CoMn2O4 Catalyst Prepared Using the Sol-Gel Method for the Activation of Peroxymonosulfate and Degradation of UV Filter 2-Phenylbenzimidazole-5-sulfonic Acid (PBSA)

Lin, Chihao; Shi, Deshun; Wu, Zhentao; Zhang, Lingfeng; Zhai, Zhicai; Fang, Yingsen; Han, Ruirui; Wu, Jiaqiang; Liu, Hui

doi:10.3390/nano9050774

Cited by 25 publications

(8 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is widely accepted that SO4 − •and HO are the main oxidative radicals in most PS activation processes. In many radical studies, tert-butyl alcohol (TBA) was reported as the trapping agent of HO, while ethanol (ETA) was used as the trapping agent of SO4 − and HO [45]. As it can be noticed that the addition of TBA (3 M) and ETA (3 M) showed strong inhibitory effects on the SS-600-HCl/PS system for phenol degradation.…”

Section: Mechanism Analysis Of Phenol Degradation By Ss-600-hcl/psmentioning

confidence: 99%

Surface-Modified Sewage Sludge-Derived Carbonaceous Catalyst as a Persulfate Activator for Phenol Degradation

Han

Zhang

Chu³

et al. 2020

IJERPH

View full text Add to dashboard Cite

In this study, a catalytic persulfate oxidation process comprising sodium persulfate (PS) and modified sewage sludge-derived carbonaceous catalysts was tested for the degradation of phenol. Sludge-based biochar was modified by high-temperature treatment combined with hydrochloric acid oxidation. The surface properties of carbonaceous catalysts before and after modification were characterized by elemental analysis, N2 isothermal adsorption-desorption, scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. The effects of reaction parameters including catalyst dosage, PS/phenol molar ratio, initial pH and reaction temperature on the degradation rate of phenol were investigated. The kinetics of phenol transformation was explored and the reaction rate appeared pseudo first-order kinetics. In SS-600-HCl/PS system, 91% phenol could be efficiently degraded under certain reaction conditions ([phenol]0 = 100 mg/L, catalyst dosage = 0.8 g/L, PS/phenol molar ratio = 3/1, pH = 7, 25 °C) in 180 min. Thus, the results showed that the modified sewage sludge-derived carbonaceous catalyst had a better ability to activate PS for phenol degradation.

show abstract

Section: Mechanism Analysis Of Phenol Degradation By Ss-600-hcl/psmentioning

confidence: 99%

Surface-Modified Sewage Sludge-Derived Carbonaceous Catalyst as a Persulfate Activator for Phenol Degradation

Han

Zhang

Chu³

et al. 2020

IJERPH

View full text Add to dashboard Cite

show abstract

“…Transition metal manganites of spinel type are valuable functional materials. In particular, they are of interest as magnetic materials [ 46 , 47 , 48 ], catalysts [ 49 , 50 ], photovoltaic materials [ 51 ], electrode materials [ 52 , 53 ], and materials for negative temperature coefficient thermistors [ 54 ]. Therefore, we carried out the solid-state thermolysis of the obtained compounds 1 – 8 in the air flow in the temperature range of 25–950 °C.…”

Section: Resultsmentioning

confidence: 99%

Mononuclear Transition Metal Cymantrenecarboxylates as Precursors for Spinel-Type Manganites

et al. 2022

View full text Add to dashboard Cite

Novel mononuclear cymantrenecarboxylate complexes of transition metals, [Co(H2O)6](CymCO2)2·4H2O (Cym = (η5-C5H4)Mn(CO)3) (1), [Ni(H2O)6](CymCO2)2·4H2O (2), [Zn(H2O)6](CymCO2)2·4H2O (3), [Co(CymCO2)2(imz)2] (imz = imidazole, 4), [Co(CymCO2)2(bpy)2]·2PhMe (bpy = 2,2′-bipyridyl, 5), [Ni(CymCO2)(bpy)2(H2O)][CymCO2]·0.5MePh·2H2O (6), [Cu(CymCO2)2(imz)2] (7), and [Cu(CymCO2)2(bpy)(H2O)] (8), were obtained and characterized by single-crystal X-ray analysis. Complexes 1–3 are isostructural. Magnetism of the Co complexes 1, 4, and 5 was studied; it was shown that they exhibit the properties of field-induced single-molecule magnets with magnetization reversal barriers (ΔE/kB) of 44, 13, and 10 K, respectively. Thermal decomposition of complexes 1–8 was studied by means of DSC and TGA methods. The final products of thermolysis of 1–6 in air, according to powder XRD data, are the pure spinel phases MMn2O4; for the cases of copper complexes, the mixtures of CuMn2O4 and CuO were found in the products.

show abstract

“…Common activation methods of PMS include photo and thermal methods [ 17 , 18 , 19 ], microwave, transition metal ions, zero-valent iron, etc. [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. However, these methods have been found to have defects such as loss of metal ions, high energy consumption, etc.…”

Section: Introductionmentioning

confidence: 99%

N-Doped Biochar as a New Metal-Free Activator of Peroxymonosulfate for Singlet Oxygen-Dominated Catalytic Degradation of Acid Orange 7

et al. 2021

Self Cite

View full text Add to dashboard Cite

In this paper, using rice straw as a raw material and urea as a nitrogen precursor, a composite catalyst (a nitrogen-doped rice straw biochar at the pyrolysis temperature of 800 °C, recorded as NRSBC800) was synthesized by one-step pyrolysis. NRSBC800 was then characterized using XPS, BET, TEM and other technologies, and its catalytic performance as an activator for permonosulfate (PMS) to degrade acid orange 7 (AO7) was studied. The results show that the introduction of N-doping significantly improved the catalytic performance of NRSBC800. The NRSBC800/PMS oxidation system could fully degrade AO7 within 30 min, with the reaction rate constant (2.1 × 10 −1 min−1) being 38 times that of RSBC800 (5.5 × 10−3 min−1). Moreover, NRSBC800 not only had better catalytic performance than traditional metal oxides (Co3O4 and Fe3O4) and carbon nanomaterial (CNT) but also received less impact from environmental water factors (such as anions and humic acids) during the catalytic degradation process. In addition, a quenching test and electron paramagnetic resonance (EPR) research both indicated that AO7 degradation relied mainly on non-free radical oxidation (primarily singlet oxygen (1O2)). A recycling experiment further demonstrated NRSBC800’s high stability after recycling three times.

show abstract

CoMn2O4 Catalyst Prepared Using the Sol-Gel Method for the Activation of Peroxymonosulfate and Degradation of UV Filter 2-Phenylbenzimidazole-5-sulfonic Acid (PBSA)

Cited by 25 publications

References 48 publications

Surface-Modified Sewage Sludge-Derived Carbonaceous Catalyst as a Persulfate Activator for Phenol Degradation

Surface-Modified Sewage Sludge-Derived Carbonaceous Catalyst as a Persulfate Activator for Phenol Degradation

Mononuclear Transition Metal Cymantrenecarboxylates as Precursors for Spinel-Type Manganites

N-Doped Biochar as a New Metal-Free Activator of Peroxymonosulfate for Singlet Oxygen-Dominated Catalytic Degradation of Acid Orange 7

Contact Info

Product

Resources

About