Green, Nonchemical Route for the Synthesis of ZnO Superstructures, Evaluation of Its Applications toward Photocatalysis, Photoluminescence, and Biosensing

被引:90
作者
Udayabhanu [1 ]
Nagaraju, G. [1 ]
Nagabhushana, H. [2 ]
Basavaraj, R. B. [2 ]
Raghu, G. K. [1 ]
Suresh, D. [3 ]
Rajanaika, H. [4 ]
Sharma, S. C. [5 ,6 ]
机构
[1] Siddaganga Inst Technol, Dept Chem, Tumakuru, India
[2] Tumkur Univ, Prof CNR Rao Ctr Adv Mat, Tumakuru, India
[3] Tumkur Univ, Dept Studies & Res Chem, Tumakuru, India
[4] Tumkur Univ, Dept Studies & Res EVS, Tumakuru, India
[5] Dayananda Sagar Coll Engn, Dept Mech Engn, Bangalore, Karnataka, India
[6] ARKA Univ, Bangalore, Karnataka, India
关键词
THERMAL-DECOMPOSITION; COMBUSTION SYNTHESIS; WASTE-WATER; NANOPARTICLES; DEGRADATION; ANTIOXIDANT; NANOSTRUCTURES; FABRICATION; ADSORPTION; MORPHOLOGY;
D O I
10.1021/acs.cgd.6b00936
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In the present work, we have developed a novel, ecofriendly method for the synthesis of ZnO superstructures for the first time through the thermal decomposition of zinc nitrate precursor without using any fuel. The synthesized materials were thoroughly characterized using various analytical tools such as X-ray diffraction, Fourier-transform infrared spectrometry, UV-vis, scanning electron microscopy, and transmission electron microscopy. Further, it has been used as a photocatalyst for the degradation of one of the environmental pollutants such as methylene blue and also as a biosensor toward the detection of dopamine at trace level. The as-synthesized ZnO nanoparticles showed superior catalytic activity toward the degradation of methylene blue dye with high degree of recydability with yellow light emitting photoluminescence. The developed sensor showed a linear range for dopamine up to 300 mu M with a detection limit of 1 mu M with reproduced results over periods of several months without any deviation in its electrochemical performance.
引用
收藏
页码:6828 / 6840
页数:13
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