Magnetic zinc oxide/silica microbeads for the photocatalytic degradation of azo dyes

Al-Sharabi, Mohammed; Baiocco, Daniele; Lobel, Benjamin T.; Cayre, Olivier J.; Zhang, Zhibing; Routh, Alexander F.

doi:10.1016/j.colsurfa.2024.134169

Cited by 2 publications

(2 citation statements)

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“…146 These templates have also been used for the production of composite beads, such as magnetic photocatalytic microbeads for the degradation of dyes. 164,165 The size of the microcapsules/microbeads is directly related to the energy input of the mixer, i.e. high energy input via an increased mixing speed results in the production of capsules/beads with smaller sizes.…”

Section: Energy Of Productionmentioning

confidence: 99%

“…Such templates have been successfully used for the preparation of microcapsules that can be used in a number of applications including the encapsulation of anticancer drugs , and antibiotics . These templates have also been used for the production of composite beads, such as magnetic photocatalytic microbeads for the degradation of dyes. , The size of the microcapsules/microbeads is directly related to the energy input of the mixer, i.e. high energy input via an increased mixing speed results in the production of capsules/beads with smaller sizes .…”

Section: Energy Of Productionmentioning

confidence: 99%

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Current Challenges in Microcapsule Designs and Microencapsulation Processes: A Review

Lobel,

Baiocco,

Al-Sharabi

et al. 2024

ACS Appl. Mater. Interfaces

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Microencapsulation is an advanced methodology for the protection, preservation, and/or delivery of active materials in a wide range of industrial sectors, such as pharmaceuticals, cosmetics, fragrances, paints, coatings, detergents, food products, and agrochemicals. Polymeric materials have been extensively used as microcapsule shells to provide appropriate barrier properties to achieve controlled release of the encapsulated active ingredient. However, significant limitations are associated with such capsules, including undesired leaching and the nonbiodegradable nature of the typically used polymers. In addition, the energy cost of manufacturing microcapsules is an important factor to be considered when designing microcapsule systems and the corresponding production processes. Recent factors linked to UN sustainability goals are modifying how such microencapsulation systems should be designed in pursuit of "ideal" microcapsules that are efficient, safe, cost-effective and environmentally friendly. This review provides an overview of advances in microencapsulation, with emphasis on sustainable microcapsule designs. The key evaluation techniques to assess the biodegradability of microcapsules, in compliance with recently evolving European Union requirements, are also described. Moreover, the most common methodologies for the fabrication of microcapsules are presented within the framework of their energy demand. Recent promising microcapsule designs are also highlighted for their suitability toward meeting current design requirements and stringent regulations, tackling the ongoing challenges, limitations, and opportunities.

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Section: Energy Of Productionmentioning

confidence: 99%