Facile fabricate of novel Co(OH)F@MXenes catalysts and their catalytic activity on bisphenol A by peroxymonosulfate activation: The reaction kinetics and mechanism

Wang, Fei; Lai, Yuxian; Fang, Qinglu; Li, Zhiying; Ou, Ping; Wu, Panpan; Duan, Yaxiao; Chen, Zhuang; Ли, Шуай; Zhang, Yimei

doi:10.1016/j.apcatb.2019.118099

Cited by 110 publications

(30 citation statements)

References 43 publications

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“…As shown, the Ti 3 AlC 2 precursor displays typical diffraction peaks at 9.51, 191 and 391, consistent with previous reports. 25 After etching by LiF/HCl, the intense diffraction peak at 391 corresponding to the (104) facet disappears, and the two well-defined diffraction peaks at 9. 29 which indicates the successful preparation of the CdS@TiO 2 @C/Ti 3 C 2 samples.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of a high-efficiency CdS@TiO₂@C/Ti₃C₂ composite photocatalyst for the degradation of TC-HCl under visible light

et al. 2022

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Section: Resultsmentioning

confidence: 99%

Fabrication of a high-efficiency CdS@TiO₂@C/Ti₃C₂ composite photocatalyst for the degradation of TC-HCl under visible light

et al. 2022

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“…BPA can be lethal to humans or cause reproductive impairment, diabetes, neurological disorders, cardiovascular disease, and carcinogenic sensitivity [1,3]. BPA is usually used as the raw material for the preparation of epoxy resins, plastics, food containers, water pipes, toys, coatings, medical equipment, and electronics [4,5]. The United States (US) Environmental Protection Agency (EPA) reports that a lot of BPA has entered to the aquatic environment, resulting the ubiquitous presence of BPA in underwater and surface water [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…Peroxymonosulfate (PMS)-based advanced oxidation processes (AOPs) have aroused considerable attention in environmental remediation [5,6]. PMS could be activated to generate sulfate radicals (•SO 4 − ) and hydroxyl radicals (•OH) [7,8].…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Z-Scheme Bi2WO6/WO3 Composites for Efficient Photodegradation of Bisphenol A with Peroxymonosulfate Activation

et al. 2020

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The rational fabrication of direct Z-scheme heterostructures photocatalysts is a pivotal strategy to boost the interfacial charge migration and separation. Herein, direct Z-scheme Bi2WO6/WO3 composites were rationally fabricated for the degradation of bisphenol A combined with the activation of peroxymonosulfate (PMS). The tight interface contact between Bi2WO6 and WO3 was successfully formed by the in situ epitaxial growth of ultrathin Bi2WO6 nanosheets at the surface of WO3 nanorods. The Bi2WO6/WO3 composite presented highly efficient catalytic performance toward degradation of BPA with PMS activation as compared to the WO3 and Bi2WO6. PMS can dramatically boost the photocatalytic activity of the composites. Moreover, the results of active radical scavenging experiments revealed that h+, •O2−, and •SO4− are critical active species in the photodegradation reaction. Finally, the photocatalytic mechanism for the degradation of BPA is also discussed in detail. The great improvement of photocatalytic performance should be ascribed to the effective formation of the direct Z-scheme heterojunctions between Bi2WO6 and WO3, resulting in improved light absorption, an efficient transfer and separation of photoinduced charge carriers, and a considerable amount of the electrons and holes with strong reduction and oxidation abilities. The study might provide new inspirations to design and construct heterostructured nanomaterials with outstanding photoactivity for environmental remediation.

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“…The results reported in this study point out that the mechanism of activation of HSO 5 À by Co II aq is not reaction [1] as commonly assumed. The DFT calculations point out that the central cobalt cation facilitates the disproportionation of two HSO 5 À in analogy to the activation of H 2 O 2 by cations with high oxidation potentials, [17,23] although disproportionation of one HSO 5…”

Section: Discussionmentioning

confidence: 99%

“…À in the presence of cobalt initiated academic studies of this system. [4,8,17,18] Thus, a literature search for "cobalt and peroxymonosulfate" limited to English in SciFinder yields 5 results in 2010 & 161 in 2021 till 10. 18.…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of Reaction Between Co(II) Complexes and Peroxymonosulfate

Shamir¹,

Zilbermann²,

Katsaran

et al. 2021

Eur J Inorg Chem

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Advanced oxidation technologies often use peroxymonosulfate in the presence of Co II aq . It is commonly assumed that the reaction of Co(H 2 O) 6 2 + with HSO 5 À yields Co III aq and SO 4 *À . DFT results point out that first Co II (SO 5 )(H 2 O) 2 is formed. The homolysis of Co II (SO 5 )(H 2 O) 2 to yield (H 2 O)Co II (SO 5 )OH * + SO 4 * À , is exothermic but has a large activation energy. However the cobalt is not oxidized in this reaction. Co II (SO 5 )(H 2 O) 2 reacts with a second HSO 5 À to form Co II (SO 5 ) 2 (H 2 O) 2À that decomposes via disproportionation of the monoperoxysulfate ions without oxidation of the central cobalt ion. Surprisingly even in the presence of ligands, L, that stabilize Co III , i. e., pyrophosphate;tri-polyphosphate and ATP, the experimentally observed reaction mechanism involves the formation of LCo II -OOSO 3aq which then reacts with another HSO 5À to form LCo II -(OOSO 3 2À ) 2 . The latter complex decomposes via disproportionation of the monoperoxysulfate ligands followed by oxidation of the central cobalt cation. Alternatively, in the presence of excess Co II L aq , LCo II -OOSO 3aq reacts with Co II L aq to form 2Co III L aq . These results point out that the mechanism of advanced oxidation processes initiated by a mixture of Co(H 2 O) 6 2 + and HSO 5 À must be reconsidered.

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Facile fabricate of novel Co(OH)F@MXenes catalysts and their catalytic activity on bisphenol A by peroxymonosulfate activation: The reaction kinetics and mechanism

Cited by 110 publications

References 43 publications

Fabrication of a high-efficiency CdS@TiO₂@C/Ti₃C₂ composite photocatalyst for the degradation of TC-HCl under visible light

Fabrication of a high-efficiency CdS@TiO₂@C/Ti₃C₂ composite photocatalyst for the degradation of TC-HCl under visible light

Facile Fabrication of Z-Scheme Bi2WO6/WO3 Composites for Efficient Photodegradation of Bisphenol A with Peroxymonosulfate Activation

Mechanisms of Reaction Between Co(II) Complexes and Peroxymonosulfate

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Facile fabricate of novel Co(OH)F@MXenes catalysts and their catalytic activity on bisphenol A by peroxymonosulfate activation: The reaction kinetics and mechanism

Cited by 110 publications

References 43 publications

Fabrication of a high-efficiency CdS@TiO2@C/Ti3C2 composite photocatalyst for the degradation of TC-HCl under visible light

Fabrication of a high-efficiency CdS@TiO2@C/Ti3C2 composite photocatalyst for the degradation of TC-HCl under visible light

Facile Fabrication of Z-Scheme Bi2WO6/WO3 Composites for Efficient Photodegradation of Bisphenol A with Peroxymonosulfate Activation

Mechanisms of Reaction Between Co(II) Complexes and Peroxymonosulfate

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Fabrication of a high-efficiency CdS@TiO₂@C/Ti₃C₂ composite photocatalyst for the degradation of TC-HCl under visible light

Fabrication of a high-efficiency CdS@TiO₂@C/Ti₃C₂ composite photocatalyst for the degradation of TC-HCl under visible light