Publications by authors named "Jiana Jing"

Peroxymonosulfate-based electrochemical advanced oxidation processes (PMS-EAOPs) have great potential for sustainable water purification, so an in-depth understanding of its catalytic mechanism is imperative to facilitate its practical application. Herein, the performance enhancement and mechanism of electroenhanced PMS activation by single-atom Fe catalyst modified carbon felt was investigated. Compared with the anode, the cathode exhibited faster bisphenol A degradation ( = 0.

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Low HO production, narrow adaptive pH range and slow Fe(II) regeneration on the cathode still limit efficiency of electro-Fenton (EF) and its application. Herein, we designed a bifunctional catalyst with FeS and FeO nanoparticles dispersed on porous carbon (CFeS@C) using template of sodium alginate (SA)/FeSO hydrogel mixed with carbon black (CB), which presented high HO generation efficiency and outstanding tetracycline degradation efficiency under wide pH ranges (3-8) with a low energy consumption of 19.6 kWh/kg total organic carbon (TOC).

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It is critical to discover a non-noble metal catalyst with high catalytic activity capable of replacing palladium in electrochemical reduction. In this work, a highly efficient single-atom Co-N/C catalyst was synthesized with metal-organic frameworks (MOFs) as a precursor for electrochemical dehalogenation. X-ray absorption spectroscopy (XAS) revealed that Co-N/C exhibited a Co-N configuration, which had more active sites and a faster charge-transfer rate and thus enabled the efficient removal of florfenicol (FLO) at a wide pH, achieving a rate constant 3.

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Traditional free radicals-dominated electrochemical advanced oxidation processes (EAOPs) and sulfate radical-based advanced oxidation processes (SR-AOPs) are limited by pH dependence and weak reusability, respectively. To overcome these shortcomings, electro-enhanced activation of peroxymonosulfate (PMS) on a novel perovskite-TiO composite anode (E-PTi-PMS system) was proposed. It achieved an ultra-efficient removal rate (k = 0.

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To improve the performance and solve the restrictions of UV/chlorine process (e.g., the narrow pH application range and high disinfection by-products (DBPs) formation), a Fe assisted advanced oxidation process with electrochemically generated chlorine (UV/E-Cl/Fe) was proposed for carbamazepine (CBZ) degradation, which eliminated CBZ (5 mg/L) within 4 min under the optimal conditions.

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Although it can effectively degrade refractory organic pollutants, advanced oxidation processes (AOPs) can be seriously interfered with the co-existing substance in salinity water. Herein, three-dimensional hierarchical cobalt-doped LaFeO perovskites (LaCoFeO) micron spheres composed of nano-rods were hydrothermally synthesized and applied to activate peroxymonosulfate (PMS) for degrading bisphenol A (BPA). Nearly 100% BPA was removed by LaCoFeO/PMS system in presence of more than 50 mM Cl within only 2 min compared that of 30 min without Cl, which was attributed to reactive chlorine species (RCS) including Cl and HOCl with higher oxidation capacity.

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Ageing process can significantly alter the structural properties, environmental behaviors and potential ecotoxicity of microplastics (MPs) in water. In this study, the structural properties of aged polystyrene (PS) MPs being exposed to UV/HO, UV/HO and UV/Cl artificially accelerated oxidation processes and related sorption behaviors of bisphenol A (BPA) on those virgin/aged PS were investigated. The surface oxidation and hydrophilicity of aged PS were significantly increased according to infrared spectroscopy (IR) and water contact angle (CA) measurements.

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Selectively and effectively for removal of tetracycline (TC) and its related antibiotic resistance gene from food wastewater matrix with high-salt and high COD characteristics is highly desirable. In this work, novel schwertmannite/graphene oxide (SCH/GO) nanocomposites were synthesized through a facile oxidation-coprecipitation method. The SCH/GO nanocomposites were characterized by TEM, XRD, BET, PL, DRS, XPS and FTIR.

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