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Titanium dioxide photocatalysis: An assessment of the environmental compatibility for the case of the functionalization of heterocyclics

Paper ID Volume ID Publish Year Pages File Format Full-Text
47196 46463 2010 6 PDF Available
Title
Titanium dioxide photocatalysis: An assessment of the environmental compatibility for the case of the functionalization of heterocyclics
Abstract

The environmental burden associated with some functionalization reactions of nitrogen-heteroaromatics via TiO2 (solar) photocatalysis is compared with the same reactions under thermal conditions. Two methods, LCA (Life Cycle Assessment) and EATOS (Environmental Assessment Tool for Organic Synthesis), both based on a detailed analysis of the experiments, are used for the assessment. The thermal processes are consistently evaluated to give a better environmental performance. Photocatalysis is disfavored by the required management of a large amount of excess reagent and solvent involved. Still the good yield and simplicity of the photocatalytic method are promising (and are positively evaluated by a third assessment, EcoScale). The precautions for making photocatalytic syntheses environmentally viable are discussed.

Keywords
Photocatalysis; Titanium dioxide; Life Cycle Assessment; Environment; EATOS Assessment
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 99, Issues 3–4, 9 September 2010, Pages 442–447
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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You save - $31
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