One pot synthesis of opposing ‘rose petal’ and ‘lotus leaf’ superhydrophobic materials with zinc oxide nanorods

In the present work zinc oxide nanorods (ZNRs) have been synthesized to estimate its photocatalytic degradation potential on an industrially used diazo dye and optimization of the total treatment process has been designed. Response surface methodology (RSM) has been used to model the operational parameters for this photocatalytic degradation. The crystallite size (101 plane) of the synthesized ZNR has been found to be 20.99 nm having a band gap energy of 3.45 eV. At elevated pH, the rate of degradation of the photocatalyst was found to be higher than that of acidic pH. The independent variables of the model are time (9.6–122 min), pH (2–12.2), catalyst dose (0.2–0.4 g/L) and dye concentration (88–512 mg/L). It was seen that the degradation efficiency was significantly affected by the initial dye concentration and the pH, the optimal values of the parameters being a pH of 10.67, an initial concentration of 150 mg/L and ZnO dose of 0.37 g/L, the time taken being 88.52 min. The actual degradation efficiency of the dye reached 96.9% at optimized condition, which is quite close to the predicted value of 98.07%.

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Optimizing zinc oxide nanorods based DSSC employing different growth conditions and SnO coating

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-020-05001-2 ◽

2021 ◽

Author(s):

Syed Afaq Ali Shah ◽

Zhongyi Guo ◽

Muhammad Hassan Sayyad ◽

Jinghua Sun

Keyword(s):

Zinc Oxide ◽

Growth Conditions ◽

Zinc Oxide Nanorods ◽

Oxide Nanorods

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Optimisation of zinc oxide nanorods for use in dye sensitised solar cells

Materials Research Innovations ◽

10.1179/1433075x11y.0000000007 ◽

2011 ◽

Vol 15 (6) ◽

pp. 401-405 ◽

Cited By ~ 1

Author(s):

S K Lim ◽

H Q Le ◽

G K L Goh ◽

K K Lin ◽

S B Dolmanan

Keyword(s):

Zinc Oxide ◽

Solar Cells ◽

Zinc Oxide Nanorods ◽

Oxide Nanorods

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Cellulose Nanofiber-Based Nanocomposite Films Reinforced with Zinc Oxide Nanorods and Grapefruit Seed Extract

Nanomaterials ◽

10.3390/nano11040877 ◽

2021 ◽

Vol 11 (4) ◽

pp. 877 ◽

Cited By ~ 1

Author(s):

Swarup Roy ◽

Hyun Chan Kim ◽

Pooja S. Panicker ◽

Jong-Whan Rhim ◽

Jaehwan Kim

Keyword(s):

Thermal Stability ◽

Zinc Oxide ◽

Seed Extract ◽

Cellulose Nanofiber ◽

Nanocomposite Films ◽

Zinc Oxide Nanorods ◽

Precipitation Method ◽

Active Food Packaging ◽

Oxide Nanorods ◽

Grapefruit Seed Extract

Here, we report the fabrication and characterization of cellulose nanofiber (CNF)-based nanocomposite films reinforced with zinc oxide nanorods (ZnOs) and grapefruit seed extract (GSE). The CNF is isolated via a combination of chemical and physical methods, and the ZnO is prepared using a simple precipitation method. The ZnO and GSE are used as functional nanofillers to produce a CNF/ZnO/GSE film. Physical (morphology, chemical interactions, optical, mechanical, thermal stability, etc.) and functional (antimicrobial and antioxidant activities) film properties are tested. The incorporation of ZnO and GSE does not impact the crystalline structure, mechanical properties, or thermal stability of the CNF film. Nanocomposite films are highly transparent with improved ultraviolet blocking and vapor barrier properties. Moreover, the films exhibit effective antimicrobial and antioxidant actions. CNF/ZnO/GSE nanocomposite films with better quality and superior functional properties have many possibilities for active food packaging use.

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