Radio-green chemistry and nature resourced radiochemistry

Lahiri, Susanta; Choudhury, Dibyasree; Sen, Kamalika

doi:10.1007/s10967-018-6240-3

Cited by 17 publications

(4 citation statements)

References 127 publications

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“…As presented by Lahiri, Choudhury and Sen [22], the development of new radiochemical methods is now dictated by the green chemistry mandates, especially in terms of choosing solvents and reagents. The practice of green chemistry has become an inevitable requisite in every facet of chemical process [23].…”

Section: Green Chemistrymentioning

confidence: 99%

Advanced Heavy Water Reactor: A New Step Toward Sustainability

et al. 2021

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One of the great advances in the current evolution of nuclear power reactors is occurring in India, with the Advanced Heavy Water Reactor (AHWR). It is a reactor that uses thorium as part of its fuel, which in its two fueling cycle options, in conjunction with plutonium or low enriched uranium, produces energy at the commercial level, generating less actinides of long half-life and inert thorium oxide, which leads to an optimization in the proportion of energy produced versus the production of burnt fuels of the order of up to 50%. The objective of this work is to present the most recent research and projects in progress in India, and how the expected results should be in compliance with the current sustainability models and programs, especially the "Green Chemistry", a program developed since the 1990s in the United States and England, which defines sustainable choices in its twelve principles and that can also be mostly related to the nuclear field. Nevertheless, in Brazil, for more than 40 years there has been the discontinuation of research for a thorium-fueled reactor, and so far there has been no prospect of future projects. The AHWR is an important example as an alternative way of producing energy in Brazil, as the country has the second largest reserve of thorium on the planet.

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Section: Green Chemistrymentioning

confidence: 99%

Advanced Heavy Water Reactor: A New Step Toward Sustainability

et al. 2021

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“…Nature resourced chemistry is defined as the use of chemicals or reagents obtained from nature in developing various chemical processes. [6] One such example is tea leaves (Camellia sinensis) which is the most common beverage consumed worldwide. There are three major types of tea produced worldwide namely green tea, black tea and oolong tea.…”

Section: Introductionmentioning

confidence: 99%

“…In 2018, two terms were introduced‐ “nature resourced chemistry” and “nature resourced chemicals”. Nature resourced chemistry is defined as the use of chemicals or reagents obtained from nature in developing various chemical processes [6] . One such example is tea leaves ( Camellia sinensis) which is the most common beverage consumed worldwide.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Aqueous Biphasic Separation of No‐Carrier‐Added ^71,72As from a Gallium Oxide Target Using Green Tea Polyphenols

Mitra,

Naskar,

Lahiri

et al. 2023

ChemistrySelect

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Environmentally benign aqueous biphasic separation (ABS) techniques have been developed to separate no‐carrier added (NCA) 71,72As from 46 MeV α‐particles irradiated gallium oxide target. Catechins were isolated from green tea leaves as a nature resourced chemical. Efficacy of catechins on aqueous biphasic separation of NCA 71,72As from bulk gallium was studied at best conditions and found that catechin acted as synergistic agent in the ABS system. Bulk gallium was preferentially extracted into the PEG+ catechins phase (wherein 2 M Na‐malonate was used as salt‐rich phase) with a separation factor of 2.06×103 leaving 71,72As in the salt rich phase. At this condition, 90 % 71,72As was retained in the salt rich phase with bulk gallium contamination less than 0.5 %.

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“…Nature is enriched with resources of large numbers of molecular entities, which can be obtained from different terrestrial flora. Nature resourced chemistry in the framework of green chemistry can be defined as the development of chemical processes with the help of the chemicals or reagents of natural origin 1 . The philosophy and mandate green chemistry has crossed the boundary of chemical sciences and widened its scope to many other branches of sciences.…”

Section: Introductionmentioning

confidence: 99%

Natural Flavonoids as Superior Reagents for Separation of Clinically Important Zr Radionuclides

Kalpita¹,

Naskar²,

Choudhury³

et al. 2019

Preprint

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This paper exploits the affinity of bio-flavonoid hesperidin, isolated from orangepeel, towards the separation of clinically important 88Zr radionuclide from high energy proton bombarded yttrium target. The extraction of Zr with hesperidin was studied by solid-liquid extraction (SLX) technique over a wide pH range. The advantage of hesperidin is that it acts as separating agent as well as free-radical scavenging agent upon injection of the radionuclidehesperidin complex in-vivo. The stability of isolated hesperidin under strong radiation field was also studied. The selectivity of the bio-flavonoid towards 88Zr was maximum at pH=4 where in >78% Zr was extracted with <1% contamination from bulk yttrium target.

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Radio-green chemistry and nature resourced radiochemistry

Cited by 17 publications

References 127 publications

Advanced Heavy Water Reactor: A New Step Toward Sustainability

Advanced Heavy Water Reactor: A New Step Toward Sustainability

Synergistic Aqueous Biphasic Separation of No‐Carrier‐Added ^71,72As from a Gallium Oxide Target Using Green Tea Polyphenols

Natural Flavonoids as Superior Reagents for Separation of Clinically Important Zr Radionuclides

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Radio-green chemistry and nature resourced radiochemistry

Cited by 17 publications

References 127 publications

Advanced Heavy Water Reactor: A New Step Toward Sustainability

Advanced Heavy Water Reactor: A New Step Toward Sustainability

Synergistic Aqueous Biphasic Separation of No‐Carrier‐Added 71,72As from a Gallium Oxide Target Using Green Tea Polyphenols

Natural Flavonoids as Superior Reagents for Separation of Clinically Important Zr Radionuclides

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Synergistic Aqueous Biphasic Separation of No‐Carrier‐Added ^71,72As from a Gallium Oxide Target Using Green Tea Polyphenols