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Green Chemistry - Science topic

Green Methodologies in Organic Synthesis
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Publications related to Green Chemistry (10,000)
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Article
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One of the most successful ways for maximizing profit and lowering costs is to use mild steel over other corrosion-resistant alloys. As a result, mild steel is the most commonly used metallic material in many industries, and its corrosion resistance has received a lot of attention. The mild steel corrosion inhibition using compounds derived from pl...
Article
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A new methodology for the detection of ketamine, flunitrazepam, and diazepam in beverage samples by the dried sample spot method was developed. The method is characterized by very low LODs in all tested types of beverages (100 ng/mL for ketamine, 25 ng/mL for flunitrazepam and diazepam) and great precision at the concentration of 100 ng/mL for all...
Article
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Graphene, the 2D allotrope of carbon is promising industrial material with unique physicochemical properties. In the present study, graphene oxide (GO) was prepared by oxidation of graphite using the hummer’s method, while AgNPs were synthesized by green chemistry approach, using combination of two reductants gallic acid (GA) and tri-sodium citrate...
Poster
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The conference is aimed to disseminate the results of research from universities, research centers, and government boards and bring synergy between research and industry. In the spirit of green chemistry, chemical and industrial process for a sustainable and brighter future, the conference will provide the opportunity for more environmental and eff...
Article
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The nano NaY zeolite‐supported copper ‐ amine complex was prepared by post‐modification of the nano NaY zeolite with 3‐chloropropyl trimethoxysilane (CPTMS) and [2‐({3‐[(2‐aminoethyl)thio]propyl}thio)ethyl]amine followed by coordination with Cu (I) ion. Various techniques such as FT‐IR, XRD, DLS, TGA, DTA, SEM, BET, t‐plot, EDS, ICP, and elemental...
Article
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Reaction rate acceleration using green methods is an intriguing area of research for chemists. In this regard, water as a “green solvent” plays a crucial role in the acceleration of some organic transformations and reveals exclusive selectivity and reactivity in comparison with conventional organic solvents. In particular, multicomponent reactions...
Conference Paper
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Applications of Materials chemistry and electrochemistry to environmental problems. Including but not limited to green chemistry and electrochemical technologies in sludge, water and soil treatment Due to the rapid pace of urbanization and industrialization, environmental pollution has become one of the most serious global concerns. In order to tac...
Article
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Los inicios de la mecanoquímica pueden remontarse a la prehistoria teniendo registro de su uso en la era de la Grecia antigua presentando importantes avances a inicios del siglo XIX con los trabajos de Lea Carey (considerado el primer mecanoquímico) y de Michael Faraday. A pesar de que la mecanoquímica se conoce desde hace mucho tiempo, esta herram...
Article
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Prosthesis is an artificial device that replaces a missing body part, which may be lost because of trauma, disease, or a condition present at birth (congenital disorder). The main component of the prosthesis is the prosthetic socket which is the device that joins the residual limb (stump) to the prosthesis and is manufactured using thermoplastics o...
Article
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Modern society faces two major challenges: removing pollutants from water and producing energy from renewable sources. To do this, science proposes innovative, low-cost, and environmentally friendly methods. The heterogeneous photocatalysis process fits perfectly in this scenario. In fact, with photocatalysis, it is possible both to mineralize cont...
Article
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Among the different metal oxide nanoparticles, zinc oxide nanoparticles have gained significant importance due to their antibacterial properties against clinically pathogenic bacteria during the organal development. In the present study, biogenic zinc oxide nanoparticles were synthesized using seed extract of Citrus limon by a simple, cost-effectiv...
Article
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The pipeline system in the oil and gas industry is the main tool for transportation of crude and refined petroleum. Therefore, continuous exposure of the pipeline surfaces to sources of corrosion such as impurities that contains sulfur and chromate is totally unavoidable. Employment of commercial corrosion inhibitors is compounds used in low concen...
Article
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Due to their antibacterial effect, silver nanoparticles (AgNPs) are attracting more and more attention for various applications in biomedicine. The production of nanomaterials from organometallic precursors requires the use of a capping agent that acts as a stabilizer and provides colloidal stability while preventing agglomeration and excessive gro...
Article
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The aim of this work is to evaluate the catalytic activity of catalysts based on silver nanoparticles in the synthesis of isoxazolone-type heterocycles. The catalysts used in this study were prepared by the impregnation of 2 wt% Ag on commercial support oxides which are: Al2O3, CeO2 and MgO. The characteristics of these materials are obtained using...
Article
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Natural polymers have been investigated as part of the endeavors of green chemistry practice in the oil field. However, natural polymer studies are still preliminary. The current study examines okra’s (natural polymer) efficiency for polymer flooding, particularly in Kazakhstan. The evaluation targets the heavy oil trapped in carbonate reservoirs....
Article
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Silica nanoparticles were synthesized using the aqueous extract of orange peels by the green chemistry approach and simple method. The physicochemical properties such as optical and chemical banding of as-synthesized silica nanoparticles were analyzed with UV–visible spectroscopy and Fourier transform infrared spectroscopy. Scanning Electron Micros...
Article
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Green chemistry has become a fruitful approach for the synthesis of semiconductors and nanoparticles with various applications. Herein, we synthesized ZnO hexagonal nanoparticles (HNPs) by green precipitation method using fresh local Ziziphus leaf extract (Rhamnaceae) with a heating range of 60–80 in an alkaline medium. It was calcinated on a furna...
Article
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Cancer nanotherapeutics is an important field of research which utilizes nanomaterials as an approach to cancer therapy. Nano-mediated therapeutic delivery systems overcome the adverse side effects of traditional cancer treatment methods. Nanoparticles (NPs) are considered excellent tumor-targeting vehicles due to their compact and variable size, l...
Article
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In recent years, there has been a steady increase in the quantity of agricultural waste generation, due to the increased production of the food supply chain and the production of fuel for greenhouse gas (GHG) emission reduction initiatives, viz. processing, and consumption. As a result, there have been a number of environmental concerns, such as wa...
Article
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Quinazolinone, a bicyclic compound, comprises a pyrimidine ring fused at 4´ and 8´ positions with a benzene ring and constitutes a substantial class of nitrogen-containing heterocyclic compounds on account of their frequent existence in the key fragments of many natural alkaloids and pharmaceutically active components. Consequently, tremendous effo...
Preprint
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2-Amino-4 H -benzo[ h ]chromene-3-carbonitrile and 2-amino-5-oxo-4 H ,5 H -pyrano[3,2- c ]chromene-3-carbonitrile are two important pharmacophores with extensive applications in medicinal chemistry. The multicomponent Knoevenagel-Michael reaction is one of the most efficient strategies to construct these two scaffolds. Previous efforts have been ma...
Poster
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Nitrate and nitrite are two compounds present in the environment since they take part in the nitrogen cycle. In agriculture, nitrate is widely used as inorganic fertilizers. Due to this high anthropic impact and fossil fuel combustion, during the second half of the 20th century, nitrate accumulated in the environment drastically. The toxic effects...
Preprint
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A novel four-component reaction with pot, atom, step and economic process to synthesize diastereoselective spirooxindole-pyrrolothiazoles through sequential N, S-acetalation of aldehydes with cysteine and decarboxylative [3+2] cycloaddition with olefinic oxindoles. High synthetic efficiency, operational simplification and reaction process economy u...
Article
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The design and testing of green chemistry practicum by utilizing scrap metal in voltaic cells has been carried out with the R&D approach. R&D research used with the 4 Stages of Research Implementation. Based on the results of the study obtained an average value of practical guidance in terms of material, media and teacher ratings respectively 4.76,...
Article
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Nowadays, the sulfur-containing compounds are removed from motor fuels through the traditional hydrodesulfurization technology, which takes place under harsh reaction conditions (temperature of 350–450 °C and pressure of 30–60 atm) in the presence of catalysts based on alumina with impregnated cobalt and molybdenum. According to the principles of g...
Preprint
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Carbon-carbon (C-C) coupling reactions are widely used reactions in the production of fine chemicals, agrochemicals, and pharmaceuticals. In our recent contribution (Green Chemistry, 2019, 21, 5284-5290), cuprous oxide (Cu2O) nanospheres are shown to be efficient catalysts for C-C coupling reactions of terminal alkynes such as phenylacetylene. Spec...
Article
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Orange juice is one of the most popular juices sold in the world. Although very popular, most orange juice sold in the market is pasteurized, presenting off-flavor compounds and aromas different from the freshly squeezed juice. This study investigated how green chemistry, through the application of glow discharge plasma, can help improve the aroma...
Article
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Soybeans are mainly used for food and biodiesel production. It is estimated that soy crops worldwide will leave about 651 million metric tons of branches, leaves, pods, and roots on the ground post-harvesting in 2022/23. These by-products might serve as largely available and cheap source of high added-value metabolites, such as flavonoids, isoflavo...
Article
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The synthesis of aryl iodides from commercially available raw chemicals by simple, cheap and green strategies is of fundamental significance. Aryl iodides can undergo a series of homo-/cross-coupling reactions for the synthesis of important industrial chemicals and materials. Traditional methods require the electrophilic substitution on aromatic co...
Article
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Over the last years, extensive motivation has emerged towards the application of supercritical carbon dioxide (SCCO2) for particle engineering. SCCO2 has great potential for application as a green and eco-friendly technique to reach small crystalline particles with narrow particle size distribution. In this paper, an artificial intelligence (AI) me...
Article
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This study aimed to evaluate different parameters in the green process of organic Spirulina biomass (SB) C-phycocyanin (C-PC) extraction to understand the impact on weight and oral glucose tolerance of C-PC extract in Swiss mice fed with a high-fat diet (HFD). The proximate composition and antioxidant activity were analyzed in Spirulina by-products...
Article
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Designing a catalyst that combines activity, selectivity, and simple recovery as well as follows green chemistry instructions is of great importance. In the present study, Fe 3 O 4 @PectinImidazoleSO 3 H-Cu(II) was synthesized as an e cient and biopolymer-based magnetic catalyst for the oxidation of benzyl alcohols to aldehydes using tert-butyl hyd...
Presentation
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Materials Science and Engineering (MSE), including metallurgical and mining disciplines, stand at the crossroads of natural sciences and fascinating application of the scientific principles of understanding and manipulating relations among materials structure, processing, properties and performance. Shaping the history of humans (that is evident by...
Article
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Using biomolecule-rich plant extracts, the conversion of metal ions to metal oxide nanoparticles via abiogenic approach is highly intriguing, environmentally friendly, and quick. The inherent inclination of plant extracts function as capping agents in the insitu synthesis. In this study, biogenic zinc oxide nanoparticles (ZnO−NPs) were synthesized...
Chapter
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Interdisciplinary applications of metal nanoparticles causes the need to analyze their accumulation and the mechanisms of their action on living organisms, including vegetable plants. The aim of the experiment was to evaluate the effect of aqueous solutions of gels containing various concentrations of silver nanoparticles on the growth of cucumber...
Article
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An efficient and facile one-pot, five-component reaction for the synthesis of 2,6-diamino-1-alkyl-2-oxospiro[indoline-3,4′-thiopyran]-3,5-dicarbonitrile derivatives has been reported by a reaction between primary amines, carbon disulfide, malononitrile, and isatin derivatives. The major advantages of this procedure are high yields of products in re...
Article
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Green chemistry and nano-engineering are aimed at increasing products efficiencies in the chemical supply chain and reducing health and environmental hazards. This study stresses how principles and measurements of green chemistry can affect, from design through disposal, the complete life cycle of a chemical. Nanotechnology, as a rapidly developing...
Article
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Electroflotation (EF) is an electroanalytical technique applied for separating substances suspended in phase and is reported to be efficient for effluents and wastewater treatments. To date, there are no studies employing EF for the treatment of wastewater containing toxic organic compounds. In the present study, EF was tested as an electro-oxidati...
Article
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Green chemistry has been a growing multidisciplinary field in recent years showing great promise in biomedical applications, especially for cancer therapy. Chitosan (CS) is an abundant biopolymer derived from chitin and is present in insects and fungi. This polysaccharide has favorable characteristics, including biocompatibility, biodegradability,...
Article
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Microwave hydrodiffusion and gravity (MHG) is a technology created not only to extract essential oils but also highly effective in obtaining fruit extracts/juices rich in phenolic compounds. Therefore, this study addresses existing research on MHG to extract phenolic compounds from fruits, highlighting their main findings and the knowledge gaps tha...
Article
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In this study, a new heterogeneous magnetic catalytic system based on selenium-functionalized iron oxide nanoparticles is presented and suggested for facilitating amide/peptide bonds formation. The prepared nanocatalyst, entitled as “Fe 3 O 4 /SiO 2 -DSBA” (DSBA stands for 2,2′-diselanediylbis benzamide), has been precisely characterized for identi...
Article
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In recent years, the interest of the manufacturing industry in new perspectives aimed at sustainability has increased, driving the manufacture of paints to use alternatives that help to reduce the impacts generated by the emission of Volatile Organic Compounds (VOCs); these impacts are especially negative since they have environmental consequences...
Article
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A biosynthesis of PdNPs was loaded on activated Bentonite clay. The catalyst was synthesised by using universal solvent water, PdCl2 and Moringa oleifera leaves extract. The plant leaves extract acts both as a reducing agent and also as a capping agent. The synthesised PdNPs loaded on activated Bentonite clay were characterised by using FTIR, HR-TE...
Article
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Pd(OAc)2/XPhos–SO3Na in a mixture of poly(ethylene glycol) (PEG-400) and water is shown to be a highly efficient catalyst for the cyanation of aryl chlorides with potassium ferrocyanide. The reaction proceeded smoothly at 100 or 120 ºC with K2CO3 or KOAc as base, delivering a variety of aromatic nitriles in good to excellent yields. The isolation o...
Article
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Synthetic aromatic compounds consisting of various functional groups are known as dyes. These colored compounds are often discharged in effluents, and they are very dangerous to aquatic life. Basically, the dye industry started by using natural plant and insect sources, and then suddenly turned into artificial manufacturing. Natural equilibrium of...
Article
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The 12 principles of green chemistry were stated to pursue good practices and techniques that minimize the use of hazardous substances in the production and application of chemicals. To minimize the risks and the pollution generated using chemicals, new methodologies must be developed that avoid the application of dangerous products or its amount....
Article
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In the process of the development of green chemistry, non-noble metal catalysts have become one of the research hotspots. The abundant aluminum has entered the research scope of chemists. Four organoaluminum derived from halogen-substituted Schiff bases were prepared: (2-(((2,6-difluorophenyl)imino)methyl)phenoxy)dimethylaluminum (C1), (2-(((3-chlo...
Book
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Textile Dyes and Pigments: A Green Chemistry Approach is a response to the many industries currently using conventional textile dyeing and pigmentation methods who are looking for sustainable green chemical options. It presents in 24 chapters the best possible latest textile dyes and pigments and discusses their importance in the field of green che...
Article
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Reducing the use of solvents is an important aim of green chemistry. Using micelles self-assembled from amphiphilic molecules dispersed in water (considered a green solvent) has facilitated reactions of organic compounds. When performing reactions in micelles, the hydrophobic effect can considerably accelerate apparent reaction rates, as well as en...
Article
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In this work, removal of chromium (VI) using alkali-treated composted peels of lemon (Citrus limonum), mango (Mangifera indica), water melon (Citrullus lanatus), and melon (Cucumis melo) has been studied in batch mode. Physico-chemical characteristics of each sorbent material were determined together with their subsequent characterization by scanni...
Article
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Nowadays, the environmentally friendly approach to everyday life routines including body supplementation with pharma-, nutraceuticals and dietary supplements gains popularity. This trend is implemented in pharmaceutical as well as cosmetic and antiageing industries by adopting a newly developed green chemistry approach. Following this trend, a new...
Article
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An easy and environmentally friendly method has been developed for locust bean gum extraction from carob seeds to be used as natural support of palladium. The reaction was carried out in water under ultrasonic irradiation for a short period of time (30 min). This catalyst was characterized by different analytical techniques such as UV‐vis, FTIR, TG...
Article
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Isatin and related derivatives are synthetically versatile substrates. These compounds can form a wide range of heterocyclic structures. These characteristics make isatin and its derivatives attractive to many research groups. There are lots of review articles about these compounds, but none of them focus on green solvents. This review, with the po...
Article
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The novel pyridinium chloride-functionalized MnCoFe2O4-SO3H nanoparticles, (MnCoFe2O4@Niacin-SO3H)+Cl−, were synthesized by coating the sulfonic group on the surface of MnCoFe2O4@Niacin. The activity of these nanoparticles was studied for the synthesis of tetrahydrodipyrazolopyridines and pyranopyrazole derivatives via the multi-component reactions...
Article
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The study aimed to design and synthesize novel 2-aminopyrimidine Schiff bases through a green chemistry approach. The compounds 2(A-L) were synthesized through a single step reaction by reacting 2-aminopyrimidines 1(A-L) with suitably substituted aromatic aldehydes. The synthesized compounds were characterized by physiochemical methods and spectral...
Article
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Green chemistry has paved an ‘avant-garde avenue’ in the production and fabrication of eco-friendly stable nanoparticles employing the utilization of biological agents. In the present study we present the first report on the potential of the marine bacterium Lysinibacillus odysseyi PBCW2 for the extracellular production of gold nanoparticles (AuNPs...
Article
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ConspectusPolymer sustainability is synonymous with "bioderived polymers" and the zeitgeist of "using renewable feedstocks". However, this sentiment does not adequately encompass the requirements of sustainability in polymers. In addition to recycling considerations and mechanical performance, following green chemistry principles also needs to be m...
Article
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The acylation of amines has always attracted a deep interest as a synthetic route due to its high versatility in organic chemistry and biochemical processes. The purpose of this article is to present a mechanochemical acylation procedure based on the use of acyl-saccharin derivatives, namely N-formylsaccharin, N-acetylsaccharin, and N-propionylsacc...
Article
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In recent years, a growing number of publications have emerged discussing how to integrate education for sustainable development (ESD) and systems thinking into science education in general, and chemistry education in particular. However, when it comes to more specific fields of chemistry education, most studies focus almost exclusively on higher e...