The utilisation of wool as a catalyst and as a support for catalysts

McNeil, Steve; Sunderland, Matthew R.; Leighs, Samuel J.

doi:10.1016/j.apcata.2017.04.021

Cited by 29 publications

(14 citation statements)

References 154 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Introductionmentioning

confidence: 99%

“…In general, the supported catalyst may be more sterically hindered and hence less accessible to substrates as compared to its non‐supported counterpart, while the selectivity may be enhanced by the steric effect. Catalyst instability in the homogeneous phase is mainly caused by bimolecular deactivation pathways, which are prevented by immobilization of the catalyst to isolate the catalyst reactive sites …”

Section: Introductionmentioning

confidence: 99%

“…The immobilization of homogeneous catalysts on various insoluble supports such as as iliceous material makes the immobilized catalysti nsoluble in the reactions olution,p roviding great advantages for the easy separation of the catalystf rom the reaction mixture, the fast isolation of the reaction products, and catalyst recovery and recycling by simple filtration. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] The immobilization of homogeneous catalysts also allows insoluble catalysts, which would otherwise be aggregated, to be well dispersed in the reaction medium such as water, resultingi nt he significant enhancement in the catalytic activity.T he use of water as solvent with immobilizedc atalysts also call attentiont ot he importance of the requirements of green chemistry. [21][22][23][24][25][26] In general,t he supported catalyst may be more sterically hindered and hence less accessible to substrates as compared to its non-supported counterpart,w hile the selectivity may be enhanced by the steric effect.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Immobilization of Molecular Catalysts for Enhanced Redox Catalysis

2018

View full text Add to dashboard Cite

In the homogenous phase, redox catalysts are often deactivated by bimolecular reactions. For example, the charge‐separated state of photoredox catalysts decayed via bimolecular back electron transfer reactions between the charge‐separated molecules to decrease the lifetimes of the catalytically active species. When photoredox catalysts are immobilized on solid supports, the lifetime of the charge‐separated state was remarkably elongated to enhance the photocatalytic activity. Immobilization of photoredox catalysts on electrodes is required for photocurrent generation, leading to development of solar cells. Metal‐oxygen intermediates, which are active for oxidation of various substrates including water oxidation, are also deactivated via bimolecular reactions to produce inactive forms such as dinuclear metal bis‐μ‐oxo complexes. Immobilization of metal complex catalysts on solid supports prohibits the bimolecular deactivation, enhancing the catalytic activity and stability. This Review focuses on recent development of immobilization of both organic and inorganic molecular catalysts on various supports for enhancement of the catalytic activity, selectivity and stability in thermal and photoinduced redox reactions.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Immobilization of Molecular Catalysts for Enhanced Redox Catalysis

2018

View full text Add to dashboard Cite

show abstract

“…Coming to the present era, wool is still an important fibre being nature protective (Russell I. M., 2009), diverse in its characteristic and composition and unique qualities which make it the best natural fibre (Laitala, Klepp, & Henery, 2018). That is why it is back in demand not only for clothing but multiple other purposes (McNeil, Sunderland, & Leighs, 2017) and technical uses (Rossi, Emanuele, Andrea, Elisabetta, & Franco, 2016). Its properties can be enhanced by using different chemicals to make it resistant to fire, crease, and water, insects and microbes (Sunderland, Robert, & Samuel, 2014).…”

Section: Discussionmentioning

confidence: 99%

Pattu: The Dying Fabric Making Art of Baltistan

Haider

Masood

Kalsoom³

2021

GSSR

View full text Add to dashboard Cite

The traditional Balti dresses were made with a beautiful material, "Pattu". We conducted a survey regarding the procedure of pattu making in Baltistan. The data was collected through in-depth interviews of 30 personnel who were associated with pattu making art. Thematic analysis has been adopted to examine the responses. Pattu fibre was obtained from sheep next convert into yarn and then into the fabric. Pattu was dyed with the help of leaves and fruits. Pattu was used in garments, caps, shawls and carpets. It is the need of time to work on the revival of this dying art of making pattu with new innovations to improve the procedure and speed of making fabric. This study will provide knowledge to our new generations about traditional fabric which helps them build a strong bond with the culture. Bringing the skilled persons from Baltistan on the front line and create economic opportunities for them.

show abstract

“…These somewhat empty orbitals can be used in the resulting oxidation mechanisms. The ions of transition elements, such as especially manganese, iron, cobalt, nickel, palladium, platinum, tungsten, silver, and copper, have frequently been used in different oxidation numbers in obtaining these catalysts [21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Investigation of The Effects of Diaminopyridine and o-Vanillin Derivative Schiff Base Complexes of Mn(II), Mn(III), Co(II) and Zn(II) Metals on The Oxidative Bleaching Performance of H2O2

Uğur¹,

Tuna

2021

Sakarya University Journal of Science

View full text Add to dashboard Cite

Catalytic applications are widely used in industrial and individual applications today due to their many advantages, especially the energy and time they provide. For this purpose, many coordination compounds have been synthesized, and their catalytic performances have been investigated in recent years. In this study, the Schiff base ligand, (N,N'-bis(2-hydroxy-3methoxyphenylmethylidene)-2,6-pyridinediamine, BHMP), was synthesized with 2,6diaminopyridine with o-vanillin. Mn(II), Mn(III), Co(II), Zn(II) complexes were obtained with the synthesized ligand. Spectroscopic methods such as FT-IR, 1 H-NMR, UV-vis, Mass, and melting point determination methods were used for the structure elucidation of the synthesized compounds. The performances of the obtained complexes as bleach catalysts, which are an important application area of Schiff base complexes, were investigated. According to the bleaching measurement results, the highest catalytic effect on the bleaching performance of H2O2 in pH 10.5 buffer at 25 °C under homogeneous conditions was obtained with Co(II) complex. It was understood that this complex was followed by Mn(II), Mn(III), and Zn(II) complexes, respectively.

show abstract

The utilisation of wool as a catalyst and as a support for catalysts

Cited by 29 publications

References 154 publications

Immobilization of Molecular Catalysts for Enhanced Redox Catalysis

Immobilization of Molecular Catalysts for Enhanced Redox Catalysis

Pattu: The Dying Fabric Making Art of Baltistan

Investigation of The Effects of Diaminopyridine and o-Vanillin Derivative Schiff Base Complexes of Mn(II), Mn(III), Co(II) and Zn(II) Metals on The Oxidative Bleaching Performance of H2O2

Contact Info

Product

Resources

About