Organic-inorganic based nano-conjugate adsorbent for selective palladium(II) detection, separation and recovery

有機-無機ナノ複合型吸着剤による選択的パラジウム(II)検出、分離回収

Awual, M. R.; Hasan, M. M.*; Znad, H.*

Awual, M. R.; Hasan, M. M.*; Znad, H.*

The functional group containing organic ligand was developed and then successfully anchored onto mesoperous silica for the preparation of nano-conjugate adsorbent. After fabrication, the ligand kept open functionality for capturing Pd(II) under optimum conditions. The adsorbent exhibited the distinct color formation after adding the Pd(II) ions both in solid and liquid states. The base metal of Cu(II) and Zn(II) did not hamper the Pd(II) sorption ability of adsorbent in the acidic pH region. Therefore, it was expected that the Pd(II) could be separated from other hard metal ions by the adsorbent. Therefore the proposed adsorbent can be considered as a potential candidate for Pd(II) capturing from waste samples.