Degradation of aqueous 2,4,4′-Trihydroxybenzophenone by persulfate activated with nitrogen doped carbonaceous materials and the formation of dimer products

Pan, Xiaoxue; Chen, Jing; Wu, Nannan; Qi, Yumeng; Xu, Xinxin; Ge, Jiali; Wang, Xinghao; Li, Chenguang; Qu, Ruijuan; Sharma, Virender K.; Wang, Zunyao

doi:10.1016/j.watres.2018.06.038

Cited by 184 publications

(41 citation statements)

References 69 publications

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“…This is based on the textural structure and surface chemical properties of the carbon nanotubes and graphene during heteroatom doping. The recent work of Pan et al (2018) found that the catalytic performance of carbonaceous materials improved significantly after nitrogen doping of the carbon nanotubes and graphite oxide. In addition, pyrolysis is widely applied to enhance the performance of carbon-based materials; for instance, the activation performance of biochar is significantly influenced by pyrolysis temperature and time (Zhao et al, 2017).…”

Section: Carbon-based Materialsmentioning

confidence: 99%

A Review Study on Sulfate-Radical-Based Advanced Oxidation Processes for Domestic/Industrial Wastewater Treatment: Degradation, Efficiency, and Mechanism

et al. 2020

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High levels of toxic organic pollutants commonly detected during domestic/industrial wastewater treatment have been attracting research attention globally because they seriously threaten human health. Sulfate-radical-based advanced oxidation processes (SR-AOPs) have been successfully used in wastewater treatment, such as that containing antibiotics, pesticides, and persistent organic pollutants, for refractory contaminant degradation. This review summarizes activation methods, including physical, chemical, and other coupling approaches, for efficient generation of sulfate radicals and evaluates their applications and economic feasibility. The degradation behavior as well as the efficiency of the generated sulfate radicals of typical domestic and industrial wastewater treatment is investigated. The categories and characteristics of the intermediates are also evaluated. The role of sulfate radicals, their kinetic characteristics, and possible mechanisms for organic elimination are assessed. In the last section, current difficulties and future perspectives of SR-AOPs for wastewater treatment are summarized.

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Section: Carbon-based Materialsmentioning

confidence: 99%

A Review Study on Sulfate-Radical-Based Advanced Oxidation Processes for Domestic/Industrial Wastewater Treatment: Degradation, Efficiency, and Mechanism

et al. 2020

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“…Very recently, many studies have indicated that the appearance of DMPO-X can be ascribed to the proliferation of free radicals. 40,41 For PMS activation on NCNTs, similar EPR signals were also observed, while the intensities of the EPR peaks were much stronger; this conrms that PMS activation was more effective on NCNT-750 than on CNT-750. To clarify the impact of catalyst surface oxidation on the activation efficiency, the EPR spectra of PMS activation on the reused catalysts (U-CNT-1 and U-NCNT-1) were also determined.…”

Section: Catalytic Pms Activation For Phenol Degradationmentioning

confidence: 72%

Deactivation and regeneration of carbon nanotubes and nitrogen-doped carbon nanotubes in catalytic peroxymonosulfate activation for phenol degradation: variation of surface functionalities

Hou

Han

et al. 2019

RSC Adv.

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“…In fact, the solution pH is a vital factor during persulfate oxidation process and the pH variation can largely change the removal rate of the substrates via impacting the species distribution and contribution of the generated reactive oxygen species (ROS), as well as the changing existing states of organic compounds (Qi et al, 2021). However, most of impacts could be overlaid or ignored possibly on account of the proliferated ROS content derived from the catalytic performance of nanocarbon-based materials towards persulfate (Pan et al, 2018a). This result suggested that the PS/nanocarbon-based catalysts technique can be applied in a large pH range.…”

Section: Reaction Kinetics Of Bps In Ps/(n-)swcnts Systemmentioning

confidence: 99%

Experimental and Theoretical Study on the Transformation Behavior of Bisphenol S by Radicals Driven Persulfate Oxidation

Wei

Yin

et al. 2021

Preprint

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An in-depth study on the degradation of bisphenol S (BPS) by both single-walled carbon nanotubes and heat activated persulfate (PS) was investigated in detail. The factors like materials dosage, initial substrate concentration, initial pH and water matrix on removal of BPS were evaluated and 10 µM BPS could be completely removed in 90 min under the optimal conditions of [BPS]0: [PS]0 = 1: 100, T = 25 ℃, pH0 = 7.0, [N-SWCNTs] = 20 mg·L− 1. Fast removal of BPS was also obtained when reaction temperature reached 65 ℃ without catalyst. There were 15 intermediates identified in total; and hydroxylation, sulfate addition, carboxylation, the cleavage of S − C bond and polymerization were considered as the main transformation pathways of BPS in both two systems based on LC-MS analysis. The proportion discrepancy of •OH and SO4•− involved in two systems led to different distribution and abundance of observed products. The results of transition state calculation further confirmed the reaction potential of hydroxylation, hydrogen atom abstraction and sulfate addition, and the minimum reaction barriers were 22.20, 25.06 and 13.85 kJ/mol, respectively. The present work firstly reveals the overall transformation behavior of BPS in radicals-triggered PS system by combining experimental and theoretical study.

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Degradation of aqueous 2,4,4′-Trihydroxybenzophenone by persulfate activated with nitrogen doped carbonaceous materials and the formation of dimer products

Cited by 184 publications

References 69 publications

A Review Study on Sulfate-Radical-Based Advanced Oxidation Processes for Domestic/Industrial Wastewater Treatment: Degradation, Efficiency, and Mechanism

A Review Study on Sulfate-Radical-Based Advanced Oxidation Processes for Domestic/Industrial Wastewater Treatment: Degradation, Efficiency, and Mechanism

Deactivation and regeneration of carbon nanotubes and nitrogen-doped carbon nanotubes in catalytic peroxymonosulfate activation for phenol degradation: variation of surface functionalities

Experimental and Theoretical Study on the Transformation Behavior of Bisphenol S by Radicals Driven Persulfate Oxidation

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