A comprehensive review on electrospun nanohybrid membranes for wastewater treatment

• Senuri Kumarage,
• Imalka Munaweera and
• Nilwala Kottegoda

Beilstein J. Nanotechnol. 2022, 13, 137–159, doi:10.3762/bjnano.13.10

• flexible nanohybrid membrane of Pd NP-decorated polydopamine-SiO2/PVA, which can simultaneously remove organic dyes, chemicals, and oils [83]. (Figure 4 and Figure 5) Superhydrophilicity was found to be a synergistic effect of numerous hydroxy groups from SiO2 NPs and the nano/microscale surface roughness

Rapid, ultraviolet-induced, reversibly switchable wettability of superhydrophobic/superhydrophilic surfaces

• Yunlu Pan,
• Wenting Kong,
• Bharat Bhushan and
• Xuezeng Zhao

Beilstein J. Nanotechnol. 2019, 10, 866–873, doi:10.3762/bjnano.10.87

• illumination can be confirmed. It was found that the presence of trimethoxy(alkyl)silane in the TiO2–trimethoxy(alkyl)silane coating served to speed up the super-wettability transition time from superhydrophobicity to superhydrophilicity, but also limited the number of wettability recycle times. With this

• could be used to induce the property of switchable wettability under UV illumination. In order to be useful for many applications, the ability to rapidly switch the wettability from superhydrophobicity to superhydrophilicity is imperative. Several studies based on TiO2 have been carried out to prepare

• heating Both TiO2–PFOS coated surfaces and Al2O3–PFOS coated surfaces were directly illuminated under a UV lamp at a working distance of 10 mm, and the WCAs were recorded every 5 min. The TiO2–PFOS coated surface transitioned from superhydrophobicity to superhydrophilicity after only 10 min of UV exposure

Novel reversibly switchable wettability of superhydrophobic–superhydrophilic surfaces induced by charge injection and heating

• Xiangdong Ye,
• Junwen Hou and
• Dongbao Cai

Beilstein J. Nanotechnol. 2019, 10, 840–847, doi:10.3762/bjnano.10.84

• superhydrophobicity and superhydrophilicity has attracted widespread interest because of its important applications. In this work, we propose a reversible superhydrophobic–superhydrophilic conversion induced by charge injection and heating. Different from the conventional electrowetting phenomenon caused by the

• . Keywords: charge injection; heating; reversible wettability; superhydrophilic; superhydrophobic; Introduction Surfaces that are capable of reversibly switchable wettability have attracted increasing interest, especially those able to switch between superhydrophobicity and superhydrophilicity, and hence

• for converting superhydrophobic surfaces into superhydrophilic surfaces after only 10 min of ultraviolet irradiation. Gao et al. [6] prepared 18 alkyltrichlorosilane-modified TiO2 films for the reversible switching between superhydrophilicity and superhydrophobicity of a wood surface. Feng et al. [7

Surface roughness rather than surface chemistry essentially affects insect adhesion

• Matt W. England,
• Tomoya Sato,
• Makoto Yagihashi,
• Atsushi Hozumi,
• Stanislav N. Gorb and
• Elena V. Gorb

Beilstein J. Nanotechnol. 2016, 7, 1471–1479, doi:10.3762/bjnano.7.139

• attachment of the beetles. Surface roughness was found to be the dominant factor, strongly affecting the attachment ability of the beetles. Keywords: insect attachment; superhydrophilicity; superhydrophobicity; superoleophobicity; surface structures; Introduction The development of functional coatings that

• artificially mimic the properties of surfaces found in nature [1][2][3][4] to produce exceptional wetting/dewetting properties, such as superhydrophobicity, superhydrophilicity, and superoleophobicity (more commonly known as superamniphobicity or superomniphobicity), has been a major topic for research over

• hybrid film have been described elsewhere [10][12]. Three rough surfaces, each showing different wetting properties (superhydrophobicity, superhydrophilicity, and superomnipobicity) and morphologies were prepared as follows. The commercially available Never Wet coating system was used to prepare two

Functionalization of vertically aligned carbon nanotubes

• Eloise Van Hooijdonk,
• Carla Bittencourt,
• Rony Snyders and
• Jean-François Colomer

Beilstein J. Nanotechnol. 2013, 4, 129–152, doi:10.3762/bjnano.4.14

• post-treatment can reverse the phenomenon. It totally removes the grafted groups and re-establishes the hydrophobic character of the sample. They reported the ability to control the VA-CNTs wettability (from superhydrophilicity to superhydrophobicity) by combining both techniques. The change in the

Self-assembled monolayers and titanium dioxide: From surface patterning to potential applications

• Yaron Paz

Beilstein J. Nanotechnol. 2011, 2, 845–861, doi:10.3762/bjnano.2.94

• monolayers may affect the photocatalytic properties of titania as well as be affected by these properties. Likewise, the superhydrophilicity of TiO2 known to be induced upon exposure to UV light [13] may affect the chemisorption process of SAMs. This gives rise to diverse phenomena, which can be utilized in

• titanium dioxide is the loss in contrast over time, which is due to eventual contamination of the TiO2 surface upon adsorption of organic molecules from the air. Exposure to UV light may degrade these molecules, thus, restoring superhydrophilicity; however, it might also degrade the organic SAM and