摘要
采用溶剂热法,以g-C3N4为基体制备g-C3N4/Fe3O4磁性纳米复合材料,并将其作为吸附剂,研究了不同的吸附条件对g-C3N4/Fe3O4去除水中对硝基酚性能的影响,并利用Langmuir和Freundlich等温线模型分析了该吸附行为。结果表明,在投料量为10 mg,吸附时间为5 min时,对硝基酚的去除率达到85.7%;吸附等温线拟合结果表明g-C3N4/Fe3O4对对硝基酚的吸附行为更符合Langmuir等温模型,相关系数为0.9943。
The g-C3N4/Fe3O4 magnetic nanocomposite was successfully prepared with solvothermal method using g-C3N4 as matrix.The effects of different adsorption parameters on the removal of p-nitrophenol from water by g-C3N4/Fe3O4 were systematically investigated.Langmuir and Freundlich isotherm models were used to analyze the adsorption behavior.The results show that the removal rate of p-nitrophenol reached 85.7%at the dosage of 10 mg and adsorption time of 5 min.The adsorption isotherm fitting results demonstrate that the adsorption behavior of p-nitrophenol by g-C3N4/Fe3O4 was more in line with Langmuir isotherm model,and the correlation coefficient was 0.9943.
作者
徐瑞兰
彭勇
徐胜
XU Ruilan;PENG Yong;XU Sheng(School of Science,Nanchang Institute of Technology,Nanchang 330099,China)
出处
《南昌工程学院学报》
CAS
2020年第1期108-114,共7页
Journal of Nanchang Institute of Technology
基金
江西省教育厅科学技术研究项目(GJJ161129)
江西省自然科学基金资助项目(20161BAB213062)。
关键词
对硝基酚
石墨相氮化碳
溶剂热法
磁性分离
吸附
p-nitrophenol
g-C3N4
solvothermal method
magnetic separation
adsorption
