2D amorphous MoS3 nanosheets with porous network structures for scavenging toxic metal ions from synthetic acid mine drainage
2D amorphous MoS3 nanosheets with porous network structures for scavenging toxic metal ions from synthetic acid mine drainage
复制标题
具有多孔网络结构的二维非晶MoS3纳米片，用于清除合成酸矿山排水中的有毒金属离子
DOI：
10.1039/c9ta05861c
复制
发表时间：
2019-08-28
影响因子：
11.9
通讯作者：
Huang, Zhiqiang
中科院分区：
文献类型：
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作者：
Fu, Weng;Yang, Siyuan;Huang, Zhiqiang
这是第一次，二维（2D）的非晶MoS3纳米片制备的剥离块体非晶MoS3材料在二甲基甲酰胺（DMF）溶剂在超声辐射下。所得的二维非晶MoS3纳米片显示出独特的多孔网络结构，这与二维晶态MoS2纳米片的结构有很大不同。XPS和拉曼光谱结果表明，二维非晶MoS3纳米片结构中含有大量的不饱和硫键，表明该材料可以作为一种高效的重金属清除剂应用于环境修复领域.讨论了金属离子与二维非晶态MoS3纳米片上特定硫化物基团的相互作用机理。有毒金属（铜，镉和汞）修复的可行性，从合成的酸性矿山废水解决方案已被证明。研究结果表明，二维非晶MoS3纳米片作为二维材料家族的新成员，在环境保护方面具有广阔的应用前景。
This is the first time that two-dimensional (2D) amorphous MoS3 nanosheets were prepared by the exfoliation of the bulk amorphous MoS3 material in dimethylformamide (DMF) solvent under ultrasonic irradiation. The obtained 2D amorphous MoS3 nanosheets show a unique porous network structure, which is quite different from that of 2D crystalline MoS2 nanosheets. The XPS and Raman results reveal that the structure of 2D amorphous MoS3 nanosheets contains high levels of active sulphide groups with unsaturated bonds, suggesting that this material can be applied as an efficient heavy metal scavenger in the field of environmental remediation. The interaction mechanisms between metal ions and specific sulphide groups on 2D amorphous MoS3 nanosheets have been discussed. The feasibility of toxic metal remediation (Cu, Cd and Hg) from a synthetic acid mine drainage solution has been proven. The results suggest that 2D amorphous MoS3 nanosheets as a new member of the 2D material family will have promising applications in environmental protection.