Bibliographic Details
| Title: |
Adsorption of Low Cross-linking Density Hydrogel OMMT / Acid Hydrolysis Lignin Grafted Polyacrylic Acid for Cd (II). |
| Authors: |
Enxiao Lian, Ruoli Shi, Yilin Deng, Hongjun Zhu, Yanli Ma |
| Source: |
AIP Conference Proceedings; 2017, Vol. 1820 Issue 1, p1-5, 5p, 1 Black and White Photograph, 1 Chart, 1 Graph |
| Subject Terms: |
HYDROGELS, HYDROLYSIS, LIGNINS, POLYACRYLIC acid, CADMIUM, ADSORPTION (Chemistry), MONTMORILLONITE |
| Abstract: |
Organic montmorillonite/acid hydrolysis lignin graft poly (acrylic acid) composite superabsorbent (LBPAA/OMMT) was prepared by radical copolymerization of acrylic acid and acid hydrolysis lignin, and OMMT was homogeneous dispersed into hydrogels of LBPAA through supersonic irradiation. Persulphate ammonium was used as an initiator, and N, N'-ethylene bis-acrylamide (MBA) as a crosslinker. Adsorption behavior of water and Cd (II) ion on LBPAA/OMMT were investigated. The biggest capacity of adsorption for Cd (II) is PAA (0.6240 mmol/g). The ΔrH0 values of PAA, LBPAA, and LBPAA/OMMT were found as 116.71, 117.8, 125.15kJ mol-1 for Cd (II), respectively. Negative values of ΔrG0 indicates the spontaneous nature of the reaction. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |
