水钠锰矿介导下晴隆锑矿区黄壤中锑形态的转化-岩石矿物学杂志-CSCIED科技核心评价数据库-手机版

水钠锰矿介导下晴隆锑矿区黄壤中锑形态的转化

Transformation of antimony speciation in the yellow soil of Qinglong antimony mine induced by δ-MnO₂

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DOI	10.20086/j.cnki.yskw.2024.0416
刊名	岩石矿物学杂志 Acta Petrologica et Mineralogica
年，卷(期)	2024, 43(4)
作者	刘玉蛟，朱霞萍*，崔婷，任维，赵平,
作者单位	1. 成都理工大学材料与化学化工学院(锂资源与锂电产业学院), 四川成都 610059; 2. 贵州省地质矿产勘查开发局105地质大队, 贵州贵阳 550018
摘要	采用原位制备的方式在贵州晴隆矿区黄壤上负载0.015%、0.025%、0.05%和0.1%的水钠锰矿(δ-MnO₂),淹水20 d后,测定悬浮液中锰和锑的含量和黄壤中各形态锰与各形态锑的含量,并进行各参数的相关性分析,以明确锰氧化物及其形态对锑矿区黄壤中锑形态的影响。结果表明,随着载锰量增加,悬浮液中锰、黄壤中各形态锰含量逐渐增加,各形态锰含量大小顺序与对照土壤(CK)一致。随着载锰量的增加,黄壤中非专性吸附态锑、专性吸附态锑、残渣态锑含量下降,铁锰铝氧化物结合态锑含量增加。载锰量与各形态锰均呈显著正相关(P<0.05),与铁锰铝氧化物结合态锑、残渣态锑分别呈显著正相关(P<0.05)和显著负相关(P<0.1);铁锰铝氧化物结合态锑、残渣态锑与各形态锰分别呈显著正相关(P<0.05)和显著负相关(P<0.1)。负载的δ-MnO₂以多种形式存在于黄壤中,淹水状态下存在形态发生不同程度的转化,各形态锰与锑发生氧化、吸附、络合反应,使土壤中非专性吸附态锑、专性吸附态锑和残渣态锑向铁锰铝氧化物结合态锑转化。
Abstract	0.015%, 0.025%, 0.05% and 0.1% δ-MnO₂ were added to yellow soil of Guizhou Qinglong antimony mine by in-situ processing. After 20 days of flooding, the content of Mn and Sb in suspension and the content of each speciation of Mn and Sb in soil were determined, and the correlation analysis of each parameter were performed to clarify the effect of Mn oxides on the speciations of Sb. The results showed that the contents of Mn in suspension and three speciations of Mn in soil gradually increased with the increase of δ-MnO₂, and the order of Mn content of all speciations in soil was consistent with that in control soil. With the increase of δ-MnO₂, the contents of non-specific adsorption, specific adsorption and residual Sb decreased, while the content of Fe/Mn/Al oxide bound Sb increased. The Mn loading was significant positive correlation with all speciations of Mn and Fe/Mn/Al oxide bound Sb (P<0.05), and significant negative correlation (P<0.1) with residual Sb. Fe/Mn/Al oxide bound Sb and residual Sb were significant positive correlation (P<0.05) and negative correlation (P<0.1) with all speciations of Mn, respectively. δ-MnO₂ existed in various speciations in yellow soil. After flooding, the speciations of Mn transformed to different degrees, and various speciations of Mn were oxidized, adsorbed and complexed with Sb, which made the non-specific adsorption Sb, specific adsorption Sb and residual Sb transform to Fe/Mn/Al oxide bound Sb in soil.
关键词	黄壤；δ-MnO₂；锑形态；锰形态
KeyWord	yellow soil; δ-MnO₂; antimony speciations; manganese speciations
基金项目
页码	1005-1011

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刘玉蛟，朱霞萍*，崔婷，任维，赵平. 水钠锰矿介导下晴隆锑矿区黄壤中锑形态的转化 [J]. 岩石矿物学杂志. 2024; 43; (4). 1005 - 1011.

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