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[1]熊峰,邱鸣慧,范益群.疏水性Al2O3膜在真空膜蒸馏中的应用[J].南京工业大学学报(自然科学版),2018,40(01):40-45.[doi:10.3969/j.issn.1671-7627.2018.01.007]
 XIONG Feng,QIU Minghui,FAN Yiqun.Application of hydrophobic alumina membranes in vacuum membrane distillation[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2018,40(01):40-45.[doi:10.3969/j.issn.1671-7627.2018.01.007]
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疏水性Al2O3膜在真空膜蒸馏中的应用()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
40
期数:
2018年01期
页码:
40-45
栏目:
出版日期:
2018-01-20

文章信息/Info

Title:
Application of hydrophobic alumina membranes in vacuum membrane distillation
文章编号:
1671-7627(2018)01-0040-06
作者:
熊峰邱鸣慧范益群
南京工业大学 化工学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
XIONG FengQIU MinghuiFAN Yiqun
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
表面接枝 Al2O3 真空膜蒸馏 脱盐
Keywords:
surface grafting alumina membrane vacuum membrane distillation desalination
分类号:
TQ028.8
DOI:
10.3969/j.issn.1671-7627.2018.01.007
文献标志码:
A
摘要:
采用表面接枝改性法,将十六烷基三甲氧基硅烷(C16)接枝于陶瓷膜表面,获得疏水性Al2O3膜。傅里叶红外光谱结果表明,C16接枝到陶瓷膜表面; 接触角实验结果显示:接枝C16分子后的Al2O3膜表面呈现疏水特性,接触角为158°。将改性后的Al2O3膜应用于真空膜蒸馏(VMD)的脱盐实验中,结果表明:在料液流速160 L/h、料液温度70 ℃、真空度0.095 MPa时,VMD过程可以获得较高渗透通量。将疏水性Al2O3膜应用在VMD过程的稳定性实验中,在300 min的运行过程中,渗透通量基本稳定在20 kg/(m2·h),脱盐率大于99.9%。
Abstract:
The hydrophobic ceramic membrane was prepared via surface modification,grafting by hexadecyltrimethoxysilane(C16)molecules.Fourier transform infrared spectroscopy(FT-IR)confirmed the grafting of C16 molecules onto the ceramic membrane surface.The contact angle values of C16 modified alumina membrane was 158° by water contact angle measurements,which showed good hydrophobic character.This kind of modified alumina ceramic was applied in vacuum membrane distillation(VMD)process of NaCl solutions.The higher permeate flux was achieved at flow rate 160 L/h,feed temperature of 70 ℃,vacuum of 0.095 MPa.The VMD performance of hydrophobic alumina membrane under the optimal conditions was studied.During the 300 min operation process,the flux was about 20 kg/(m2·h),and the salt rejection could be stable at high values(>99.9%).

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-05-09
基金项目:国家高技术研究发展计划(863计划)(2012AA03A606); 江苏省高校优势学科建设工程资助(PAPD)
作者简介:熊峰(1991—),女,江苏盐城人,硕士,主要研究方向为膜材料的改性与应用; 范益群(联系人)教授,E-mail:yiqunfan@njtech.edu.cn.
引用本文:熊峰,邱鸣慧,范益群.疏水性Al2O3膜在真空膜蒸馏中的应用[J].南京工业大学学报(自然科学版),2018,40(1):40-45..
更新日期/Last Update: 2018-01-18