Development of ZnO/PDMS nanocomposite with photocatalytic/hydrophobic multifunction

Santiago, A.A.G.; Gondim, J.G.S; Tranquilin, R. L.; Silva, F.S.; Fernández, Fátima; Costa, Maria Carolina Burgos; Motta, F. V.; Bomio, M. R. D.

doi:10.1016/j.cplett.2019.137051

Cited by 22 publications

(11 citation statements)

References 44 publications

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“…Furthermore, Deng et al [98] concluded that, even after 400 washes, the composite maintained its characteristics. Wang et al [99] and Santiago et al [100] found that the hydrophobicity of the composites does not influence its catalytic activity; under UV radiation, the contact angle decreases by up to 90 • .…”

Section: Pdms-supported Photocatalysismentioning

confidence: 99%

An Overview of Polymer-Supported Catalysts for Wastewater Treatment through Light-Driven Processes

Silva

Gomes

Ferreira

et al. 2022

Water

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In recent years, alarm has been raised due to the presence of chemical contaminants of emerging concern (CECs) in water. This concern is due to the risks associated with their exposure, even in small amounts. These complex compounds cannot be removed or degraded by existing technologies in wastewater treatment plants. Therefore, advanced oxidation processes have been studied, with the objective of developing a technology capable of complementing the conventional water treatment plants. Heterogenous photocatalysis stands out for being a cost-effective and environmentally friendly process. However, its most common form (with suspended catalytic particles) requires time-consuming and costly downstream processes. Therefore, the heterogeneous photocatalysis process with a supported catalyst is preferable. Among the available supports, polymeric ones stand out due to their favorable characteristics, such as their transparency, flexibility and stability. This is a relatively novel process; therefore, there are still some gaps in the scientific knowledge. Thus, this review article aims to gather the existing information about this process and verify which questions are still to be answered.

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Section: Pdms-supported Photocatalysismentioning

confidence: 99%

An Overview of Polymer-Supported Catalysts for Wastewater Treatment through Light-Driven Processes

Silva

Gomes

Ferreira

et al. 2022

Water

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“…Given the importance of water–PDMS interaction in microfluidics systems, several data can be found in literature regarding the contact angle of water on PDMS. Experimental 41–45 and computational 46,47 studies give values in the range of 100–115° for water–PDMS contact angle. He et al 45 report a contact angle of 90° ± 5° for acetonitrile, a conventional solvent for DNA synthesis.…”

Section: Resultsmentioning

confidence: 99%

Development of a transferable coarse-grained model of polydimethylsiloxane

et al. 2022

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“…3 h, 6 h). [47,48] The SA modified ZnO NRs degrade CV in shorter irradiation time (25 min) compared to the reported timings (Table S3). [83][84][85][86][87][88][89] In comparison with literature, the surface modification of ZnO NRs with SA, in the present study, requires very less time (5 min).…”

Section: Mechanism Of Photocatalytic Degradationmentioning

confidence: 77%

“…[47] The reported surface modification methods for ZnO nanoparticles have disadvantages, such as requirement of high temperature (e. g. 200 °C) and longer time (e. g. 3 h) for the surface modification. [48] In the present study, the surface of ZnO NRs has been modified using a simple approach with stearic acid (SA) at room temperature in about 5 minutes. So far, to the best of authors' knowledge, there are no reports on the surface modification of ZnO NRs under such mild conditions.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of ZnO Nanorods using Stearic Acid and their Self‐cleaning and Photocatalytic Applications

Narwal,

Jeevanandam

2023

ChemistrySelect

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In the current study, a cost‐effective simple strategy has been developed for the surface modification of ZnO nanorods (NRs). The ZnO NRs were surface modified using stearic acid. The ZnO NRs and stearic modified ZnO NRs were characterized using various analytical techniques. FT‐IR, TGA, and CHO analyses prove successful surface modification of ZnO NRs with stearic acid. FE‐SEM and TEM analyses show no change in morphology of ZnO NRs before and after the surface modification. The stearic acid modified ZnO NRs show water contact angle greater than 90° which suggests their hydrophobic nature. XPS analysis shows presence of Zn2+ and O2− in pure ZnO and the stearic acid modified ZnO NRs. The stearic acid modified ZnO NRs were explored for self‐cleaning and they were also tested as catalyst for photocatalytic degradation of crystal violet in an aqueous solution. Kinetics and recyclability studies were also carried out for the photodegradation of crystal violet using the stearic acid modified ZnO NRs.

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Development of ZnO/PDMS nanocomposite with photocatalytic/hydrophobic multifunction

Cited by 22 publications

References 44 publications

An Overview of Polymer-Supported Catalysts for Wastewater Treatment through Light-Driven Processes

An Overview of Polymer-Supported Catalysts for Wastewater Treatment through Light-Driven Processes

Development of a transferable coarse-grained model of polydimethylsiloxane

Surface Modification of ZnO Nanorods using Stearic Acid and their Self‐cleaning and Photocatalytic Applications

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