Combining nanotechnology and nanohybrid methods to improve the physical and chemical properties of CuS and boost its photocatalytic aptitude DOI Creative Commons

Javaria Naseem,

M. Abdel Rafea,

Magdi E. A. Zaki

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(18), P. 13940 - 13950

Published: Jan. 1, 2025

This study used a simple chemical method followed by ultrasonication to make copper sulfide (CuS) nanoparticles and their carbon nanotube-based nanohybrid (CuS-CNTs). To characterize the catalysts, different methods were employed. XRD was confirm that CNTs integrated with crystalline structure, FTIR detect functional groups, SEM-EDX further verified catalysts' shape make-up. The addition of enhanced optical, optoelectronic, electrical properties CuS preventing particle adhesion. UV-Vis, photoluminescence, current-voltage tests showed material could absorb more light, stop charges from combining, move efficiently. Carbon content, moisture absorption, thermal stability evaluated through TGA analysis. had great photocatalytic activity in visible breaking down all MB dye 90 min. In comparison, bare only mineralizes 65.9% 100 reaction rate constant (k) calculated be 0.024 min-1. nanohybrid's shown fact it lost 2.15% its efficiency over five cycles reusability tests. Additionally, this shows nanotechnology composite materials can improve semiconductor photocatalysis, which useful for cleaning up environment.

Language: Английский

Metal Sulfide Photocatalysts for Hydrogen Generation: A Review of Recent Advances DOI Open Access
Zamin Mamiyev, Narmina O. Balayeva

Catalysts, Journal Year: 2022, Volume and Issue: 12(11), P. 1316 - 1316

Published: Oct. 27, 2022

Metal-sulfide nanostructures have piqued the interest of researchers for decades due to their intriguing optoelectronic properties. Indeed, significant advances and improvements been made in various fundamental aspects cutting-edge applications, such as water splitting hydrogen production. Furthermore, rising demand low-dimensional materials lower material consumption improved performance quantum size effects has spurred research on semiconducting metal sulfides. Consequently, size-controllable with diverse morphologies fabricated studied potential applications. However, photocatalytic evolution rate is still limited mainly by fast recombination rate, poor solar energy utilization lack surface-active sites H2 reduction. This review will highlight particularly recent findings metal-sulfide-based photocatalysts reactions, considering swift development excellent this field. Following a brief overview properties, we explore state-of-the-art strategies enhancing generation efficiencies over pristine, heterostructured co-catalayzed metal-sulfide photocatalysts.

Language: Английский

Citations

97

Copper-decorated covalent organic framework as a heterogeneous photocatalyst for phosphorylation of terminal alkynes DOI
Yuxuan Chen, Mo Zhang, Shuai‐Zheng Zhang

et al.

Green Chemistry, Journal Year: 2022, Volume and Issue: 24(10), P. 4071 - 4081

Published: Jan. 1, 2022

A copper decorated covalent organic framework has been prepared and identified as an efficient heterogeneous photocatalyst for the phosphorylation of terminal alkynes.

Language: Английский

Citations

79

Contemporary Approaches for Amide Bond Formation DOI
Paola Acosta‐Guzmán, Andrea Ojeda‐Porras, Diego Gamba‐Sánchez

et al.

Advanced Synthesis & Catalysis, Journal Year: 2023, Volume and Issue: 365(24), P. 4359 - 4391

Published: Nov. 7, 2023

Abstract Amide bond construction has garnered significant interest in recent decades due to amides being one of the most prevalent functional groups among bioactive molecules. Out thirty‐seven new drugs approved by FDA 2022, eleven are small molecules containing at least amide bond. Additionally, there nineteen large as drugs, some which have peptide structures, and therefore, also bear bonds. In years, multiple teams embraced challenge developing more efficient methods for formation. This dedication led numerous publications appearing monthly prestigious journals, showcasing advancements this field. The primary goal review is present viable strategies constructing It crucial differentiate between formation synthesis; hence, focus on describing specific forming C(O)−N particular, concentrates developed within last six years. There a particular emphasis approaches that consider thought process when selecting starting materials groups. approach ensures coverage all common chemical transformations yield

Language: Английский

Citations

51

Captopril supported on magnetic graphene nitride, a sustainable and green catalyst for one-pot multicomponent synthesis of 2-amino-4H-chromene and 1,2,3,6-tetrahydropyrimidine DOI Creative Commons
Fatemeh Rezaei, Heshmatollah Alinezhad, Behrooz Maleki

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Nov. 23, 2023

Abstract Captopril (CAP) is a safe, cost-effective, and environmentally organic compound that can be used as an effective organo-catalyst. Functional groups of captopril make it capable to attach solid support acting promoters in transformations. In this work, was attached the surface magnetic graphene nitride by employing linker agent. The synthesized composite efficiently catalyzed two multicomponent reactions including synthesis 1,2,3,6-tetrahydropyrimidine 2-amino-4 H -chromene derivatives. A large library functional targeted products mild reaction conditions. More importantly, catalyst stable magnetically recycled reused for at least five runs without losing catalytic activity.

Language: Английский

Citations

43

Magnetic nanoparticle supported choline chloride-glucose (deep eutectic solvent) for the one-pot synthesis of 3,4-disubstituted isoxazol-5(4H)-ones DOI
Hengameh Atharifar, Ali Keivanloo, Behrooz Maleki

et al.

Research on Chemical Intermediates, Journal Year: 2023, Volume and Issue: 50(1), P. 281 - 296

Published: Oct. 9, 2023

Language: Английский

Citations

34

Selective synthesis of quinazolinones by using fluorescein catalyst under mild conditions DOI
Liang Jin,

Xuehua Chen,

Sheng Huang

et al.

Molecular Catalysis, Journal Year: 2023, Volume and Issue: 547, P. 113305 - 113305

Published: June 22, 2023

Language: Английский

Citations

31

A New Neodymium Complex on Boehmite Nanoparticles with 1,3‐Bis(pyridine‐3‐ylmethyl)thiourea as a Practical and Reusable Nanocatalyst for the Chemoselective Synthesis of Tetrazoles DOI
Yunes Abbasi Tyula, Parisa Moradi, Mohsen Nikoorazm

et al.

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(24)

Published: June 22, 2023

Abstract In first part, boehmite nanoparticles were synthesized using aqueous solutions of NaOH and Al(NO 3 ) ⋅ 9H 2 O. Then, it surface was modified by 3‐choloropropyltrimtoxysilane, further 1,3‐bis(pyridin‐3‐ylmethyl)thiourea anchored on the nanoparticles. final step, a neodymium complex stabilized its (Nd‐bis(PYT)@boehmite NPs). The obtained characterized TGA, BET, ICP, EDS, WDX, SEM, XRD techniques. second Nd‐bis(PYT)@boehmite NPs employed as an efficient, recoverable, organic‐inorganic hybrid nanocatalyst in homo‐selective synthesis tetrazole compounds. chemoselectivity studied [3+2] cycloaddition phthalonitrile sodium azide (NaN ). This catalyst is stable has heterogeneous nature therefore can be recovered used again for several consecutively run without any re‐activation

Language: Английский

Citations

30

Visible light-driven C–H arylation of heteroarenes with aryl diazonium salts in water catalyzed by a Z-scheme CuInS2/K-C3N4 heterojunction DOI
Qian-Hui Liu,

S. K. KANG,

Zhen‐Shui Cui

et al.

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(8), P. 4803 - 4810

Published: Jan. 1, 2024

Z-scheme CuInS 2 /K-C 3 N 4 heterojunction has been designed and confirmed as efficient heterogeneous photocatalyst for arylation of heteroarenes with aryl diazonium salts in water under visible light irradiation to give arylated high yields.

Language: Английский

Citations

18

Molybdenum disulfide-catalyzed direct α-hydroxymethylation of amides employing methanol as a sustainable C1 source under photoirradiation DOI

Ya‐Meng Wang,

Jun-Bo Wang, Jing Huang

et al.

Journal of Catalysis, Journal Year: 2023, Volume and Issue: 427, P. 115100 - 115100

Published: Aug. 22, 2023

Language: Английский

Citations

23

The bifunctional and reusable catalyst of cerium/L‐arginine on mesoporous KIT‐6 in the chemoselective oxidation of sulfides and homoselective synthesis of tetrahydrobenzo[b]pyrans DOI Open Access

Mitra Darabi,

Mohsen Nikoorazm, Bahman Tahmasbi

et al.

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(9)

Published: July 29, 2024

In this work, KIT‐6@Schiff‐base@Ce nanocatalyst was synthesized by immobilizing the Ce complex on KIT‐6 mesoporous silica framework modified with 3‐iodopropyltrimethoxysilane group. The surface area, total volume, and average diameter of pores, physical properties, functional groups, organic content, element combination obtained were identified using different techniques including BET, FT‐IR, XRD, WDX, SEM, EDX. investigated as a novel stable reusable catalyst excellent performance for selective synthesizing sulfoxide tetrahydrobenzo[b]pyrans. designed successfully oxidized large number sulfides hydrogen peroxide under solvent‐free conditions or in ethanol safe, green, available solvent good efficiency within short reaction times. Also, catalyzed tetrahydrobenzo[b]pyrans multicomponent condensation dimedone, aldehydes, malononitrile water/ethanol (1:1) ideal, green solvent.

Language: Английский

Citations

7