等离子体引发壳聚糖基絮凝剂及其脱色性能
|
摘要
采用等离子体引发壳聚糖(CTS)、丙烯酰胺(AM)和甲基丙烯酰氧乙基三甲基氯化铵(DMC)接枝共聚,制备了壳聚糖基絮凝剂CTS-g-P(AM-DMC),分别探讨了总单体含量、壳聚糖含量、放电时间、后聚合温度、后聚合时间对CTS-g-P(AM-DMC)接枝效率的影响,并优化了合成条件。采用红外光谱分析和扫描电镜分析对其进行表征,并以活性艳蓝KN-R染料废水来验证其脱色性能。结果表明,总单体的质量分数15%、壳聚糖的质量分数12%、放电时间120 s、后聚合温度70℃,后聚合时间24 h,优化后聚合产物的接枝效率最高可达到68%。优化脱色条件为:絮凝剂投加量200 mg/L,pH=4.0,KN-R初始质量浓度100 mg/L,CTS-g-P(AM-DMC)的脱色性能显著优于单独使用CTS。
CTS-g-P(AM-DMC) flocculant was graft copolymerized of chitosan(CTS), acrylamide(AM) and methacryloyloxyethyl trimethyl ammonium chloride(DMC) by plasma-initiation. The effects of total monomer concentration, percentage of chitosan, discharge time, post-polymerization temperature and post-polymerization time on the grafting efficiency of CTS-g-P(AM-DMC) were investigated, and the synthesis conditions were optimized. Infrared spectroscopy and scanning electron microscopy were used to characterize the graft copolymer, reactive brilliant blue KN-R dye wastewater was used to verify its decolorization performance. The results showed that, when the total monomer mass fraction was 15%, the mass fraction of chitosan was 12%,discharge time was 120 s, post polymerization temperature was 70 ℃, post polymerization time was 24 h, the maximum grafting efficiency was 68% after optimization. The optimal decolorization conditions were as follow, the flocculant dosage was 200 mg/L, the pH was 4.0, the initial mass concentration of KN-R was 100 mg/L, and the decolorization performance of CTS-g-P(AM-DMC) was significantly excellent than that of CTS alone.
CTS-g-P(AM-DMC) flocculant was graft copolymerized of chitosan(CTS), acrylamide(AM) and methacryloyloxyethyl trimethyl ammonium chloride(DMC) by plasma-initiation. The effects of total monomer concentration, percentage of chitosan, discharge time, post-polymerization temperature and post-polymerization time on the grafting efficiency of CTS-g-P(AM-DMC) were investigated, and the synthesis conditions were optimized. Infrared spectroscopy and scanning electron microscopy were used to characterize the graft copolymer, reactive brilliant blue KN-R dye wastewater was used to verify its decolorization performance. The results showed that, when the total monomer mass fraction was 15%, the mass fraction of chitosan was 12%,discharge time was 120 s, post polymerization temperature was 70 ℃, post polymerization time was 24 h, the maximum grafting efficiency was 68% after optimization. The optimal decolorization conditions were as follow, the flocculant dosage was 200 mg/L, the pH was 4.0, the initial mass concentration of KN-R was 100 mg/L, and the decolorization performance of CTS-g-P(AM-DMC) was significantly excellent than that of CTS alone.
引文
[1]ALBADARIN A B,COLLINS M N,NAUSHAD M,et al.Activated lignin-chitosan extruded blends for efficient adsorption of methylene blue[J].Chemical Engineering Journal,2017,307:264-272.
[2]郑怀礼,寿倩影,李香,等.紫外光引发聚合P(AM-MAPTAC)及其响应面优化制备[J].土木建筑与环境工程,2017,39(1):118-124.
[3]CHEN Y X,LI J N,LI Q Q,et al.Enhanced water-solubility,antibacterial activity and biocompati-bility upon introducing sulfobetaine and quaternary ammonium to chitosan[J].Carbohydrate Polymers,2016,143:246-253.
[4]ZHU D,CHENG H H,LI J N,et al.Enhanced water-solubility and antibacterial activity of novel chitosan derivatives modified with quaternary phosphonium salt[J].Materials Science&Engineering C-Materials for Biological Applications,2016,61:79-84.
[5]OYERVIDES-MUNOZ E,POLLE E,ULRICH G,et al.Original method for synthesis of chitosan-based antimicrobial agent by quaternary ammonium grafting[J].Carbohydrate Polymers,2017,157:1922-1932.
[6]LU Q F,ZHENG J D,YU J,et al.Synthesis and adsorption properties for cationic dyes of acrylic acid/vermiculite hydrogel initiated by glow-discharge-electrolysis plasma[J].Advances in Polymer Technology,2016,37(4):996-1007.
[7]YU J,ZHENG J D,LU Q F,et al.Selective adsorption and reusability for Pb2+of chitosan-based microporous polymer[J].Polymer-Korea,2017,41(3):480-489.
[8]隋聚艳.天然高分子絮凝剂处理印染废水研究进展[J].印染助剂,2018,35(1):16-21.
[9]CARTON O,BEN SALEM D,PULPYTEL J,et al.Improvement of the water stability of plasma polymerized acrylic Acid/MBA coatings deposited by tmospheric pressure air plasma jet[J].Plasma Chemistry and Plasma Processing,2015,35(5):819-829.
[10]HUANG M,WANG Y,CAI J,et al.Preparation of dual-function starch-based flocculants for the simultaneous removal of turbidity and inhibition of Escherichia coli in water[J].Water Research,2016,98:128-137.
[11]LI X,ZHENG H L,WANG Y L,et al.Fabricating an enhanced sterilization chitosan-based flocculants:Synthesis,characterization,evaluation of sterilization and flocculation[J].Chemical Engineering Journal,2017,319:119-130.
[12]LIU J W,WANG Y M,FANG Y,et al.Removal of crystal violet and methylene blue from aqueous solutions using the fly ash-based adsorbent material-supported zero-valent iron[J].Journal of Molecular Liquids,2018,250:468-476.
[13]SUN P F,HUI C,KHAN R A,et al.Mechanistic links between magnetic nanoparticles and recovery potential and enhanced capacity for crystal violet of nanoparticles-coated kaolin[J].Journal of Cleaner Production,2017,164:695-702.
[2]郑怀礼,寿倩影,李香,等.紫外光引发聚合P(AM-MAPTAC)及其响应面优化制备[J].土木建筑与环境工程,2017,39(1):118-124.
[3]CHEN Y X,LI J N,LI Q Q,et al.Enhanced water-solubility,antibacterial activity and biocompati-bility upon introducing sulfobetaine and quaternary ammonium to chitosan[J].Carbohydrate Polymers,2016,143:246-253.
[4]ZHU D,CHENG H H,LI J N,et al.Enhanced water-solubility and antibacterial activity of novel chitosan derivatives modified with quaternary phosphonium salt[J].Materials Science&Engineering C-Materials for Biological Applications,2016,61:79-84.
[5]OYERVIDES-MUNOZ E,POLLE E,ULRICH G,et al.Original method for synthesis of chitosan-based antimicrobial agent by quaternary ammonium grafting[J].Carbohydrate Polymers,2017,157:1922-1932.
[6]LU Q F,ZHENG J D,YU J,et al.Synthesis and adsorption properties for cationic dyes of acrylic acid/vermiculite hydrogel initiated by glow-discharge-electrolysis plasma[J].Advances in Polymer Technology,2016,37(4):996-1007.
[7]YU J,ZHENG J D,LU Q F,et al.Selective adsorption and reusability for Pb2+of chitosan-based microporous polymer[J].Polymer-Korea,2017,41(3):480-489.
[8]隋聚艳.天然高分子絮凝剂处理印染废水研究进展[J].印染助剂,2018,35(1):16-21.
[9]CARTON O,BEN SALEM D,PULPYTEL J,et al.Improvement of the water stability of plasma polymerized acrylic Acid/MBA coatings deposited by tmospheric pressure air plasma jet[J].Plasma Chemistry and Plasma Processing,2015,35(5):819-829.
[10]HUANG M,WANG Y,CAI J,et al.Preparation of dual-function starch-based flocculants for the simultaneous removal of turbidity and inhibition of Escherichia coli in water[J].Water Research,2016,98:128-137.
[11]LI X,ZHENG H L,WANG Y L,et al.Fabricating an enhanced sterilization chitosan-based flocculants:Synthesis,characterization,evaluation of sterilization and flocculation[J].Chemical Engineering Journal,2017,319:119-130.
[12]LIU J W,WANG Y M,FANG Y,et al.Removal of crystal violet and methylene blue from aqueous solutions using the fly ash-based adsorbent material-supported zero-valent iron[J].Journal of Molecular Liquids,2018,250:468-476.
[13]SUN P F,HUI C,KHAN R A,et al.Mechanistic links between magnetic nanoparticles and recovery potential and enhanced capacity for crystal violet of nanoparticles-coated kaolin[J].Journal of Cleaner Production,2017,164:695-702.