Biochar-Based Graphitic Carbon Nitride Adorned with Ionic Liquid Containing Acidic Polymer: A Versatile, Non-Metallic Catalyst for Acid Catalyzed Reaction

Sadjadi, Samahe; Koohestani, Fatemeh; Heravi, Majid M.

doi:10.3390/molecules25245958

Cited by 10 publications

(4 citation statements)

References 77 publications

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“… Entry Catalyst Solvent Time (h:min) Temp. °C Recycle run Yield (%) Ref 1 MOF-PIL-AM H 2 O(US) 00:05 25 5 100 This work 2 BC@GCN-P-IL a H 2 O 2:00 25 5 100 51 3 Activated Hf-UiO-66-N 2 H 3 EtOH 4:00 25 5 98 47 4 Glycine [6-mim] PF 6 22:00 25 2 77 45 5 [H 3 N + -CH 2 -CH 2- OH][CH 3 COO - ]IL Solvent free < 1:00 25 5 90.9 48 6 Caffein-SiO 2 @Fe 3 O 4 H 2 O (US) 00:06 60 5 94 46 …”

Section: Resultsmentioning

confidence: 98%

A novel composite of ionic liquid-containing polymer and metal–organic framework as an efficient catalyst for ultrasonic-assisted Knoevenagel condensation

Sadjadi

Koohestani

Heravi

2022

Sci Rep

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Abstract1-Butyl-3-vinylimidazolium chloride was synthesized and polymerized with acrylamide to furnish an ionic liquid-containing polymer, which was then used for the formation of a composite with iron-based metal–organic framework. The resultant composite was characterized with XRD, TGA, FE-SEM, FTIR, EDS and elemental mapping analyses and its catalytic activity was appraised for ultrasonic-assisted Knoevenagel condensation. The results confirmed that the prepared composite could promote the reaction efficiently to furnish the corresponding products in high yields in very short reaction times. Moreover, the composite exhibited high recyclability up to six runs. It was also established that the activity of the composite was higher compared to pristine metal–organic framework or polymer.

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Section: Resultsmentioning

confidence: 98%

A novel composite of ionic liquid-containing polymer and metal–organic framework as an efficient catalyst for ultrasonic-assisted Knoevenagel condensation

Sadjadi

Koohestani

Heravi

2022

Sci Rep

Self Cite

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“…They also tried tandem condensation based on acid-base bifunctional natures of S- g -C 3 N 4 and obtained naphthopyrone derivatives in high TON. Sadjadi and his co-workers also introduced acidic and ionic-liquid functions in graphitic carbon nitride which was prepared by the calcination of Zinnia grandiflora petals and urea, followed by the polymerization of 2-acrylamido-2-methyl-1-propanesulfonic acid, acrylic acid and the as-prepared 1-vinyl-3-butylimidazolium chloride [ 104 ]. The resulting carbon nitrides have high catalytic activities for the Knoevenagel condensation of a series of benzaldehyde with malononitrile.…”

Section: Prominent Catalysis Using Carbon Nitridementioning

confidence: 99%

Organocatalysis with carbon nitrides

Ruban

Ramadass

Singh

et al. 2023

Science and Technology of Advanced Materials

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Carbon nitrides, a distinguished class of metal-free catalytic materials, have presented a good potential for chemical transformations and are expected to become prominent materials for organocatalysis. This is largely possible due to their low cost, exceptional thermal and chemical stability, non-toxicity, ease of functionalization, porosity development, etc. Especially, the carbon nitrides with increased porosity and nitrogen contents are more versatile than their bulk counterparts for catalysis. These N-rich carbon nitrides are discussed in the earlier parts of the review. Later, the review highlights the role of such carbon nitride materials for the various organic catalytic reactions including Knoevenagel condensation, oxidation, hydrogenation, esterification, transesterification, cycloaddition, and hydrolysis. The recently emerging concepts in carbon nitride-based organocatalysis have been given special attention. In each of the sections, the structure–property relationship of the materials was discussed and related to their catalysis action. Relevant comparisons with other catalytic materials are also discussed to realize their real potential value. The perspective, challenges, and future directions are also discussed. The overall objective of this review is to provide up-to-date information on new developments in carbon nitride-based organic catalysis reactions that could see them rising as prominent catalytic materials in the future.

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“…VBIB was prepared according to the previous report 60 . Briefly, the mixture of 1-bromobutane (4 g) and 1-vinylimidazole (2 g) was stirred at 70 °C under solvent-free condition for 16 h under inert atmosphere.…”

Section: Synthesis Of Vbibmentioning

confidence: 99%

Pd on thermo-responsive composite of silica-coated carbon nanotube and 1-vinyl-3-butylimidazolium-based ionic liquid copolymers as an efficient catalyst for hydrogenation of nitro compounds

Sadjadi

Abedian-Dehaghani

Heravi

2022

Sci Rep

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In this work, an ionic liquid-containing thermo-responsive heterogeneous catalyst with utility for promoting hydrogenation of nitro-compounds in aqueous media is developed. To prepare the catalyst, silica-coated carbon nanotubes were synthesized and vinyl-functionalized. The resulted compound was then polymerized with 1-viny-3-butylimidazolium bromide and N-isopropylacrylamide. The obtained ionic liquid-containing thermo-responsive composite was palladated via wet-impregnation method to give the final catalyst. Study of the performance of the catalyst confirmed high catalytic activity of the catalyst at temperature above the lower critical solution temperature. Furthermore, the catalyst was highly recyclable and showed negligible Pd leaching upon recycling. Broad substrate scope and selectivity of the catalyst towards reduction of nitro functionality were also confirmed. Furthermore, hot filtration test implied the heterogeneous nature of the catalysis. The comparison of the activity of Pd/CNT-P with some control catalysts approved the importance of hybridization of P and CNT and the presence of ionic liquid for the catalytic activity.

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Biochar-Based Graphitic Carbon Nitride Adorned with Ionic Liquid Containing Acidic Polymer: A Versatile, Non-Metallic Catalyst for Acid Catalyzed Reaction

Cited by 10 publications

References 77 publications

A novel composite of ionic liquid-containing polymer and metal–organic framework as an efficient catalyst for ultrasonic-assisted Knoevenagel condensation

A novel composite of ionic liquid-containing polymer and metal–organic framework as an efficient catalyst for ultrasonic-assisted Knoevenagel condensation

Organocatalysis with carbon nitrides

Pd on thermo-responsive composite of silica-coated carbon nanotube and 1-vinyl-3-butylimidazolium-based ionic liquid copolymers as an efficient catalyst for hydrogenation of nitro compounds

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