Modified birnessite MnO2 as efficient Fenton-like catalysts through electron transfer process between the simultaneously surface-activated peroxymonosulfate and pollutants

Liu, Xiuying; Zhou, Jiao; Xia, Qianna; Li, Bowen; Gao, Qiaohui; Zhao, Shuaiqi; Khan, Aimal; Xu, Aihua; Li, Xiaoxia

doi:10.1016/j.jhazmat.2022.130178

Cited by 27 publications

(6 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, these Mn oxides could be applied in the synthesis of new composites, sodium-ion batteries, oxidation, removal of toxic ions, catalysts, supercapacitors, and sensors …”

Section: Resultsmentioning

confidence: 99%

“…Other strategies with these Mn oxides could be also promising to investigate WOR activity. 82−86 In addition, these Mn oxides could be applied in the synthesis of new composites, 87 sodium-ion batteries, 88 oxidation, 89 removal of toxic ions, 90 catalysts, 91 supercapacitors, 92 and sensors. 93…”

Section: The Journal Of Physical Chemistry C Pubsacsorg/jpcc Articlementioning

confidence: 99%

See 1 more Smart Citation

Effect of Different Metal Ions between Nanolayers of Manganese Oxide for Water Oxidation Reaction under Acidic Conditions

et al. 2023

View full text Add to dashboard Cite

A new approach is used to synthesize various metal ions [Mg(II), Ca(II), Ba(II), Al(III), Zn(II), Cd(II), Mn(II), Fe(III), Co(III), Ni(II), and Cu(II)] between layers of Mn oxide in a pre-synthesized framework of layered Mn−K oxide. These Mn oxides were heated at 60−600 °C, and their electrochemistry and water oxidation reaction (WOR) were investigated at pH = 1. Using this strategy, the framework of the structure of catalysts is the same, and all are synthesized in a layered Mn oxide containing K(I) framework. Thus, comparing different ions in the same framework is easier. After calcination at 300−600 °C, X-ray absorption spectroscopy shows a layered structure with no change in bulk, but XRD shows that a few conversions regarding layered Mn oxide → α-MnO 2 → α-Mn 2 O 3 occur. Indeed, after calcination at 300−600 °C, the formed layered Mn oxide converts into a better WOR catalyst. After calcination at ≥300 °C, small amounts of α-MnO 2 /α-Mn 2 O 3 are formed in the structure, which could be important for WOR. At 600 °C, trace amounts of crystalline α-Mn 2 O 3 are usually formed in the presence of redox-inert ions, which is not an efficient catalyst for WOR. In the presence of redox-active ions, the formation of metal oxides such as Fe, Co, Ni, and Ni oxides is possible at 600 °C. These metal oxides are usually catalysts for WOR. An open structure of layered Mn oxide could increase the WOR activity of these redox-active ions. Thus, Mn ions may not be active sites for WOR and could be a substrate for these redox-active ions. Among the redox-inert ions between the layers of Mn oxides, the presence of Ca(II) at 500 °C results in a significant increase in WOR. Interestingly, a Ca/Mn cluster is present in the biological WOR catalyst.

show abstract

“…In addition, these Mn oxides could be applied in the synthesis of new composites, sodium-ion batteries, oxidation, removal of toxic ions, catalysts, supercapacitors, and sensors …”

Section: Resultsmentioning

confidence: 99%

Section: The Journal Of Physical Chemistry C Pubsacsorg/jpcc Articlementioning

confidence: 99%

Effect of Different Metal Ions between Nanolayers of Manganese Oxide for Water Oxidation Reaction under Acidic Conditions

et al. 2023

View full text Add to dashboard Cite

show abstract

“…It was found that the N-doped graphene shell provided abundant active sites for the activation of PMS, which effectively reduced the leaching of Fe and Mn. Liu et al showed that FeMn/graphite nanosheets (GNs) exhibited 8.5 and 12.9 times higher first-order rate constants ( k = 0.22 min –1 ) for BPA degradation than Mn/GNs and Fe/GNs, respectively, due to their higher surface area, lower Mn oxidation state and more active sites …”

Section: Application Of Fe–mn-based Materials In Wastewater Decontami...mentioning

confidence: 99%

“…Liu et al showed that FeMn/graphite nanosheets (GNs) exhibited 8.5 and 12.9 times higher first-order rate constants (k = 0.22 min −1 ) for BPA degradation than Mn/GNs and Fe/GNs, respectively, due to their higher surface area, lower Mn oxidation state and more active sites. 135 (ii) The synergistic effect of the trimetals makes the catalysts have superior reduction and charge transfer ability compared with the pristine Mn/Fe bimetallic oxides. Wu et al revealed that the Fe−Mn−Cu hollow spheres (FCMHS)/PMS/ sulfamethoxazole (SMX) system achieved nearly 99.0% SMX degradation and 39.7% TOC removal under optimal conditions.…”

Section: Persulfates Compared With •Oh Somentioning

confidence: 99%

“…Liu et al revealed that direct dual electron transfer in the FeMn/GNs/PMS system can be activated by both BPA and PMS. 135 Second, 1 O 2 can be trapped by furfuryl alcohol and sodium azide, which has been shown to exhibit effective oxidation capacity against pollutants. 159 Xiong et al found that the 1 O 2 and electron transfer pathways in the FeMn@NG/ PMS/2,4,6-TCP system were the main mechanisms (Figure 7b).…”

Section: Persulfates Compared With •Oh Somentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of Fe–Mn-Based Materials and Their Applications in Advanced Oxidation Processes for Wastewater Decontamination: A Review

Dong

Shi

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

With the development of industry and agriculture, the increasingly serious problems of environmental pollution and water quality deterioration that affect human health need to be solved. Materials containing both Fe and Mn, the two most abundant metal elements, have been widely used for wastewater decontamination since they are nontoxic, low-cost, easy to prepare, and highly efficient. This review systematically summarizes the synthesis methods of Fe–Mn-based unloaded materials (such as spinel-type, perovskite-type, layered double hydroxides, metal–organic framework, and its derivatives) and loaded materials (carbon materials, oxides, and other loaded materials). Furthermore, the progress and problems of the application of Fe–Mn-based materials in the fields of Fenton, photo-Fenton, electro-Fenton, persulfate, and sulfite catalysis processes are analyzed. Different activation mechanisms of Fe–Mn-based materials, such as radical pathways and nonradical pathways (like direct electron transfer pathways, singlet oxygen, and high valence metals, etc.) are described. Finally, the application potential of Fe–Mn-based materials in environmental remediation is clarified and the future research directions are pointed out. It is expected that this review can provide new inspiration for subsequent research on the application of Fe–Mn based materials for wastewater treatment.

show abstract

Engineering active sites by boron modification in MnSiB metallic glasses for efficient catalytic performance

Zhang,

Liang,

Huang

et al. 2024

Applied Surface Science

View full text Add to dashboard Cite

Modified birnessite MnO2 as efficient Fenton-like catalysts through electron transfer process between the simultaneously surface-activated peroxymonosulfate and pollutants

Cited by 27 publications

References 54 publications

Effect of Different Metal Ions between Nanolayers of Manganese Oxide for Water Oxidation Reaction under Acidic Conditions

Effect of Different Metal Ions between Nanolayers of Manganese Oxide for Water Oxidation Reaction under Acidic Conditions

Synthesis of Fe–Mn-Based Materials and Their Applications in Advanced Oxidation Processes for Wastewater Decontamination: A Review

Engineering active sites by boron modification in MnSiB metallic glasses for efficient catalytic performance

Contact Info

Product

Resources

About