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Johari S, Johan MR, Khaligh NG. Organocatalytic Synthesis of (Hetero)arylidene Malononitriles Using a More Sustainable, Greener, and Scalable Strategy. Curr Org Synth 2024; 21:704-716. [PMID: 38231061 DOI: 10.2174/0115701794268766231108110816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/22/2023] [Accepted: 10/03/2023] [Indexed: 01/18/2024]
Abstract
AIM AND OBJECTIVE The establishment of a green and sustainable Knoevenagel condensation reaction in organic chemistry is still crucial. This work aimed to provide a newly developed metal-free and halogen-free catalytic methodology for the synthesis of CS and (hetero-) arylidene malononitriles in the laboratory and industrial scale. The Knoevenagel condensation reaction of various carbonyl groups with malononitrile was investigated in ethanol, an ecofriendly medium, in the presence of seven nitrogen-based organocatalysts. MATERIALS AND METHODS A comparative study was conducted using two as-obtained and four commercially available nitrogen-based organocatalysts in Knoevenagel condensation reactions. The synthesis of CS gas (2-chlorobenzylidene malononitrile) using a closed catalytic system was optimized based on their efficiency and greener approach. RESULTS The conversion of 100% and excellent yields were obtained in a short time. The products could be crystallized directly from the reaction mixture. After separating pure products, the residue solution was employed directly in the next run without any concentration, activation, purification, or separation. Furthermore, the synthesis of 2-chlorobenzylidenemahmonitrile (CS) was carried out on a large scale using imidazole as a selected nitrogen-based catalyst, afforded crystalline products with 95 ± 2% yield in five consecutive runs. CONCLUSION Energy efficiency, cost saving, greener conditions, using only 5 mol% of organocatalyst, high recyclability of catalyst, prevention of waste, recycling extractant by a rotary evaporator for non-crystallized products, demonstrated the potential commercial production of CS using imidazole in ethanol as an efficient and highly recyclable catalytic system.
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Affiliation(s)
- Suzaimi Johari
- Nanotechnology and Catalysis Research Center, Institute for Advanced Studies (IAS), University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Mohd Rafie Johan
- Nanotechnology and Catalysis Research Center, Institute for Advanced Studies (IAS), University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Nader Ghaffari Khaligh
- Nanotechnology and Catalysis Research Center, Institute for Advanced Studies (IAS), University of Malaya, 50603, Kuala Lumpur, Malaysia
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Tran VA, Doan VD, Le VT, Nguyen TQ, Don TN, Vien V, Luan NT, Vo GNL. Metal–Organic Frameworks-Derived Material for Electrochemical Biosensors: Recent Applications and Prospects. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Affiliation(s)
- Vy Anh Tran
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
| | - Van Dat Doan
- The Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, 700000, Vietnam
| | - Van Thuan Le
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, 550000, Vietnam
- Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, 550000, Vietnam
| | - Thanh-Quang Nguyen
- Department of External Relations and Project Development, Institute of Applied Science and Technology (IAST), Van Lang University, Ho Chi Minh City, 700000, Vietnam
| | - Ta Ngoc Don
- Ministry of Education and Training, Ha Noi City, 100000, Vietnam
| | - Vo Vien
- Applied Research Institute for Science and Technology, Quy Nhon University, Quy Nhon, 820000, Vietnam
| | - Nguyen Thanh Luan
- Department of Science and Technology, HUTECH University, Ho Chi Minh City 700000, Vietnam
| | - Giang N. L. Vo
- Faculty of Pharmacy, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, 700000, Vietnam
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Gadore V, Mishra SR, Ahmaruzzaman M. Green and environmentally sustainable fabrication of SnS 2 quantum dots/chitosan nanocomposite for enhanced photocatalytic performance: Effect of process variables, and water matrices. JOURNAL OF HAZARDOUS MATERIALS 2023; 444:130301. [PMID: 36403450 DOI: 10.1016/j.jhazmat.2022.130301] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 10/17/2022] [Accepted: 10/30/2022] [Indexed: 05/27/2023]
Abstract
Concerns over the availability of clean water and the quality of treated wastewater are significant problems that call for an appropriate solution to improve the water quality. The present work emphasized the synthesis of novel SnS2 quantum dots (QDs) deposited on chitosan via a facile green precipitation method involving neem (Azadirachta indica) leaf extract and investigating its photocatalytic performance for the degradation of Crystal violet (CV) dye under varying reaction parameters, other organic and inorganic salts and water matrices. The crystal structure, surface morphology, and elemental composition of the prepared SnS2 (QDs)/Ch composite were evaluated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) and energy dispersive X-ray analysis (EDAX) techniques. The average size of SnS2/Chitosan nanoparticles was calculated to be 8.8 nm using XRD, with the average diameter of SnS2 QDs to be 3.3 nm from TEM. UV-visible spectroscopy was used to investigate its optical properties. The direct band gap of SnS2/Chitosan estimated from Tauc's plot came to be 2.5 eV. The prepared novel SnS2/Ch composite showed outstanding photocatalytic activity for the degradation of CV through the Advanced Oxidation Process (AOP). The fabricated photocatalyst caused 98.60 ± 1.34 % degradation of CV within a short period of 70 min under optimum conditions. The photodegradation reaction followed pseudo-first-order rate kinetics with a rate constant of 0.0815 min-1. Furthermore, the photocatalyst showed high stability and was reusable for up to four cycles. The present work fulfils the aim of designing a novel, green, and efficient visible light-active nano-photocatalyst.
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Affiliation(s)
- Vishal Gadore
- Department of Chemistry, National Institute of Technology Silchar, 788010 Assam, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology Silchar, 788010 Assam, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology Silchar, 788010 Assam, India.
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Tran VA, Tran NT, Doan VD, Nguyen TQ, Thi HHP, Vo GNL. Application Prospects of MXenes Materials Modifications for Sensors. MICROMACHINES 2023; 14:247. [PMID: 36837947 PMCID: PMC9959414 DOI: 10.3390/mi14020247] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/14/2023] [Accepted: 01/14/2023] [Indexed: 06/01/2023]
Abstract
The first two-dimensional (2D) substance sparked a boom in research since this type of material showed potential promise for applications in field sensors. A class of 2D transition metal nitrides, carbides, and carbonitrides are referred to as MXenes. Following the 2011 synthesis of Ti3C2 from Ti3AlC2, much research has been published. Since these materials have several advantages over conventional 2D materials, they have been extensively researched, synthesized, and studied by many research organizations. To give readers a general understanding of these well-liked materials, this review examines the structures of MXenes, discusses various synthesis procedures, and analyzes physicochemistry properties, particularly optical, electronic, structural, and mechanical properties. The focus of this review is the analysis of modern advancements in the development of MXene-based sensors, including electrochemical sensors, gas sensors, biosensors, optical sensors, and wearable sensors. Finally, the opportunities and challenges for further study on the creation of MXenes-based sensors are discussed.
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Affiliation(s)
- Vy Anh Tran
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - Nguyen Tien Tran
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam
| | - Van Dat Doan
- The Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam
| | - Thanh-Quang Nguyen
- Department of External Relations and Project Development, Institute of Applied Science and Technology (IAST), Van Lang University, Ho Chi Minh City 700000, Vietnam
| | - Hai Ha Pham Thi
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh Street, Ward 13, District 4, Ho Chi Minh City 700000, Vietnam
| | - Giang N. L. Vo
- Faculty of Pharmacy, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam
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Liang R, Yuan H, Wang S, Chen F, Si R, Wu L, Yan G. Formation of CdS quantum dots on zeolitic imidazolate framework-67 dodecahedrons as S-scheme heterojunctions to enhance charge separation and antibacterial activity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Elaouni A, El Ouardi M, Zbair M, BaQais A, Saadi M, Ait Ahsaine H. ZIF-8 metal organic framework materials as a superb platform for the removal and photocatalytic degradation of organic pollutants: a review. RSC Adv 2022; 12:31801-31817. [PMID: 36380941 PMCID: PMC9639128 DOI: 10.1039/d2ra05717d] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 10/24/2022] [Indexed: 07/25/2023] Open
Abstract
Metal organic frameworks (MOFs) are attracting significant attention for applications including adsorption, chemical sensing, gas separation, photocatalysis, electrocatalysis and catalysis. In particular, zeolitic imidazolate framework 8 (ZIF-8), which is composed of zinc ions and imidazolate ligands, have been applied in different areas of catalysis due to its outstanding structural and textural properties. It possesses a highly porous structure and chemical and thermal stability under varying reaction conditions. When used alone in the reaction medium, the ZIF-8 particles tend to agglomerate, which inhibits their removal efficiency and selectivity. This results in their mediocre reusability and separation from aqueous conditions. Thus, to overcome these drawbacks, several well-designed ZIF-8 structures have emerged by forming composites and heterostructures and doping. This review focuses on the recent advances on the use of ZIF-8 structures (doping, composites, heterostructures, etc.) in the removal and photodegradation of persistent organic pollutants. We focus on the adsorption and photocatalysis of three main organic pollutants (methylene blue, rhodamine B, and malachite green). Finally, the key challenges, prospects and future directions are outlined to give insights into game-changing breakthroughs in this area.
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Affiliation(s)
- Aicha Elaouni
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, Mohammed V University in Rabat Morocco
| | - M El Ouardi
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, Mohammed V University in Rabat Morocco
- Université de Toulon, AMU, CNRS, IM2NP CS 60584, Toulon Cedex 9 F-83041 France
| | - M Zbair
- Université de Haute-Alsace, CNRS IS2M UMR 7361 F-68100 Mulhouse France
- Université de Strasbourg 67081 Strasbourg France
| | - A BaQais
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University P.O. Box 84428 Riyadh 11671 Saudi Arabia
| | - M Saadi
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, Mohammed V University in Rabat Morocco
| | - H Ait Ahsaine
- Laboratoire de Chimie Appliquée des Matériaux, Centre des Sciences des Matériaux, Faculty of Sciences, Mohammed V University in Rabat Morocco
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Chitin and Silk Fibroin Biopolymers Modified by Oxone: Efficient Heterogeneous Catalysts for Knoevenagel Reaction. Catalysts 2022. [DOI: 10.3390/catal12080904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
New materials from silk fibroin (FS-Ox) and chitin (CT-Ox) functionalized with Oxone® salt were developed for application in the synthesis of Knoevenagel adducts. The experiments were performed using benzaldehyde derivatives, malononitrile, and a mixture of water and ethanol as green solvents. The efficiency of conventional and microwave irradiation as heating sources for this reaction was also investigated. When the reactions were performed for 60 min under optimized conditions with conventional heating, twelve Knoevenagel adducts 2a–l were obtained, with good yields for both catalysts (CT-Ox 60–98% and FS-Ox 71–98%). When microwave irradiation was used, the reaction periods were reduced twelvefold, with the same Knoevenagel adducts with good CT-Ox (39–99%) and FS-Ox (35–99%) yields obtained in most cases. The reuse of these materials as catalysts in successive reactions was also evaluated, and CT-Ox FS-Ox were successfully used for 4 and 2 cycles, respectively. The results presented prove the efficiency of the CT-OxFS-Ox catalyst as a promising low-cost and reusable material with suitable catalytic properties to be applied in the aldol condensation reaction in a sustainable way.
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Photodegradation of Pharmaceutical Pollutants: New Photocatalytic Systems Based on 3D Printed Scaffold-Supported Ag/TiO2 Nanocomposite. Catalysts 2022. [DOI: 10.3390/catal12060580] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Due to the release of active pharmaceutical compounds in wastewater and their persistence in the environment, dangerous consequences can develop in the aquatic and terrestrial organisms. Chitosan/Ag/TiO2 3D printed scaffolds, at different Ag nanoparticle concentrations (10, 100, 1000 ppm) are investigated here as promising materials for photocatalytic degradation under the UV–Vis irradiation of pharmaceutical compounds in wastewater. As target drugs, amoxicillin, paracetamol and their 1:1 mix were selected. Ag nanoparticles increase the photocatalytic efficiency of the system based on titanium dioxide embedded in the chitosan scaffold: in the presence of Chitosan/Ag100/TiO2, the selected pharmaceuticals (PhCs), monitored by UV–Vis spectroscopy, are completely removed in about 2 h. The photodegradation products of the PhCs were identified by Liquid Chromatography–Mass Spectroscopy and assessed for their toxicological impact on six different bacterial strains: no antibacterial activity was found towards the tested strains. This new system based on Ag/TiO2 supported on 3D chitosan scaffolds may represent an effective strategy to reduce wastewater pollution by emerging contaminants.
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Tran VA, Vo GV, Tan MA, Park JS, An SSA, Lee SW. Dual Stimuli-Responsive Multifunctional Silicon Nanocarriers for Specifically Targeting Mitochondria in Human Cancer Cells. Pharmaceutics 2022; 14:pharmaceutics14040858. [PMID: 35456692 PMCID: PMC9028052 DOI: 10.3390/pharmaceutics14040858] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 03/30/2022] [Accepted: 04/11/2022] [Indexed: 01/16/2023] Open
Abstract
Specific targeting, selective stimuli-responsiveness, and controlled release of anticancer agents are requested for high therapeutic efficiency with a minimal adverse effect. Herein, we report the sophisticated synthesis and functionalization of fluorescent mesoporous silicon (FMPSi) nanoparticles decorated with graphene oxide (GO) nanosheets. GO-wrapped FMPSi (FMPSi@GO) was loaded with a cisplatin (Cis) anticancer agent, and Cis-loaded FMPSi@GO (FMPSi-Cis@GO) exhibited the dual stimuli (pH and NIR)-responsiveness of controlled drug release, i.e., the drug release rate was distinctly enhanced at acidic pH 5.5 than at neutral pH 7.0 and further enhanced under NIR irradiation at acidic pH condition. Notably, dequalinium-conjugated FMPSi-Cis@GO (FMPSi-Cis@GO@DQA) demonstrated an excellent specificity for mitochondrial targeting in cancer cells without noticeable toxicity to normal human cells. Our novel silicon nanocarriers demonstrated not only stimuli (pH and NIR)-responsive controlled drug release, but also selective accumulation in the mitochondria of cancer cells and destroying them.
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Affiliation(s)
- Vy Anh Tran
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Sujung-gu, Seongnam-si 461-701, Gyeonggi-do, Korea;
| | - Giau Van Vo
- Department of Biomedical Engineering, School of Medicine, Vietnam National University Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Vietnam;
- Vietnam National University Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Vietnam
| | - Mario A. Tan
- College of Science and Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila 1015, Philippines;
| | - Joon-Seo Park
- Department of Chemistry, Eastern University, 1300 Eagle Road, St. Davids, PA 19087, USA;
| | - Seong Soo A. An
- Department of Bionano Technology, Bionano Research Institute, Gachon University, 1342 Seongnam-daero, Sujung-gu, Seongnam-si 461-701, Gyeonggi-do, Korea
- Correspondence: (S.S.A.A.); (S.-W.L.); Tel.: +82-31-750-8755 (S.S.A.A.); +82-31-750-5360 (S.-W.L.)
| | - Sang-Wha Lee
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Sujung-gu, Seongnam-si 461-701, Gyeonggi-do, Korea;
- Correspondence: (S.S.A.A.); (S.-W.L.); Tel.: +82-31-750-8755 (S.S.A.A.); +82-31-750-5360 (S.-W.L.)
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