Results 21 to 30 of about 1,620,128 (307)

Da génese ao ensino da química verde

open access: yesQuímica Nova, 2011
An analysis of the activities that contributed to the birth of Green Chemistry (GC) about twenty years ago has shown that it emerged in response to the problems of pollution and wastes felt by the Chemical Industry.
Adélio A. S. C. Machado
doaj   +1 more source

Green Chemistry Metrics with Special Reference to Green Analytical Chemistry

open access: yesMolecules, 2015
The concept of green chemistry is widely recognized in chemical laboratories. To properly measure an environmental impact of chemical processes, dedicated assessment tools are required.
Marek Tobiszewski   +3 more
doaj   +1 more source

Synthesis of Metal and Metal Oxide Nanoparticles Using Plant Extract: a Review [PDF]

open access: yes, 2017
Nanotechnology is an emerging technology and it is related to various applications. Related to nanotechnology development, the use of green chemistry concept, low cost technology and sustainability is a must.
Fatimah, I. (Is)
core   +2 more sources

Some appropriate strategies for introducing green chemistry education into secondary school chemistry curriculum [PDF]

open access: yesفصلنامه نوآوری‌های آموزشی, 2013
Green Chemistry means manufacture of new products using new techniques that fits the three objectives of sustainable environment, sustainable economy and sustainable society.
Leilā Habibi bodlālo   +2 more
doaj  

SUSTAINABILITY, SUSTAINABLE DEVELOPMENT, SUSTAINABLE CHEMISTRY, AND GREEN CHEMISTRY: PARALLELS AND INTERCONNECTIONS [PDF]

open access: yesQuímica Nova
The interconnectedness between sustainability, sustainable development, sustainable chemistry, and green chemistry is evident in the pursuit of innovative solutions that can balance economic, environmental, and social needs, thereby building a more ...
Acacio S. de Souza   +5 more
doaj   +1 more source

An environmentally benign antimicrobial nanoparticle based on a silver-infused lignin core [PDF]

open access: yes, 2015
Silver nanoparticles have antibacterial properties, but their use has been a cause for concern because they persist in the environment. Here, we show that lignin nanoparticles infused with silver ions and coated with a cationic polyelectrolyte layer form
A Duval   +58 more
core   +2 more sources

Selective synthesis of meta-phenols from bio-benzoic acids via regulating the adsorption state

open access: yesiScience, 2023
Summary: Phenols are important building blocks widely applied in many fields. The pronounced orientational effect of the phenolic hydroxyl group makes achieving selective synthesis of meta-phenols challenging.
Xinze Du   +4 more
doaj   +1 more source

Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications [PDF]

open access: yes, 2012
In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future.
Camy, Séverine   +2 more
core   +3 more sources

A theoretical investigation of the reaction between the amidogen, NH, and the ethyl, C2H5, radicals: a possible gas-phase formation route of interstellar and planetary ethanimine [PDF]

open access: yes, 2018
The reaction between the amidogen, NH, radical and the ethyl, C2H5, radical has been investigated by performing electronic structure calculations of the underlying doublet potential energy surface. Rate coefficients and product branching ratios have also
Balucani, Nadia   +5 more
core   +3 more sources

Bromine radical as a visible-light-mediated polarity-reversal catalyst

open access: yesiScience, 2021
Summary: Polarity-reversal catalysts enable otherwise sluggish or completely ineffective reactions which are characterized by unfavorable polar effects between radicals and substrates. We herein disclose that when irradiated by visible light, bromine can
Han Wang   +8 more
doaj   +1 more source

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