Optical application of Er-doped ZnO nanoparticles for photodegradation of direct red - 31 dye

Bhatia, Sonik; Verma, Neha; Bedi, R. K.

doi:10.1016/j.optmat.2016.10.013

Cited by 66 publications

(25 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The performance of humidity sensor can be enhanced by introducing impurities to ZnO crystal through the doping process. As reported in previous studies, the doping process is capable of altering electrical conductivity, photocatalytic activity, and magnetic properties of ZnO [20][21][22][23]. In this chapter, we discuss recent developments in metal-doped ZnO, particularly in relation to the advantages of nanostructure-based humidity sensors.…”

Section: Introductionmentioning

confidence: 82%

Aluminum- and Iron-Doped Zinc Oxide Nanorod Arrays for Humidity Sensor Applications

Ismail¹,

Mamat²,

Mahmood³

2017

Nanostructured Materials - Fabrication to Applications

View full text Add to dashboard Cite

Metal-doped zinc oxide (ZnO) nanorod arrays have attracted much attention due to improvement in their electrical, structural, and optical properties upon doping. In this chapter, we discuss the effects of aluminum (Al)-and iron (Fe)-doping on ZnO nanorod arrays properties particularly for humidity sensor applications. Compared to Fe, Al shows more promising characteristics as doping element for ZnO nanorod arrays. The Al-doped ZnO nanorod arrays showed dense arrays, small nanorods diameter, and high porous surface. The I-V characteristics showed that Al-doped sample possesses higher conductivity. From the humidity sensing performance of the samples, Al-doped ZnO nanorod arrays possess the superior sensitivity, more than two times higher than that of the undoped ZnO nanorod arrays sample, demonstrating great potential of Al-doped ZnO nanorod arrays in humidity sensor applications.

show abstract

Section: Introductionmentioning

confidence: 82%

Aluminum- and Iron-Doped Zinc Oxide Nanorod Arrays for Humidity Sensor Applications

Ismail¹,

Mamat²,

Mahmood³

2017

Nanostructured Materials - Fabrication to Applications

View full text Add to dashboard Cite

show abstract

“…Oleh sebab itu, berbagai upaya pengembangan telah dilakukan dalam rekayasa material baru agar memiliki performa sifat optik yang mumpuni. Kajian terbaru menunjukkan bahwa oksida seng (ZnO) merupakan material yang memiliki sifat optik yang menarik [4][5][6]. Lebih lanjut, untuk meningkatkan performa tersebut, partikel nano ZnO telah disintesis dalam bentuk komposit [7][8][9][10], nano-fiber [11][12], nanoflower [13][14][15], dan lain sebagainya.…”

Section: Pendahuluanunclassified

“…Berdasarkan teorema Bloch untuk kristal, terdapat dua jenis fungsi gelombang pada sistem ZnO, yaitu fungsi gelombang akibat orbital atom-atom Zn dan fungsi gelombang akibat orbital atom-atom O. Sehingga, dengan berdasarkan prinsip mekanika kuantum, diperoleh fungsi gelombang total sistem sebagaimana ditunjukkan dalam persamaan (5).…”

Section: Hasil Dan Pembahasanunclassified

Kajian Electronic Structure pada ZnO Nanoparticles Menggunakan Ionization Energy-Tight Binding Model

Hardianto

Taufiq

Hidayat

et al. 2018

JPSE

View full text Add to dashboard Cite

Zinc oxide (ZnO) nanoparticles have been investigated intensively due to their applications such as in optical band gap energy for semiconductor application. In general, the characterization of band gap energy of the ZnO nanoparticles has been carried out using UV-Vis spectroscopy. In this work, ionization energy-tight binding model was developed to analyze the optical band gap energy of the ZnO nanoparticles. The primary technique of the electronic structure calculation is an analytical calculation of overlap integral of 2p orbital from O and 3d orbital from Zn. The result of the calculation presents that the maximum band gap energy of ZnO nanoparticles is about of 4.4 eV, which show the similar value with experiment result.

show abstract

“…Water contamination generated by dyes originating from the textile industries is a growing problem [1][2][3][4] since these pollutants typically show color and toxicity even in low concentration [5][6] . Several processes have been used to promote the water decontamination, among them physical and chemical processes.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Photocatalytic Potential of TiO2 and ZnO Obtained by Different Wet Chemical Methods

et al. 2017

View full text Add to dashboard Cite

This paper describes the development of TiO 2 and ZnO particles by a chemical route, using two different wet synthesis methods: polymeric precursor (PP) and sol-gel (SG). This study aimed to shed a light on how the synthesis method affects the photocatalytic activity of these oxides. Rhodamine B (RhB) degradation was used as a probe reaction to test the as-synthesized TiO 2 and ZnO photoactivity. It was observed that surface availability, which is related to the presence of synthesis residue, is the key parameter to determine photoactivity. ZnO PP and ZnO SG presented degradation of 88% to RhB. Both samples presented synthesis residue on the surface. On the other hand, TiO 2 PP presented a better performance than TiO 2 SG, once 90% of RhB was degraded, while TiO 2 SG degraded 80% of the dye. In this case, TiO 2 PP was free of synthesis residue on the surface, while TiO 2 SG presented residues.

show abstract

Optical application of Er-doped ZnO nanoparticles for photodegradation of direct red - 31 dye

Cited by 66 publications

References 11 publications

Aluminum- and Iron-Doped Zinc Oxide Nanorod Arrays for Humidity Sensor Applications

Aluminum- and Iron-Doped Zinc Oxide Nanorod Arrays for Humidity Sensor Applications

Kajian Electronic Structure pada ZnO Nanoparticles Menggunakan Ionization Energy-Tight Binding Model

Evaluation of the Photocatalytic Potential of TiO2 and ZnO Obtained by Different Wet Chemical Methods

Contact Info

Product

Resources

About