Preparation of superhydrophobic cauliflower-like silica nanospheres with tunable water adhesion

Wang, Min; Chen, Chen; Ma, Jiping; Xu, Jie

doi:10.1039/c1jm10283d

Cited by 88 publications

(74 citation statements)

References 51 publications

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“…In order to characterize the chemical structure of the surface of the modified SPs, solid-state 29 Si NMR was used.…”

Section: Resultsmentioning

confidence: 99%

“…Si MAS NMR spectra obtained from the SPs below 1 wt % PST shows no T type signals that 29 Si NMR spectra was not a powerful tool for characterizing the surface of SPs modified with quite low amount of modifier used in our NMR experimental conditions. On the basis of T m signals in the 29 Si MAS NMR data, the relative peak area of Q n and T m NMR signals allows the quantitative assessment of the incorporation degree of the organic moiety.…”

mentioning

confidence: 99%

“…On the basis of T m signals in the 29 Si MAS NMR data, the relative peak area of Q n and T m NMR signals allows the quantitative assessment of the incorporation degree of the organic moiety. As shown in Table 2, ΣT m /(ΣT m + ΣQ n ) are in close agreement with those expected based on the added modifier.…”

mentioning

confidence: 99%

“…The data were acquired using a single pulse sequence with a pulse repetition delay of 100 s, an excitation pulse length of 1.5 μs, and field strength of 62.5 kHz. 29 Si NMR spectra were obtained with 2000 μs CP contact time, 5 s recycle delay, and proton excitation pulse length of 4 μs.…”

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confidence: 99%

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Facile Modification of Surface of Silica Particles with Organosilanepolyol and Their Characterization

Lee¹,

Han²,

Yoo³

2013

Bulletin of the Korean Chemical Society

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The surface modification of silica particles (SPs) was systemically conducted by the treatment of 0.1-10 wt % phenylsilanetriol (PST) on the basis of SPs used through two step processes: 1) the PST coating of SPs via evaporation under reduced pressure and 2) their thermal condensation leading to Si-O-Si bond formation via heating at 130°C. The evaluation of the modified SPs was conducted by the simple floating test on water and the measurement of the contact angle (CA) of water droplet on the 2-dimensional layer of modified SPs on slide glass. When PST was used about 2 wt % or above on the basis of SPs (about average size: 50 nm) used, the modified SPs were fully floated on the water and all dispersed into upper organic solvent layer after a shaking with the mixture of the water and benzene, indicating that the modified SPs have hydrophobic properties. The modified SPs were characterized by 29Si MAS NMR and physicochemical properties including SEM, TEM, BET, adsorption/desorption isotherms, etc. were measured and compared each other in details. This research demonstrates that the organosilanetriol is a good modifier applicable for the surface modification of inorganic oxide particles using a low amount of modifier on the basis of oxide particles used.

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“…In order to characterize the chemical structure of the surface of the modified SPs, solid-state 29 Si NMR was used.…”

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Facile Modification of Surface of Silica Particles with Organosilanepolyol and Their Characterization

Lee¹,

Han²,

Yoo³

2013

Bulletin of the Korean Chemical Society

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“…36 The phase of the as-prepared cobalt hydroxide was examined by X-ray powder diffraction (XRD) (Fig. 1).…”

Section: 10mentioning

confidence: 99%

Preparation of self-assembled cobalt hydroxide nanoflowers and the catalytic decomposition of cyclohexyl hydroperoxide

Wang

Chen

et al. 2011

J. Mater. Chem.

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a-Co(OH) 2 hierarchical nanoflowers were synthesized using a microemulsion as a nanoreactor. These structures were selfassembled from cobalt hydroxide nanoflakes and possessed flowerlike morphology with a diameter of 200-500 nm. These a-Co(OH) 2 nanoflowers exhibited high specific area and porosity and show high activity in the decomposition of cyclohexyl hydroperoxide. 99% conversion and 94% selectivity for K-A oil could be obtained.Cobalt hydroxides have attracted great interest over the last two decades, owing to their unique physical and chemical properties, such as their layered structure with large interlayer spacing and welldefined electrochemical redox activity, which make them show great potential in magnetics, catalysis, electrochemistry, and sensing devices.

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Regulating Water Adhesion on Superhydrophobic TiO₂ Nanotube Arrays

Zhang

Liu

et al. 2014

Adv Funct Materials

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Preparation of superhydrophobic cauliflower-like silica nanospheres with tunable water adhesion

Cited by 88 publications

References 51 publications

Facile Modification of Surface of Silica Particles with Organosilanepolyol and Their Characterization

Facile Modification of Surface of Silica Particles with Organosilanepolyol and Their Characterization

Preparation of self-assembled cobalt hydroxide nanoflowers and the catalytic decomposition of cyclohexyl hydroperoxide

Regulating Water Adhesion on Superhydrophobic TiO₂ Nanotube Arrays

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Preparation of superhydrophobic cauliflower-like silica nanospheres with tunable water adhesion

Cited by 88 publications

References 51 publications

Facile Modification of Surface of Silica Particles with Organosilanepolyol and Their Characterization

Facile Modification of Surface of Silica Particles with Organosilanepolyol and Their Characterization

Preparation of self-assembled cobalt hydroxide nanoflowers and the catalytic decomposition of cyclohexyl hydroperoxide

Regulating Water Adhesion on Superhydrophobic TiO2 Nanotube Arrays

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Regulating Water Adhesion on Superhydrophobic TiO₂ Nanotube Arrays