Dual functional cobalt-yttrium binary oxide activation of peroxymonosulfate for degradation of phenylphosphonic acid and simultaneous adsorption of phosphate product

Chen, Cheng; Pang, Yaqian; Li, Yuxin; Li, Wei; Lan, Yeqing; Shen, Wenbiao

doi:10.1016/j.cej.2021.132185

Cited by 19 publications

(6 citation statements)

References 56 publications

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“…This was because the increased PDS concentration increased the SO 4 • − concentration, which strengthened the degradation effect, and the removal effect was optimal at a concentration of 0.5 mM. However, when the PDS concentration exceeded 0.5 mM, the % removal of PPOA decreased (Figure 4C), probably due to the quenching of SO 4 • − with the high concentration of PDS, which caused a decrease in the % degradation of PPOA [45], Compared with cobalt-yttrium binary oxide [11], PAN A F-FeOOH degraded PPOA with lower persulfate concentration. The effect of reaction time on the removal of PPOA at various temperatures was also explored (Figure 4D).…”

Section: Elemental Analysis (Ea)mentioning

confidence: 98%

“…Furthermore, OP compounds are widely applied as pesticides, scale inhibitors, flame retardants, and plasticizers [9,10]. Ester organophosphorus is the main existing form of OP, which is often detected in water bodies and seriously threatens water safety and human health [11,12]. Hence, the recovery and recycling of OP from wastewater are of imminent importance.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, a novel polyacrylonitrile fiber loaded with FeOOH (PAN A F-FeOOH) was synthesized using the sol-gel method to activate PDS for PPOA degradation. Phenylphosphonic acid (PPOA), a typical OP compound used as an important industrial chemical, was selected as the model pollutant [11]. The PPOA degradation and phosphate adsorption abilities of PAN A F-FeOOH were evaluated, and the main factors affecting the degradation of PPOA and phosphate removal were studied.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of FeOOH-Loaded Aminated Polyacrylonitrile Fiber for Simultaneous Removal of Phenylphosphonic Acid and Phosphate from Aqueous Solution

Rui

Liu

et al. 2023

Polymers

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Phosphorus is one of the important metabolic elements for living organisms, but excess phosphorus in water can lead to eutrophication. At present, the removal of phosphorus in water bodies mainly focuses on inorganic phosphorus, while there is still a lack of research on the removal of organic phosphorus (OP). Therefore, the degradation of OP and synchronous recovery of the produced inorganic phosphorus has important significance for the reuse of OP resources and the prevention of water eutrophication. Herein, a novel FeOOH-loaded aminated polyacrylonitrile fiber (PANAF-FeOOH) was constructed to enhance the removal of OP and phosphate. Taking phenylphosphonic acid (PPOA) as an example, the results indicated that modification of the aminated fiber was beneficial to FeOOH fixation, and the PANAF-FeOOH prepared with 0.3 mol L−1 Fe(OH)3 colloid had the best performance for OP degradation. The PANAF-FeOOH efficiently activated peroxydisulfate (PDS) for the degradation of PPOA with a removal efficiency of 99%. Moreover, the PANAF-FeOOH maintained high removal capacity for OP over five cycles as well as strong anti-interference in a coexisting ion system. In addition, the removal mechanism of PPOA by the PANAF-FeOOH was mainly attributed to the enrichment effect of PPOA adsorption on the fiber surface’s special microenvironment, which was more conducive to contact with SO4•− and •OH generated by PDS activation. Furthermore, the PANAF-FeOOH prepared with 0.2 mol L−1 Fe(OH)3 colloid possessed excellent phosphate removal capacity with a maximal adsorption quantity of 9.92 mg P g−1. The adsorption kinetics and isotherms of the PANAF-FeOOH for phosphate were best depicted by pseudo-quadratic kinetics and a Langmuir isotherm model, showing a monolayer chemisorption procedure. Additionally, the phosphate removal mechanism was mainly due to the strong binding force of iron and the electrostatic force of protonated amine on the PANAF-FeOOH. In conclusion, this study provides evidence for PANAF-FeOOH as a potential material for the degradation of OP and simultaneous recovery of phosphate.

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Section: Elemental Analysis (Ea)mentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis of FeOOH-Loaded Aminated Polyacrylonitrile Fiber for Simultaneous Removal of Phenylphosphonic Acid and Phosphate from Aqueous Solution

Rui

Liu

et al. 2023

Polymers

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“…Frontier electron density (FED) is the electron density function corresponding to the frontier orbital (HOMO or LUMO), which is calculated for each atom in predicting reaction sites. ,,,,− It can also be referred to as “frontier atomic population”. The calculation method of FED is: 2 normalF normalE normalD normalH normalO normalM normalO 2 = 2 × normalΘ normalA normalH normalO normalM normalO normalF normalE normalD normalH normalO normalM normalO 2 + normalF normalE normalD normalL normalU normalM normalO 2 = normalΘ normalA normalH normalO normalM normalO + normalΘ normalA normalL normalU normalM normalO where Θ A HOMO and Θ A LUMO are the contributions of the HOMO and LUMO of atom A, respectively.…”

Section: Reactive Active Site Prediction Based On Target Molecule Pro...mentioning

confidence: 99%

Section: Reactive Active Site Prediction Based On Target Molecule Pro...mentioning

confidence: 99%

DFT Calculation of Nonperiodic Small Molecular Systems to Predict the Reaction Mechanism of Advanced Oxidation Processes: Challenges and Perspectives

et al. 2023

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Advanced oxidation processes (AOPs) have a broad range of potential applications in the treatment of emerging refractory emerging pollutants. However, due to the presence of highly reactive substances such as free radicals that are difficult to capture, it is challenging to investigate the mechanism of AOPs at the elementary reaction level. The conventional methods, such as electron spin resonance (ESR), free radical quantification, and free radical quenching, are plagued by systematic issues that have led to bottlenecks in the field of AOP studies. The development of computational chemistry theory and computer performance provides a new method to study the mechanism of AOPs through density functional theory (DFT) calculation. Due to its excellent cost–performance benefit, DFT calculations for aperiodic small molecules have become popular in the field of AOPs. In this paper, a comprehensive review is presented on the applications of DFT calculations for predicting active sites and exploring reaction selectivity and oxidant activation mechanisms. A systematic classification of methods related to molecular descriptors and transition states is provided. Furthermore, some current research issues are identified, and future development prospects and challenges are discussed.

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Novel Y2O3 based calcium-alginate beads for highly selective adsorption of phosphate from aqueous solution

Lin

et al. 2023

Environ Sci Pollut Res

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Dual functional cobalt-yttrium binary oxide activation of peroxymonosulfate for degradation of phenylphosphonic acid and simultaneous adsorption of phosphate product

Cited by 19 publications

References 56 publications

Synthesis of FeOOH-Loaded Aminated Polyacrylonitrile Fiber for Simultaneous Removal of Phenylphosphonic Acid and Phosphate from Aqueous Solution

Synthesis of FeOOH-Loaded Aminated Polyacrylonitrile Fiber for Simultaneous Removal of Phenylphosphonic Acid and Phosphate from Aqueous Solution

DFT Calculation of Nonperiodic Small Molecular Systems to Predict the Reaction Mechanism of Advanced Oxidation Processes: Challenges and Perspectives

Novel Y2O3 based calcium-alginate beads for highly selective adsorption of phosphate from aqueous solution

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