Synthesis, structure and photocatalysis properties of two 3D Isostructural Ln (III)-MOFs based 2, 6-Pyridinedicarboxylic acid. Issue 9 (September 2018)

• Record Type: Journal Article
• Authors: Zhang, Chenchen; Wei, Siyue; Sun, Lixian; Xu, Fen; Huang, Pengru; Peng, Hongliang
• Is Part Of: Journal of materials science & technology. Volume 34:Issue 9(2018)
• Page Start: 1526
• Page End: 1531
• Publication Date: 2018-09
• Subjects: Metal-organic frameworks -- Solvothermal method -- Photocatalysis performance; Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2018.03.011
• Languages: English
• ISSNs: 1005-0302

Abstract

Abstract: Two new 3D metal–organic frameworks (MOFs) named [Pr2 (PDA)3 ·3H2 O]·H2 O (1) and [Nd2 (PDA)3 ·3H2 O]·H2 O (2) [2, 6-Pyridinedicarboxylic acid (H2 PDA)] were synthesized by solvothermal method. They were characterized by elemental analyses (EA), infrared spectroscopy (FT-IR), thermogravimetric analysis (TG), photocatalysis performance and single crystal X-ray diffraction studies (XRD). The XRD analysis indicated that MOFs (1) and (2) both belong to the monoclinic system with space group P2(1)/C. The structural model were drawn by the diamond software, and the structure revel that MOFs (1) and (2) adopt three-dimensional (3D) frameworks constructed by cross-linking of one-dimensional (1D) infinite chain secondary building unit (SBU) by 2, 6-Pyridinedicarboxylic acid and hydrogen bond as linker. These frameworks feature channels inside which coordinated H2 O solvent molecules are located. Thermogravimetric analysis showed that both MOFs are thermally stable, the photocatalytic evaluation showed the materials have a good prospect in degration methylene blue. As for complex 1, the decomposition efficiency of Methylene blue was about 91.08% after 130 min and the complex 2 reach 90.45% after 160 min under the sun light.