|本期目录/Table of Contents|

[1]李博雅,姜杭杰,安娜莹,等.石墨烯/炭气凝胶的制备及对TNT的吸附性能[J].南京工业大学学报(自然科学版),2019,41(05):644-648.[doi:10.3969/j.issn.1671-7627.2019.05.016]
 LI Boya,JIANG Hangjie,AN Naying,et al.Preparation of graphene/carbon aerogel and its adsorption for TNT[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2019,41(05):644-648.[doi:10.3969/j.issn.1671-7627.2019.05.016]
点击复制

石墨烯/炭气凝胶的制备及对TNT的吸附性能()
分享到:

《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
41
期数:
2019年05期
页码:
644-648
栏目:
出版日期:
2019-10-22

文章信息/Info

Title:
Preparation of graphene/carbon aerogel and its adsorption for TNT
文章编号:
1671-7627(2019)05-0644-05
作者:
李博雅12姜杭杰1安娜莹1李思锐1崔艺1崔升12沈晓冬12
1.南京工业大学 材料科学与工程学院,江苏 南京 211800; 2.南京工业大学 江苏先进无机功能复合材料协同创新中心,江苏 南京 211800
Author(s):
LI Boya12JIANG Hangjie1AN Naying1LI Sirui1CUI Yi1CUI Sheng12SHEN Xiaodong12
1.College of Materials Science and Engineering,Nanjing Tech University,Nanjing 211800,China; 2.Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites,Nanjing Tech University,Nanjing 211800, China
关键词:
石墨烯 炭气凝胶 硝基苯 吸附 有机污染物
Keywords:
graphene carbon aerogel nitrobenzene adsorption organic pollutant
分类号:
TQ138.1
DOI:
10.3969/j.issn.1671-7627.2019.05.016
文献标志码:
A
摘要:
采用溶胶-凝胶法和CO2超临界干燥工艺,以间苯二酚(R)、甲醛(F)、氧化石墨烯(GO)、抗坏血酸(VC)为原料,制备完整块状的石墨烯/炭气凝胶(GCA)。采用X线衍射仪(XRD)、激光拉曼光谱仪(Raman)、扫描电子显微镜(SEM)、BET比表面积和孔径分布测试等对制备的GCA进行表征。以GCA为吸附剂,对水溶液中三硝基甲苯(TNT)进行吸附实验。结果表明:所制GCA具有低密度(0.04 cm3/g)、高比表面积(2 471 m2/g)和大总孔容(2.49 cm3/g)等特点; 在温度为25 ℃,振荡频率为200 r/min,pH约为7,吸附时间为150 min,初始TNT质量浓度为80 mg/L的实验条件下,GCA样品对水溶液中的TNT吸附率可达97%,比市售活性炭高出约27%,经5次循环实验后GCA的再生率为93.8%,再生性能较好可以重复使用。
Abstract:
Graphene/carbon aerogel(GCA)was prepared by sol-gel method and CO2 supercritical drying by using resorcinol(R), formaldehyde(F), graphene oxide(GO)and ascorbic acid(VC)as raw materials. The structure of GCA was characterized by X-Ray diffraction(XRD), Raman spectroscopy, scanning electron microscopy(SEM), BET specific surface area and pore size distribution. Adsorption performance of GCA in removing trinitrotoluene(TNT)in water was investigated. Results showed that the density, the special surface area and the pore volume of GCA were 0.04 cm3/g, 2 471 m2/g and 2.49 cm3/g, respectively. The optimum adsorption conditions were temperature of 25 ℃, shaking frequency of 200 r/min, pH around 7, adsorption time of 150 min and initial TNT concentration of 80 mg/L. Under such conditions, the adsorption rate of TNT in aqueous solution by GCA was 97%, which was about 27% higher than that by a commercial activated carbon. After 5 cycles of adsorption and desorption, GCA regeneration rate was 93.8%.

参考文献/References:

[1] YAO Y,XUE M,CHEN J,et al.An amphiphilic pillar[5] arene:synthesis,controllable self-assembly in water,and application in calcein release and TNT adsorption.[J].Journal of the American Chemical Society,2012,134(38):15712.
[2] 崔升,刘学涌,刘渝,等.SiO2气凝胶对废水中硝基苯的吸附性能研究[J].中国科学(技术科学),2011,41(2):229.
[3] KEMP K C,SEEMA H,SALEH M,et al.Environmental applications using graphene composites:water remediation and gas adsorption.[J].Nanoscale,2013,5(8):3149.
[4] SUN H,CAO L,LU L.Bacteria promoted hierarchical carbon materials for high-performance supercapacitor[J].Energy & Environmental Science,2012,5(3):6206.
[5] HAN Z,TANG Z,LI P,et al.Ammonia solution strengthened three-dimensional macro-porous graphene aerogel[J].Nanoscale,2013,5(12):5462.
[6] WORSLEY M A,PAUZAUSKIE P J,OLSON T Y,et al.Synthesis of graphene aerogel with high electrical conductivity[J].Journal of the American Chemical Society,2010,132(40):14067.
[7] 孙怡然,杨明轩,于飞,等.石墨烯气凝胶吸附剂的制备及其在水处理中的应用[J].化学进展,2015,27(8):1133.
[8] WORSLEY M A,OLSON T Y,LEE J R,et al.High surface area,sp2-cross-linked three-dimensional graphene monoliths.[J].Journal of Physical Chemistry Letters,2011,2(8):921.
[9] GUI C X,WANG Q Q,HAO S M,et al.Sandwichlike magnesium silicate/reduced graphene oxide nanocomposite for enhanced Pb2 and methylene blue adsorption.[J].ACS Applied Materials & Interfaces,2014,6(16):14653.
[10] CHEN C,YANG Q H,YANG Y,et al.Self-assembled free-standing graphite oxide membrane[J].Advanced Materials,2009,21(29):3007.
[11] QIAN Y,ISMAIL I M,STEIN A.Ultralight,high-surface-area,multifunctional graphene-based aerogels from self-assembly of graphene oxide and resol[J].Carbon,2014,68(3):221.
[12] 易上琪,刘洪波,夏笑虹,等.石墨烯/炭气凝胶的制备及其结构与性能研究[J].无机材料学报,2015,30(7):757.
[13] 吴战武,刘渝,沈晓冬,等.MTES疏水改性SiO2气凝胶修饰活性炭复合材料的制备及结构表征[J].南京工业大学学报(自然科学版),2012,34(3):103.

相似文献/References:

[1]顾正彬,季根华,卢明辉.二维碳材料——石墨烯研究进展[J].南京工业大学学报(自然科学版),2010,32(03):105.
 GU Zhengbin,JI Genhua,LU MingHui.Research progress of 2-D carbon material:graphene[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2010,32(05):105.
[2]付翠利,杨晓宁.水溶液中石墨烯剥离的分子动力学模拟[J].南京工业大学学报(自然科学版),2013,35(04):87.[doi:10.3969/j.issn.1671-7627.2013.04.018]
 FU Cuili,YANG Xiaoning.Molecular dynamics simulation of graphene exfoliation in water[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(05):87.[doi:10.3969/j.issn.1671-7627.2013.04.018]
[3]张玉婷,安立宝,蔡小勇.局部焦耳热法降低石墨烯接触电阻的试验研究[J].南京工业大学学报(自然科学版),2018,40(02):47.[doi:10.3969/j.issn.1671-7627.2018.02.008]
 ZHANG Yuting,AN Libao,CAI Xiaoyong.Experiments on the contact resistance reduction of graphene by local Joule heating[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2018,40(05):47.[doi:10.3969/j.issn.1671-7627.2018.02.008]

备注/Memo

备注/Memo:
收稿日期:2018-05-28
基金项目:江苏高校优势学科建设工程
作者简介:李博雅(1992—),女,E-mail:462376927@qq.com; 沈晓冬(联系人),教授,E-mail:xdshen@njtech.edu.cn; 崔升(联系人),教授,E-mail:scui@njtech.edu.cn.
引用本文:李博雅,姜杭杰,安娜莹,等.石墨烯/炭气凝胶的制备及对TNT的吸附性能[J].南京工业大学学报(自然科学版),2019,41(5):644-648..
更新日期/Last Update: 2019-09-30