Cocatalyst or substrate? Competitive Fenton transformation of cysteine and salicylic acid

Tang, Daojian; Zhang, Guishui; Chen, Fengxia; Ma, Jiahai

doi:10.1039/c9ew00158a

Cited by 6 publications

(2 citation statements)

References 36 publications

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“…Therefore, Fe 3+ is quickly accumulated during the Fenton reaction, which hinders the Fe 3+ /Fe 2+ cycle and slows the Fenton reaction rate. [ 199 ] To address the challenge, one of the most common strategies is to employ light to promote the recycling of Fenton reaction. [ 200,201 ] For example, Ju et al.…”

Section: Ros‐associated Nanomedicines For Disease Treatmentsmentioning

confidence: 99%

Reactive Oxygen Species‐Regulating Strategies Based on Nanomaterials for Disease Treatment

et al. 2020

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Reactive oxygen species (ROS) play an essential role in physiological and pathological processes. Studies on the regulation of ROS for disease treatments have caused wide concern, mainly involving the topics in ROS‐regulating therapy such as antioxidant therapy triggered by ROS scavengers and ROS‐induced toxic therapy mediated by ROS‐elevation agents. Benefiting from the remarkable advances of nanotechnology, a large number of nanomaterials with the ROS‐regulating ability are developed to seek new and effective ROS‐related nanotherapeutic modalities or nanomedicines. Although considerable achievements have been made in ROS‐based nanomedicines for disease treatments, some fundamental but key questions such as the rational design principle for ROS‐related nanomaterials are held in low regard. Here, the design principle can serve as the initial framework for scientists and technicians to design and optimize the ROS‐regulating nanomedicines, thereby minimizing the gap of nanomedicines for biomedical application during the design stage. Herein, an overview of the current progress of ROS‐associated nanomedicines in disease treatments is summarized. And then, by particularly addressing these known strategies in ROS‐associated therapy, several fundamental and key principles for the design of ROS‐associated nanomedicines are presented. Finally, future perspectives are also discussed in depth for the development of ROS‐associated nanomedicines.

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Section: Ros‐associated Nanomedicines For Disease Treatmentsmentioning

confidence: 99%

Reactive Oxygen Species‐Regulating Strategies Based on Nanomaterials for Disease Treatment

et al. 2020

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“…The introduction of reductants is another choice. By adding polyphenols and organic acids (e.g., ascorbic acid, protocatechuic acid, gallic acid, , and cysteine , ) as promotors, the ultrafast Fe(III)/Fe(II) cycle can be achieved. However, introducing these homogeneous reducing agents can competitively quench reactive species, which may also contribute to extra total organic carbon .…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Lignin-Based N/C Cocatalysts for Ultrafast Cyclic Fenton-Like Reactions in Water Purification via Graphitic N-Mediated Interfacial Electron Transfer

et al. 2022

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Herein, an eco-friendly lignin-based N-doped cocatalyst (N/C) was fabricated to enhance Fenton-like oxidation capacity. The N/ C-assisted Fe(III)/H 2 O 2 system showed ultrafast pollutant oxidation activity via an accelerated Fe(III)/Fe(II) cycle, exhibiting 16.9 times better caffeine removal efficiency than equivalent quantities of the classical Fenton system. N/C cocatalysts exhibited extraordinary stability and generality in the decontamination and disinfection of complex solution matrixes. Both experimental and theoretical calculation results demonstrated that graphitic N was the active site on N/C cocatalysts, which could elevate the reactivity of Fe(III) and make the interfacial electron transfer more feasible. In the N/C-mediated Fe(III)/H 2 O 2 system, an increase in electron transfer on the surface of N/C facilitated the formation of surface-bound Fe(II), thereby activating H 2 O 2 to produce hydroxyl radicals, the main active species for contaminant degradation. Notably, practical continuous water purification could be achieved by assembling N/C into fixed-bed reactors or membrane treatment units. These findings provide novel insights into N-doped carbonaceous cocatalysts and a promising green strategy for practical water treatment.

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Overlooked self-catalytic mechanism in phenolic moiety-mediated Fenton-like system: Formation of Fe(III) hydroperoxide complex and co-treatment of refractory pollutants

Chen

Wang²,

Huang³

et al. 2023

Applied Catalysis B: Environmental

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Cocatalyst or substrate? Competitive Fenton transformation of cysteine and salicylic acid

Abstract: Cysteine which acts as a cocatalyst enhanced the competitive Fenton transformation of salicylic acid.

Cited by 6 publications

References 36 publications

Reactive Oxygen Species‐Regulating Strategies Based on Nanomaterials for Disease Treatment

Reactive Oxygen Species‐Regulating Strategies Based on Nanomaterials for Disease Treatment

Eco-Friendly Lignin-Based N/C Cocatalysts for Ultrafast Cyclic Fenton-Like Reactions in Water Purification via Graphitic N-Mediated Interfacial Electron Transfer

Overlooked self-catalytic mechanism in phenolic moiety-mediated Fenton-like system: Formation of Fe(III) hydroperoxide complex and co-treatment of refractory pollutants

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