Maize straw decorated with sulfide for tylosin removal from the water.
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Abstract | :
MS-ZnS and MS-ZnS:Mn complexes were synthesized via a simple method. The results showed that sulfide was successfully loaded on the maize straw. The results of fitting the experimental data showed that the sorption conforms to the pseudo-second-order kinetics, and the TYL sorption on MS fit the Henry model well, but the Freundlich model was more suited to MS-ZnS and MS-ZnS:Mn. In addition, the kf values of MS-ZnS (206.0(mg/kg)/(mg/L)n) and MS-ZnS:Mn (382.5(mg/kg)/(mg/L)n) were significantly greater than that of MS (72.2(mg/kg)/(mg/L)n), indicating that ZnS and ZnS:Mn could improve the sorption capacity of TYL on MS. The pH, ionic strength and temperature influence the sorption process, and the sorption ability of TYL on MS-ZnS and MS-ZnS:Mn showed little change when the solution pH was > 5; the amount of TYL sorption on the adsorbents gradually decreased with the increasing concentration of KNO3. Electrostatic interactions, H bonding and hydrophobic interactions are involved in the sorption of TYL on MS, MS-ZnS and MS-ZnS:Mn, and compared with MS, the main mechanism is surface complexation. This research can provide technical support for the utilization of biomass and the restoration of water polluted by antibiotics. |
Year of Publication | :
2018
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Journal | :
Ecotoxicology and environmental safety
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Volume | :
152
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Number of Pages | :
16-23
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Date Published | :
2018
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ISSN Number | :
0147-6513
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URL | :
http://linkinghub.elsevier.com/retrieve/pii/S0147-6513(18)30038-1
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DOI | :
10.1016/j.ecoenv.2018.01.025
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Short Title | :
Ecotoxicol Environ Saf
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