| 膨胀石墨负载氧化铜活化过硫酸盐用于降解盐酸四环素 |
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| 引用本文： | 徐睿,杨威,杨哲,成倩兰,顾丽婷,郭盛. 膨胀石墨负载氧化铜活化过硫酸盐用于降解盐酸四环素[J]. 环境工程, 2020, 38(2): 48-54,47. DOI: 10.13205/j.hjgc.202002006 |
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| 作者姓名： | 徐睿 杨威 杨哲 成倩兰 顾丽婷 郭盛 |
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| 作者单位： | 武汉工程大学 化学与环境工程学院, 武汉 430205 |
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| 基金项目： | 国家自然科学基金项目;武汉工程大学科学研究基金;武汉工程大学校长基金 |
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| 摘 要： | 通过浸渍加焙烧制备出膨胀石墨（EG）负载CuO复合材料（CuO/EG），并通过X射线衍射和扫描电镜对催化剂的晶体结构和表面形貌进行表征分析。将复合材料用于活化过硫酸盐（过氧单磺酸钾，PMS）降解盐酸四环素（TC），在焙烧温度为500℃，负载量为1:4，催化剂投加量为0.2 g/L，PMS投加量为0.2 g/L的条件下，CuO/EG/PMS体系在20 min内即可将TC完全降解。同时，研究发现该复合催化体系在较广pH范围（3~9）内，以及无机阴离子共存的条件下均保持高效的催化性能。催化剂循环使用5次后，仍具有较高的催化活性。捕获实验表明，催化降解体系中起主要作用的是SO4-·。此外，CuO/EG/PMS体系对于染料罗丹明B和酸性红G同样具有优异的降解效果，表明催化剂具有较好的普遍适用性。
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| 关 键 词： | CuO 膨胀石墨 过硫酸盐 硫酸根自由基 盐酸四环素 |
| 收稿时间： | 2019-02-20 |
HIGH-EFFICIENT REMOVAL OF TETRACYCLINE HYDROCHLORIDE BASED ON PEROXYMONOSULFATE ACTIVATED BY CuO/EXPANDED GRAPHITE COMPOSITE |
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| XU Rui,YANG Wei,YANG Zhe,CHENG Qian-lan,GU Li-ting,GUO Sheng. HIGH-EFFICIENT REMOVAL OF TETRACYCLINE HYDROCHLORIDE BASED ON PEROXYMONOSULFATE ACTIVATED BY CuO/EXPANDED GRAPHITE COMPOSITE[J]. Environmental Engineering, 2020, 38(2): 48-54,47. DOI: 10.13205/j.hjgc.202002006 |
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| Authors: | XU Rui YANG Wei YANG Zhe CHENG Qian-lan GU Li-ting GUO Sheng |
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| Affiliation: | School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China |
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| Abstract: | A CuO-doped expanded graphite composite (CuO/EG) was prepared via impregnation and calcination. The properties including crystalline structure and morphology of CuO/EG were characterized by X-ray diffractometer (XRD) and scanning electron microscope (SEM). The as-prepared catalyst was applied for catalytic degradation of tetracycline hydrochloride (TC) wastewater by activation of peroxymonosulfate (PMS). TC could be completely degraded by CuO/EG/PMS system within 20 min under the reaction condition of calcination temperature 500℃, doping ratio of CuO to EG of 1:4, 0.2 g/L catalyst and 0.2 g/L PMS. CuO/EG/PMS system demonstrated excellent catalytic performance in a wide range of pH (3~9) and under the coexistence of inorganic anions. Moreover, the CuO/EG catalyst still exhibited good reusability even after 5 successive runs for TC degradation. Quenching experiments confirmed that SO4-·radicals were the dominant reactive species during the degradation process. In addition, CuO/EG/PMS system exhibited satisfactory removal of dyes such as Rhodamine B and acid red G, indicating that the catalyst had a novel universal applicability. |
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