Inorganic–organic hybrid sorbent for aromatic desulfurization of hydrocarbons: regenerative adsorption based on a charge-transfer complex
作者:Mahsa Armaghan、Mostafa M. Amini、Hamid R. Khavasi、Wen-Hua Zhang、Siek Weng Ng
DOI:10.1039/c6ra17453a
日期:——
produces a hybrid material with the capability of adsorbing only aromatic DBT and 4,6-DMDBT rather than anthracene, naphthalene and xylene. In contrast, 1,5-dichloroanthraquinone and 1,5-dicyanoanthraquinone neither produce a CTC nor adsorb DBT, 4,6-DMDBT, anthracene, naphthalene and xylene after they are grafted on Si-MCM-41. This study proves that the hybrid material prepared from mesoporous silica and
通过用9,10-蒽醌衍生物官能化介孔二氧化硅,制备了一系列新的无机-有机杂化材料作为吸附二苯并噻吩(DBT)和4,6-二甲基二苯并噻吩(4,6-DMDBT)的吸附剂。通过 13 C和29 Si交叉极化幻角固态核磁共振(CP-MAS NMR),FTIR光谱,粉末X射线衍射(PXRD)和热分析(TGA-DTA)对选定的吸附剂进行了全面表征。制备的材料用于吸附来自C 7的DBT和4,6-DMDBT在环境条件下的碳氢化合物。结果表明,通过介孔二氧化硅与9,10-二氧代-5-((3-(三乙氧基甲硅烷基)-丙基)氨基)-1,5-二氯-4,8-二硝基蒽醌官能化制备的杂化材料是有效的。和可再生吸附剂通过π-π相互作用吸附DBT和4,6-DMDBT。为了证明DBT和4,6-DMDBT通过π-π相互作用的吸附,制备了1,5-二氯-4,8-二硝基蒽醌和4,6-DMDBT的电荷转移络合物(CTC),并进行了FT表征-IR,1