|
|
水热法制备CdOHF纳米材料及其对阳离子染料吸附性质研究
|
Abstract:
采用水热法，以NaBF4作为氟源，通过调节pH值，制备三维网状堆叠的分级CdOHF纳米结构。结果表明，不同的pH值和反应时间使得CdOHF具有一维纳米带、纳米带编织的二维网状结构和网叠的三维层次结构的可调结构变化。发现产物对阳离子有机染料展现出较强的选择性，对孔雀石绿(MG)的理论最大吸附量达48.31 mg/g。XRD和FTIR证明该吸附过程是物理吸附，符合准二阶动力学方程和Langmuir等温吸附方程。
Using NaBF4 as fluorine source, a hydrothermal method was used to prepare the nanonets-stacked hierarchical CdOHF nanostructures by varying pH value. The results showed that different pH values and reaction times made the CdOHF feature adjustable structural variations with 1D nanobelts, nano-belt-woven 2D nets and net-stacked 3D hierarchical structures. The adsorption properties of the CdOHF were investigate and exhibited a strong selectivity for cationic organic dyes. The theoretical maximum adsorption of graded structure CdOHF on MG was calculated to reach 48.31 mg/g. XRD and FTIR results indicate the adsorption process was physical adsorption. The adsorption process of CdOHF on Malachite Green conforms to the quasi second-order dynamic equation and Langmuir iso-thermal adsorption equation.
| [1] | Lai, M.T.L., Lai, C.W., Lee, K.M., et al. (2019) Facile One-Pot Solvothermal Method to Synthesize Solar Active Bi2WO6 for Photocatalytic Degradation of Organic Dye. Journal of Alloys and Compounds, 801, 502-510.
https://doi.org/10.1016/j.jallcom.2019.06.116 |
| [2] | Gao, Y., Deng, S.Q., Jin, X., et al. (2019) The Construction of Amorphous Metal-Organic Cage-Based Solid for Rapid Dye Adsorption and Time-Dependent Dye Separation from Water. Chemical Engineering Journal, 357, 129-139.
https://doi.org/10.1016/j.cej.2018.09.124 |
| [3] | Nguyen, D.T.C., Le, H.T.N., Nguyen, T.T., et al. (2021) Multifunctional ZnO Nanoparticles Bio-Fabricated from Canna indica L. Flowers for Seed Germination, Adsorption, and Photocatalytic Degradation of Organic Dyes. Journal of Hazardous Materials, 420, Article ID: 126586. https://doi.org/10.1016/j.jhazmat.2021.126586 |
| [4] | Wang, Q., Chen, Y.L., Zhu, R.X., et al. (2020) One-Step Synthesis of Co(OH)F Nanoflower Based on Micro-Plasma: As an Effective Nonenzymatic Glucose Sensor. Sensors and Actuators B: Chemical, 304, Article ID: 127282.
https://doi.org/10.1016/j.snb.2019.127282 |
| [5] | 田辉. 羟基氟化物MOHF(M = Zn, Cu)的合成、表征及高压研究[D]: [硕士学位论文]. 长春: 吉林大学, 2018. |
| [6] | Wang, J., Wang, Z.N., Zhao, D.Y., et al. (2022) Preparation, Structural and Photocatalytic Activity of Sn/Fe Co-Doped TiO2 Nanoparticles by Sol-Gel Method. Ceramics International, 48, 8297-8305.
https://doi.org/10.1016/j.ceramint.2021.12.034 |
| [7] | 刘国庆, 金利华, 徐晓燕, 等. 喷雾热解与共沉淀法制备高性能线材用Bi-2212粉末的中间相演变对比研究[J]. 稀有金属材料与工程, 2022(1): 92-97. |
| [8] | 朱丹琛, 李名洁, 陈彰旭, 等. 水热法合成二氧化锰及其对染料的脱色性能研究[J]. 无机盐工业, 2021, 53(11): 60-65. |
