Porous 0D/3D NiCo2O4/g-C3N4 accelerate emerging pollutant degradation in PMS/vis system: Degradation mechanism, pathway and toxicity assessment

Jiang, Jingjing; Wang, Xingyue; Zhang, Chongjun; Li, Tianren; Lin, Yanhong; Xie, Tengfeng; Dong, Shuang-Lin

doi:10.1016/j.cej.2020.125356

Cited by 125 publications

(33 citation statements)

References 47 publications

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“…However, due to the complex components of OBDCA-sp, the generation pathway of • OH, SO 4 •– , and 1 O 2 remains unclear. The possible path generation was postulated as follows ( formulae 6 – 11 ) 25 , 46 …”

Section: Resultsmentioning

confidence: 99%

Activation of Peroxymonosulfate Using Secondary Pyrolysis Oil-Based Drilling Cuttings Ash for Pollutant Removal

Zhao

Sun

et al. 2021

ACS Omega

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In this study, the utilization of secondary pyrolysis oil-based drilling cuttings ash (OBDCA-sp) to activate peroxymonosulfate (PMS) for pollutant removal was investigated. The chemical and physical properties of OBDCA-sp were explicitly analyzed via multiple characterization. The activation efficiency of OBDCA-sp for PMS was tested using humic acid (HA) as the target pollutant. 92% of HA and 52% of total organic carbon in solution could be removed using OBDCA-sp-activated PMS under optimal conditions: OBDCA-sp dosage at 4 g/L, PMS concentration at 4 mmol/L, HA concentration at 10 mg/L, and pH value at 7. After four cycles, 84% removal rate of HA could still be achieved using OBDCA-sp to activate PMS. The main catalysis elements for PMS activation in OBDCA were postulated to be Fe(III), Co(III), and Mn(III), based on X-ray photoelectron spectroscopy and X-ray diffraction results. The results of the quenching experiment indicated that SO 4 •– , • OH, and 1 O 2 were the main reactive oxygen species (ROS) and that 1 O 2 was the dominant ROS in the HA removal process. Radical trapping experiments indicated the presence of SO 4 •– , • OH, and 1 O 2 in the reaction system. This study presented a novel utilization path of OBDCA in the field of environmental remediation.

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Section: Resultsmentioning

confidence: 99%

Activation of Peroxymonosulfate Using Secondary Pyrolysis Oil-Based Drilling Cuttings Ash for Pollutant Removal

Zhao

Sun

et al. 2021

ACS Omega

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“…Liang et al prepared porous 0D/3D NiCo 2 O 4 /g-C 3 N 4 composite for carbamazepine removal. 99% of degradation was achieved in 10 min under visible light irradiation [93]. Jin et al constructed Z-scheme MoS 2 /A g/g-C 3 N 4 via a method of chemical electrostatic adsorption.…”

Section: Photo-assisted Sulfate Radical Based Aopsmentioning

confidence: 99%

Graphitic Carbon Nitride-Based Composite in Advanced Oxidation Processes for Aqueous Organic Pollutants Removal: A Review

2020

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In recent decades, a growing number of organic pollutants released have raised worldwide concern. Graphitic carbon nitride (g-C3N4) has drawn increasing attention in environmental pollutants removal thanks to its unique electronic band structure and excellent physicochemical stability. This paper reviews the recent progress of g-C3N4-based composites as catalysts in various advanced oxidation processes (AOPs), including chemical, photochemical, and electrochemical AOPs. Strategies for enhancing catalytic performance such as element-doping, nanostructure design, and heterojunction construction are summarized in detail. The catalytic degradation mechanisms are also discussed briefly.

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“…The leaching rates in cobalt oxide systems are normally high. , In order to avoid using excessive amounts of cobalt chemicals, our primary mission is to further improve the activity of cobalt complexes and develop a facile method for recycling. Current researches have explored some new approaches, including the introduction of other transition metals or carbon materials . Nickel, as a low-toxicity element, can be combined with cobalt to promote advanced oxidation reactions. − NiCo 2 O 4 (spinel structure) is an excellent catalyst, which has multiple oxidation states and high electronic conductivity .…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide-Supported Three-Dimensional Cobalt–Nickel Bimetallic Sponge-Mediated Peroxymonosulfate Activation for Phenol Degradation

Chen

et al. 2021

ACS EST Eng.

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Advanced oxidation processes (AOPs) based on peroxymonosulfate (PMS) have been effective techniques for wastewater treatment. However, the recovery of powder catalysts and their granulation are limiting the application of heterogeneous AOPs technology. To tackle these issues, recoverable graphene oxide-based three-dimensional (3D) cobalt−nickel bimetallic sponges (SCNGs) were synthesized via a simple dipping process. Thermogravimetric analysis confirmed that the bimetal content of SCNGs was only 7.7%. The SCNGs/PMS system was proved to be greatly effective to treat various organic pollutants, achieving over 71% and 94% of degradation efficiency for phenolic substances (phenol and 4-chlorophenol) and antibiotics (tetracycline and sulfadiazine) in 5 min over a wide initial pH range of 4.0−9.0, respectively. The correlative quenching experiments and electronic paramagnetic resonance tests verified the existence of multiple reactive oxygen species ( 1 O 2 , SO 4•− , HO • , and O 2 •− ), whereas 1 O 2 that originated from PMS self-decomposition and O 2•− conversion played the most important role in the degradation processes. Overall, this study provides a prospect for the industrial application of 3D bimetallic materials based on PMS activation in wastewater treatment.

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Porous 0D/3D NiCo2O4/g-C3N4 accelerate emerging pollutant degradation in PMS/vis system: Degradation mechanism, pathway and toxicity assessment

Cited by 125 publications

References 47 publications

Activation of Peroxymonosulfate Using Secondary Pyrolysis Oil-Based Drilling Cuttings Ash for Pollutant Removal

Activation of Peroxymonosulfate Using Secondary Pyrolysis Oil-Based Drilling Cuttings Ash for Pollutant Removal

Graphitic Carbon Nitride-Based Composite in Advanced Oxidation Processes for Aqueous Organic Pollutants Removal: A Review

Graphene Oxide-Supported Three-Dimensional Cobalt–Nickel Bimetallic Sponge-Mediated Peroxymonosulfate Activation for Phenol Degradation

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