A Novel Designed Ligands of ۴,۴,۶',۶'-Tetramethyl-۳'-aryl-۳',۵',۶',۷'-tetrahydrospiro[cyclohexane-۱,۲'-indole]-۴',۶(۱'H)-diones for Metal Cations Removal from Water and Wastewater

Water is the main pillar of human life, which experiencing widespread pollutions that turn clean waters to a non consumption form gradually. Contaminating resources of the clean waters are the human and industries have been made by the human. Because the available water resources for humans and organisms are limited, we must seek recovery of contaminated waters. Some novel oxime and azo dye-based compounds from spiro dihydrofurans were synthesized. All structures were characterized by IR, ۱H, and ۱۳C NMR spectroscopy techniques. Some pollutant metal cations of Ni۲+, Cu۲+, Co۲+, Mn۲+, and Zn۲+ in water and industrial wastewater were examined in the presence of novel ligands. The UV-visible spectral data indicated that ۴a selectively absorbed Ni۲+ at room temperature and natural pH conditions. Instead, ۴b absorbed all cations with exception of Ni۲+ under the same condition.

کلیدواژه ها:

pollution ، Wastewater ، Organic ligand ، Metal cation ، ۲ ، ۴-Dinitro phenylhydrazone ، Oxime ، Thiosemicarbazone