Kinetic and mechanistic investigations of the degradation of propranolol in heat activated persulfate process

Gao, Yu-qiong; Fang, Jia-nan; Gao, Naiyun; Xue-nong, YI; Mao, Wei; Jia, Zhang

doi:10.1039/c8ra08488b

Cited by 23 publications

(3 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The t 1/2 was greatly reduced from 24.07 h to 1.85 h, indicating a significant improvement in the reaction activity and degradation efficiency. Based on detailed analysis, the production of SO 4 − · by catalytic activation of Na 2 S 2 O 8 [Eqn (11)] was enhanced with increases in temperature, 40 thus strengthening degradation performance.

S_{2} O_{8}^{2 -} \vec{false} 2 normalS O_{4}^{-}

In addition, the reaction activation energy E a was calculated according to the Arrhenius equation, 41 as shown in Fig. S5, revealing a highly linear relationship between ln k obs and 1/ T when the reaction temperature T ranged within 288–333 K. The value of E a was 41.58 kJ mol −1 .…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Efficient degradation of organophosphorus herbicide by free‐standing 3D reduced graphene oxide supported nFe₃O₄ catalytic‐activated persulfate

Zhao

Liu

et al. 2023

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND: Organophosphorus herbicides in water are an increasingly critical environmental problem. Given this challenge, a free-standing 3D reduced graphene oxide (GO) foam supporting Fe 3 O 4 nanoparticles (3D-rGO-Fe 3 O 4 ) was synthesized using GO as a precursor and applied as an efficient persulfate activator for glyphosate (GLY) degradation.RESULTS: The effects of Fe 3 O 4 mass, pH, oxidant dosage, temperature and common ions on GLY degradation were investigated in detail. Analytical techniques using scanning electron microscopy (SEM), Fourier transform infrared analysis (FTIR) and X-ray photoelectron spectroscopy (XPS) indicated that the 3D foam prevented aggregation of the Fe 3 O 4 nanoparticles by in situ uniform formation on GO nanosheets. The addition of Fe was vitally important for activation of the oxidation system. The results of batch-scale experiments illustrated that the GLY degradation efficiency reached 96.8% with initial GLY concentration 30 mg L −1 , graphene:Fe 3 O 4 mass ratio 1:7, solution pH 4 and persulfate mass 48 mg. High temperatures could significantly facilitate GLY degradation. Additionally, the 3D-rGO-Fe 3 O 4 material proved highly stable according to the replicated test results. Furthermore, EPR test results revealed that Na 2 S 2 O 8 catalytic activation by 3D-rGO-Fe 3 O 4 mainly produced •OH and SO 4 − •, and the predominant free radical was SO 4 − • in the current experiment. CONCLUSION:The results indicate that 3D-rGO-Fe 3 O 4 has good catalytic activity and stability, and, accordingly, has high application prospects for the remediation of organophosphorus herbicide-contaminated water.

show abstract

S_{2} O_{8}^{2 -} \vec{false} 2 normalS O_{4}^{-}

Section: Resultsmentioning

confidence: 99%

“…In addition, the reaction activation energy E a was calculated according to the Arrhenius equation, 41 as shown in Fig. S5, revealing a highly linear relationship between lnk obs and 1/T when the reaction temperature T ranged within 288-333 K. The value of E a was 41.58 kJ mol −1 .…”

Section: Dosage Of Persulfatementioning

confidence: 99%

Efficient degradation of organophosphorus herbicide by free‐standing 3D reduced graphene oxide supported nFe₃O₄ catalytic‐activated persulfate

Zhao

Liu

et al. 2023

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…Noticeably, SO 4 À • has a higher redox potential (2.5-3.1 V) than •OH and a longer half-life (30-40 μs) for efficient degradation of pollutants (Qi et al 2014;Luo et al 2021). In the advanced persulfate oxidation process, persulafate (PS) or peroxymonosulfate (PMS) can be activated via UV (Yang et al 2018), heat (Gao et al 2018a) or transition mental ions (Gao et al 2018b) to generate sulfate radicals (SO 4 À •). However, activating PMS with homogeneous transition metal ions has some drawbacks, such as the release of metal ions, difficult recovery of catalyst from the reaction solution and high dependence on pH (Gao et al 2018b).…”

Section: Introductionmentioning

confidence: 99%

Removal performance and mechanism of typical amino acids in water by the peroxymonosulfate/Fe3O4 nanoparticles

et al. 2021

View full text Add to dashboard Cite

Dissolved organic nitrogen (DON) as precursors of nitrogenous disinfection byproducts (N-DBPs) has become a serious issue for drinking water treatment. Here, Fe3O4/peroxymonosulfate (PMS) system was used to examine the amino acid removal and formation of N-DBPs in the system and the corresponding mechanisms. Results showed a remarked variation in removal efficiency of three typical amino acids, i.e., glutamate (78%), histidine (53%) and phenylalanine (27%) in Fe3O4/PMS system at optimum conditions (0.1 g/L Fe3O4, 1.5 mM PMS, 1 h). Notably, Fe3O4/PMS treatment led to dichloroacetonitrile (DCAN) formation caused by the chlorination of glutamate, phenylalanine and histidine being reduced by 53.3%, 9.7% and 41.9%, respectively. The degradation and subsequent N-DBPs formation in the Fe3O4/PMS system mainly depended on the types and properties of the amino acids. The formation of dichloroacetamide (DCAcAm) exhibited different trends, which may be due to the different R group structure of the three amino acids and the special aromaticity of imidazole ring in the histidine side chain that facilitates its quick electrophilic substitution and ring-opening reaction. This study highlights that the Fe3O4/PMS system is a promising strategy to remove DON and efficiently eliminate N-DBPs formation in the drinking water treatment process depending on the amino acid type.

show abstract

CoFe-LDO nanoparticles as a novel catalyst of peroxymonosulfate (PMS) for histidine removal

Luo

Liu

Zhao

2021

Environ Sci Pollut Res

View full text Add to dashboard Cite

Kinetic and mechanistic investigations of the degradation of propranolol in heat activated persulfate process

Abstract: The degradation kinetics and mechanism of propranolol by heat activated persulfate oxidation were investigated.

Cited by 23 publications

References 57 publications

Efficient degradation of organophosphorus herbicide by free‐standing 3D reduced graphene oxide supported nFe₃O₄ catalytic‐activated persulfate

Efficient degradation of organophosphorus herbicide by free‐standing 3D reduced graphene oxide supported nFe₃O₄ catalytic‐activated persulfate

Removal performance and mechanism of typical amino acids in water by the peroxymonosulfate/Fe3O4 nanoparticles

CoFe-LDO nanoparticles as a novel catalyst of peroxymonosulfate (PMS) for histidine removal

Contact Info

Product

Resources

About

Kinetic and mechanistic investigations of the degradation of propranolol in heat activated persulfate process

Abstract: The degradation kinetics and mechanism of propranolol by heat activated persulfate oxidation were investigated.

Cited by 23 publications

References 57 publications

Efficient degradation of organophosphorus herbicide by free‐standing 3D reduced graphene oxide supported nFe3O4 catalytic‐activated persulfate

Efficient degradation of organophosphorus herbicide by free‐standing 3D reduced graphene oxide supported nFe3O4 catalytic‐activated persulfate

Removal performance and mechanism of typical amino acids in water by the peroxymonosulfate/Fe3O4 nanoparticles

CoFe-LDO nanoparticles as a novel catalyst of peroxymonosulfate (PMS) for histidine removal

Contact Info

Product

Resources

About

Efficient degradation of organophosphorus herbicide by free‐standing 3D reduced graphene oxide supported nFe₃O₄ catalytic‐activated persulfate

Efficient degradation of organophosphorus herbicide by free‐standing 3D reduced graphene oxide supported nFe₃O₄ catalytic‐activated persulfate