A new chalcogenide ion-exchanging material: Porous indium sulfide built from condensed [In(10)S(18)](6-) T3 supertetrahedral clusters

作者：Su Zhe; Li Xingliang; Lan Ying; Wen Jintang; Jin Guangming; Xie Jiali; Zheng Chong^*; Jin Jun; Li Shoujian

来源：Materials Letters, 2008, 62(17-18): 2802-2805.

DOI：10.1016/j.matlet.2008.01.051

• indium sulfide
• crystal structure
• porosity
• ion exchange

A new open framework indium sulfide, In(10)S(18)[(H(2)O)(4)(C(6)H(18)N(4)H(2))(1.5)(C(6)H(18)N(4)H(3))] (SCU-1), has been synthesized under hydrothermal conditions. X-ray diffraction (XRD), infrared spectra (IR), scanning electron microscope (SEM), thermogravimetric analysis (TGA) and elemental analysis were employed for the characterization of SCU-1. The resultant crystallizes in the tetragonal space group P4(1)2(1)2 (No. 92) with a=b=19.702(2) angstrom, c=31.509(5) angstrom, V= 12,231(3) angstrom(3), and Z=8. The crystal framework has a large pore volume of more than 51%. The charge balance of the anionic framework [In(10)S(18)](6-) is maintained by the template cations in the cavity spaces. The framework remained at higher crystallinity after about 90% of the extra-framework amines were removed by exchanging with K(+). The as-synthesized material can undergo ion exchange with various metal cations in the selectivity series as Cu(2+) > Cr(3+) > Cs(+) > Zn(2+) > CO(2+) > Sr(2+) > Mn(2+) with the total ion exchange capacity (IEC) of 0.59 mmol/g.

• 出版日期2008-6-30
• 单位四川大学