Green synthesis

Zero valent iron (ZVI) nanoparticles have been considered as effective materials for environmental remediation because of their strong reducing ability, high reaction activity, and excellent absorption properties. In this study, we synthesized iron nanoparticles using an environmentally friendly method in order to treat Cr(VI) ions in an aqueous medium.

8p vibecca 01-10-2024 1 1   Download

In this study, nHAp/CS@β–CD–E nanocomposite has been synthesized by incorporating of chitosan (CS), β-cyclodextrin (β-CD), and Ficus pumila (L.) leaf extract with nano-hydroxyapatite (nHAp) via coprecipitation method. Meanwhile, the nHAp obtained from seashells as the starting material sources.

6p vikwong 29-09-2024 5 1   Download

In the present work, a green synthesis of cuprous oxide nanoparticles was demonstrated using the freshly prepared aqueous extract of the aloe vera plant and the cupper oxide nanoparticles were characterized by the analytical techniques such as UV-Vis, FT-IR, XRD, and EDX.

5p vikwong 29-09-2024 2 1   Download

The main contribution of this work was the synthesis of MNs in an economical and environmental friendly way, achieving size-controlled MNs at mild conditions. A possible mechanism of MNs synthesis was also presented.

11p vikwong 29-09-2024 4 1   Download

The green production of hydrogen peroxide has attracted considerable attention owing to the urge for an alternative production method to the current production. Electrocatalytic reduction via the 2e- pathway has emerged as the brightest approach.

6p vikwong 29-09-2024 3 2   Download

This study aims to investigate the effectiveness of the green microwave technique in producing 1T/2H-MoS2 nanomaterials using polyol solvents. The paper presents a thorough analysis of the structural and property characteristics of the synthesized materials and elucidates the underlying chemical mechanism that governs the formation of hybrid-phase nanostructures. Additionally, the role of polyol solvents in the practical synthesis of nano MoS2 under microwave heating is evaluated and explained.

15p xuanphongdacy06 18-09-2024 1 1   Download

In this study, Zinc oxide (ZnO) nanoparticles with a size of about 50 - 70 nm were green-synthesized using tea leaves and ZnO/Polypyrrole (ZnO/Ppy) nanocomposites were obtained by ultrasonic-assisted chemical polymerization method using pyrrole monomer and the nanoparticles. The characterization of the materials is conducted using several analytical techniques, including Field Emission Scanning Electron Microscopy (FESEM) and X-Ray Diffraction (XRD) and Ultraviolet visible spectrum (UV-Vis).

11p xuanphongdacy06 18-09-2024 2 1   Download

This article focuses on the social judgment theory and its application to examine consumer reactions to businesses. For businesses that apply green marketing strategies in their operations, consumer judgment has different characteristics, which moderates and alters the intention and behaviour of consuming green products. This study applied the documentary method, combining synthesis and evaluation to reveal that consumers often have psychological judgments about the reality of businesses that are implementing a sustainable development strategy.

10p toduongg 24-08-2024 3 1   Download

In this article, the authors mainly use research methods such as: documents synthesizing, analytics and synthesis, comparative method, logical - historical methods to approach the documents of the Party and the State, books, seminars, websites,... which are related to green economy.

8p toduongg 24-08-2024 6 2   Download

The present study focuses on the preparation of silver/copper bimetallic hybrid nanoparticles by green method from precursor solutions of silver nitrate & copper nitrate and the locally available citrus fruit (lemon) peel extract which behaves as the stabilizing and reducing agent. Initially, the formation of hybrid nanoparticles was noticed in the reaction mixture by colour change.

7p dianmotminh02 03-05-2024 7 2   Download

natural fiber for the construction of hybrid bio-composites. In the current research project, a thorough analysis of the use of soy-PF resin for the creation of composites reinforced with jute was conducted. A novel and practical cutlery material was created after the mechanical properties were evaluated and optimized. In order to study the value addition of these newly proposed biocomposite materials as an ecological alternative in terms of natural resources versus synthetic resources, variables such as hardness, cytotoxicity, and degrading qualities of composites were also explored.

9p dianmotminh02 03-05-2024 7 3   Download

The characteristics of synthesized nanoparticles depend on the source of the plant extracts because of different combinations and concentrations of organic reducing agents present in the extracts (Mukunthan and Balaji, 2012).

178p spiritedaway36 26-11-2021 11 2   Download

Green synthesis method is being increasingly used in the development of safe, stable, and eco-friendly nanostructures with biological resources. In this study, extracellular and intracellular synthesis of gold nanoparticles (AuNPs) was carried out using green algae Chlorella sorokiniana Shihira & R.W. Fresh algae were isolated and identified from Musaözü Pond located in the province of Eskişehir and then extraction process were performed.

18p thiencuuchu 27-11-2021 11 3   Download

This method is associated with some attractive characteristics such as good selectivity, very short reaction time, high yield of products, cleaner reaction profile,no harmful by-product, cheap and environmental benign catalyst, simple experimental andwork-up procedure. This procedure does not require solvent separation and purification stepssuch as column chromatography.

10p tocectocec 25-05-2020 14 4   Download

A simple, efficient and general method for the synthesis of 4H-pyrans is established through a multi component cyclocondensation of aromatic aldehydes, malononitrile and ethyl acetoacetate or acetyl acetone using snail shell as a natural catalyst.

10p tocectocec 26-05-2020 23 2   Download

In simple reaction conditions, the use of DMAP is explored as an easy workup and a green catalyst for the one-pot three-component synthesis ethyl 3-amino-1-aryl-1H-benzo[f]chromene-2-carboxylate derivatives.

8p tocectocec 25-05-2020 13 3   Download

An effective and expeditious method of the synthesis of a highly functionalized piperidines, catalyzed by nontoxic, recyclable and environment friendly sodium lauryl sulfate (SLS), via one-pot multi-component condensation of aldehydes, amines and β-ketoesters in water at room temperature, has been developed.

8p tocectocec 25-05-2020 9 2   Download

A Convenient and green synthesis of 4H-pyran derivatives via one-pot multicomponent reaction of aromatic aldehydes, malononitrile and ethyl acetoacetate using KOH loaded CaO as a catalyst under solvent free condition is reported. The morphology of the catalyst has been characterized by XRD and TEM.

12p tocectocec 25-05-2020 17 0   Download

An environmentally benign aqueous protocol for the synthesis of novel 2-((5-(4-methoxybenzylidene)-4-oxo-4,5-dihydrothiazol-2-yl)amino)substituted acid by using potassium carbonate as a base has been achieved.

14p tocectocec 25-05-2020 9 0   Download

In this study, a green and practical approach towards Hantzsch dihydropyridine synthesis of acridine-1,8-diones is introduced. Via the mentioned protocol, the one-pot condensation reaction of structurally diverse aromatic aldehydes, dimedone and NH4OAc was promoted by microwave radiation at solvent and catalyst-free conditions.

8p tocectocec 25-05-2020 4 0   Download