The anionic metal–organic framework (Cu-BTC-DMA) was synthesized by the hydrothermal method. The extra-framework (CH3)2 NH2 + cations in Cu-BTC-DMA structure are movable and can be easily exchanged with Ag+. The Ag+-exchanged Cu-BTC-DMA was characterized through FT-IR, XRD, SEM, ICP, and N2 adsorption–desorption isotherms. The adsorption properties of Ag+-exchanged Cu-BTC-DMA with different Ag cation content were studied for the model fuel with different concentrations of thiophene. The results show that the Ag+-exchanged adsorbents show higher adsorption capacity for thiophene, which was ascribed to the introduction of Ag+ into Cu-BTC-DMA. Thiophene can interact with Ag+ via π-complexation. In addition, the Ag@Cu-BTC-DMA still shows the good performance of adsorption desulfurization in the presence of toluene. Ag@Cu-BTC-DMA (0.02 M) shows the highest adsorption capacity among the three adsorbents due to the high Ag+ amount and the almost integrated crystalline structure. In the process of regeneration, approximately 86% of the adsorptive capacity of Ag@Cu-BTC-DMA (0.02 M) can be recovered after four cycles.

Faujasite (FAU) zeolites with low Si/Al ratios (e.g., X-type zeolites) have much more exchangeable cation sites than those with high Si/Al ratios (Y-type zeolites) for Cu­(I), which could improve the adsorption performance via π-complexation. However, the structure of Cu-exchanged X-type zeolites was unstable during autoreduction at high temperatures as reported [ Takahashi Takahashi Ind. Eng. Chem. Res.et. al.20024124872496]. Here, we proposed a scheme of Cu-exchanged X-type zeolites in copper–ammonia solution to improve the stability of the zeolite structure during autoreduction. Therefore, it makes us be able to study the adsorption properties of thiophenic compounds in Cu­(I)-exchanged FAU zeolites from low to high Si/Al ratios. The modified zeolites were characterized by X-ray diffraction, high-resolution transmission electron microscopy, inductively coupled plasma spectroscopy, X-ray fluorescence, and Brunauer–Emmett–Teller analysis and tested by adsorption desulfurization experiments in model fuels. The results indicate that the modified zeolites with various Si/Al ratios show different adsorption properties for thiophene and benzothiophene. The adsorption capacity for thiophene decreased in the order Cu­(I)­Y-5.30 > Cu­(I)­X-1.23 > Cu­(I)­Y-2.30. For benzothiophene, the adsorption capacity decreased in the order Cu­(I)­Y-2.30 > Cu­(I)­Y-5.30 > Cu­(I)­X-1.23.

Aiming at the operation safety for transmission lines in east Inner Mongolia seriously threatened by bird-caused damage in transmission and transformation equipment, according to the analysis of the law of bird activities in east Inner Mongolia, it is found that 463 species of birds are exist in east Inner Mongolia, and the bird damages are mainly caused by larger birds. Through the application effect of existing anti-bird measures, it is found that the current bird-repelling anti-bird measures can reduce the number of bird damages. However, the actual application effect of the anti-bird measures is still limited based on the operational data. Therefore, the guided improvement measures based on the artificial bird guide are proposed, and the corresponding models are made. The comparison with several existing bird-prevention measures is carried out and the test show that the combination of bird thorn of anti-bird measures prevention and the bird guides have a better effect. It is expected that the research can provide reference for the bird disease prevention and control work for east Inner Mongolia Power Grid.