Disperse styryl and azo dyes for polyester and nylon fibre: Synthesis, optical properties having the 1,2,4-triketo naphthoquinone skeleton

Patil, Sharad R.; Choudhary, Amol S.; Sekar, Nagaiyan

doi:10.1007/s12221-015-1068-8

Cited by 18 publications

(6 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lawsone analogs, such as the natural anthraquinones emodin and dermocybin, exhibit differences in color; i.e., emodin dyed polyamide is brownish-orange, while dyed with dermocybin is wine red, but on polyester, the colors are totally different: bright yellow and bright reddish-orange, respectively [ 28 ]. Similar results were obtained for different styryl and azo-lawsone dyes of synthetic origin, exhibiting brown (CIELab: 25.057, 13.577, and 17.516) and orange (CIELab: 63.554, 36.699, and 67.159) colors on polyester, respectively, while on nylon, both exhibited darker colors (L* < 40) in the yellow-red quadrant, which agree with our results [ 29 , 30 ]. Moreover, polymers based on lawsone have been obtained with color differences.…”

Section: Resultssupporting

confidence: 92%

An Experimental and Theoretical Study of Dye Properties of Thiophenyl Derivatives of 2-Hydroxy-1,4-naphthoquinone (Lawsone)

et al. 2021

View full text Add to dashboard Cite

A prospective study of the dye properties of non-toxic lawsone thiophenyl derivatives, obtained using a green synthetic methodology allowed for the description of their bathochromic shifts in comparison to those of lawsone, a well-known natural pigment used as a colorant that recently also has aroused interest in dye-sensitized solar cells (DSSC). These compounds exhibited colors close to red, with absorption bands in visible and UV wavelength range. The colorimetric study showed that these compounds exhibited a darker color than that of lawsone within a range of colors depending on the substituent in the phenyl ring. Computational calculations employing Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT), showed that the derivatives have lower excitation energies than lawsone, while the alignment of their frontier orbitals regarding the conduction bands of TiO2 and ZnO and the redox potential of the electrolyte I−/I3− suggests that they could be employed as sensitizers. The study of the interactions of the lawsone and a derivative with a TiO2 surface model by different anchoring modes, showed that the adsorption is thermodynamically favored. Natural bond orbital (NBO) analysis indicates a two-center bonding (BD) O-Ti as the main interaction of the dyes with TiO2.

show abstract

Section: Resultssupporting

confidence: 92%

An Experimental and Theoretical Study of Dye Properties of Thiophenyl Derivatives of 2-Hydroxy-1,4-naphthoquinone (Lawsone)

et al. 2021

View full text Add to dashboard Cite

show abstract

“…A wide variety of dyes have been extensively used in many industries such as the pulp, leather, cosmetics, food, paper, and textile industries [17]. Synthetic dyes have harmful effects on the environment owing to their toxicity to microbes, hydrophytes, and animals.…”

Section: Introductionmentioning

confidence: 99%

Laccase Immobilization on Poly(p-Phenylenediamine)/Fe3O4 Nanocomposite for Reactive Blue 19 Dye Removal

et al. 2016

View full text Add to dashboard Cite

Magnetic poly(p-phenylenediamine) (PpPD) nanocomposite was synthesized via mixing p-phenylenediamine solution and Fe 3 O 4 nanoparticles and used as a carrier for immobilized enzymes. Successful synthesis of PpPD/Fe 3 O 4 nanofiber was confirmed by transmission electron microscopy and Fourier transform infrared spectroscopy. Laccase (Lac) was immobilized on the surface of PpPD/Fe 3 O 4 nanofiber through covalent bonding for reactive blue 19 dye removal. The immobilized Lac-nanofiber conjugates could be recovered from the reaction solution using a magnet. The optimum reaction pH and temperature for the immobilized Lac were 3.5 and 65 • C, respectively. The storage, operational stability, and thermal stability of the immobilized Lac were higher than those of its free counterpart. The dye removal efficiency of immobilized Lac was about 80% in the first 1 h of incubation, while that of free Lac was about 20%. It was found that the unique electronic properties of PpPD might underlie the high dye removal efficiency of immobilized Lac. Over a period of repeated operation, the dye removal efficiency was above 90% during the first two cycles and remained at about 43% after eight cycles. Immobilized Lac on PpPD/Fe 3 O 4 nanofiber showed high stability, easy recovery, reuse capabilities, and a high removal efficiency for reactive blue 19 dye; therefore, it provides an optional tool for dye removal from wastewater.

show abstract

“…The reaction proceeds via intermediate A, formed by the activation of 1 with solid acid. Subsequently, the intermediate B, which could be isolated from the reaction mixture , was formed via dehydration reaction under the effect of catalyst. Then, the intermediate C was generated from the reaction of enamine 3 with intermediate B.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Tetrahydrobenzo[g]Quinoline Derivatives Using Recoverable Carbonaceous Material as Heterogeneous Catalyst

Lin

Chen

et al. 2017

Journal of Heterocyclic Chem

View full text Add to dashboard Cite

A variety of substituted benzo[g]quinoline‐5,10‐dione derivatives were synthesized via one‐pot three‐component reaction of 2‐hydroxynaphthalene‐1,4‐dione, aromatic aldehydes, and (E)‐3‐aminobut‐2‐enoates using carbonaceous material as the heterocyclic catalyst. This procedure is simple and efficient owing to short reaction times, easy work‐up, and recovery of heterogeneous catalyst. This procedure develops an efficient and promising synthetic method to construction of the benzo[g]quinoline‐5,10‐dione skeleton.

show abstract

Disperse styryl and azo dyes for polyester and nylon fibre: Synthesis, optical properties having the 1,2,4-triketo naphthoquinone skeleton

Cited by 18 publications

References 12 publications

An Experimental and Theoretical Study of Dye Properties of Thiophenyl Derivatives of 2-Hydroxy-1,4-naphthoquinone (Lawsone)

An Experimental and Theoretical Study of Dye Properties of Thiophenyl Derivatives of 2-Hydroxy-1,4-naphthoquinone (Lawsone)

Laccase Immobilization on Poly(p-Phenylenediamine)/Fe3O4 Nanocomposite for Reactive Blue 19 Dye Removal

Synthesis of Tetrahydrobenzo[g]Quinoline Derivatives Using Recoverable Carbonaceous Material as Heterogeneous Catalyst

Contact Info

Product

Resources

About