Bimetal-organic framework derived CoFe/NC porous hybrid nanorods as high-performance persulfate activators for bisphenol a degradation

Wang, Yu; Gao, Cong-Yu; Zhang, Yizhen; Leung, Michael K.H.; Liu, Jinwei; Huang, Suzhen; Liu, Guangli; Li, Jianfeng; Zhao, Huazhang

doi:10.1016/j.cej.2020.127800

Cited by 47 publications

(11 citation statements)

References 44 publications

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“…As revealed by the fitting of the primary reaction kinetic parameters in Figure 6b, the reaction rate constants showed that the elevated CuO/BC content accelerates the reaction and improved the removal efficiency of pollutants. Similar results were also reported by Wang et al 44 This is attributed to the increase of CuO/BC content introducing more active sites in the solution, thus fully activating the effect of persulfate on the reaction system to produce more active substances 39 . Moreover, considering the economic benefit and the principle of environmental protection, the CuO/BC dosage of 0.6 g/L is more suitable, which can completely degrade BPA within 60 min and the R 2 coefficient is smoother than others.…”

Section: Resultssupporting

confidence: 92%

Section: Effects Of Different Operational Parameters On Bpa Removalsupporting

confidence: 89%

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Study on copper oxide modified biochar for activating persulfate high efficiency and application for the removal of bisphenol A

Cheng

Wei

2023

Env Prog and Sustain Energy

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Advanced oxidation based on persulfate applied for the removal of organic pollutants has received widespread attention. Here, combining hydrothermal synthesis and a high‐temperature calcination approach, we constructed an effective copper oxide‐modified biochar from wood waste (Ginkgo biloba rods) for the removal of bisphenol A (BPA) from contaminated waterways. The modified biochar with copper oxide in its structure (CuO/BC) exhibited a densely arranged needle‐shaped structure different from pristine timber waste biochar (BC). CuO/BC can activate persulfate efficiently, and the removal rate of BPA could reach 100% within 20–30 min, approximately three times higher than that of BC. Moreover, CuO/BC was more suitable for treating BPA wastewater under alkaline conditions. The stability of CuO/BC, reaction intermediates, and possible degradation pathway were investigated. These results demonstrate the potential of the application of CuO/BC for organic wastewater treatment and shed light on a new approach to develop wastewater treatment materials that are carbon‐based and cost‐effective.

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Section: Resultssupporting

confidence: 92%

Section: Effects Of Different Operational Parameters On Bpa Removalsupporting

confidence: 89%

Study on copper oxide modified biochar for activating persulfate high efficiency and application for the removal of bisphenol A

Cheng

Wei

2023

Env Prog and Sustain Energy

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“…At present, SR-AOPs have gained much attention as a wide pH adaptability and high efficiency technology. ,− In this regard, MOFs-derived metal/carbon composites are deemed to be attractive catalysts for promoting peroxymonosulfate (PMS)/peroxydisulfate (PDS) activation due to their high efficiency and low adsorption energy . Generally, the possible mechanisms of PMS/PDS activation by MOFs-derived metal/carbon composites usually involve radical and nonradical pathways.…”

Section: Environmental Application Of Mofs-derived Metal/carbon Compo...mentioning

confidence: 99%

“…Similar effects have been reported in other relevant studies. 4,115 For instance, Zhou et al synthesized NiCo/CN by the one-step pyrolysis of NiCo/ZIF-67 and used them as oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) bifunctional electrocatalysts. 116 For ORR, the diffusion-limited current density of NiCo/CN (6.7 mA cm −2 ) was much higher than that of NiCo/ZIF-67 (0.9 mA cm −2 ).…”

Section: Conductivitymentioning

confidence: 99%

“…So far, a great deal of relevant research has been carried out on these problems. Among them, for most environmental remediation technologies and energy conversion systems, the high efficiency and durability of catalysts are critical. − For energy storage systems, research has focused on the design of electrode materials with high specific capacity and stability. − Therefore, reasonable construction of materials with optimal structure and function is the key to realize the high efficiency of these advanced technologies.…”

Section: Introductionmentioning

confidence: 99%

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Functional Metal/Carbon Composites Derived from Metal–Organic Frameworks: Insight into Structures, Properties, Performances, and Mechanisms

et al. 2023

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Metal−organic frameworks (MOFs) have extensively emerged as promising templates/precursors to prepare functional derivatives for various purposes because of their ultrahigh porosity, large specific surface area, and excellent user-configuration flexibility. Among these derivatives, MOFs-derived metal/carbon composites surmount the shortcomings of the individual components and produce synergistic effects, showing great potential in environmental remediation and energy storage and conversion. Herein, this work systematically discusses the synthetic strategies of MOFs-derived metal/carbon composites from the perspective of different MOF precursors, including pristine MOFs, heteroatom-doped MOFs, and MOFs composited with substrates. The unique advantages of MOFs-derived metal/carbon composites with exceptional stability, conductivity, and catalytic activity are then particularly summarized. On the basis of these advantages, their recent progress in the environment and energy fields is elaborated, with special emphasis on the elucidation of their mechanisms. Finally, the challenges and opportunities for future research are presented, which is expected to provide references for the design of multipurpose MOFs-derived metal/carbon composites.

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Controllable synthesis of FeMn bimetallic ferrocene-based metal–organic frameworks to boost the catalytic efficiency for removal of organic pollutants

Wang

et al. 2022

Environ Sci Pollut Res

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A series of FeMn bimetallic ferrocene-based metal-organic frameworks (FeMn-Fc-MOFs) with various molar ratios of Fe and Mn (1:9, 2:8, 4:6, 6:4) were successfully synthesized using a simple hydrothermal synthesis method and employed as an e cient activator on persulfate (PS) activation for water decontamination. Characterizations demonstrated that Fe and Mn were smoothly introduced into ferrocene-based MOFs and various molar ratios of Fe:Mn had some in uence on crystallinity and surface structure of FeMn-Fc-MOFs. Within 120 min, Fe 4 Mn 6 -Fc-MOFs demonstrated the best catalytic activity among the different molar ratios, and acid orange 7(AO7) degradation rate was up to 92.0%. In addition, electrochemical experiments revealed that Fe 4 Mn 6 -Fc-MOFs possessed superior electron transfer capability than other FeMn-Fc-MOFs, leading to better catalytic performance. Moreover, quenching tests and electron paramagnetic resonance (EPR) detection indicated that hydroxyl radicals and sulfate radicals were both responsible for AO7 decomposition. Notably, the redox cycle of Fe(II)/Fe(III) and Mn(II)/Mn(IV) was discovered in the Fe 4 Mn 6 -Fc-MOFs/PS system, which was considered as the limiting process for the cleavage of the O-O bond in PS to generate active radicals. Ultimately, the Fe 4 Mn 6 -Fc-MOFs exhibits an excellent universality and good cycling stability for 5 continuous runs. This paper broadens the application of ferrocene-based MOFs on heterogeneous PS activation in environmental catalysis. HighlightsFeMn-Fc-MOFs catalysts with various molar ratios were synthesized by hydrothermal method.The Fe 4 Mn 6 -Fc-MOFs exhibited the best catalytic performance due to it's excellent electrochemical properties. SO 4•− and • OH were the main radicals in catalytic degradation of acid orange 7.The synergistic effect of Fe and Mn accelerates the redox reaction.

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Bimetal-organic framework derived CoFe/NC porous hybrid nanorods as high-performance persulfate activators for bisphenol a degradation

Cited by 47 publications

References 44 publications

Study on copper oxide modified biochar for activating persulfate high efficiency and application for the removal of bisphenol A

Study on copper oxide modified biochar for activating persulfate high efficiency and application for the removal of bisphenol A

Functional Metal/Carbon Composites Derived from Metal–Organic Frameworks: Insight into Structures, Properties, Performances, and Mechanisms

Controllable synthesis of FeMn bimetallic ferrocene-based metal–organic frameworks to boost the catalytic efficiency for removal of organic pollutants

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