Open Access Nano Express

Green material: ecological importance of imperative and sensitive chemi-sensor based on Ag/Ag2O3/ZnO composite nanorods

Abdullah M Asiri12, Sher Bahadar Khan12*, Mohammed M Rahman12, Abdullah G Al-Sehemi3, Saleh A Al-Sayari4 and Mohammad Sultan Al-Assiri5

Author affiliations

1 Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia

2 Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia

3 Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia

4 Advanced Materials and NanoResearch Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia

5 Department of Physics, College of Science and Arts, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia

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Citation and License

Nanoscale Research Letters 2013, 8:380  doi:10.1186/1556-276X-8-380

Published: 8 September 2013

Abstract

In this report, we illustrate a simple, easy, and low-temperature growth of Ag/Ag2O3/ZnO composite nanorods with high purity and crystallinity. The composite nanorods were structurally characterized by field emission scanning electron microscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy which confirmed that synthesized product have rod-like morphology having an average cross section of approximately 300 nm. Nanorods are made of silver, silver oxide, and zinc oxide and are optically active having absorption band at 375 nm. The composite nanorods exhibited high sensitivity (1.5823 μA.cm−2.mM−1) and lower limit of detection (0.5 μM) when applied for the recognition of phenyl hydrazine utilizing I-V technique. Thus, Ag/Ag2O3/ZnO composite nanorods can be utilized as a redox mediator for the development of highly proficient phenyl hydrazine sensor.

Keywords:
Composite nanorods; Structural properties; Optical properties; Phenyl hydrazine sensing