An Hyung Jun, Park Jong Min, Khan Nazmul Abedin, Jhung Sung Hwa
Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea.
Beilstein J Nanotechnol. 2020 Apr 8;11:597-605. doi: 10.3762/bjnano.11.47. eCollection 2020.
Polyaniline-derived carbon (PDC) was obtained via pyrolysis of polyaniline under different temperatures and applied for the purification of water contaminated with dye molecules of different sizes and charge by adsorption. With increasing pyrolysis temperature, it was found that the hydrophobicity, pore size and mesopore volume increased. A mesoporous PDC sample obtained via pyrolysis at 900 °C showed remarkable performance in the adsorption of dye molecules, irrespective of dye charge, especially in the removal of bulky dye molecules, such as acid red 1 (AR1) and Janus green B (JGB). For example, the most competitive PDC material showed a value (maximum adsorption capacity) 8.1 times that of commercial, activated carbon for AR1. The remarkable adsorption of AR1 and JGB over KOH-900 could be explained by the combined mechanisms of hydrophobic, π-π, electrostatic and van der Waals interactions.
通过在不同温度下对聚苯胺进行热解获得了聚苯胺衍生碳（PDC），并将其用于通过吸附作用净化被不同尺寸和电荷的染料分子污染的水。研究发现，随着热解温度的升高，疏水性、孔径和中孔体积增加。通过在900℃下热解获得的介孔PDC样品在染料分子吸附方面表现出显著性能，与染料电荷无关，尤其在去除大分子染料分子方面，如酸性红1（AR1）和健那绿B（JGB）。例如，最具竞争力的PDC材料对AR1的 值（最大吸附容量）是商用活性炭的8.1倍。AR1和JGB在KOH - 900上的显著吸附可以通过疏水、π-π、静电和范德华相互作用的联合机制来解释。
