Room temperature electrodeposition of photoactive Cd(OH)2 nanowires

Santamaria, Monica; Bocchetta, Patrizia; Quarto, F. Di

doi:10.1016/j.elecom.2008.12.043

Cited by 29 publications

(15 citation statements)

References 20 publications

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“…Because of these qualities, anodic alumina is broadly utilized in a broad range of applications, such as filtration processes [ 22 ], drug delivery [ 23 ], biosensing [ 24 ], oxygen sensing [ 25 ], corrosion resistors [ 26 ], catalysts [ 27 ], photograph catalysts [ 28 ], DNA sensors [ 29 ], cancer treatments [ 30 ], nanoparticle separation [ 31 ], electrochemical biosensors [ 32 ], and fluorescence detectors [ 33 ]. Besides, geometrical nanopore empowers researchers to utilize alumina as a template for the synthesis of nanostructures [ 34 , 35 ]. In a number of applications, controlling the nanostructure plays a pivotal role; however, in the case of anodic alumina, it can be easily controlled by customizing the electrochemical process parameters such as the duration of the process, the electrolytes used for anodization, and the method of anodization [ 36 ].…”

Section: Introductionmentioning

confidence: 99%

Development of Nanoporous AAO Membrane for Nano Filtration Using the Acoustophoresis Method

Patel

Janušas

Palevičius

et al. 2020

Sensors

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A concept of a nanoporous anodic aluminum oxide (AAO) membrane as a vibro-active micro/nano-filter in a micro hydro mechanical system for the filtration, separation, and manipulation of bioparticles is reported in this paper. For the fabrication of a nanoporous AAO, a two-step mild anodization (MA) and hard anodization (HA) technique was used. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) were used to analyze the surface morphology of nanoporous AAO. A nanoporous structure with a pore diameter in the range of 50–90 nm, an interpore distance of 110 nm, and an oxide layer thickness of 0.12 mm with 60.72% porosity was obtained. Fourier-transform infrared spectroscopy (FTIR) and energy-dispersive X-ray spectroscopy (EDS) were employed to evaluate AAO chemical properties. The obtained results showed that the AAO structure is of hexagonal symmetry and showed where Al2O3 is dominant. The hydrophobic properties of the nanoporous surface were characterized by water contact angle measurement. It was observed that the surface of the nanoporous AAO membrane is hydrophilic. Furthermore, to determine whether a nanomembrane could function as a vibro-active nano filter, a numerical simulation was performed using COMSOL Multiphysics 5.4 (COMSOL Inc, Stockholm, Sweden). Here, a membrane was excited at a frequency range of 0–100 kHz for surface acoustics wave (SAW) distribution on the surface of the nanoporous AAO using a PZT 5H cylinder (Piezo Hannas, Wuhan, China). The SAW, standing acoustic waves, and travelling acoustic waves of different wavelengths were excited to the fabricated AAO membrane and the results were compared with experimental ones, obtained from non-destructive testing method 3D scanning vibrometer (PSV-500-3D-HV, Polytec GmbH, Waldbronn, Germany) and holographic interferometry system (PRISM, Hy-Tech Forming Systems (USA), Phoenix, AZ, USA). Finally, a simulation of a single nanotube was performed to analyze the acoustic pressure distribution and time, needed to center nanoparticles in the nanotube.

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Section: Introductionmentioning

confidence: 99%

Development of Nanoporous AAO Membrane for Nano Filtration Using the Acoustophoresis Method

Patel

Janušas

Palevičius

et al. 2020

Sensors

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“…[22][23][24] Recent reports have shown that nanostructures with a well-defined morphology and rational architecture can effectively suppress the recombination rate of photoexcited carriers in photoactivated nanomaterials, and thus lead to an improved PEC or photocatalytic performance. [25][26][27][28][29][30] Various CdO nanostructures, such as nanowires, 20,21,31 nanobelts 16 and nanorods 32 have been reported. Despite these achievements, to design and develop new strategies for the controllable growth of CdO architectures is still very challenging.…”

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confidence: 99%

Improving the photoelectrochemical and photocatalytic performance of CdO nanorods with CdS decoration

Xie

et al. 2013

CrystEngComm

122

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“…2 The structures of Cd(OH) 2 depending on the extent of pH quenching [14] shows strong evidence of quantum confinement compared to bulk Cd(OH) 2 optical properties [52]. Santamaria et al [53] successfully prepared high-quality films and wellaligned compact nanowires of pure Cd(OH) 2 by inexpensive, room temperature cathodic electrodeposition from Cd 2+ containing aqueous solution. Yu and coworkers developed a new surfactant-free crystal growth process to prepare perpendicularly branched tripods via heterogeneous nucleation and anisotropic growth on substrates using a chemical liquid-phase deposition technique.…”

Section: Wet Chemical Methodsmentioning

confidence: 98%

Overview on the synthesis and applications of cadmium hydroxide nanomaterials

Liu

et al. 2015

J IRAN CHEM SOC

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common methods, such as hydrothermal method, solvothermal method, wet chemical method. Besides, the metalorganic coordination polymers (MOCPs) have been thought as effective templates to obtain the desired nanomaterials in the recent studies. By choosing appropriate MOCP precursors with special morphologies and under suitable experimental conditions, we can obtain the desired morphologies and even the nano-compounds that can be obtained by other methods [3,4]. Among the various divalent metal hydroxides, cadmium hydroxide [Cd(OH) 2 ] is a wide band gap semiconductor with a wide range of possible applications, including solar cells, phototransistors and diodes, transparent electrodes, and sensors, and consequently [5][6][7]. Furthermore, Cd(OH) 2 is an important precursor to prepare cadmium oxide (CdO) [8-11] by high-temperature calcination or for other functional materials such as cadmium sulfide (CdS) [12,13] and cadmium selenide (CdSe) [14-17] by reaction with appropriate compounds, which can be used as electrode additives to increase the discharge capacity of Cd-Ni batteries or pseudocapacitor and reduce self-discharge [18][19][20][21][22]. Numerous techniques have been proposed to synthesize various Cd(OH) 2 nanostructures with promising control of properties. And their potential applications and future prospects have also been discussed. Synthesis of Cd(OH) 2 nanomaterials Hydrothermal synthesisAs a common and an effective method to synthesize functional nanomaterials, hydrothermal synthesis method has the advantage of high yield, less pollution, and being easy to operate. And products with good crystallization and various morphologies can be prepared via hydrothermal Abstract Recently, Cd(OH) 2 nanomaterials have attracted attention because of their distinct properties. Cd(OH) 2 nanostructures with different morphologies have been successfully synthesized and used in various fields. In this paper, the preparation of Cd(OH) 2 nanomaterials is reviewed including hydrothermal, solvothermal, wet chemical, refluxing, microwave-assisted methods, and their applications are briefly introduced in hydrophobic and hydrophilic materials, adsorption of negative organic molecules, sensors, and electrode materials. The development trend and prospects of the preparation of nano Cd(OH) 2 are proposed.

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Room temperature electrodeposition of photoactive Cd(OH)2 nanowires

Cited by 29 publications

References 20 publications

Development of Nanoporous AAO Membrane for Nano Filtration Using the Acoustophoresis Method

Development of Nanoporous AAO Membrane for Nano Filtration Using the Acoustophoresis Method

Improving the photoelectrochemical and photocatalytic performance of CdO nanorods with CdS decoration

Overview on the synthesis and applications of cadmium hydroxide nanomaterials

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