Atomically-thin Schottky-like photo-electrocatalytic cross-flow membrane reactors for ultrafast remediation of persistent organic pollutants

Kumari, Priyanka; Bahadur, Nupur; Conlan, Xavier A.; Laleh, Majid; Kong, Lingxue; O’Dell, Luke A.; Dumée, Ludovic F.; Merenda, Andrea

doi:10.1016/j.watres.2022.118519

Cited by 31 publications

(6 citation statements)

References 78 publications

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“…In connection with this, research is being carried out on reactors with various membranes for the photoelectrochemical oxidation of dyes. As conducting porous membranes, it is proposed to use stainless steel membranes coated with TiO2 and ZnO semiconductor oxides (Kumari et al 2022(Kumari et al , 2023. A sandwich membrane consisting of nylon fiber and stainless steel mesh with electro-deposited WO3 showed high efficiency in photoelectrocatalytic wastewater treatment from active red dye 120.…”

Section: Combined Photoelectrochemical Processes and Reactorsmentioning

confidence: 99%

Photoelectrochemical advanced oxidation processes for removal of azo dye from water: emerging aspects and oxidation products

Исаев

Shabanov

Rabadanov

et al. 2023

Preprint

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Azo dyes are one of the large classes of water soluble synthetic dyes with a wide range of colors and can be released into the environment when used. Azo dyes belong to one of the most numerous groups of synthetic dyes and are characterized by the presence of an azo group (-N=N-) with two or more symmetrical or asymmetrical aromatic radicals. Processes of photoelectrochemical oxidation using various approaches have been developed for the removal of azo dyes from wastewater. The fundamentals of different photoelectrochemical oxidation processes for azo dyes, such as photoelectrocatalytic oxidation (PEC), photoelectro-Fenton (PEF), and solar photoelectro-Fenton (SPEF) processes, are discussed. The use of different semiconductor materials as electrode materials in photoelectrocatalysis and PEF for azo dye removal, the influence of different parameters on the removal of azo dyes from wastewater, reactor design, combined photoelectrochemical oxidation, including the use of fuel cells, are also considered. The anodic, electrochemical, and photoelectrochemical oxidation processes for azo dye removal is compared. Also shows what products are mainly formed during photoelectrochemical oxidation of azo dyes and how photoelectrochemical oxidation affects the toxicity of azo dye solutions under different conditions.

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Section: Combined Photoelectrochemical Processes and Reactorsmentioning

confidence: 99%

Photoelectrochemical advanced oxidation processes for removal of azo dye from water: emerging aspects and oxidation products

Исаев

Shabanov

Rabadanov

et al. 2023

Preprint

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“…7 The use of heterogeneous systems adds diversity and resistance to the treatment of emerging contaminants, among the various methods are adsorption, the use of membranes, in addition to catalytic and photocatalytic methods. 8 Catalysis is an efficient, ecological, sustainable, innovative route that has been widely used in the remediation of emerging contaminants, 8,9 highlighting photocatalysts 6,10 and photoelectrocatalysts. 9 Photocatalytic processes are fast 10 and promote the degradation of several emerging contaminants via the production of oxidative species.…”

Section: Introductionmentioning

confidence: 99%

Photooxidation of organic compounds by mesoporous silica functionalized with rose bengal

Bittencourt,

Gomes,

Bazani

et al. 2024

J of Physical Organic Chem

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The reuse of waste and the use of renewable materials are of great environmental and economic interest. With that in mind, the synthesis of mesoporous silica can be performed using rice husk ash, which is an industrial waste generated in large quantities. This mesoporous material can be functionalized with photoactive molecules, enabling application in photocatalysis. In this work, we used mesoporous silica nanoparticles functionalized with rose bengal dye (RB) for photooxidation reactions of organic molecules, such as the antibiotic cefuroxime 1‐acetoxyethyl ester (cefuroxime axetil). The characterization results showed the formation of one‐dimensional channels with uniform size and two‐dimensional hexagonal arrangement, with surface area and pore diameter of 230 m2 g−1 and 5 nm, respectively. The infrared and UV‐Vis spectroscopy indicated the functionalization of silica with photoactive molecules. Finally, SBA‐15/RB was applied for the photooxidation of ascorbic acid and antibiotic cefuroxime axetil under irradiation with green light, proving to be efficient for the degradation of cefuroxime axetil. Investigation of the reactive oxygen species involved in photodegradation showed that the photooxidation mechanism mainly involves singlet oxygen.

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“…Dealloyed structures have been applied to several fields ranging from catalysis, through either thermal or electrocatalytic pathways, to sensing, by benefiting from the surface enhanced plasmonic properties of nanotextured metals . The scope of applications may however span beyond such applications to enable advanced thermal insulation or photoelectrocatalytic properties. , The applications of dealloyed nanoporous materials such as nanoporous gold can also be extended to a wide range of energy devices as these materials exhibit monolithic structures and high chemical stabilities …”

Section: Introductionmentioning

confidence: 99%

“…2 scope of applications may however span beyond such applications to enable advanced thermal insulation or photoelectrocatalytic properties. 14,21 The applications of dealloyed nanoporous materials such as nanoporous gold can also be extended to a wide range of energy devices as these materials exhibit monolithic structures and high chemical stabilities. 22 The ability of tuning both the pore size and ligament dimensions also represents a clear pathway in catalysis and separations to design membrane catalytic reactors or adsorptive filtration systems where specific metal to solute interactions are required.…”

Section: Introductionmentioning

confidence: 99%

Nanoporous Dealloyed Metal Materials Processing and Applications─A Review

Scandura

Kumari

Palmisano

et al. 2023

Ind. Eng. Chem. Res.

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The development of porous metal materials with pore geometries and sizes at the nanoscale offers promising opportunities for the development of smart responsive interfaces for separation and catalytic applications and as building blocks for complex composite materials. Dealloying is an innovative technique based on selective removal of a sacrificial metal from a metal alloy to engineer surface textures and pores across significant thicknesses. Dealloyed structures may be processed over large scales and for a range of source alloys, offering unprecedented manufacturing opportunities. This review presents the operations and challenges of dealloying routes and discusses avenues for process optimizations and improvements, aiming at the development of scalable nanoporous materials. The potential of dealloyed materials for catalytic and sensing applications is expanded and benchmarked against reference materials. Future prospects and applications of dealloyed materials toward surface reactivity control and pore architecture development are highlighted.

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Atomically-thin Schottky-like photo-electrocatalytic cross-flow membrane reactors for ultrafast remediation of persistent organic pollutants

Cited by 31 publications

References 78 publications

Photoelectrochemical advanced oxidation processes for removal of azo dye from water: emerging aspects and oxidation products

Photoelectrochemical advanced oxidation processes for removal of azo dye from water: emerging aspects and oxidation products

Photooxidation of organic compounds by mesoporous silica functionalized with rose bengal

Nanoporous Dealloyed Metal Materials Processing and Applications─A Review

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