Wheat bran valorisation: Towards photocatalytic nanomaterials for benzyl alcohol photo-oxidation

Ouyang, Weiyi; Reina, Jose M.; Kuna, Ewelina; Yepez, Alfonso; Balu, Alina M.; Romero, Antonio A.; Colmenares, Juan Carlos; Luque, Rafael

doi:10.1016/j.jenvman.2016.07.013

Cited by 11 publications

(5 citation statements)

References 33 publications

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“…In addition, the presence of the residue in the structure for modulating the optical and chemical properties of the final catalysts has been also studied. In particular, a notable improvement of the selectivity to benzaldehyde from benzyl alcohol was detected for samples in with titania was modified with wheat bran residues . Electronic wastes are also an interesting source to obtain photocatalysts .…”

Section: Environmental Photocatalysismentioning

confidence: 99%

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Environmental Catalysis: Present and Future

et al. 2018

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Environmental catalysis plays a crucial role in sustainable development by the design of novel catalytic materials and technologies. Several environmental issues are addressed by catalytic processes such as decomposition of pollutants for air, water and soil remediation, hydrogen production, CO2 reduction and biomass valorization, just to name a few. This contribution aims to provide a general overview of the main concepts and current advances in the environmental catalysis field. Special attention has been paid to photocatalysis and electrocatalysis, as sub‐areas of catalysis with tremendous potential in sustainable applications, in particular with regard to the promotion of sustainable energies. In this contribution, the partnership between Catalysis and Green Chemistry is presented, in a comprehensive way, as an open research line which is imperative and decisive for a more sustainable future.

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Section: Environmental Photocatalysismentioning

confidence: 99%

“…[172] Electronic wastes are also an interesting source to obtain photocatalysts. [173][174][175] In a representative example, a nano-Cu 2 O/TiO 2 photocatalyst from waste printed circuit boards was obtained by electrokinetic process. [174] There is a lot of waste potentially useful for obtaining this kind of material.…”

Section: Photocatalytic Materialsmentioning

confidence: 99%

Environmental Catalysis: Present and Future

et al. 2018

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“…According to the 1500 results of the study, the extraction yield was found to increase by increasing the particle size and 1501 temperature. In a study by Ouyang et al [288] a set of titania nanocomposites have been prepared 1502 by the incorporation of different TiO2 content on wheat bran residues. The photocatalytic activity of the prepared titania nanocomposites was investigated in the oxidation of benzyl alcohol under UV light irradiation.…”

Section: Other Types Of Biomass Sources Upcyclingmentioning

confidence: 99%

Reusing, recycling and up-cycling of biomass: A review of practical and kinetic modelling approaches

Osman

Abdelkader

Farrell

et al. 2019

Fuel Processing Technology

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There is a growing interest in the utilisation of biomass for a range of applications. Coupled with 22 this is the appeal of improving the circular economy and as such, there is a focus on reusing, 23 recycling and upcycling of many materials, including biomass. This has been driven by society 24 in terms of demand for more sustainable energy and products, but also by a paradigm shift in 25 attitudes of the population to reduce their personal carbon footprint. Herein we have selected a 26 number of types of biomass (woody, herbaceous, etc.) and surveyed the ways in which they are 27 utilised. We have done this in combination with assessing some kinetic modelling approaches 28 which been reported for the evaluation of different processes for the recycling, reuse and 29 upcycling of biomass. 30

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“…Recent works from our group show our dedication in upgrading biomass/waste/by-products to carbonaceous systems for catalytic purposes in a variety of reactions. Ouyang et al [104] have synthesized photocatalytically active wheat bran@TiO2 via mechanochemical activation. In particular, 10% Ti-Bran yielded 22% of benzaldehyde at 33% conversion of benzyl alcohol, comparable to commercial TiO2.…”

Section: Biomass Conversion For Catalytic Materialsmentioning

confidence: 99%

Biomass Promises: A Bumpy Road to a Renewable Economy

Filiciotto

Luque

2018

CGC

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Biomass conversion strategies have been taking hold of the scientific community agenda in the evolution of renewable chemical and energy industries. Nonetheless, biomass conversion yet presents challenges due to its structural complexity, and high reactivity of the oxygen functionalities. This review aims to indicate the reader the main encountered difficulties in the conversion of plant-derived feedstocks and byproducts/waste, with a focus on the catalytic approaches taken so far and the efforts of our research group into contributing to a future bio-based economy.Fe2O3-PS nanomaterial. The latter nanocomposite also had comparable catalytic activity to the magnetic counterpart in the microwave-assisted alkylation of toluene after 3 minutes reaction, while the synthesized TiO2-Fe2O3-PS composite presented lower alkylation activity. Although not obvious from this work, a synergistic effect of earth abundant material, iron oxide, and carbon residues can be evidenced, in particular in oxidation reactions. In fact, our work on the use of iron oxide/humins nanocomposites in the microwaveassisted selective oxidation of isoeugenol's double bond to vanillin (Figure 9) in the presence of hydrogen peroxide under mild conditions (<150 °C, autogenous pressure) [91] has drawn similar conclusions (supported also by Bohre et al. [84]).

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Wheat bran valorisation: Towards photocatalytic nanomaterials for benzyl alcohol photo-oxidation

Cited by 11 publications

References 33 publications

Environmental Catalysis: Present and Future

Environmental Catalysis: Present and Future

Reusing, recycling and up-cycling of biomass: A review of practical and kinetic modelling approaches

Biomass Promises: A Bumpy Road to a Renewable Economy

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