| Construction of Fe2O3 Co3O4 exfoliated graphite composite and its high efficient treatment of landfill leachate by activation of potassium persulfate | |
| Guo, Ruonan; Meng, Qi; Zhang, Huixuan; Zhang, Xinyi; Li, Bo; Cheng, Qingfeng; Cheng, Xiuwen | |
| 2019 | |
| 发表期刊 | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| 卷号 | 355页码:952-962 |
| 摘要 | Landfill leachate, as one of high-ammonia nitrogen organic pollutants, has been characterized to be potentially dangerous on ground water and soil. However, traditional technologies cannot deal with these substances swiftly. Thus, in this study, exfoliated graphite (EG) immobilized ferric oxide and cobaltosic oxide species has been successfully constructed by a facile heating-precipitation strategy. Subsequently, physicochemical properties of Fe2O3/Co3O4/EG were investigated by scanning electron microscope, X-ray diffraction, N-2 adsorption/desorption, X-ray photoelectron spectroscopy measurements. Results indicated that Fe2O3 and Co3O4 nano-particles were successfully deposited onto the surface and interstice of EG substrate. In addition, activation performance of Fe2O3/Co3O4/EG composite was evaluated by activating potassium persulfate (PS) to degrade the landfill leachate. In addition, effect of some critical operating parameters on the removal of landfill leachate was studied systematically. The experimental results showed that 90.6% of NH4+-N and 67.1% of COD in landfill leachate could be removed at the optimized conditions of pH 5, PS concentration 0.05M and Fe2O3/Co3O4/EG dosage 0.1 g. Furthermore, Fe2O3/Co3O4/EG sample also displayed good recycle and reusable capacities. Besides these, high-efficient removal mechanism of Fe2O3/Co3O4/EG was proposed. This study provides a feasible strategy to prepare catalyst which could be potentially applied in refractory contaminants elimination. |
| DOI | 10.1016/j.cej.2018.08.168 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34050 |
| 专题 | 盐湖资源综合利用工程技术中心 中国科学院青海盐湖研究所 |
| 推荐引用方式 GB/T 7714 | Guo, Ruonan,Meng, Qi,Zhang, Huixuan,et al. Construction of Fe2O3 Co3O4 exfoliated graphite composite and its high efficient treatment of landfill leachate by activation of potassium persulfate[J]. CHEMICAL ENGINEERING JOURNAL,2019,355:952-962. |
| APA | Guo, Ruonan.,Meng, Qi.,Zhang, Huixuan.,Zhang, Xinyi.,Li, Bo.,...&Cheng, Xiuwen.(2019).Construction of Fe2O3 Co3O4 exfoliated graphite composite and its high efficient treatment of landfill leachate by activation of potassium persulfate.CHEMICAL ENGINEERING JOURNAL,355,952-962. |
| MLA | Guo, Ruonan,et al."Construction of Fe2O3 Co3O4 exfoliated graphite composite and its high efficient treatment of landfill leachate by activation of potassium persulfate".CHEMICAL ENGINEERING JOURNAL 355(2019):952-962. |
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