壳聚糖/SiO_2复合材料的制备及对甲基橙的吸附性能
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摘要
用低成本、环境友好的天然原料制备有机无机杂化功能材料,从而实现清洁和易推广生产。用溶胶凝胶法来制备壳聚糖/SiO_2复合材料,通过红外、X-射线衍射、DSC、TGA对产物进行了表征。用甲基橙水溶液模拟工业染料废水,研究了壳聚糖/SiO_2对甲基橙溶液的吸附性能,考察了反应时间、甲基橙溶液的初始浓度、p H值、温度对吸附量的影响。实验结果表明,所制备的壳聚糖/SiO_2复合材料在25℃,p H值为4. 22,20 mg/L的甲基橙溶液中,吸附210 min达到吸附平衡,且饱和吸附量为43. 73 mg/g。
Organic and inorganic hybrid functional materials are prepared by natural and low cost materials with friendly environment to realize cleaning and easy promotion. The chitosan/SiO_2 has been synthesized through sol-gel method and characterized by XRD,FT-IR,DSC,TGA. Methyl orange solution was used to simulate industrial dye wastewater,the adsorption properties of chitosan/SiO_2 to it was studied. The batch adsorption experiments were conducted by varying the initial concentration of methyl orange,contact time,temperature and pH value of the dye solution by the spectrophotometry method. The results show that chitosan/SiO2 has good adsorption performance. On the condition that initial concentration of methyl orange is 20 mg/L,the pH value is 4. 22,chitosan/SiO_2 reached the saturate adsorption at 25 ℃ for about 210 min,and the adsorption capacity of it is 43. 73 mg/g.
Organic and inorganic hybrid functional materials are prepared by natural and low cost materials with friendly environment to realize cleaning and easy promotion. The chitosan/SiO_2 has been synthesized through sol-gel method and characterized by XRD,FT-IR,DSC,TGA. Methyl orange solution was used to simulate industrial dye wastewater,the adsorption properties of chitosan/SiO_2 to it was studied. The batch adsorption experiments were conducted by varying the initial concentration of methyl orange,contact time,temperature and pH value of the dye solution by the spectrophotometry method. The results show that chitosan/SiO2 has good adsorption performance. On the condition that initial concentration of methyl orange is 20 mg/L,the pH value is 4. 22,chitosan/SiO_2 reached the saturate adsorption at 25 ℃ for about 210 min,and the adsorption capacity of it is 43. 73 mg/g.
引文
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[3]Wei P C,Zhang D D,Cai M H,et al.Simplified single-emitting-layer hybrid white organic light-emitting diodes with high efficiency,low efficiency roll-off,high color rendering index and superior color stability[J].Organic Electronics,2017,49(10):242-248.
[4]Tang H D,Hu Q,Jiang W H,et al.Facile non-aqueous synthesis of high color rendering C@Zr SiO4encapsulation pigment with carboncontaining precursors as in-situ carbon sources[J].Ceramics International,2018,44(14):16498-16506.
[5]董姣.臭氧/微电解工艺对印染废水的处理效能研究[D].哈尔滨:哈尔滨工业大学,2015.
[6]Mansoor M,Hossein F.Untapped potentials of acrylonitrile-butadiene-styrene/polyurethane(ABS/PU)blend membrane to purify dye wastewater[J].Journal of Environmental Management,2017,197(7):464-475.
[7]Darja M,Andraz S,Alenka R,et al.Titania versus zinc oxide nanoparticles on mesoporous silica supports as photocatalysts for removal of dyes from wastewater at neutral pH[J].Catalysis Today,2018,310(7):32-41.
[8]Qu Z B,Sun F,Liu X,et al.The effect of nitrogen-containing functional groups on SO2adsorption on carbon surface:enhanced physical adsorption interactions[J].Surface Science,2018,677(11):78-82.
[9]Riva J D,Suarez-Reyes J,Moreno D,et al.Ionic liquids for post-combustion CO2capture by physical absorption:thermodynamic,kinetic and process analysis[J].International Journal of Greenhouse Gas Control,2017,61(6):61-70.
[10]Yu D W,Liu J B,Sui Q W,et al.Biogas-pH automation control strategy for optimizing organic loading rate of anaerobic membrane bioreactor treating high COD wastewater[J].Bioresource Technology,2016,203(3):62-70.
[11]余敏,黄晶晶,马敏,等.三肽的锌螯合活性及定量构效关系分析[J].高等学校化学学报,2018(2):234-240.
[12]Umemura M,Kim J H,Aoyama H,et al.The iron chelating agent,deferoxamine detoxifies Fe(Salen)-induced cytotoxicity[J].Journal of Pharmacological Sciences,2017,134(4):203-210.
[13]Niu Y H,Liang W B,Zhang Y L,et al.Crosslinking kinetics of polyethylene with small amount of peroxide and its influence on the subsequent crystallization behaviors[J].Chinese Journal of Polymer Science,2016,34(9):1117-1128.
[14]Nie H R,Wang C,He A H.Fabrication and chemical crosslinking of electrospun trans-polyisoprene nanofiber nonwoven[J].Chinese Journal of Polymer Science,2016,34(6):697-708.
[15]Wang L L,Dong X,Zhu P,et al.High elasticity and corresponding microstructure origin of novel long chain poly(amide-block-ether)filament fibers[J].European Polymer Journal,2017,90(5):171-182.
[16]Qu Z L,Wei K,He Q,et al.High temperature fracture toughness and residual stress in thermal barrier coatings evaluated by an in-situ indentation method[J].Ceramics International,2018,44(7):5,7926-7929.
[17]Ding Z W,Li H,Wei J,et al.Developing a novel magnesium glycerophospht-e/silicate-based organic-inorganic composite cement for bone repair[J].Materials Science&Engineering C Materials for Biological Applications,2018,87(3):104-111.
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[19]刘燕.壳聚糠-沸石杂化膜的制备及其吸附性能研究[D].福州:福建师范大学,2011.
[20]刘炳杰.壳聚糖金属印迹树脂的制备、表征及吸附特性的研究[D].青岛:中国海洋大学,2012.
[21]袁爽.改性壳聚糖微球的制备及其对印染废水中甲基橙吸附性能研究[D].广州:华南理工大学,2016.
[22]袁海宽,许振良,马晓华,等.PVA-TEOS/PAN渗透汽化膜的制备及其乙酸乙酯脱水[J].过程工程学报,2008,8(5):872-876.
[23]王珊,高奕红,高丰琴.新型明胶/壳聚糖/PVA水凝胶的制备及性能[J].皮革与化工,2016,33(1):23-28.
[24]石晶晶,夏玥,张科登,等.交联壳聚糖微球的制备及其对不同pH有机染料的吸附性能[J].胶体与聚合物,2014(4):169-172.
[25]傅献彩,沈文霞,姚天扬.物理化学[M].(第四版)北京:高等教育出版社,2005.
[26]沈钟,赵振国,王果庭.胶体与表面化学[M].北京:化学工业出版社,2005.
[27]陈宗淇,王光信,徐桂英.胶体与界面化学[M].北京:高等教育出版社,2004.
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