几种不同的石墨烯介导高砷沉积物中砷/铁形态赋存及转化

来源 :全国环境纳米技术及生物效应学术研讨会 | 被引量 : 0次 | 上传用户:michaelwf
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  石墨烯在工业生产中的广泛应用使其备受关注,其在环境介质中的存在将影响到污染物的迁移、转化以及归趋等环境行为。本研究考察了几种不同的石墨烯:还原氧化石墨烯(rGO),氧化石墨烯(GO)及导电石墨烯(CG)在厌氧淹水环境下对高砷沉积物中As(V)和Fe(III)的形态赋存及迁移变化。结果表明:在50 天的培养过程中,rGO 能显著地促进As(V)和Fe(III)的生物还原,而在前35 天的培养过程中CG 和GO 对As(V)和Fe(III)并无显著的还原促进影响,35 天后开始有较显著的促进迹象。
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