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| Fe3O4改性水热炭活化过硫酸钠降解罗丹明B | |
| 引用本文： | 张凯,韦秀丽,王冰,蒋滔,刘科. Fe3O4改性水热炭活化过硫酸钠降解罗丹明B[J]. 化工进展, 2020, 39(7): 2867-2875. DOI: 10.16085/j.issn.1000-6613.2019-1550 |
| 作者姓名： | 张凯 韦秀丽 王冰 蒋滔 刘科 |
| 作者单位： | 1.农业废弃物资源化利用技术与设备研发重庆市重点实验室，重庆 401329;2.重庆大学环境与生态学院，重庆 400045;3.重庆凯锐农业发展有限责任公司，重庆 400020;4.重庆市农业科学院农业工程研究所，重庆 401329 |
| 基金项目： | 重庆市技术创新与应用发展专项重点项目;国家重点研发计划;重庆市技术创新与应用示范专项项目;重庆市科研院所绩效激励引导专项项目 |
| 摘 要： | 通过微波水热法，以沼渣为原料，合成了Fe3O4改性微波水热炭，研究了Fe3O4掺杂量对水热反应进程及反应产物的影响。为拓展水热产物的应用范围，以罗丹明B（RhB）为对象，评价改性水热炭对过硫酸钠的活化能力。结果表明，微波加热功率为400W、Fe3O4制备量为水热炭质量的20%时，反应体系14min左右即达到设定温度（200℃），较无Fe3O4条件下反应时间（27min左右）缩短了48.1%，体系压强增加了27.8%。改性水热炭添加量为0.16g、反应时间140min、溶液初始pH为6.7、过硫酸钠投加量为0.1g时，体积为150mL、浓度为40mg/L的RhB降解率可达94.6%，是水热炭单独作用时的3.3倍，过硫酸钠单独作用时的3.9倍。在反应体系中以硫酸根自由基（ |
| 关 键 词： | 微波水热法 Fe3O4改性 沼渣 过硫酸钠 活化 罗丹明B降解 |
Degradation of Rhodamine B by sodium persulfate activated with Fe3O4 modified hydrochar |
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| ZHANG Kai,WEI Xiuli,WANG Bing,JIANG Tao,LIU Ke. Degradation of Rhodamine B by sodium persulfate activated with Fe3O4 modified hydrochar[J]. Chemical Industry and Engineering Progress, 2020, 39(7): 2867-2875. DOI: 10.16085/j.issn.1000-6613.2019-1550 | |
| Authors: | ZHANG Kai WEI Xiuli WANG Bing JIANG Tao LIU Ke |
| Affiliation: | 1.Agricultural Waste Recycling Technology and Equipment R&D Chongqing Key Laboratory, Chongqing 401329, China 2.College of Environment and Ecology, Chongqing University, Chongqing 400045 3.Chongqing Kairui Agricultural Development Co. , Ltd. , Chongqing 400020 4.Institute of Agricultural Engineering, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China |
| Abstract: | Fe3O4 modified microwave hydrochar was synthesized from biogas residue by microwave hydrothermal method. The effects of Fe3O4 doping amount on hydrothermal reaction process and reaction products were studied. In order to expand the application scope of hydrothermal products, RhB was used as an object to evaluate the activation ability of modified hydrothermal charcoal on sodium persulfate. The results showed that when the microwave heating power is 400W and the amount of Fe3O4 produced is 20% of the mass of hydrochar, the reaction system reaches the set temperature (200℃) in about 14 minutes, the reaction time was reduced by 48.1% (about 27min) without Fe3O4, the system pressure increased by 27.8%. When the dosage of modified hydrochar is 0.16g, reaction time is 140 min, initial pH of solution is 6.7 and sodium persulfate is 0.1g, the degradation rate of RhB with volume of 150mL and concentration of 40mg/L can reach 94.6%, which is 3.3 times of hydrochar alone, 3.9 times of sodium persulfate alone. In the reaction system, sulfate radical ( |
| Keywords: | microwave hydrothermal method Fe3O4 modification biogas residue sodium persulfate (PS) activation Rhodamine B degradation |
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