School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China.
School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China.
J Hazard Mater. 2018 Apr 15;348:47-55. doi: 10.1016/j.jhazmat.2018.01.027. Epub 2018 Jan 31.
The novel zincphthalocyanine-based conjugated microporous polymers with rigid-linker (α-ZnPc-CMP and β-ZnPc-CMP) were synthesized by copolymerization of zinc phthalocyanine (ZnPc) and 4, 6-diaminoresorcinol dihydrochloride (DADHC). The α-ZnPc-CMP and β-ZnPc-CMP were utilized as heterogeneous photocatalysts to degrade Rhodamine B (RhB) in aqueous solution. It is the first time for MPc-based CMPs used as heterogeneous photocatalysts for photodegradation of RhB to date. The highly ordered skeletal alignment and two-dimensional open-channel structure of α-ZnPc-CMP and β-ZnPc-CMP not only solve the aggregation of ZnPc and enhance its photocatalytic activity, but also facilitate the recycling and avoid the secondary pollution. The chemical structures and morphologies of α-ZnPc-CMP and β-ZnPc-CMP were well characterized by Fourier transform infrared spectra (FT-IR), solid-state C nuclear magnetic resonance (C NMR), scanning electron microscopy (SEM), N-sorption/ desorption and X-ray diffraction (XRD). The solubility experiments and thermogravimetric analysis (TGA) showed they have good chemical stability and recyclability. Furthermore, the photocatalytic tests indicated α-ZnPc-CMP and β-ZnPc-CMP have excellent photocatalytic performances for degradation of RhB (3 h, degraded 98 and 97.47%) in the presence of HO under visible-light irradiation. All results reveal that α-ZnPc-CMP and β-ZnPc-CMP have great potential as photocatalysts on the degradation of organic dye contaminants. Moreover, the possible reaction mechanism of α-ZnPc-CMP and β-ZnPc-CMP as photocatalysts for the degradation of RhB is proposed.
新型锌酞菁基共轭微孔聚合物具有刚性连接体（α-ZnPc-CMP 和 β-ZnPc-CMP），由锌酞菁（ZnPc）和 4,6-二氨基间苯二酚二盐酸盐（DADHC）共聚合成。α-ZnPc-CMP 和 β-ZnPc-CMP 用作非均相光催化剂，在水溶液中降解罗丹明 B（RhB）。这是迄今为止首次将基于 MPc 的 CMP 用作光降解 RhB 的非均相光催化剂。α-ZnPc-CMP 和 β-ZnPc-CMP 的高度有序骨架排列和二维开通道结构不仅解决了 ZnPc 的聚集问题，提高了其光催化活性，而且便于回收，避免了二次污染。α-ZnPc-CMP 和 β-ZnPc-CMP 的化学结构和形态通过傅里叶变换红外光谱（FT-IR）、固态 C 核磁共振（C NMR）、扫描电子显微镜（SEM）、N 吸附/解吸和 X 射线衍射（XRD）得到了很好的表征。溶解度实验和热重分析（TGA）表明它们具有良好的化学稳定性和可回收性。此外，光催化测试表明，在可见光照射下，α-ZnPc-CMP 和 β-ZnPc-CMP 在 HO 存在下对 RhB 的降解具有优异的光催化性能（3 h，降解了 98%和 97.47%）。所有结果表明，α-ZnPc-CMP 和 β-ZnPc-CMP 在降解有机染料污染物方面具有巨大的应用潜力。此外，还提出了 α-ZnPc-CMP 和 β-ZnPc-CMP 作为光催化剂降解 RhB 的可能反应机制。
