Fabrication of superhydrophilic Cu2O and CuO membranes

Tang, Kangjian; Wang, Xiaofang; Yan, Wenfu; Yu, Jihong; Xu, Ruren

doi:10.1016/j.memsci.2006.10.005

Cited by 62 publications

(25 citation statements)

References 24 publications

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“…The Cu2p XPS spectra of 5% Cu 2 O-P25 prepared with and without hydroxylamine hydrochloride are shown in Fig.2(b). For the sample prepared with hydroxylamine hydrochloride as the reductant, the peaks at 931.8 eV (Cu 2p 3/2 ) and 951.5eV (Cu2p 1/2 ) were assigned to the Cu + characteristic peak, which is the same as the standard binding energy of Cu2p in Cu 2 O [12]. While, for the sample prepared without hydroxylamine hydrochloride, the binding energies located at 934.9 and 955.1 eV correspond to the Cu 2+ characteristic peaks of CuO, indicating the Cu 2+ can not be transformed to Cu + without the effective reduatant in the synthesis process.…”

Section: Figurementioning

confidence: 94%

Fabrication of Cu₂O-TiO₂Nano-composite with High Photocatalytic Performance under Simulated Solar Light

Yan

et al. 2016

MATEC Web Conf.

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Cu 2 O-P25 (TiO 2 ) nano-heterostructures with different mass ratios were synthesized via a wet chemical precipitation and hydrothermal method, and were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), UV-vis diffuse reflectance spectra (DRS), and X-ray photoelectron spectroscopy (XPS). DRS results showed that the light absorption of P25 extended to the visible light region with the loading of Cu 2 O. XPS results showed that Cu existed in the state of Cu + in the presence of hydroxylamine hydrochloride, confirming the formation of Cu 2 O. The obtained products exhibited efficient photocatalytic performance in degradation of methyl orange (MO) and methylene blue (MB) under simulated solar light. The sample of 5% Cu 2 O-P25 exhibited the highest photocatalytic activity among all as-prepared samples. And the photocatalysts can be recycled without obvious loss of photocatalytic activity.

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Section: Figurementioning

confidence: 94%

Fabrication of Cu₂O-TiO₂Nano-composite with High Photocatalytic Performance under Simulated Solar Light

Yan

et al. 2016

MATEC Web Conf.

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“…The inorganic subjects consist of TiO2 [9] , SiO2 [10] , In2O3-SnO2 [11] , Cu2O and CuO [12] . And the organic subjects include PNIPAAm/PLLA (poly(N-isopropylacrylamide)/ poly(L-lactide)) [13] , DMAEMA/MMA (2-(dimethylamino)-ethylmethacrylate/methyl methacrylate) [14] .…”

Section: Instructionmentioning

confidence: 99%

TEOS/Silane-Coupling Agent Composed Double Layers Structure: A Novel Super-hydrophilic Surface

Wang

Yang

2015

Energy Procedia

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In order to increase the anti-dust and self-cleaning property of photovoltaic cells, this paper proposes a simple way to synthesis a novel self-cleaning, super-hydrophilic coating material based on double layers structure. The first layer is made from TEOS for gaining the number of Si-OH bond on the surface of the glass, and then the second layer, which is a special silane-coupling agent, is attached on the TEOS layer firmly. Since the silane-coupling agent has a superhydrophilic chain, after the reaction, such kind of chain would go towards to the outside surface of the glass substrate and make the surface super-hydrophilic. InstructionGreenhouse gas emissions due to burning fossil fuels are the great challenge to human beings nowadays. For decreasing fossil energy consumption, renewable energy should be used. Solar energy application is an effective method. And an effective way to use the solar energy is to generate solar power from photovoltaic (PV) cells. [1] However, a lot of factors affect the energy efficiency of solar PV panels, such as the temperature, orientation, solar radiation intensity, front surface soiling [2][3][4][5] and so on. Among them, front surface soiling could influence the efficiency a lot if the PV cell is soiled badly. For example, the dust accumulation on the front surface is a major factor, which cause the huge decrease of the cell

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“…Notably, superhydrophilic surfaces with CA < 5 have presented remarkable prospects for application as surfaces with self-cleaning 25,26 or antifogging properties 27,28 as well as for the purposes of heat transfer 29 and biomolecular immobilization, 25 among others. Based on its water contact angle (CA), a material is characterized in terms of its surface wettability as either hydrophilic (CA < 90 ) or hydrophobic (CA > 90 ).…”

Section: Introductionmentioning

confidence: 99%

Anisotropic growth of Ni₃(BO₃)₂ nanowhiskers on nickel substrates and its application in the fabrication of superhydrophilic surfaces

Wang

Feng

et al. 2015

RSC Adv.

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One-dimensional (1D) single-crystalline nickel borate [Ni 3 (BO 3 ) 2 ] nanowhiskers were successfully grown on Ni substrates using the facile molten-salt method in air with MnO 2 as the agent. The products were characterized via X-ray diffraction, scanning electron microscopy, and transmission electron microscopy.The Ni 3 (BO 3 ) 2 nanowhiskers that were synthesized at 950 C, with diameters ranging from 120 to 250 nm and lengths of up to 50 mm, possessed an ultra-high aspect ratio (more than 100 : 1) and were found to grow along the [021] crystallographic direction. The effects of the growth temperature, holding time and amount of agent on the product morphology were investigated in detail. The products retained a nanowhisker morphology at growth temperatures below 1000 C but transformed into microtubes when synthesized at 1050 C. The oxygen liberated by the manganese oxides facilitated the nucleation of Ni 3 (BO 3 ) 2 nanowhiskers. In addition, the surfaces coated with the Ni 3 (BO 3 ) 2 nanowhiskers exhibited good superhydrophilic properties, and the wetting dynamics of such surfaces was investigated.

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Fabrication of superhydrophilic Cu2O and CuO membranes

Cited by 62 publications

References 24 publications

Fabrication of Cu₂O-TiO₂Nano-composite with High Photocatalytic Performance under Simulated Solar Light

Fabrication of Cu₂O-TiO₂Nano-composite with High Photocatalytic Performance under Simulated Solar Light

TEOS/Silane-Coupling Agent Composed Double Layers Structure: A Novel Super-hydrophilic Surface

Anisotropic growth of Ni₃(BO₃)₂ nanowhiskers on nickel substrates and its application in the fabrication of superhydrophilic surfaces

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Fabrication of superhydrophilic Cu2O and CuO membranes

Cited by 62 publications

References 24 publications

Fabrication of Cu2O-TiO2Nano-composite with High Photocatalytic Performance under Simulated Solar Light

Fabrication of Cu2O-TiO2Nano-composite with High Photocatalytic Performance under Simulated Solar Light

TEOS/Silane-Coupling Agent Composed Double Layers Structure: A Novel Super-hydrophilic Surface

Anisotropic growth of Ni3(BO3)2 nanowhiskers on nickel substrates and its application in the fabrication of superhydrophilic surfaces

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Fabrication of Cu₂O-TiO₂Nano-composite with High Photocatalytic Performance under Simulated Solar Light

Fabrication of Cu₂O-TiO₂Nano-composite with High Photocatalytic Performance under Simulated Solar Light

Anisotropic growth of Ni₃(BO₃)₂ nanowhiskers on nickel substrates and its application in the fabrication of superhydrophilic surfaces