] | Yan XD;Li ZW;Chen RQ;Gao W .Template growth of ZnO nanorods and microrods with controllable densities[J].Crystal growth & design,2008(7):2406-2410. |
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