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在铁氢氧化物有机矿物转化过程中,次级铁(氧氢)氧化物对五价锑 ...
本研究通过Sb K-edge XAS和Cs-STEM分析,揭示了Fe(OH)?在Sb(V)和有机质(FA)存在下向结晶性Fe(OH)?氧化物(如针铁矿和赤铁矿)转化的纳米机制,发现Sb(V)通过取代Fe3?六配位位点进入新相结构,而FA通过吸附和堵塞纳米孔隙抑制转化并促进赤铁矿形成,为锑污染土壤治理 ...
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