Cadmium sulfide modified zinc oxide heterojunction harvesting ultrasonic mechanical energy for efficient decomposition of dye wastewater

2022 ◽  
Vol 607 ◽  
pp. 412-422 ◽  
Author(s):  
Xiaojing Li ◽  
Junfeng Wang ◽  
Jiayu Zhang ◽  
Chunran Zhao ◽  
Ying Wu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Cadmium Sulfide ◽  
Mechanical Energy ◽  
Dye Wastewater

scholarly journals Piezoelectric Properties of Zinc Oxide/Iron Oxide filled Polyvinylidene fluoride Nanocomposite Fibers

2021 ◽  
Author(s):  
Abdulrahman Mohmmed AlAhzm ◽  
Maan Omar Alejli ◽  
Deepalekshmi Ponnamma ◽  
Yara Elgawady ◽  
Mariam Al Ali Al-Maadeed
Keyword(s):  
Zinc Oxide ◽  
Iron Oxide ◽  
Polyvinylidene Fluoride ◽  
Output Voltage ◽  
Mechanical Energy ◽  
Scanning Calorimetry ◽  
Power Sources ◽  
Hybrid Nanomaterial ◽  
Β Phase ◽  
Nanocomposite Fibers

Abstract Piezoelectric nanogenerators (PENG) with flexible and simple design have pronounced significance in fabricating sustainable devices for self-powering electronics. This study demonstrates the fabrication of electrospun nanocomposite fibers from polyvinylidene fluoride (PVDF) filled Zinc Oxide (ZnO)/Iron Oxide (FeO) nanomaterials. The nanocomposite fiber based flexible PENG showed piezoelectric output voltage of 5.9 V when 3 wt.% of ZnO/FeO hybrid nanomaterial was introduced, which was 29.5 times higher than the neat PVDF. No apparent decline in output voltage was observed for almost 2000 seconds attributed to the outstanding durability. This higher piezoelectric output performance is correlated with the β-phase transformation studies from the Fourier transformation infrared spectroscopy and the crystallinity studies from the differential scanning calorimetry. Both these studies show respective enhancement of 3.79 and 2.16 % in the β-phase crystallinity values of PVDF-ZnO/FeO 3 wt.% composite. Higher dielectric constant value obtained for the same composite (3 times higher than the neat PVDF) confirms the increased energy storage efficiency as well. Thus the proposed soft and flexible PENG is a promising mechanical energy harvester, and its good dielectric properties reveals the ability to use this material as good power sources for wearable and flexible electronic devices.

Improved performance of poly(3-hexylthiophene)/zinc oxide hybrid photovoltaics modified with interfacial nanocrystalline cadmium sulfide

2009 ◽  
Vol 95 (21) ◽  
pp. 213506 ◽  
Author(s):  
Erik D. Spoerke ◽  
Matthew T. Lloyd ◽  
Erica M. McCready ◽  
Dana C. Olson ◽  
Yun-Ju Lee ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Cadmium Sulfide ◽  
Improved Performance ◽  
Hybrid Photovoltaics

Nanocrystal Layer Deposition: Surface-Mediated Templating of Cadmium Sulfide Nanocrystals on Zinc Oxide Architectures

2009 ◽  
Vol 113 (37) ◽  
pp. 16329-16336 ◽  
Author(s):  
Erik D. Spoerke ◽  
Matthew T. Lloyd ◽  
Yun-ju Lee ◽  
Timothy N. Lambert ◽  
Bonnie B. McKenzie ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Cadmium Sulfide ◽  
Deposition Surface ◽  
Layer Deposition ◽  
Sulfide Nanocrystals

Numerical Study of the Zinc Oxide Nanowire Geometry Effect on Nanogenerator Output

2013 ◽  
Vol 829 ◽  
pp. 222-226
Author(s):  
Samira Fathi ◽  
Tahereh Fanaei Sheikholeslami ◽  
Mitra Salami
Keyword(s):  
Zinc Oxide ◽  
Numerical Study ◽  
Mechanical Energy ◽  
Three Dimensional ◽  
Degree Relative ◽  
Dimensional Finite Element ◽  
Piezoelectric Potential ◽  
Self Powered ◽  
Zinc Oxide Nanowire ◽  
Three Dimensional Finite Element

Piezoelectric nanogenerator (NG) made of nanowires (NWs) is a suitable device for harvesting ambient mechanical energy, applicable for self-powered electronic systems and nanodevices that operate at low power. The coupled piezoelectric and semiconducting characteristics of the zinc oxide (ZnO) NW cause an output voltage generation that made it interesting to use as an energy harvesting device in nanoscale. In this paper, the piezoelectric potential distribution in a bent ZnO NW is investigated, numerically. To do this, a three-dimensional finite element simulation of the device is performed and the results are analyzed and discussed. It is found that the output piezoelectric potential, for a constant nanowire length, is decreased as the diameter of ZnO NW increases. Study on the effect of NW diameters shows the potential will remain constant for nanowire with aspect ratio below 15. Further, the NWs are considered with an inclination of 20 degree relative to the substrate to study by applying force in different directions. The latter indicates an improvement on the output piezoelectric potential. The obtained results show that the ZnO NW can be used as a good energy harvester device by considering a suitable diameter, length and with a justified inclination angle.

Phthalocyanization of cadmium sulfide and zinc oxide. Effects on the photochemistry in aqueous dispersion

1983 ◽  
Vol 87 (26) ◽  
pp. 5456-5460 ◽  
Author(s):  
John R. Harbour ◽  
Bonita Dietelbach ◽  
James Duff
Keyword(s):  
Zinc Oxide ◽  
Cadmium Sulfide ◽  
Aqueous Dispersion

Cubic phase indium doped cadmium sulfide dispersed on zinc oxide: Enhanced photocatalytic activity for hydrogen generation from water

2013 ◽  
Vol 464-465 ◽  
pp. 149-155 ◽  
Author(s):  
Rajamma Sasikala ◽  
Archana P. Gaikwad ◽  
Vasanthakumaran Sudarsan ◽  
Nidhi Gupta ◽  
Shyamala R. Bharadwaj
Keyword(s):  
Zinc Oxide ◽  
Photocatalytic Activity ◽  
Cadmium Sulfide ◽  
Hydrogen Generation ◽  
Cubic Phase
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