Enhancement of photoelectrocatalytic degradation of diclofenac with persulfate activated by Cu cathode

Liu, Shanshan; Zhao, Xu; Zeng, Huabin; Wang, Yanbin; Qiao, Meng; Guan, Wei

doi:10.1016/j.cej.2017.03.047

Cited by 85 publications

(16 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The study conducted by Wang and Bai (2017) found that in ozonation process which is an efficient oxidation process for degradation of pesticides, the formation of OH• by Fe-based catalysts can improve O3 decomposition. These findings were in alignment with the study by Liu, Zhao et al (2017) According to t -HCH was the most persistent pesticide in the reactor while the four other pesticides could -HCH, pentachlorobenzene, alachlor, diuron, and isoproturon were 64.8, 94.5, 97, 96.9 and 91.6%, respectively. In another study, the bimetallic silver/copper nanoparticles using Carica papaya (Ag/Cu-papaya) were synthesized by Rosbero and Camacho (2017) for chlorpyrifos removal from synthetic wastewater.…”

Section: Removal Of Pesticides By Advanced Oxidation Processes (Aops)supporting

confidence: 90%

Fate of Environmental Pollutants

Zad

Astuti

Padhye

2018

Water Environment Research

View full text Add to dashboard Cite

This annual review covers the literature published in 2017 on topics related to the occurrence and fate of emerging environmental pollutants in wastewater. Due to the vast amount of literature published on this topic, we have discussed only a portion of the quality research publications, due to the limitation of space. The abstract search was carried out using Web of Science, and the abstracts were selected based on their relevance. In few cases, full-text articles were referred to better understand new findings. This review is divided into the following sections: antibioticresistant bacteria (ARBs) and antibiotic-resistant genes (ARGs), disinfection by-products (DBPs), estrogens, pesticides, pharmaceuticals and personal care products (PPCPs), and microplastics, a new section added this year.

show abstract

Section: Removal Of Pesticides By Advanced Oxidation Processes (Aops)supporting

confidence: 90%

Fate of Environmental Pollutants

Zad

Astuti

Padhye

2018

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…Phenylacetic acid structure on DCF might be attacked by SO 4 c À resulting in the transfer of an electron from aromatic ring to sulfate radical, and subsequently a -COOH group could be removed from this structure via intramolecular electron transfer producing a decarboxylation product m/z 252 (2-(2 0 ,6 0 -dichlorphenylamino)methylbenzene). 48 This product was also detected by Zhao et al 49 and Liu et al 50 in DCF degradation using ferrate(VI) and photoelectrocatalytic system, respectively. (iii) Formylation (pathway (3) in Scheme 1) might result from the oxidation of the methyl group in the product m/z 252 leading to the formation of the product m/z 266 (2-(2 0 ,6 0 -dichlorophenylamino)benzaldehyde).…”

Section: Degradation Mechanism Of Dcf By Hapmentioning

confidence: 57%

Kinetics and pathways of diclofenac degradation by heat-activated persulfate

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Shan has studied the degradation of DCF in a Fenton like system, FeCeO x -H 2 O 2 in detail, and the reaction rate constant of DCF degradation was 0.073 min −1 [48]. Liu has found that the rate constant of DCF (initial concentration was 10 mg L −1 ) degradation was 1.0498 h −1 in a Bi 2 MoO 6 /Cu/PEC/PS system [49]. Horiya has reported the degradation of DCF (the initial concentration was 10 mg L −1 ) with mont-La(6%)-Cu 0.6 Cd 0.4 S under NUV-Vis irradiation, and the removal of DCF was ca.…”

Section: Photocatalytic Activity Of the Ag 3 Po 4 /G-c 3 N 4 Compositesmentioning

confidence: 99%

Synthesis of Ag3PO4/G-C3N4 Composite with Enhanced Photocatalytic Performance for the Photodegradation of Diclofenac under Visible Light Irradiation

et al. 2018

View full text Add to dashboard Cite

Abstract:A new visible-light-driven heterojunction Ag 3 PO 4 /g-C 3 N 4 was prepared by a simple deposition-precipitation method for the degradation analysis of diclofenac (DCF), a model drug component, under visible-light irradiation. The heterojunction photocatalysts were characterized by a suite of tools. The results revealed that the introduction of Ag 3 PO 4 on the surface of g-C 3 N 4 greatly promoted its stability and light absorption performance. In addition, the effects of the heterojunction mixing ratios were studied, when the molar ratio of Ag 3 PO 4 to g-C 3 N 4 in the composite was 30%, the as-prepared photocatalyst Ag 3 PO 4 /g-C 3 N 4 (30%) possessed the best photocatalytic activity toward the photodegradation of DCF, and the optimal photocatalyst showed a DCF degradation rate of 0.453 min −1 , which was almost 34.8 and 6.4 times higher than those of pure g-C 3 N 4 (0.013 min −1 ) and Ag 3 PO 4 (0.071 min −1 ) under visible light irradiation (λ ≥ 400 nm). The trapping experimental results showed that h + , ·OH, and ·O 2 − were the main reactive oxygen species during the photocatalytic reaction. The improved performance of the composites was induced by the high charge separation efficiency of the photogeneration electron-hole pairs as well as the surface plasmon resonance (SPR) endowed in the Ag 0 nanoparticles, and ultimately enhanced the DCF photodegradation.

show abstract

Enhancement of photoelectrocatalytic degradation of diclofenac with persulfate activated by Cu cathode

Abstract: h i g h l i g h t s Photoelectro-oxidation of diclofenac was largely enhanced with persulfate addition. Cu 2 O was identified at copper cathode by in situ Raman technique. Activation mechanism of persulfate to SO 4 ÅÀ at copper cathode was proposed.

Cited by 85 publications

References 50 publications

Fate of Environmental Pollutants

Fate of Environmental Pollutants

Kinetics and pathways of diclofenac degradation by heat-activated persulfate

Synthesis of Ag3PO4/G-C3N4 Composite with Enhanced Photocatalytic Performance for the Photodegradation of Diclofenac under Visible Light Irradiation

Contact Info

Product

Resources

About