Hydrogen energy is considered to be the most potential “ultimate energy source” due to its high combustion calorific value, cleanliness, and pollution-free characteristics.

Volatile Organic Compounds (VOCs) are significant contributors to air pollution and play a crucial role as precursors for secondary pollutants such as O3, thereby posing severe health risks and attracting global attention. ZIF-67, a metal-organic framework (MOFs), possesses a porous microstructure and high specific surface area, offering exceptional adsorption performance, catalytic activity, and structural stability. In this investigation, a solvent-thermal method was employed to synthesize a series of Fe-modified ZIF-67 denoted as FCMx. The impact of Fe doping and temperature on the dynamic adsorption performance of toluene was examined. The results revealed satisfactory adsorption performance of FCMx when the Fe doping was 14 mol%. FCM14 achieved saturation adsorption of toluene in approximately 5000 s, exhibiting a saturated adsorption capacity of 1769.80 mg/g at 25 °C. This represented a 25% improvement in adsorption time and a 30% increase in saturated adsorption capacity compared to undoped ZIF-67. Furthermore, at a reaction temperature of 150 °C, FCM14 exhibited saturation time of approximately 4300 s and a saturated adsorption amount of 1471.43 mg/g, indicating a combined effect of chemical and physical adsorption. The findings of this research provide valuable experimental data and theoretical support for the potential industrial application of MOFs in VOC adsorption.

Improving steam parameters in a coal-fired power unit boosts cycle efficiency, lowers coal consumption, and reduces emissions. The backpressure extraction steam turbine (BEST) cycle addresses the problem of excessive superheating of extraction steam. This study analyzed a 1000 MW double reheating unit, finding that heat rate in the conventional and BEST cycle systems is heavily influenced by load under THA conditions. At 100% and 75% loads, the BEST cycle’s heat rate decreases but increases at 50% load. For safe operation during flow interruption and high load rates, a pairwise grouping method is recommended for high-pressure heater interruption. When multiple low-pressure heaters are simultaneously cut off, the unit load needs to be limited based on the number of heaters being removed. when multiple low-pressure heaters are simultaneously cut off, the unit load needs to be limited based on the number of heaters being removed. Removing two low-pressure heaters lowers the load to 90%, and three lowers it to 80%. These findings optimize the thermal system’s parameters and enhance overall efficiency.

At present, Metal Organic Frameworks (MOFs) have been widely studied as antibacterial materials, but the research on the antibacterial properties of bimetal organic frameworks has not been carried out in depth. Cu-BTC was prepared by solvothermal method and modified with cobalt. The effect of different Co doping amounts on the antibacterial properties of Cu-BTC was investigated. Bimetallic Co/Cu-BTC with 7%, 14% and 21% metal molar ratios were prepared. The structural characteristics of the materials were determined by TG, FTIR, XRD, BET and the antibacterial properties of Cu-BTC and bimetallic Co/Cu-BTC were evaluated by measuring the bacteriostatic circles. The results show that the specific surface area and pore volume show a decreasing trend with the increase of Co doping amount, which confirms that the pore size of Co/Cu-BTC can be regulated by changing the Co loading amount. Co/Cu-BTC has antibacterial activity, and its performance is stronger than that of Cu-BTC. The introduction of bimetallic central elements into metal-organic framework materials can enhance the redox properties of the materials, thereby generating more reactive oxygen species and significantly enhancing the antibacterial effect of the materials. Among the tested samples, 7Co/Cu-BTC has the best antibacterial effect. Bimetallic organic frameworks will have good application potential in the field of antibacterial.