scholarly journals ZnO-PLLA Nanofiber Nanocomposite for Continuous Flow Mode Purification of Water from Cr(VI)

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
T. Burks ◽  
F. Akthar ◽  
M. Saleemi ◽  
M. Avila ◽  
Y. Kiros
Keyword(s):  
Continuous Flow ◽  
Contact Time ◽  
Functional Materials ◽  
Flow Mode ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Adsorption And Desorption ◽  
Effects Of Ph ◽  
Purification Of Water

Nanomaterials of ZnO-PLLA nanofibers have been used for the adsorption of Cr(VI) as a prime step for the purification of water. The fabrication and application of the flexible ZnO-PLLA nanofiber nanocomposite as functional materials in this well-developed architecture have been achieved by growing ZnO nanorod arrays by chemical bath deposition on synthesized electrospun poly-L-lactide nanofibers. The nanocomposite material has been tested for the removal and regeneration of Cr(IV) in aqueous solution under a “continuous flow mode” by studying the effects of pH, contact time, and desorption steps. The adsorption of Cr(VI) species in solution was greatly dependent upon pH. SEM micrographs confirmed the successful fabrication of the ZnO-PLLA nanofiber nanocomposite. The adsorption and desorption of Cr(VI) species were more likely due to the electrostatic interaction between ZnO and Cr(VI) ions as a function of pH. The adsorption and desorption experiments utilizing the ZnO-PLLA nanofiber nanocomposite have appeared to be an effective nanocomposite in the removal and regeneration of Cr(VI) species.

Effects of pH on the Growth of ZnO Nanorod Arrays in Aqueous Solution

2011 ◽  
Vol 418-420 ◽  
pp. 1507-1510
Author(s):  
Chun Mei Zhang ◽  
Tao Meng ◽  
Yan Ping Hao ◽  
Qiang Chen
Keyword(s):  
Aqueous Solution ◽  
Ph Value ◽  
Zno Nanorods ◽  
Nanorod Array ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Effects Of Ph ◽  
Xrd Patterns

Well-aligned crystalline ZnO nanorod arrays were synthesized on the glass substrate via an aqueous solution route, and the effect of the pH value on structural properties and morphology of ZnO nanorod arrays was investigated using XRD and FESEM. FESEM micrographs show the formation of ZnO nanorod arrays at different pH values. XRD patterns confirm that the ZnO nanorods were wurtzite structure preferentially oriented in c-axis direction and the highest quality of nanorod array was formed at high pH value.

scholarly journals Scalable continuous flow synthesis of ZnO nanorod arrays in 3-D ceramic honeycomb substrates for low-temperature desulfurization

CrystEngComm ◽  
2017 ◽  
Vol 19 (34) ◽  
pp. 5128-5136 ◽  
Author(s):  
Sibo Wang ◽  
Yunchao Wu ◽  
Ran Miao ◽  
Mingwan Zhang ◽  
Xingxu Lu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Continuous Flow ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Flow Synthesis ◽  
Efficient Strategy ◽  
Highly Efficient ◽  
Nanostructure Arrays ◽  
Ceramic Honeycomb

Hydrothermal based continuous flow synthesis demonstrates a highly efficient strategy of integrating nanostructure arrays onto 3-D channeled honeycomb substrates.

Controllable Fabrication of Patterned ZnO Nanorod Arrays: Investigations into the Impacts on Their Morphology

2012 ◽  
Vol 4 (6) ◽  
pp. 2969-2977 ◽  
Author(s):  
Dian-bo Zhang ◽  
Shu-jie Wang ◽  
Ke Cheng ◽  
Shu-xi Dai ◽  
Bin-bin Hu ◽  
...  
Keyword(s):  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Controllable Fabrication

The preparation of oxygen-deficient ZnO nanorod arrays and their enhanced field emission

2017 ◽  
Vol 67 ◽  
pp. 55-61 ◽  
Author(s):  
Xiao-Feng Su ◽  
Jian-Biao Chen ◽  
Ru-Mei He ◽  
Yan Li ◽  
Jian Wang ◽  
...  
Keyword(s):  
Field Emission ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays

Flame retardancy of wood coated by ZnO nanorod arrays via a hydrothermal method

2012 ◽  
Vol 16 (5) ◽  
pp. 326-331 ◽  
Author(s):  
Q F Sun ◽  
Y Lu ◽  
H M Zhang ◽  
D J Yang ◽  
J S Xu ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Flame Retardancy ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays

Facile Synthesis of a Porous ZnO Nanorod Array with Enhanced Photocatalysis for Photoelectrochemical Water Splitting Application

2020 ◽  
Vol 20 (6) ◽  
pp. 3512-3518
Author(s):  
Saleh Khan ◽  
Xiao-He Liu ◽  
Xi Jiang ◽  
Qing-Yun Chen
Keyword(s):  
Annealing Temperature ◽  
Zno Nanorods ◽  
Nanorod Array ◽  
Photocurrent Density ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Irradiation Intensity ◽  
Heat Treated ◽  
Positive Effect

Highly efficient and effective porous ZnO nanorod arrays were fabricated by annealing ZnO nanorod arrays grown on a substrate using a simple hydrothermal method. The annealing had a positive effect on the nanorod morphology, structure and optical properties. The porosity was closely related to the annealing temperature. After heating at 450 °C, pores appeared on the nanorods. It was demonstrated that the porosity could be exploited to improve the visible light absorption of ZnO and reduce the bandgap from 3.11 eV to 2.99 eV. A combination of improved charge separation and transport of the heat-treated ZnO thus led to an increase in the photoelectrochemical properties. At an irradiation intensity of 100 mW/cm−2, the photocurrent density of the porous nanorod array was approximately 1.3 mA cm−2 at 1.2 V versus Ag/AgCl, which was five times higher than that of the ZnO nanorods. These results revealed the synthesis of promising porous ZnO nanorods for photoelectrochemical applications.

Effects of ZnSe modification on the perovskite films and perovskite solar cells based on ZnO nanorod arrays

2019 ◽  
Vol 495 ◽  
pp. 143552 ◽  
Author(s):  
Yijie Wang ◽  
Min Zhong ◽  
Wu Wang ◽  
Qiuyu Wang ◽  
Wenduo Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays

Simple, Large-Scale Patterning of Hydrophobic ZnO Nanorod Arrays

2012 ◽  
Vol 4 (8) ◽  
pp. 3910-3915 ◽  
Author(s):  
Seong Been Kim ◽  
Won Woo Lee ◽  
Jaeseok Yi ◽  
Won Il Park ◽  
Jin-Sang Kim ◽  
...  
Keyword(s):  
Large Scale ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays
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