Thiol–ene click reaction on cellulose sponge and its application for oil/water separation

Wu, Zhenzhen; Li, Yingzhan; Zhang, Linping; Zhong, Yi; Xu, Hong; Mao, Zhiping; Wang, Bijia; Sui, Xiaofeng

doi:10.1039/c7ra00847c

Cited by 45 publications

(23 citation statements)

References 41 publications

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“…[ 8 ] Apart from conventional methods, recently several photocatalytic thiol–ene click reaction protocols were reported ever since Yoon and his co‐workers first successfully demonstrated visible‐light‐induced thiol–ene click reaction by ruthenium‐based photocatalyst in 2013. [ 9 ] The reasons behind this interest were the applicability of photocatalytic thiol–ene click reaction as a tool for a variety of platinum drug delivery carriers, [ 10 ] syntheses of biodegradable antibacterial hydrogels, [ 11 ] flexible hydrophilic cellulose sponge preparation for oil–water separation, [ 12 ] and for biosensing. [ 13 ] This chemistry also bears a huge potential in the construction of natural products, [ 14 ] drug molecules, [ 14 ] polymers, [ 7,15 ] pharmaceutical materials, [ 16 ] and peptide chemistry.…”

Section: Introductionmentioning

confidence: 99%

Facile Thiol–Ene Click Protocol Using Benzil as Sensitizer and White LED as Light Source

Das

Thomas

2020

Eur J Org Chem

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The thiol–ene reaction leading to a series of thioether derivatives by simple metal and oxidant free visible light promoted photosensitized protocol, following anti‐Markonikov hydrothiolation of unactivated aryl and alkyl olefins at room temperature is demonstrated. Benzil served as a green photosensitizer in this reaction and white LED lights as a light source. This radical based thiol–ene reaction is operationally simple and tolerates a wide variety of functional groups present in olefins.

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Section: Introductionmentioning

confidence: 99%

Facile Thiol–Ene Click Protocol Using Benzil as Sensitizer and White LED as Light Source

Das

Thomas

2020

Eur J Org Chem

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“…The freezing temperature was also an important parameter and more homogenous sponge structures were obtained at −20 °C, as indicated by relatively smooth, partially delaminated walls that are advantageous for high levels of surface attachment (Figure S4, Supporting Information). These morphological features stand out in comparison to the typically observed, highly porous walls of 3D sponge scaffolds formed from fibril‐like natural materials, [ 40,41 ] and the use of highly uniform pollen grains in this fabrication strategy provides a similar templating function to colloidal microparticles used in designing inverted colloidal crystal scaffolds, for example. [ 42 ]…”

Section: Resultsmentioning

confidence: 99%

Colloid‐Mediated Fabrication of a 3D Pollen Sponge for Oil Remediation Applications

Hwang

Ibrahim

Deng

et al. 2021

Adv Funct Materials

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There is tremendous interest in developing 3D scaffolds from natural materials for a wide range of healthcare, energy, photonic, and environmental science applications. To date, most natural materials that are used to make 3D scaffolds consist of fibril structures; however, it would be advantageous to explore the development of scaffolds from natural materials with distinct supramolecular structures. Herein, the fabrication of a mechanically responsive pollen sponge that exhibits tunable 3D scaffold properties and is useful for oil remediation applications is reported. By using pollen‐based microgel particles as colloidal building blocks, the sponge fabrication process is optimized by tuning the processing conditions during freeze‐drying and thermal annealing steps. Stearic acid functionalization transforms the pollen sponge into a hydrophobic scaffold that can readily and repeatedly absorb oil and other organic solvents from contaminated water sources, with similar performance levels to commercial, synthetic polymer‐based absorbents and an improved environmental footprint.

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“…The low intense peak reveals that MPA was bound with the surface of CIS:ZnS QDs. Hence, the results suggest the partial ligand exchange of MPA over the OLA-capped QDs [18,19]. The solar cells were fabricated by sandwiching the CIS:ZnS QD-sensitized TiO 2 photoanode and copper sulphide counter electrode.…”

Section: Resultsmentioning

confidence: 99%

Copper indium sulphide:zinc sulphide (CIS:ZnS)-alloyed quantum dots as an eco-friendly absorber in solar cells

et al. 2019

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Synthesis and characterization of less toxic copper indium zinc sulphide (CIS:ZnS)-alloyed quantum dots (QDs) were carried out and the ligand exchange process towards the efficiency enhancement in CIS:ZnS QD-sensitized solar cell was demonstrated. The colloidal CIS:ZnS QDs were synthesized by an inexpensive heat up method with oleic acid as the capping ligand. The optical properties were analysed through ultraviolet-visible absorption and photoluminescence emission spectroscopy. The influence of the ligand exchange process on the CIS:ZnS QD-based solar cells was analysed with the fabrication of two batches of solar cells. The ligand exchange process was confirmed from Fourier transform infrared and thermogravimetric analyses. The QD-sensitized solar cells were fabricated using a CIS:ZnS QD-loaded titania photoanode and by employing copper sulphide as the counter electrode. The photovoltaic performance of the fabricated QD solar cells was analysed through photovoltaic characterization methods (current density-voltage characteristics of the devices under the simulated solar light conditions and external quantum efficiency measurements). The ligand-exchanged QD-loaded solar cells show enhanced power conversion efficiency compared to the long chain ligand-capped CIS:ZnS QD-sensitized solar cells.

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Thiol–ene click reaction on cellulose sponge and its application for oil/water separation

Abstract: Thiol–ene click reaction was employed to synthesize a flexible hydrophilic cellulose sponge. The sponge can be circular used in oil/water mixture (emulsion) separation and hold separation efficiency high separation efficiency.

Cited by 45 publications

References 41 publications

Facile Thiol–Ene Click Protocol Using Benzil as Sensitizer and White LED as Light Source

Facile Thiol–Ene Click Protocol Using Benzil as Sensitizer and White LED as Light Source

Colloid‐Mediated Fabrication of a 3D Pollen Sponge for Oil Remediation Applications

Copper indium sulphide:zinc sulphide (CIS:ZnS)-alloyed quantum dots as an eco-friendly absorber in solar cells

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