Encapsulation of essential oils in porous silica and MOFs for trichloroisocyanuric acid tablets used for water treatment in swimming pools

[Display omitted] •Trichloroisocyanuric acid (TCCA) tablets for water treatment in swimming pools.•Encapsulation of insect repellents in silica and MOFs MIL-53(Al) and MIL-88A(Al).•Repellents were geranic acid, citronellic acid, geraniol and IR3535®.•Inclusion in TCCA tablets of encapsulated insect...

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Bibliographic Details
Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2016-05, Vol.292, p.28-34
Main Authors: Paseta, Lorena, Simón-Gaudó, Elena, Gracia-Gorría, Francisco, Coronas, Joaquín
Format: Article
Language:English
Subjects:
Chemical engineering
Encapsulation
Essential oil
Porous material
Repellents
Silicon dioxide
Strategy
Swimming pools
Tablets
Trichloroisocyanuric acid
Water treatment
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Summary:[Display omitted] •Trichloroisocyanuric acid (TCCA) tablets for water treatment in swimming pools.•Encapsulation of insect repellents in silica and MOFs MIL-53(Al) and MIL-88A(Al).•Repellents were geranic acid, citronellic acid, geraniol and IR3535®.•Inclusion in TCCA tablets of encapsulated insect repellents.•TCCA with encapsulated repellents produced stable multifunctional tablets. Trichloroisocyanuric acid (TCCA) tablets are used for water treatment in swimming pools. This is a safe way of releasing hypochlorous acid with disinfectant, algaecide and bactericide functions. This work investigates the inclusion in such tablets of insect repellents (geranic acid, citronellic acid, geraniol and IR3535®) with a simultaneous perfume function. A simple mixture of TCCA with the repellents is not possible due to the incompatibility between both components. A strategy of encapsulation in silica and MOFs MIL-53(Al) and MIL-88A(Al) has been developed. The subsequent formulation of TCCA with the encapsulated repellents avoided the compatibility problems and produced marketable stable multifunctional (water treatment–insect repellency–perfume) tablets for water treatment.
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2016.02.001