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DOI	10.1016/j.atmosenv.2021.118436
	Dissolution factors and oxidative potential of acid soluble irons from chlorite mineral particles
	Xie T.; Lu S.; Rao L.; Zhang L.; Wang X.; Wang W.; Wang Q.
发表日期	2021
ISSN	1352-2310
卷号	255
英文摘要	Soluble irons from aerosol particles play a key role in assessment of biological and toxicological effects as a result of their oxidative potential. Several factors are responsible for controlling the solubility of irons released from aerosol mineral particles in acid solution. Here, factors of H+ concentrations, temperatures, solid–liquid ratios and particle sizes on acidsoluble irons from chlorite mineral particles were investigated in 48h. Our data demonstrated that the higher acidity, higher temperature, lower solid–liquid ratio, and smaller particle size were factors that positively influenced the solubility of FeT and Fe(II), and that the higher acidity, lower temperature, higher solid–liquid ratio, and smaller particle size positively improved the solubility of Fe(III). Fe(II) dissolved more easily than Fe(III) in the acid solution under all conditions; the percentage of Fe(III) among the total iron released from chlorite particles could be promoted by increasing the acidity, solid–liquid ratio, and particle size, or by lowering the temperature. In this acidolysis process, there is a clear order of importance of these influencing factors, H+ concentrations > particle sizes > temperatures and solid–liquid ratios. In addition, the dissolution data for FeT at pH = 0.7 and pH = 1 in 48 h could be well described and predicted by non-linear fitting with r2 > 0.99 according to continuous dissolution model. And the analysis of oxidative potential showed that Fe(II) dissolved from chlorite possessed a dominant position in generating reactive oxygen species. © 2021 Elsevier Ltd
关键词	Acidsoluble irons Chlorite mineral particles Continuous dissolution model Oxidative potential Particle size Reactive oxygen species
语种	英语
scopus关键词	Aerosols; Dissolution; Dissolved oxygen; Iron compounds; Liquids; Minerals; Particle size analysis; Solubility; Acid solutions; Acidsoluble iron; Chlorite mineral particle; Continuous dissolution model; Mineral particles; Oxidative potential; Particles sizes; Reactive oxygen species; Solid-liquid ratio; Soluble irons; Particle size; ferric ion; ferrous ion; iron; aerosol; dissolution; iron; low temperature; numerical model; oxidation; reactive oxygen species; toxicology; acidity; Article; controlled study; dissolution; energy dispersive X ray spectroscopy; nonhuman; oxidation reduction potential; particle size; pH; priority journal; scanning electron microscopy; solubility; temperature; transmission electron microscopy
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248416
作者单位	School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China; School of Science and Engineering, Saitama University, Saitama, 338-8570, Japan
推荐引用方式 GB/T 7714	Xie T.,Lu S.,Rao L.,et al. Dissolution factors and oxidative potential of acid soluble irons from chlorite mineral particles[J],2021,255.
APA	Xie T..,Lu S..,Rao L..,Zhang L..,Wang X..,...&Wang Q..(2021).Dissolution factors and oxidative potential of acid soluble irons from chlorite mineral particles.ATMOSPHERIC ENVIRONMENT,255.
MLA	Xie T.,et al."Dissolution factors and oxidative potential of acid soluble irons from chlorite mineral particles".ATMOSPHERIC ENVIRONMENT 255(2021).