Effects of CH4 and CO2 on the sulfidization of goethite and magnetite: an in situ Raman spectroscopic study in high-pressure capillary optical cells at room temperature
Wang, Menghan1,2; Chou, I-Ming3; Lu, Wanjun1; De Vivo, Benedetto2
2015-03-01
发表期刊EUROPEAN JOURNAL OF MINERALOGY
卷号27期号:2页码:193-201
摘要Reactions of goethite and magnetite with sulfide solutions under CH4 and/or CO2 atmospheres were monitored in situ with Raman spectroscopy in the high-pressure capillary optical cells (HPOCs) at room temperature. Isolated systems were created in the enclosed HPOCs for the study of the mineral-solution interactions to prevent oxidation during the experiments. We observed that iron (oxyhydr)oxide minerals were inert to sulfide solution under CH4 atmosphere, and that the addition of CO2 to this system triggered the sulfidization reactions and produced iron monosulfide; mackinawite was identified in the solid phase immersed in the solution after six hours and pyrrhotite in the solid phase exposed to the vapor phase after 5 days. Mackinawite formed in the aqueous phase was metastable, and dissolved after about 10 days. The observed sulfidization of iron (oxyhydr)oxide minerals was through a replacement reaction rather than a dissolution-precipitation process.
文章类型Article
关键词Goethite Magnetite Sulfidization Sulfidation Mackinawite Pyrrhotite Methane Carbon Dioxide Raman Spectroscopy
WOS标题词Science & Technology ; Physical Sciences
DOI10.1127/ejm/2015/0027-2432
收录类别SCI
语种英语
关键词[WOS]HYDROGEN-SULFIDE ; PYRITE FORMATION ; AQUEOUS-SOLUTIONS ; IRON MINERALS ; SEDIMENTS ; REACTIVITY ; OXIDATION ; HYDRATE ; METHANE ; OXIDES
WOS类目Mineralogy
WOS记录号WOS:000353313000005
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/467
专题深海科学研究部_深海极端环境模拟研究实验室
作者单位1.China Univ Geosci, Dept Marine Sci & Engn, Wuhan 430074, Peoples R China
2.Univ Naples Federico II, Dipartimento Sci Terra Ambiente & Risorse, I-80134 Naples, Italy
3.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Peoples R China
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Wang, Menghan,Chou, I-Ming,Lu, Wanjun,et al. Effects of CH4 and CO2 on the sulfidization of goethite and magnetite: an in situ Raman spectroscopic study in high-pressure capillary optical cells at room temperature[J]. EUROPEAN JOURNAL OF MINERALOGY,2015,27(2):193-201.
APA Wang, Menghan,Chou, I-Ming,Lu, Wanjun,&De Vivo, Benedetto.(2015).Effects of CH4 and CO2 on the sulfidization of goethite and magnetite: an in situ Raman spectroscopic study in high-pressure capillary optical cells at room temperature.EUROPEAN JOURNAL OF MINERALOGY,27(2),193-201.
MLA Wang, Menghan,et al."Effects of CH4 and CO2 on the sulfidization of goethite and magnetite: an in situ Raman spectroscopic study in high-pressure capillary optical cells at room temperature".EUROPEAN JOURNAL OF MINERALOGY 27.2(2015):193-201.
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