High-Performance Arsine Removal Using CuOx/TiO2 Sorbents under Low-Temperature Conditions
| Autor: | Zhou Qiqi, Yilong Lin, Ping Ning, Jinhuan Cheng, Huang Hongqi, Xueqian Wang, Yibing Xie, Langlang Wang |
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| Rok vydání: | 2018 |
| Předmět: |
Anatase
Materials science General Chemical Engineering Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound Fuel Technology Arsine Adsorption X-ray photoelectron spectroscopy chemistry law Desorption Calcination Limiting oxygen concentration Fourier transform infrared spectroscopy 0210 nano-technology Nuclear chemistry |
| Zdroj: | Energy & Fuels. 32:7035-7045 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.8b00448 |
| Popis: | In this work, copper-based titanium sorbents (CuOx/TiO2) synthesized by sol–gel method were used to remove arsine (AsH3) at low temperatures. The Cu content, calcination temperature, pH, oxygen concentration, and reaction temperature were the five key factors that were determined and analyzed in this work. The optimum breakthrough adsorption capacity for arsine was promising and had the value of 534.3 mg/g for the Cu content of 20 wt %, calcination temperature of 400 °C, pH of 10, oxygen concentration of 2%, and reaction temperature of 120 °C. The chemical and structural features of the initial and arsine-exposed sorbents were analyzed using the Brunauer–Emmett–Teller method, X-ray diffraction analysis, temperature-programmed desorption of carbon dioxide, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy. It was found that the contents of anatase and rutile TiO2 in sorbents could be regulated by changing the pH of sorbents. Additionally, at pH of 1... |
| Databáze: | OpenAIRE |
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