Comparative study on ferrate oxidation of BPS and BPAF: Kinetics, reaction mechanism, and the improvement on their biodegradability

Yang, Tao; Wang, Lu; Liu, Yu-Lei; Huang, Zhuangsong; He, Haiyang; Wang, Xianshi; Jiang, Jin; Gao, Dawen; Ma, Jun

doi:10.1016/j.watres.2018.10.018

Cited by 104 publications

(35 citation statements)

References 47 publications

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“…Typical treatments by anaerobic sludge, photo-degradation and biodegradation are not effective for BPS, implying the difficulty of its catalytic removal. 41 Overall, the developed CoP/C sample is recyclable and applicable for the removal of BPA analogues.…”

Section: Mechanism Of Pms Activation For Bpa Degradationmentioning

confidence: 93%

A bifunctional CoP/N-doped porous carbon composite derived from a single source precursor for bisphenol A removal

Tong

Xie

et al. 2020

RSC Adv.

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Section: Mechanism Of Pms Activation For Bpa Degradationmentioning

confidence: 93%

A bifunctional CoP/N-doped porous carbon composite derived from a single source precursor for bisphenol A removal

Tong

Xie

et al. 2020

RSC Adv.

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“…Electrospray ionization (ESI-) at negative mode was employed to examine the mass spectra from 40 to 1000 m/z. As for the ion source, the ion spray was set at a floating voltage of 4500 V, source temperature was 500 ℃, curtain flowed at 35 psi, nebulizer was set at 50 psi, de-clustering potential (DP) was at -100 V and collision energy (CE) was set at -30-40 V, as described in a previous study [38]. Ltd China) and TOC was measured by a TOC analyser (Multi N/C 2100, Analytik Jena, Germany).…”

Section: Experimental Analysismentioning

confidence: 99%

“…Benzene has a molecular weight of 78 Da, and thus it is likely that loss of benzene occurred in the reaction. With reference to published results, P4 was assigned to 4,4,4-trifluoro-3-hydroxy-3-(trifluoromethyl)-kethoxal [38]. The fragmentation information from Fig.…”

Section: Influence Of Coexisting Inorganic Anionsmentioning

confidence: 99%

“…The product linked by the C-C double bond might undergo double bond and ring cleavage processes and transform into low-molecularmass products (P4). In addition, Yang et al have reported that hydroxyl-BPAF (P1) could also transform into DP3 and be further degraded into P4[38], indicating different adding positions of the -OH group would lead a different degradation pathway and further research was needed to investigate this correlation. Finally, as shown in Fig.…”

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confidence: 99%

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Ultrasound-enhanced zero-valent copper activation of persulfate for the degradation of bisphenol AF

Wang

Cao

Han

et al. 2019

Chemical Engineering Journal

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Ultrasound (US) was introduced into a persulfate (PS) / zero-valent copper (ZVC) system for the degradation of bisphenol AF (BPAF). In this system, ZVC worked as a catalyst to activate PS. Compared with the PS/ZVC process, the degradation rate of BPAF in the PS/ZVC/US system raised significantly from 59.8% to 97.0% due to a synergistic interaction between sonolysis and a heterogeneous reaction. When ultrasound was 120 W at 20 kHz and initial BPAF concentration was 20 mol/L, the BPAF could be completely removed after a 60-min reaction with 0.5 g/L ZVC, 1 mM PS. According to kinetics research, the decomposition of BPAF in a PS/ZVC/US system could be separated into two stages with a demarcation point after about 20 min of reaction via pseudo-first-order rate constants (). A Quantitative analytical k obs modeling for the study of main radicals was established, and the result indicated was the predominant radical in acidic conditions and both •OH and SO •-4 SO •-4 were the predominant radicals in relative basic conditions. Moreover, the effects of initial persulfate dosage, initial BPAF concentration, and coexisting inorganic anions on BPAF degradation were evaluated. A high-accuracy mass spectrometer was used to study the oxidation process and potential activities were deduced. Finally, the possible reaction mechanisms in the PS/ZVC/US system is proposed that the surface heterogeneous catalysis was the key step to activate PS. This work will promote the understanding of the utilization of ZVC in advanced oxidation and also the key role of in activating PS. Cu +

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“…With the ever-rising concern on this problem, various methods, such as chlorination (Gao et al, 2018), biodegradation (Wang et al, 2019b), photochemical degradation (Kovačič et al, 2019), manganese dioxide and ferrate oxidation (Li et al, 2018;Yang et al, 2019), have been applied to eliminate BPS. Nevertheless, the long consuming time, high cost and complex pretreatment etc.…”

Section: Introductionmentioning

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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Comparative study on ferrate oxidation of BPS and BPAF: Kinetics, reaction mechanism, and the improvement on their biodegradability

Cited by 104 publications

References 47 publications

A bifunctional CoP/N-doped porous carbon composite derived from a single source precursor for bisphenol A removal

A bifunctional CoP/N-doped porous carbon composite derived from a single source precursor for bisphenol A removal

Ultrasound-enhanced zero-valent copper activation of persulfate for the degradation of bisphenol AF

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

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