本文主要研究内容
作者李倩（2019）在《海藻酸钠复合纳米纤维膜对阳离子染料吸附性能研究》一文中研究指出：阳离子染料存在的主要问题是使用后排放的废水处理难度大,这不仅会对环境造成危害,还会造成染料的浪费。目前,国内外解决的主要方法仍是末端治理,没有源头控制的技术。本课题分别采用铸膜法和静电纺丝技术制备海藻酸钠/聚乙烯醇(SA/PVA)复合膜并对阳离子染料的吸附性进行研究,选用氯化钙无水乙醇溶液对SA/PVA复合膜改性,利用改性后的膜吸附阳离子染料,以吸附量和染料去除率为评价指标,研究SA/PVA复合膜对碱性品红染料、亚甲基蓝染料、甲基绿染料的吸附性,采用单因素实验、正交实验等方法研究SA/PVA复合膜对阳离子染料的吸附性能,为采用吸附法处理阳离子染料废水提供一定的理论依据,论文的主要研究工作如下:(1)分别采用静电纺丝法和铸膜法制备SA/PVA复合膜,利用扫描电子显微镜对SA/PVA纳米纤维膜的微观形貌及直径进行分析,使用红外光谱分析仪、X射线光电子能谱仪等测试手段对SA/PVA纳米纤维膜的物质变化进行分析。研究得出SA/PVA膜的最佳纺丝工艺为:SA:PVA的体积比为1:9,纺丝电压为16kV,纺丝距离为15cm,纺丝速度为1.2mL/h。(2)静电纺丝法制备的SA/PVA、SA/PVA/PET复合纳米纤维膜对碱性品红染料进行吸附性研究,以纤维膜对溶液中碱性品红染料的去除率和吸附量为评价指标,采用单因素实验、正交实验确定最佳吸附条件。经吸附后通过对比得出SA/PVA/PET复合纳米纤维膜对碱性品红染料的吸附效果较好。(3)采用铸膜法制备出SA/PVA复合膜,以溶液中染料去除率为评价指标,采用单因素实验、响应面实验设计研究SA/PVA膜对碱性品红染料、亚甲基蓝染料、甲基绿染料的吸附性能,优化吸附条件,通过对比发现,SA/PVA膜对亚甲基蓝染料的吸附效果较好。(4)通过动力学方程和等温吸附模型对染料的吸附过程进行分析,发现Freundlich等温吸附模型能更好的评价SA/PVA复合纳米纤维膜对碱性品红染料的吸附行为。采用铸膜法制备的SA/PVA膜对亚甲基蓝染料的吸附更符合Langmuir等温吸附模型,这两种方法制备出的膜对染料的吸附过程都符合准二级动力学方程,都受化学吸附机理的影响和控制。
Abstract
yang li zi ran liao cun zai de zhu yao wen ti shi shi yong hou pai fang de fei shui chu li nan du da ,zhe bu jin hui dui huan jing zao cheng wei hai ,hai hui zao cheng ran liao de lang fei 。mu qian ,guo nei wai jie jue de zhu yao fang fa reng shi mo duan zhi li ,mei you yuan tou kong zhi de ji shu 。ben ke ti fen bie cai yong zhu mo fa he jing dian fang si ji shu zhi bei hai zao suan na /ju yi xi chun (SA/PVA)fu ge mo bing dui yang li zi ran liao de xi fu xing jin hang yan jiu ,shua yong lv hua gai mo shui yi chun rong ye dui SA/PVAfu ge mo gai xing ,li yong gai xing hou de mo xi fu yang li zi ran liao ,yi xi fu liang he ran liao qu chu lv wei ping jia zhi biao ,yan jiu SA/PVAfu ge mo dui jian xing pin gong ran liao 、ya jia ji lan ran liao 、jia ji lu ran liao de xi fu xing ,cai yong chan yin su shi yan 、zheng jiao shi yan deng fang fa yan jiu SA/PVAfu ge mo dui yang li zi ran liao de xi fu xing neng ,wei cai yong xi fu fa chu li yang li zi ran liao fei shui di gong yi ding de li lun yi ju ,lun wen de zhu yao yan jiu gong zuo ru xia :(1)fen bie cai yong jing dian fang si fa he zhu mo fa zhi bei SA/PVAfu ge mo ,li yong sao miao dian zi xian wei jing dui SA/PVAna mi qian wei mo de wei guan xing mao ji zhi jing jin hang fen xi ,shi yong gong wai guang pu fen xi yi 、Xshe xian guang dian zi neng pu yi deng ce shi shou duan dui SA/PVAna mi qian wei mo de wu zhi bian hua jin hang fen xi 。yan jiu de chu SA/PVAmo de zui jia fang si gong yi wei :SA:PVAde ti ji bi wei 1:9,fang si dian ya wei 16kV,fang si ju li wei 15cm,fang si su du wei 1.2mL/h。(2)jing dian fang si fa zhi bei de SA/PVA、SA/PVA/PETfu ge na mi qian wei mo dui jian xing pin gong ran liao jin hang xi fu xing yan jiu ,yi qian wei mo dui rong ye zhong jian xing pin gong ran liao de qu chu lv he xi fu liang wei ping jia zhi biao ,cai yong chan yin su shi yan 、zheng jiao shi yan que ding zui jia xi fu tiao jian 。jing xi fu hou tong guo dui bi de chu SA/PVA/PETfu ge na mi qian wei mo dui jian xing pin gong ran liao de xi fu xiao guo jiao hao 。(3)cai yong zhu mo fa zhi bei chu SA/PVAfu ge mo ,yi rong ye zhong ran liao qu chu lv wei ping jia zhi biao ,cai yong chan yin su shi yan 、xiang ying mian shi yan she ji yan jiu SA/PVAmo dui jian xing pin gong ran liao 、ya jia ji lan ran liao 、jia ji lu ran liao de xi fu xing neng ,you hua xi fu tiao jian ,tong guo dui bi fa xian ,SA/PVAmo dui ya jia ji lan ran liao de xi fu xiao guo jiao hao 。(4)tong guo dong li xue fang cheng he deng wen xi fu mo xing dui ran liao de xi fu guo cheng jin hang fen xi ,fa xian Freundlichdeng wen xi fu mo xing neng geng hao de ping jia SA/PVAfu ge na mi qian wei mo dui jian xing pin gong ran liao de xi fu hang wei 。cai yong zhu mo fa zhi bei de SA/PVAmo dui ya jia ji lan ran liao de xi fu geng fu ge Langmuirdeng wen xi fu mo xing ,zhe liang chong fang fa zhi bei chu de mo dui ran liao de xi fu guo cheng dou fu ge zhun er ji dong li xue fang cheng ,dou shou hua xue xi fu ji li de ying xiang he kong zhi 。
论文参考文献
论文详细介绍
论文作者分别是来自内蒙古工业大学的李倩，发表于刊物内蒙古工业大学2019-10-18论文，是一篇关于海藻酸钠论文,纳米纤维膜论文,阳离子染料论文,吸附论文,内蒙古工业大学2019-10-18论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自内蒙古工业大学2019-10-18论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：海藻酸钠论文; 纳米纤维膜论文; 阳离子染料论文; 吸附论文; 内蒙古工业大学2019-10-18论文;