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作者帕热扎提帕它尔（2019）在《新型液相吸附试样池的设计并用于吸附过程的原位检测》一文中研究指出：吸附是表面现象,其定义为两相之间的表面或界面处的特定组分的浓度增加或发生改变的现象。与气体吸附比较,液相吸附体系复杂,目前液相吸附仍是通过手工取样,离线检测的方式进行定量分析,存在过程复杂,数据量小,刚开始的快速吸附阶段的检测难等缺点。本文在课题组前期工作的基础上,优化设计了一种新型液相吸附试样池(Y形吸附池),并将其与光纤传感光谱仪结合,实现液相吸附过程的原位自动在线检测并分析。新的系统主要由光纤光谱仪、光源和Y形吸附池组成;其中Y形吸附池是由有侧口和内插管的锥形瓶、加热磁力搅拌器、温度探测器、浸入式光纤传感探头组成。在吸附系统中吸附剂与光纤传感探头的隔离方式从前期的用尼龙吸附袋将吸附剂包裹变成将下端接有尼龙网的内插管放到有侧口的锥形瓶内来达到探头与吸附剂的上下隔离的目的方式。内插管不仅消除吸附剂颗粒对光纤传感探头检测干扰,而且使原位吸附检测更接近传统吸附中吸附剂与吸附质的接触方式,从而实现原位检测。文章中分别选择大孔吸附树脂HPD100和MOFs材料HKUST-1对芦丁和二苯并噻吩两种分析物的吸附为模型建立光纤光谱仪在190-660 nm波长范围内液相吸附原位测定方法。通过本系统实现了液相吸附动力学原位检测、吸附热力学的规律的研究和易挥发有机体系的原位检测。1.通过考察4 cm,5 cm,6 cm长的内插管对吸附传质的影响,最终选择5 cm长的内插管是后续实验所用的最佳内插管。在5 cm内插管,200目尼龙隔离网的条件下比较了Y形吸附池,吸附袋和传统吸附三种吸附的比较,得出结论吸附速率大小顺序为传统吸附>Y形吸附池>吸附袋,吸附达到平衡后,平衡吸附量基本相等。考察了80~400目的七种孔径的尼龙网,最终选择100目尼龙网为最佳隔离网,并在5 cm内插管和100目尼龙网的条件下比较了借助Y形吸附池和吸附袋的两种吸附模式,并得出用Y形吸附池时的吸附速率明显高于用吸附袋时的吸附速率结论,最后都基本达到了吸附平衡,且吸附量相同,说明Y形吸附池在原位检测的前提下能够有效提高了吸附速率,适合用于液相吸附的原位检测。2.Y形吸附池跟光纤传感原位液相检测装置结合后,光谱仪不受温度影响,输出的信号较稳定,说明优化的系统能够用于吸附热力学的原位检测。利用新系统做了吸附动力学实验,拟合吸附动力学模型,发现准二级动力学模型线性相关系数R~2大于准一级动力学模型的线性相关系数,因此准二级动力学模型更符合拟合吸附动力学数据,吸附速率常数随着温度的升高而增大。利用新系统做了吸附热力学实验,从计算得到的热力学参数可看出,温度范围为303 K到323 K时,△H,△G和△S均为负值,HPD100对芦丁的吸附是一个放热的、能自发进行的、有序排列的过程。3.将二苯并噻吩为模型硫化物,溶有二苯并噻吩的环己烷为模拟汽油,用中空纤维多孔膜保护的方法进行MOFs材料HKUST-1对模拟汽油中DBT的吸附检测实验。用光纤光谱仪测得的DBT环己烷溶液的标准曲线为y=0.0104x-0.0231,R~2=0.9988(326 nm);HKUST-1的最佳预处理温度为150℃,最佳预处理时间为2 h。通过间歇吸附得到HKUST-1对DBT的等温吸附参数,可得结论为Langmuir模型更符合模拟吸附数据。通过光纤传感原位液相吸附检测系统,检测了HKUST-1对小体积的模拟汽油中DBT的吸附全过程,实现了挥发性有机溶剂体系的原位检测。
Abstract
xi fu shi biao mian xian xiang ,ji ding yi wei liang xiang zhi jian de biao mian huo jie mian chu de te ding zu fen de nong du zeng jia huo fa sheng gai bian de xian xiang 。yu qi ti xi fu bi jiao ,ye xiang xi fu ti ji fu za ,mu qian ye xiang xi fu reng shi tong guo shou gong qu yang ,li xian jian ce de fang shi jin hang ding liang fen xi ,cun zai guo cheng fu za ,shu ju liang xiao ,gang kai shi de kuai su xi fu jie duan de jian ce nan deng que dian 。ben wen zai ke ti zu qian ji gong zuo de ji chu shang ,you hua she ji le yi chong xin xing ye xiang xi fu shi yang chi (Yxing xi fu chi ),bing jiang ji yu guang qian chuan gan guang pu yi jie ge ,shi xian ye xiang xi fu guo cheng de yuan wei zi dong zai xian jian ce bing fen xi 。xin de ji tong zhu yao you guang qian guang pu yi 、guang yuan he Yxing xi fu chi zu cheng ;ji zhong Yxing xi fu chi shi you you ce kou he nei cha guan de zhui xing ping 、jia re ci li jiao ban qi 、wen du tan ce qi 、jin ru shi guang qian chuan gan tan tou zu cheng 。zai xi fu ji tong zhong xi fu ji yu guang qian chuan gan tan tou de ge li fang shi cong qian ji de yong ni long xi fu dai jiang xi fu ji bao guo bian cheng jiang xia duan jie you ni long wang de nei cha guan fang dao you ce kou de zhui xing ping nei lai da dao tan tou yu xi fu ji de shang xia ge li de mu de fang shi 。nei cha guan bu jin xiao chu xi fu ji ke li dui guang qian chuan gan tan tou jian ce gan rao ,er ju shi yuan wei xi fu jian ce geng jie jin chuan tong xi fu zhong xi fu ji yu xi fu zhi de jie chu fang shi ,cong er shi xian yuan wei jian ce 。wen zhang zhong fen bie shua ze da kong xi fu shu zhi HPD100he MOFscai liao HKUST-1dui lu ding he er ben bing sai fen liang chong fen xi wu de xi fu wei mo xing jian li guang qian guang pu yi zai 190-660 nmbo chang fan wei nei ye xiang xi fu yuan wei ce ding fang fa 。tong guo ben ji tong shi xian le ye xiang xi fu dong li xue yuan wei jian ce 、xi fu re li xue de gui lv de yan jiu he yi hui fa you ji ti ji de yuan wei jian ce 。1.tong guo kao cha 4 cm,5 cm,6 cmchang de nei cha guan dui xi fu chuan zhi de ying xiang ,zui zhong shua ze 5 cmchang de nei cha guan shi hou xu shi yan suo yong de zui jia nei cha guan 。zai 5 cmnei cha guan ,200mu ni long ge li wang de tiao jian xia bi jiao le Yxing xi fu chi ,xi fu dai he chuan tong xi fu san chong xi fu de bi jiao ,de chu jie lun xi fu su lv da xiao shun xu wei chuan tong xi fu >Yxing xi fu chi >xi fu dai ,xi fu da dao ping heng hou ,ping heng xi fu liang ji ben xiang deng 。kao cha le 80~400mu de qi chong kong jing de ni long wang ,zui zhong shua ze 100mu ni long wang wei zui jia ge li wang ,bing zai 5 cmnei cha guan he 100mu ni long wang de tiao jian xia bi jiao le jie zhu Yxing xi fu chi he xi fu dai de liang chong xi fu mo shi ,bing de chu yong Yxing xi fu chi shi de xi fu su lv ming xian gao yu yong xi fu dai shi de xi fu su lv jie lun ,zui hou dou ji ben da dao le xi fu ping heng ,ju xi fu liang xiang tong ,shui ming Yxing xi fu chi zai yuan wei jian ce de qian di xia neng gou you xiao di gao le xi fu su lv ,kuo ge yong yu ye xiang xi fu de yuan wei jian ce 。2.Yxing xi fu chi gen guang qian chuan gan yuan wei ye xiang jian ce zhuang zhi jie ge hou ,guang pu yi bu shou wen du ying xiang ,shu chu de xin hao jiao wen ding ,shui ming you hua de ji tong neng gou yong yu xi fu re li xue de yuan wei jian ce 。li yong xin ji tong zuo le xi fu dong li xue shi yan ,ni ge xi fu dong li xue mo xing ,fa xian zhun er ji dong li xue mo xing xian xing xiang guan ji shu R~2da yu zhun yi ji dong li xue mo xing de xian xing xiang guan ji shu ,yin ci zhun er ji dong li xue mo xing geng fu ge ni ge xi fu dong li xue shu ju ,xi fu su lv chang shu sui zhao wen du de sheng gao er zeng da 。li yong xin ji tong zuo le xi fu re li xue shi yan ,cong ji suan de dao de re li xue can shu ke kan chu ,wen du fan wei wei 303 Kdao 323 Kshi ,△H,△Ghe △Sjun wei fu zhi ,HPD100dui lu ding de xi fu shi yi ge fang re de 、neng zi fa jin hang de 、you xu pai lie de guo cheng 。3.jiang er ben bing sai fen wei mo xing liu hua wu ,rong you er ben bing sai fen de huan ji wan wei mo ni qi you ,yong zhong kong qian wei duo kong mo bao hu de fang fa jin hang MOFscai liao HKUST-1dui mo ni qi you zhong DBTde xi fu jian ce shi yan 。yong guang qian guang pu yi ce de de DBThuan ji wan rong ye de biao zhun qu xian wei y=0.0104x-0.0231,R~2=0.9988(326 nm);HKUST-1de zui jia yu chu li wen du wei 150℃,zui jia yu chu li shi jian wei 2 h。tong guo jian xie xi fu de dao HKUST-1dui DBTde deng wen xi fu can shu ,ke de jie lun wei Langmuirmo xing geng fu ge mo ni xi fu shu ju 。tong guo guang qian chuan gan yuan wei ye xiang xi fu jian ce ji tong ,jian ce le HKUST-1dui xiao ti ji de mo ni qi you zhong DBTde xi fu quan guo cheng ,shi xian le hui fa xing you ji rong ji ti ji de yuan wei jian ce 。
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论文作者分别是来自新疆大学的帕热扎提帕它尔，发表于刊物新疆大学2019-07-23论文，是一篇关于新型吸附试样池论文,液相吸附论文,原位检测论文,大孔树脂论文,新疆大学2019-07-23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，资料来自新疆大学2019-07-23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：新型吸附试样池论文; 液相吸附论文; 原位检测论文; 大孔树脂论文; 新疆大学2019-07-23论文;