Hydrothermal route-enabled synthesis of sludge-derived carbon with oxygen functional groups for bisphenol A degradation through activation of peroxymonosulfate

Hu, Wenyuan; Tong, Wenhua; Li, Yulin; Xie, Yi; Chen, Yundi; Wen, Jiang; Feng, Shangfa; Wang, Xuqian; Li, Panyu; Wang, Yabo; Zhang, Yongkui

doi:10.1016/j.jhazmat.2019.121801

Cited by 74 publications

(14 citation statements)

References 49 publications

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“…59 Importantly, as the catalytic center for PDS activation, CO may be beneficial to phenol degradation. 60 Meanwhile, the presence of the Fe–O peak indicates that iron is combined with the surface functional groups of the sludge, which is consistent with the conclusion from FT-IR.…”

Section: Resultssupporting

confidence: 84%

Persulfate oxidation enhanced extraction to improve the removal of high concentration phenol wastewater

Bao

Cheng

Niu

et al. 2022

Environ. Sci.: Water Res. Technol.

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Section: Resultssupporting

confidence: 84%

Persulfate oxidation enhanced extraction to improve the removal of high concentration phenol wastewater

Bao

Cheng

Niu

et al. 2022

Environ. Sci.: Water Res. Technol.

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“…Typically, 1 O 2 could be generated from the self‐decomposition of PMS and the mutual conversion with O 2 •− (Text S6, Supporting Information). [ 40 , 41 ] In order to prove the conclusion of the quenching experiments further, we also used D 2 O as the solvent to perform the quenching experiments. The lifetime of 1 O 2 is closely related to the solvent, and the relevant data are listed in Table S6 (Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Atomic Fe‐N‐C Materials and Dual Roles Investigation of Fe‐N₄ Sites in Fenton‐Like Reactions

Wang

et al. 2021

Advanced Science

143

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Fenton-like reactions with persulfates as the oxidants have attracted increasing attentions for the remediation of emerging antibiotic pollutions. However, developing effective activators with outstanding activities and long-term stabilities remains a great challenge in these reactions. Herein, a novel activator is successfully synthesized with single iron atoms anchored on porous N-doped carbon (Fe-N-PC) by a facile chemical vapor deposition (CVD) method. The single Fe atoms are coordinated with four N atoms according to the XANES, and the Fe-N 4 -PC shows enhanced activity for the activation of peroxymonosulfate (PMS) to degrade sulfamethoxazole (SMX). The experiments and density functional theory (DFT) calculations reveal that the introduction of single Fe atoms will regulate the main active sites from graphite N into Fe-N 4 , thus could enhance the stability and tune the PMS activation pathway from non-radical into radical dominated process. In addition, the N atoms connected with single Fe atoms in the Fe-N 4 -C structure can be used to enhance the adsorption of organic molecules on these materials. Therefore, the Fe-N 4 -C here has dual roles for antibiotics adsorption and PMS activation. The CVD synthesized Fe-N 4 -C shows enhanced performance in persulfates based Fenton-like reactions, thus has great potential in the environmental remediation field.

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“…As shown in Figure S13, when solvent H 2 O was completely replaced with D 2 O, the BPA degradation by c -10-CuO/Al 2 O 3 enhanced, indicating the significant role of 1 O 2 in c -10-CuO/Al 2 O 3 /PDS system. Typically, 1 O 2 could be formed by several pathways such as the self-decomposition of PDS, O 2 •– intermediate, or ketonic groups on carbonaceous materials. − The production of O 2 •– can be confirmed by benzoquinone ( k (BQ, O 2 •– ) = 3 × 10 8 M –1 s –1 ) and carbonate ( k (CO 3 2– , O 2 •– ) = 3 × 10 8 M –1 s –1 ). As shown in Figure S12d, the removal of BPA is decreased by 38.2% with the inhibition of 1 mM BQ, indicating the sensitive inhibitory effect of BQ on the degradation process of BPA.…”

Section: Resultsmentioning

confidence: 99%

Easily Regenerated CuO/γ-Al₂O₃ for Persulfate-Based Catalytic Oxidation: Insights into the Deactivation and Regeneration Mechanism

Wang

et al. 2021

ACS Appl. Mater. Interfaces

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In this work, γ-Al2O3-supported CuO (c-CuO/Al2O3) materials are successfully synthesized using a novel impregnation–precipitation–decomposition method. The obtained c-CuO/Al2O3 catalyst shows excellent catalytic activities for bisphenol A (BPA) degradation with sodium persulfate (PDS) as an oxidant. Radical quenching tests and electron paramagnetic resonance (EPR) studies indicate that PDS activation is a combined mechanism involving both free radical and nonfree radical pathways. In a continuous large-scale degradation process, about 1.78 L of 20 ppm BPA can be completely removed within 480 min. Although c-CuO/Al2O3 can be deactivated after several reaction cycles, the catalytic activity can be regenerated after simple aerobic calcination. X-ray photoelectron spectroscopy (XPS) and Raman analysis confirm that the deactivation of c-CuO/Al2O3 should be attributed to the conversion of Cu(II) to Cu(I). The aerobic calcination could oxidize Cu(I) back to Cu(II), thus recovering the catalytic activity. In addition, the density functional technology (DFT) and temperature-programmed oxidation (TPD) results reveal that γ-Al2O3 can not only serve as a carrier to anchor the CuO particles but also can adsorb and activate PDS by introducing more basic sites on the surface. c-CuO/Al2O3 has high activity and can be regenerated easily, thus having great potential applications for wastewater treatment.

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Hydrothermal route-enabled synthesis of sludge-derived carbon with oxygen functional groups for bisphenol A degradation through activation of peroxymonosulfate

Cited by 74 publications

References 49 publications

Persulfate oxidation enhanced extraction to improve the removal of high concentration phenol wastewater

Persulfate oxidation enhanced extraction to improve the removal of high concentration phenol wastewater

Facile Synthesis of Atomic Fe‐N‐C Materials and Dual Roles Investigation of Fe‐N₄ Sites in Fenton‐Like Reactions

Easily Regenerated CuO/γ-Al₂O₃ for Persulfate-Based Catalytic Oxidation: Insights into the Deactivation and Regeneration Mechanism

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Hydrothermal route-enabled synthesis of sludge-derived carbon with oxygen functional groups for bisphenol A degradation through activation of peroxymonosulfate

Cited by 74 publications

References 49 publications

Persulfate oxidation enhanced extraction to improve the removal of high concentration phenol wastewater

Persulfate oxidation enhanced extraction to improve the removal of high concentration phenol wastewater

Facile Synthesis of Atomic Fe‐N‐C Materials and Dual Roles Investigation of Fe‐N4 Sites in Fenton‐Like Reactions

Easily Regenerated CuO/γ-Al2O3 for Persulfate-Based Catalytic Oxidation: Insights into the Deactivation and Regeneration Mechanism

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Product

Resources

About

Facile Synthesis of Atomic Fe‐N‐C Materials and Dual Roles Investigation of Fe‐N₄ Sites in Fenton‐Like Reactions

Easily Regenerated CuO/γ-Al₂O₃ for Persulfate-Based Catalytic Oxidation: Insights into the Deactivation and Regeneration Mechanism