Abstract：
:A new green hydrogel has been synthesized by crosslinking lignosulfonate (L), sodium alginate (SA) and konjaku flour (KJ). We have optimized the ratio of the three synthesized polymers using an orthogonal design of experiments and characterized this hydrogel using SEM, BET and FTIR spectra. We have added the hydrogel into soil and investigated its degradability in soil and its influence on chemical and physical properties of soil, such as maximum water holding capacity, saturated hydraulic conductivity, water retention curve and nutrient retention and evaluated its performance when applied in drought stress tests on tobacco plants. The results show that the maximum water absorption of optimized L/KJ/SA is 41.23 g/g. Adding the L/KJ/SA hydrogel to soil reduces saturated hydraulic conductivity, increases available water capacity of soil and reduces leaching of soil nutrient. The L/KJ/SA hydrogel can improve the photosynthetic capability of tobacco plants under drought stress and the levels of osmotic regulators such as proline and reducing sugar, and could prolong the growth time of tobacco plants up to 14 days, which significantly increases its mass harvest. The L/KJ/SA hydrogel also has good degradability, which can degrade 20% when buried in soil for 120 days.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Song B,Liang H,Sun R,Peng P,Jiang Y,She Ddoi
10.1016/j.ijbiomac.2019.12.082subject
Has Abstractpub_date
2020-02-01 00:00:00pages
219-230eissn
0141-8130issn
1879-0003pii
S0141-8130(19)38344-8journal_volume
144pub_type
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journal_title：International journal of biological macromolecules
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journal_title：International journal of biological macromolecules
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journal_title：International journal of biological macromolecules
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journal_title：International journal of biological macromolecules
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journal_title：International journal of biological macromolecules
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journal_title：International journal of biological macromolecules
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abstract：:In this work, amine riched MnFe2O4-cellulose was employed to remove toxic Cr (VI). To find out the optimum conditions R (3.3.1) software was used. The results of Cr (VI) adsorption onto three-step adsorbents were compared by interpreting kinetic and isotherm studies. The kinetic studies reveal that the adsorption of C...
journal_title：International journal of biological macromolecules
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