The nano-ceramic which is mesoporous silica material was applied to test the removal efficiency of gas-phase Hg0 using a fixed-bed reactor. The physical and chemical properties of nano-ceramic were investigated by various techniques such as BET surface area (BET), X-ray diffraction, fourier transform infrared spectrometer (FTIR), and scanning electron microscope (SEM); then, the sample was tested for mercury adsorption under different conditions. The mercury adsorption tests shown that different Hg0 concentration, adsorption temperature, gas flow rate, and different gas components have significant effects on the mercury removal performance of nano-ceramic, and the adsorption removal rate of nano-ceramic can be 75.58% under the optimal experimental conditions. After fitting the experimental data to the adsorption model, it was found that the theoretical maximum mercury adsorption amount q max of nano-ceramic is 1.61 mg g−1 and there were physical and chemical adsorption at the same time. The adsorption kinetics fitting results shown that the adsorption process of nano-ceramic exhibits multi-segment characteristics of “transmembrane–diffusion–adsorption.”

中文翻译：

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纳米陶瓷材料气相脱汞

将纳米陶瓷作为介孔二氧化硅材料应用于固定床反应器对气相Hg0的去除效率测试。采用BET比表面积（BET）、X射线衍射、傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）等多种技术研究了纳米陶瓷的理化性能；然后，测试样品在不同条件下的汞吸附。汞吸附试验表明，不同Hg0浓度、吸附温度、气体流量、不同气体组分对纳米陶瓷的除汞性能有显着影响，最佳条件下纳米陶瓷的吸附去除率可达75.58%。实验条件。将实验数据拟合到吸附模型后，发现纳米陶瓷的理论最大汞吸附量q max 为1.61 mg g-1，同时存在物理吸附和化学吸附。吸附动力学拟合结果表明，纳米陶瓷的吸附过程表现出“跨膜-扩散-吸附”的多段特性。