Ecofriendly articles

In this study, a simple, straightforward, and highly efficient microwave-assisted three-component synthesis of novel 2-amino-4H-benzo[g]chromene-5,10-dione-3-carbonitrile derivatives bearing fluorine atoms has been developed using 1,4-diazabicyclo[2.2.2]octane (DABCO) as an ecofriendly catalyst, and acetonitrile as a solvent.

11p viamancio 04-06-2024 1 0   Download

"Study of supply chain strategy for achieving sustainable transport near National Park, Jerantut, Pahang, Malaysia" suggested that public transport facilities must be upgraded with better roads and better bus stops. Payment methods and tickets’ price is merely not a big issue for National Park. For promoting a sustainability issue, the National Park required more enhancements, not just the bus, the roads around also must be facilitated with more ecofriendly infrastructures to promote walking and cycling.

15p longtimenosee07 29-03-2024 5 1   Download

A facile hydrothermal-aided process is demonstrated to prepare an analcime 3-dimensional (3D) network using recycled aluminum foil as an aluminum source without using an organic template. The prepared material was characterized by different techniques. An electrode/electrolyte interface with a 3D network structure allows for better contact and improves the kinetics of the charge transfer.

8p viberbers 09-08-2023 7 3   Download

Graphene Quantum Dots (GQDs) were successfully synthesized by a green and ecofriendly synthetic method using abundant and naturally available raw materials from rice flour. To the best of our knowledge, there have been no published reports concerning the comparison of the ability to synthesize GQDs and the properties of GQDs produced by these two methods.

13p viannee 02-08-2023 6 3   Download

Polysaccharides such as xanthan, locust bean gum or chitosan are easily crosslinked and purified using citric acid in an ecofriendly process. In order to achieve an improved sorption capability towards hydrophobic solutes, β-cyclodextrin, a cyclic oligosaccharide, and lignin, a natural aromatic polymer, are incorporated in the same process.

10p viginny 30-12-2022 9 4   Download

The corrosion inhibition of mild steel alloys is of tremendous technological importance due to their increased industrial applications. Potentiodynamic polarization and electrochemical impedance spectroscopy techniques were used to establish the effect of different concentrations of HCl on the corrosion behavior of mild steel. A study was conducted on the inhibition of dissolution for a mild steel alloy in the most corrosive concentration of HCl (5 M) by adding different concentrations of aqueous extract of Hibiscus sabdariffa plant (named karkade or rosselle) as an ecofriendly inhibitor.

11p langthannam 29-12-2021 13 0   Download

The latter compounds react also by grinding method with nitrogen nucleophiles such as hydrazine hydrate, phenylhydrazine, and thiosemicarbazide to afford the corresponding pyrazol-3-yl pyrazolines. A series of 6-pyrazolylpyrimidine2-thione derivatives were prepared by reaction of the above chalcones with thiourea by grinding method in the presence of a catalytic amount of sodium hydroxide at room temperature. In addition, 7-pyrazolylpyridopyrimidine-3-thione was prepared by reaction of chalcone with 6-aminothiouracil.

15p langthannam 29-12-2021 6 0   Download

An efficient, convenient, and environmentally benign procedure for the synthesis of novel benzo[a]chromeno[2,3-c]phenazine derivatives has been developed by domino four-component condensation reaction between 2-hydroxynaphthalene-1,4-dione, o−phenylenediamine, aromatic aldehydes, and naphthols or phenol in the presence of a catalytic amount of DABCO as an expedient, ecofriendly, and reusable base catalyst under microwave irradiation in EtOH/H2O (1:1).

10p tudichquannguyet 29-11-2021 13 1   Download

A one-pot, environmentally friendly, and efficient protocol for the synthesis of novel polyfunctionalized benzo[a]pyrimido[5’,4’:5,6]pyrido[2,3-c ]phenazine derivatives has been reported by a one-pot, four-component sequential reaction between 2-hydroxynaphthalene-1,4-dione, benzene-1,2-diamines, benzaldehydes, and 6-amino-1,3-dimethyluracil in the presence of p-TSA as a nontoxic, inexpensive, ecofriendly, and efficacious solid acid catalyst. Two C-C bonds, two C=N bonds, and one C-N bond, as well as two new rings, were formed in this reaction.

10p tudichquannguyet 29-11-2021 19 1   Download

In the current protocol, the arene diazonium saccharin derivatives were initially produced from various substituted aromatic amines; subsequently, these intermediates were treated with a greener organic iodide for the preparation of the aryl iodide. We tried to choose low-cost, commercially available, biodegradable, recoverable, ecofriendly, and safe reagents and solvents. The arene diazonium saccharin intermediates could be stored in the liquid phase into a refrigerator for a long time with no significant loss activity.

15p tudichquannguyet 29-11-2021 7 0   Download

This work introduces a new additive named 4,4’-trimethylenedipiperidine for the practical and ecofriendly preparation of ethyl 5-amino-7-(4-phenyl)-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate derivatives. This chemical is commercially available and easy to handle. It also possesses a low melting point and a broad liquid range temperature, high thermal stability, and good solubility in water. Based on green chemistry principles, the reaction was performed in a) a mixture of green solvents i.e.

12p tudichquannguyet 29-11-2021 14 1   Download

Pigments are the chemical substances that absorb the light of visible region. Pigments are compounds that are widely used in industries. Non-toxic nature of pigment produced by a number of microorganisms make them ecofriendly for utilization in dye, foodstuff, pharmaceutical, cosmetics and other industrial purpose. Industrial production of natural food colorants by microbial fermentation has several advantages such as cheaper production, easier extraction, higher yields through strain improvements, no lack of raw materials and season independent.

15p chauchaungayxua12 29-07-2021 13 1   Download

The various organic acids have screened; like gallic acid, 4-hydroxy benzoic acid, 4-amino benzoic acid, phenylacetic acid, chloroacetic acid, sulfosalicylic acid, sulfanilic acid, chloro benzoic acid, phthalic acid, salicylic acid, cinnamic acid, hippuric acid, 1- naphthyl acetic acid, o-amino benzoic acid, p-TSA, succinic acid, malic acid, and among them sulfanilic acid is a suitable catalyst. The reaction condition was optimized with respect to the solvent, the amount of catalyst as well as the variation of the ketone, aldehyde, and amine substrates.

13p cothumenhmong11 06-05-2021 15 2   Download

Common scab caused by Streptomyces scabies (Thaxter) Waksman & Henrici is an important disease worldwide, and can cause significant reduction in the economic value of potato. The management of the disease can be done through conventional methods, biological chemical and cultivation of resistant variety. However, resistance against pathogen is not a permanent solution and fungicidal is not ecofriendly and economical. But new search, induce resistance has taken great attention for plant disease management in near future.

9p trinhthamhodang11 27-04-2021 8 1   Download

The present investigation was carried out to study “ecofriendly weed management through non-chemical approaches in high density planting system of cotton.

11p caygaocaolon11 21-04-2021 11 2   Download

Cereals and legumes are largely grown under harsh rainfed conditions in India, which is further complicated by climate change and climate variability. Tropical drylands are experiencing deficit rainfall over the years. Due to this, agricultural production is affected in arid and semi arid regions. There is an urgent need to find low cost, ecofriendly, sustainable solutions to manage crop productivity under rainfed situations to help resource poor small and marginal farmers in particular. Plant microbiome interactions offer plants to tide over adverse conditions viz.

16p chauchaungayxua11 23-03-2021 19 1   Download

Field experiments were conducted in farmers holding during 2017-19 in view to develop ecofriendly strategies for the management of white grub in sugarcane crop. Various bio inoculants with required dose per hectare were prepared and multiplied in well decomposed farm yard manure of 50 kgs and mixed with 2500 kgs of decomposed FYM at the time of application for easy handling and applied near root zone during earthing up (during May/June).

6p chauchaungayxua11 23-03-2021 9 2   Download

Nanotechnology is mainly concerned with synthesis of nanoparticles of variable sizes, shapes, chemical compositions and controlled dispersity with their potential use for human benefits. The subject nanotechnology deals with manufacturing, study and manipulation of matter at nano scale in the size range of 1-100 nm which may be called as nanoparticles. Development of green nanotechnology is creating interest of researchers towards ecofriendly biosynthesis of nanoparticles.

10p cothumenhmong9 18-01-2021 11 2   Download

The major nutrients nitrogen, phosphorus and potash play an important role in nutrition of garlic plants in relation to growth, yield and quality of bulb. The organic manure is an ecofriendly, economically viable and ecologically sound that also played a significant role in soil biology, chemistry and physics.

8p cothumenhmong9 04-01-2021 9 2   Download

In the present work, ZnO:Dy3 nanophosphors were synthesized by a simple, cost effective and ecofriendly route using the aqueous extract of Azadirachta Indica leaves. The prepared ZnO:Dy3 nanophosphors were characterized using X-ray diffraction (XRD), Fourier Transformed Infra-Red (FTIR), Raman, UV-VIS diffuse reflectance (UVDR) spectroscopy and Photoluminescence (PL), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray spectroscopy (EDX).

8p larachdumlanat129 14-01-2021 9 1   Download