Sodium Alginate/Sulfide Coated Iron Nanoparticles for the Persulfate Activated Degradation of Tetrabromobisphenol a in Soil: Performance, Mechanism and Impacts on the Soil System

Author:

Yuan Xuehong,Li Taolue,Xue Nandong,Sun Meizhen,Hua Jie

Publisher

Elsevier BV

Subject

General Earth and Planetary Sciences,General Environmental Science

Reference63 articles.

1. The loadings of SA/sulfide and operational parameters were optimized for the SA@S-Fe NPs activated PS degradation of TBBPA in soil. The degradation of TBBPA approximated to pseudo-first order kinetics reaching a maximum value of 94.32% (k = 0.23h -1 ) at 25 ? after 12h under optimum conditions. RSM optimization indicated that a theoretical maximum degradation efficiency of 99.79% at the 34.28?, SA@S-Fe NPs and PS additions of 3.57 g kg -1 and 36.35 mM, respectively. The main species involved in the degradation of TBBPA by the SA@S-Fe NPs/PS system was SO 4 �? , �HO, and O 2 �? . Proposed mechanisms for the degradation of TBBPA in soil involved the radical ion attacked C-Br bond cleavage and C atoms in the middle to cause C-C bond oxidative cleavage eventual mineralization. Oxidative degradation increased the number of clay particles while reducing debris in the soil; it had no significant effect on the minerals and metals, thereby maintaining the original soil fertility. The SA@S-Fe NPs/PS system represents a green, sustainable and cost-effective AOP for the remediation of TBBPA contaminated soil;J. Saudi. Chem. Society,2021

2. Recent trends in advanced oxidation process-based degradation of erythromycin: Pollution status, eco-toxicity and degradation mechanism in aquatic ecosystems;A Ashraf;Sci. Total. Environ,2021

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4. Entrapment of iron nanoparticles in calcium alginate beads for groundwater remediation applications;A N Bezbaruah;J. Hazard. Mater,2009

5. Degradation of atrazine and structurally related s-triazine herbicides in soils by ferrous-activated persulfate: Kinetics, mechanisms and soil-types effects;L Chen;Chem. Eng. J,2018

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