Influence of catalyst zeta potential on the activation of persulfate.

The effect of the zeta potential of nano zero-valent iron (nZVI) and carbocatalyst on the activation of persulfate was investigated. The oxidation experiments were performed on three different compounds, with variously modified nZVI and three distinct carbocatalysts. From the obtained results, an evident linear correlation between nanoparticles' zeta potential and reaction rate constants of these three compounds oxidation may be observed. This phenomenon is not mechanism-specific and occurs for the radical and non-radical processes. The present work indicates the critical influence of the surface charge of nZVI and carbocatalysts on the persulfate catalytic activation.

[1]  Ming Yan,et al.  Activation of persulfates by carbonaceous materials: A review , 2021 .

[2]  D. Silvestri,et al.  Modification of nZVI with a bio-conjugate containing amine and carbonyl functional groups for catalytic activation of persulfate , 2021 .

[3]  Zhicheng Tang,et al.  A strategy to construct uniform MOFs/PAN nanowire derived bead-like Co3O4 for VOC catalytic combustion. , 2020, Chemical communications.

[4]  Erdeng Du,et al.  Metal-free carbocatalysis for persulfate activation toward nonradical oxidation: Enhanced singlet oxygen generation based on active sites and electronic property , 2020 .

[5]  J. Parquette,et al.  Self-assembly of a robust, reduction-sensitive camptothecin nanotube. , 2020, Chemical communications.

[6]  D. Silvestri,et al.  Synthesis of Ag nanoparticles by a chitosan-poly(3-hydroxybutyrate) polymer conjugate and their superb catalytic activity. , 2020, Carbohydrate Polymers.

[7]  Qinglong Liu,et al.  A novel stabilized carbon-coated nZVI as heterogeneous persulfate catalyst for enhanced degradation of 4-chlorophenol. , 2020, Environment international.

[8]  G. Henkelman,et al.  Sulfur Loading and Speciation Control the Hydrophobicity, Electron Transfer, Reactivity, and Selectivity of Sulfidized Nanoscale Zerovalent Iron , 2020, Advanced materials.

[9]  D. O’Carroll,et al.  Carboxymethyl cellulose stabilized and sulfidated nanoscale zero-valent iron: Characterization and trichloroethene dechlorination , 2020 .

[10]  Shaobin Wang,et al.  Insights into the Electron-Transfer Regime of Peroxydisulfate Activation on Carbon Nanotubes: The Role of Oxygen Functional Groups. , 2019, Environmental science & technology.

[11]  Yaoyu Zhou,et al.  Activation of persulfate by stability-enhanced magnetic graphene oxide for the removal of 2,4-dichlorophenol. , 2019, The Science of the total environment.

[12]  P. Hrabák,et al.  Chemical oxidation and reduction of hexachlorocyclohexanes: A review. , 2019, Water research.

[13]  R. Tian,et al.  Activation of persulfate and hydrogen peroxide by using sulfide-modified nanoscale zero-valent iron for oxidative degradation of sulfamethazine: A comparative study , 2019, Separation and Purification Technology.

[14]  B. Lai,et al.  Degradation of tetracycline by peroxymonosulfate activated with zero-valent iron: Performance, intermediates, toxicity and mechanism , 2019, Chemical Engineering Journal.

[15]  M. Kudo,et al.  Synthesis of zero-valent iron nanoparticles via laser ablation in a formate ionic liquid under atmospheric conditions. , 2018, Chemical communications.

[16]  Jin-Zhi Du,et al.  The effect of surface charge on oral absorption of polymeric nanoparticles. , 2018, Biomaterials science.

[17]  W. Shin,et al.  Activation of Persulfate by Nanosized Zero-Valent Iron (NZVI): Mechanisms and Transformation Products of NZVI. , 2018, Environmental science & technology.

[18]  S. Wacławek,et al.  Chemistry of persulfates in water and wastewater treatment: A review , 2017 .

[19]  M. Antonietti,et al.  Active sites on graphene-based materials as metal-free catalysts. , 2017, Chemical Society reviews.

[20]  Mehdi Ahmadi,et al.  Synthesis of chitosan zero-valent iron nanoparticles-supported for cadmium removal: Characterization, optimization and modeling approach , 2017 .

[21]  S. Wacławek,et al.  Gum karaya (Sterculia urens) stabilized zero-valent iron nanoparticles: characterization and applications for the removal of chromium and volatile organic pollutants from water , 2017 .

[22]  Shaoling Li,et al.  Heavy metal removal using nanoscale zero-valent iron (nZVI): Theory and application. , 2017, Journal of hazardous materials.

[23]  C. Palocci,et al.  Enhancement of stability and reactivity of nanosized zero-valent iron with polyhydroxybutyrate , 2017 .

[24]  Q. Zhang,et al.  Degradation of carbamazepine and toxicity evaluation using the UV/persulfate process in aqueous solution , 2015 .

[25]  M. Jamei,et al.  A novel ultrasound assisted method in synthesis of NZVI particles. , 2014, Ultrasonics sonochemistry.

[26]  Soojin Park,et al.  Chapter 1 – Intermolecular Force , 2011 .

[27]  Weile Yan,et al.  Solvent-free production of nanoscale zero-valent iron (nZVI) with precision milling , 2009 .

[28]  N. Berge,et al.  Oil-in-water emulsions for encapsulated delivery of reactive iron particles. , 2009, Environmental science & technology.

[29]  Paul G Tratnyek,et al.  Oxidation of chlorinated ethenes by heat-activated persulfate: kinetics and products. , 2007, Environmental science & technology.

[30]  Dongye Zhao,et al.  Preparation and characterization of a new class of starch-stabilized bimetallic nanoparticles for degradation of chlorinated hydrocarbons in water. , 2005, Environmental science & technology.

[31]  Paul G Tratnyek,et al.  Characterization and properties of metallic iron nanoparticles: spectroscopy, electrochemistry, and kinetics. , 2005, Environmental science & technology.

[32]  Thomas E. Mallouk,et al.  Delivery Vehicles for Zerovalent Metal Nanoparticles in Soil and Groundwater , 2004 .

[33]  Wei-xian Zhang,et al.  Synthesizing Nanoscale Iron Particles for Rapid and Complete Dechlorination of TCE and PCBs , 1997 .