The pyrrole was uniformly dispersed in the straw waste solution and oxidized in situ using potassium persulfate as an oxidant to form STRR/PPy,STRA/PPy,STRA/E/PPy composite materials.Morphological analysis and functional group analysis of obtained three composites were performed by depth-of-field digital microscope and FT-IR.Dye adsorption experiments showed that the three composites had specific adsorption on acid fuchsin.Among three composites,STRR/PPy exhibited higher adsorption efficiency.Furthermore,the factors involved in the adsorption process such as temperature,initial dye concentration were investigated.The results showed that the STRR/PPy composite could reach adsorption equilibrium within 40 min at 28℃ in 60mg/L acid fuchsin solution,and the acid fuchsin removal efficiency was approximately 89%.
[1] Han X,Wang W,Ma X.Adsorption characteristics of methylene blue onto low cost biomass material lotus leaf[J].Chemical Engineering Journal,2011,171(1):1-8.
[2] Mahmoodi N M,Hayati B,Arami M,et al.Adsorption of textile dyes on pine cone,from colored wastewater:kinetic,equilibrium and thermodynamic studies[J].Desalination,2011,268(1):117-125.
[3] Motte J C,Escudié R,Beaufils N,et al.Morphological structures of wheat straw strongly impacts its anaerobic digestion[J].Industrial Crops & Products,2014,52(52):695-701.
[4] Moset V,Xavier C D A N,Møller H B.Optimization of methane yield by using straw briquettes-influence of additives and mold size[J].Industrial Crops & Products,2015,74:925-932.
[5] Rahman M A,Møller H B,Saha C K,et al.Anaerobic co-digestion of poultry droppings and briquetted wheat straw at mesophilic and thermophilic conditions:influence of alkali pretreatment[J].Renewable Energy,2018:241-249.
[6] Liao W,Liu Y,Wen Z,et al.Kinetic modeling of enzymatic hydrolysis of cellulose in differently pretreated fibers from dairy manure[J].Biotechnology & Bioengineering,2010,101(3):441-451.
[7] Álvarez M S,Moscoso F,Rodríguez A,et al.Novel physico-biological treatment for the remediation of textile dyes-containing industrial effluents[J].Bioresour Technol,2013,146(4):689-695.
[8] Elango G,Roopan S M.Efficacy of SnO2 nanoparticles toward photocatalytic degradation of methylene blue dye[J].Journal of Photochemistry & Photobiology B Biology,2016,155(155):34-38.
[9] Pizarro A H.Decoloration of organic dyes in aqueous phase by catalytic hydrotreatment[J].Catalysis Communications,2016,90:100-105.
[10] Wei J,Gao B,Yue Q,et al.Effect of dosing method on color removal performance and flocculation dynamics of polyferric-organic polymer dual-coagulant in synthetic dyeing solution[J].Chemical Engineering Journal,2009,151(1):176-182.
[11] Chen J Y,Hao Y M,Liu Y,et al.Magnetic graphene oxides as highly effective adsorbents for rapid removal of a cationic dye rhodamine B from aqueous solutions[J].RSC Adv,2013,3(20):7254-7258.
[12] Zhao S P,Zhou F,Li L Y,et al.Removal of anionic dyes from aqueous solutions by adsorption of chitosan-based semi-IPN hydrogel composites[J].Composites Part B:Engineering,2012,43(3):1570-1578.
[13] Song S,Ma Y,Shen H,et al.Removal and recycling of ppm level methylene blue from aqueous solution with graphene oxide[J].RSC Advances,2015,5(35):27922-27932.
[14] Purkait M K,Maiti A,Dasgupta S,et al.Removal of congo red using activated carbon and its regeneration[J].Journal of Hazardous Materials,2007,145(1):287-295.
[15] Chatterjee S,Lee M W,Woo S H.Adsorption of congo red by chitosan hydrogel beads impregnated with carbon nanotubes[J].Bioresource Technology,2010,101(6):1800-1806.
[16] Liu T,Li Y,Du Q,et al.Adsorption of methylene blue from aqueous solution by graphene[J].Colloids Surf B Biointerfaces,2012,90(1):197-203.
[17] Tehrani-Bagha A R,Nikkar H,Mahmoodi N M,et al.The sorption of cationic dyes onto kaolin:kinetic,isotherm and thermodynamic studies[J].Desalination,2011,266(1):274-280.
[18] Elsherbiny A S,Salem M A,Ismail A A.Influence of the alkyl chain length of cyanine dyes on their adsorption by Na+-montmorillonite from aqueous solutions[J].Chemical Engineering Journal,2012,200-202:283-290.
[19] Huang R,Zhang L,Hu P,et al.Adsorptive removal of congo red from aqueous solutions using crosslinked chitosan and crosslinked chitosan immobilized bentonite[J].International Journal of Biological Macromolecules,2016,86:496-504.
[20] Zhou J,Lü Q F,Luo J J.Efficient removal of organic dyes from aqueous solution by rapid adsorption onto polypyrrole-based composites[J].Journal of Cleaner Production,2017,167:739-748.
[21] Xin Q,Fu J,Chen Z,et al.Polypyrrole nanofibers as a high-efficient adsorbent for the removal of methyl orange from aqueous solution[J].Journal of Environmental Chemical Engineering,2015,3(3):1637-1647.
[22] Feng J,Li J,Lv W,et al.Synthesis of polypyrrole nano-fibers with hierarchical structure and its adsorption property of acid red G from aqueous solution[J].Synthetic Metals,2014,191:66-73.
[23] Ovando-Medina V M,Dávila-Guzmán N E,Pérez-Aguilar N V,et al.A semi-conducting polypyrrole/coffee grounds waste composite for rhodamine B dye adsorption[J].Iranian Polymer Journal,2018,27(3):171-181.
[24] Ovando-Medina V M,Vizcaíno-Mercado J,González-Ortega O,et al.Synthesis of α-cellulose/polypyrrole composite for the removal of reactive red dye from aqueous solution:kinetics and equilibrium modeling[J].Polymer Composites,2015,36(2):312-321.
[25] Ai L,Li L.Efficient removal of organic dyes from aqueous solution with ecofriendly biomass-derived carbon@ montmorillonite nanocomposites by one-step hydrothermal process[J].Chemical Engineering Journal,2013,223:688-695.
基金资助
中央高校基本科研业务费专项资金(310829161015);大学生创新创业训练计划(201710710262)
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