Sustainable Conversion of Mixed Plastics into Porous Carbon Nanosheets with High Performances in Uptake of Carbon Dioxide and Storage of Hydrogen
Sustainable Conversion of Mixed Plastics into Porous Carbon Nanosheets with High Performances in Uptake of Carbon Dioxide and Storage of Hydrogen
复制标题
混合塑料可持续转化为具有高性能吸收二氧化碳和储存氢气的多孔碳纳米片
DOI：
10.1021/sc500603h
复制
发表时间：
2014-12-01
影响因子：
8.4
通讯作者：
Tang, Tao
中科院分区：
文献类型：
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作者：
Gong, Jiang;Michalkiewicz, Beata;Tang, Tao
随着可持续发展的要求和废塑料产量的不断增加，将废塑料转化为高附加值的碳纳米材料已引起广泛的研究兴趣。然而，大多数研究仅限于单组分塑料，此外，很少有人关注碳纳米片（CNS）。本文以有机改性蒙脱土为载体，通过催化碳化聚丙烯、聚乙烯、聚苯乙烯、聚对苯二甲酸乙二醇酯和聚氯乙烯共混塑料制备了碳纳米管。在KOH活化后，产生多孔CNS（PCNS）。研究了PCNS的形貌、微观结构、相结构、织构性能、表面元素组成和热稳定性。PCNS包含随机取向的晶格条纹，并显示出分层的形态组成的薄，叶状，团聚的纳米片，从数百纳米到几个微米的长度。此外，PCNS还具有较高的比表面积。
Conversion of waste plastics into high value-added carbon nanomaterials has gained wide research interest due to the requirement of sustainable development and the ever-increasing generation of waste plastics. However, most of studies are limited to single component plastic; besides, little attention has been paid to carbon nanosheets (CNS). Herein, CNS were prepared by catalytic carbonization of mixed plastics consisting of polypropylene, polyethylene, polystyrene, poly(ethylene terephthalate), and polyvinyl chloride on organically modified montmorillonite. After KOH activation, porous CNS (PCNS) were produced. The morphology, microstructure, phase structure, textural property, surface element composition, and thermal stability of PCNS were investigated. PCNS contained randomly oriented lattice fringes and showed a layered morphology consisting of thin, leaf-like, agglomerated nanosheets ranging from hundreds of nanometers to several micrometers in length. Besides, PCNS exhibited high specific surface ar...