Organic dye containing wastewater and nuclear waste have received more worldwide attention because of the significant environmental problems and the effects of radiation on health. Adsorption is considered to be an efficient, low-cost, and environmentally friendly method for pollutant removal. In this paper, we developed a novel covalent organic framework (BTT-TAPT-COF) adsorbent which contains abundant S and N active sites as well as extended π-conjugated structure. This COF shows high crystallinity, large surface area, and thermal stability. Due to the porous feature, existence of electron-rich heteroatoms as well as the large π-conjugated network structure, BTT-TAPT-COF exhibits excellent adsorptive performance for the removal of hazardous dye indigo carmine with an adsorption capacity of 547.33 mg g⁻¹ and rapid reversible volatile iodine uptake with an adsorption capacity of 276 wt%. After five cycles, BTT-TAPT-COF almost retains the same iodine adsorption capacity with the original adsorbent.

由于重大的环境问题和辐射对健康的影响，含有机染料的废水和核废料已引起全世界的广泛关注。吸附被认为是一种高效，低成本，环保的污染物去除方法。在本文中，我们开发了一种新型的共价有机骨架（BTT-TAPT-COF）吸附剂，它包含丰富的S和N活性位以及扩展的π共轭结构。该COF显示出高结晶度，大表面积和热稳定性。由于具有多孔性，富含电子的杂原子的存在以及较大的π共轭网络结构，BTT-TAPT-COF表现出优异的吸附性能，可去除有害染料靛蓝胭脂红，吸附容量为547.33 mg g ^-1快速可逆的挥发性碘吸收，吸附量为276 wt％。在五个循环之后，BTT-TAPT-COF几乎保持了与原始吸附剂相同的碘吸附能力。