Spectroscopy and Spectral Analysis, Volume. 41, Issue 12, 3957(2021)
Modification of Ternary Layered Hydroxide and Removing for Orange Ⅱ With Spectroscopy
Figures & Tables(10)
Fig. 2. The UV-Vis of (a) PA-LDH and (b) PA-LDO after adsorption under different time; (c) Influence of adsorption time on the extraction
Fig. 4. (a) Pseudo-first-order kinetics; (b) Pseudo-second-order kineticsfor removing Orange Ⅱ by PA-LDH and PA-LDO
Fig. 5. Adsorption isotherm of removing Orange Ⅱby PA-LDH and PA-LDO
pH 7.0, 5 mg of PA-LDH, 5 mg of PA-LDO, 10 mL of Orange Ⅱ solution and 14 h of contact time
Table 1. Textual properties of different materials
View tableView in ArticleTable 1. Textual properties of different materials
Adsorbents BET surface
/(m2·g-1)Pore volume
/(cm3·g-1)Average pore
diameter/nmLDH 13.592 5 0.008 3 24.3711 PA-LDH 15.934 1 0.011 3 28.483 8 LDO 90.712 4 0.175 0 77.171 5 PA-LDO 119.401 0 0.302 3 101.270 5
Table 2.
Q max of different adsorbents on Orange ⅡView tableView in ArticleTable 2.
Q max of different adsorbents on Orange Ⅱ吸附剂 Qmax/(mg·g-1) 参考文献 SA 350 [ 10 ]AC 404 [ 11 ]HT500 328.94 [ 12 ]NH2-MCM-41 278.38 [ 13 ]SBG 30.5 [ 14 ]AC-2 389 [ 15 ]PA-LDH 561.322 本工作 PA-LDO 1 401.639 本工作
Table 3. Parameters of kinetic models for orange Ⅱ adsorption
View tableView in ArticleTable 3. Parameters of kinetic models for orange Ⅱ adsorption
样品 Qexp/
(mg·g-1)准一级动力学方程 准二级动力学方程 R2 Qcal/
(mg·g-1)k1/
min-1R2 Qcal/
(mg·g-1)k2×104/
[g·(mg·min)-1]PA-LDH 150.991 0.980 2 119.677 0.004 5 0.998 4 169.492 0.623 PA-LDO 181.495 0.977 123.273 0.004 4 0.998 192.308 0.775
Table 4. Adsorption isotherm parameters
View tableView in ArticleTable 4. Adsorption isotherm parameters
吸附剂 Qexp/(mg·g-1) Langmuir模型 Freundlich模型 Qcal/(mg·g-1) B/(L·mg-1) R2 n K R2 PA-LDH 561.322 588.235 0.018 0.997 8 2.507 51.713 0.921 4 PA-LDO 1 401.639 1 428.571 0.241 0.998 5 3.4 404.110 0.842 6
Table 5. Thermodynamic parameters
View tableView in ArticleTable 5. Thermodynamic parameters
吸附剂 ΔH/(kJ·mol-1) ΔS/[J·(mol·K)-1] ΔG/(kJ·mol-1) 293 K 303 K 313 K PA-LDH 4.832 22.476 -1.754 -1.979 -2.203 PA-LDO 99.092 371.06 -9.628 -10.252 -17.050
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Shuang-cheng JIANG, Dan-yang FAN, Yue LIU, Jia-bin WANG, Hai-xia LÜ. Modification of Ternary Layered Hydroxide and Removing for Orange Ⅱ With Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3957
Paper Information
Category: Research Articles
Received: Oct. 29, 2020
Accepted: --
Published Online: Dec. 17, 2021
The Author Email: Shuang-cheng JIANG (2001082011@163.com)
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