
Preparation and Adsorption Performance of Polyvinylpyrrolidone Grafted Garbon Nanospheres
JIN Chen, HE Wei
Preparation and Adsorption Performance of Polyvinylpyrrolidone Grafted Garbon Nanospheres
This study utilized glucose as the main raw material to prepare carbon nanospheres (CNs) using a hydrothermal method. Polyvinylpyrrolidone (PVP) was employed to modify the CNs, resulting in PVP grafted CNs (PVP-g-CNs). The structural morphology and functional group changes of the CNs before and after modification were characterized using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). Additionally, the dispersibility and adsorption performance of the modified CNs for methylene blue (MB) were tested. The results showed that the modified CNs exhibited an increased size and altered surface structure, while the amorphous crystal structure remained unchanged. PVP-g-CNs demonstrated good dispersibility in water, and adsorption tests revealed that when the PVP addition amount was 0.50 g and the MB solution mass concentration was 30 mg/L, the maximum adsorption capacity of PVP-g-CNs for MB reached 155.03 mg/g, with the adsorption capacity increasing with the pH of the solution. The fitting results of the adsorption model showed conformity to the pseudo-second-order kinetic model and the Langmuir model, with a theoretical maximum adsorption capacity of 238.095 2 mg/g, thus demonstrating excellent adsorption performance.
Carbon nanospheres / PVP / MB / Adsorption
1 |
陈璞金,余志宏.印染废水余热产中压高温蒸汽系统设计与分析[J].节能,2023,42(2):69-72.
|
2 |
|
3 |
|
4 |
|
5 |
|
6 |
|
7 |
|
8 |
|
9 |
|
10 |
|
11 |
|
12 |
|
13 |
|
14 |
|
15 |
|
16 |
|
17 |
|
18 |
|
19 |
|
20 |
孙桂岩,朱婵媛,张悦,等.SiO2纳米纤维的制备及其对亚甲基蓝染料的吸附脱色性能[J].材料导报,2014,28(增刊2):51-54.
|
21 |
温俊峰,刘侠,马向荣,等.沙柳基磁性多孔炭的制备及其吸附亚甲基蓝性能研究[J].功能材料,2021,52(4):4184-4191.
|
22 |
崔燕,康伟伟,胡季帆,等.一种新型磁性多孔碳的制备及其吸附性能研究[J].功能材料,2022,53(8):8128-8133.
|
23 |
|
24 |
|
25 |
|
26 |
|
27 |
|
28 |
|
29 |
|
30 |
|
31 |
|
/
〈 |
|
〉 |