Modeling and optimization of formic acid adsorption by multiwall carbon nanotube using response surface methodology

被引:19
作者
Celebican, Ozge [1 ]
Inci, Ismail [1 ]
Baylan, Nilay [1 ]
机构
[1] Istanbul Univ Cerrahpasa, Dept Chem Engn, TR-34320 Istanbul, Turkey
关键词
Formic acid; Multiwall carbon nanotube; Adsorption; Response surface methodology; AQUEOUS-SOLUTIONS; REACTIVE EXTRACTION; CARBOXYLIC-ACIDS; LEVULINIC ACID; COMPETITIVE ADSORPTION; SUCCINIC ACID; SINGLE; SEPARATION; BINARY; EQUILIBRIA;
D O I
10.1016/j.molstruc.2019.127312
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Formic acid is extensively utilized in various chemical industries and applications. So, formic acid can be present in the wastewaters of these industries. It is widely produced in aqueous solutions by fermentation processes. And also, it forms as a by-product in the production of chemical processes. Thus, the removal of formic acid from waste streams and production medium is very significant topic. The objective of this study is to remove formic acid from its aqueous solutions by adsorption and to optimize the adsorption process. In this context, in this study, the optimal conditions for formic acid adsorption by multiwall carbon nanotube were investigated by using response surface methodology. Face-centered central composite design based on response surface methodology was applied to investigate the effects of the initial acid concentration (2-10%, w/w), amount of adsorbent (0.01-0.03 g) and temperature (25-45 degrees C) on the adsorption capacity (q(e), mg acid adsorbed/g adsorbent). The acquired experimental results were appraised by means of analysis of variance. A second-degree model equation for the adsorption capacity was obtained to explain adsorption characteristics of formic acid by multiwall carbon nanotube. The acquired model equation was well in agreement with the experimental results. The response surface plots were illustrated and they also supported the compatibility of the model equation. The design study also showed that MWCNT is an effective adsorbent for the removal of formic acid from aqueous solutions. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页数:6
相关论文
共 43 条
[1]  
Abedi Z., 2017, Journal of Human, Environment and Health Promotion, V2, P253, DOI 10.29252/jhehp.2.4.253
[2]   Transport of formic acid through anion exchange membranes by diffusion dialysis and electro-electro dialysis [J].
Akgemci, EG ;
Ersöz, M ;
Atalay, T .
SEPARATION SCIENCE AND TECHNOLOGY, 2004, 39 (01) :165-184
[3]   Investigation of the separation of carboxylic acids from aqueous solutions using a pilot scale membrane unit [J].
Asci, Yavuz Selim ;
Dramur, Umur ;
Bilgin, Mehmet .
JOURNAL OF MOLECULAR LIQUIDS, 2017, 248 :391-398
[4]   A Comparison of Central Composite Design and Taguchi Method for Optimizing Fenton Process [J].
Asghar, Anam ;
Raman, Abdul Aziz Abdul ;
Daud, Wan Mohd Ashri Wan .
SCIENTIFIC WORLD JOURNAL, 2014,
[5]   Modeling and optimization II: Comparison of estimation capabilities of response surface methodology with artificial neural networks in a biochemical reaction [J].
Bas, Deniz ;
Boyaci, Ismail H. .
JOURNAL OF FOOD ENGINEERING, 2007, 78 (03) :846-854
[6]   Ionic liquids as bulk liquid membranes on levulinic acid removal: A design study [J].
Baylan, Nilay ;
Cehreli, Suheyla .
JOURNAL OF MOLECULAR LIQUIDS, 2018, 266 :299-308
[7]   Adsorption of lead and copper on bentonite and grapeseed activated carbon in single- and binary-ion systems [J].
Baylan, Nilay ;
Mericboyu, Aysegul Ersoy .
SEPARATION SCIENCE AND TECHNOLOGY, 2016, 51 (14) :2360-2368
[8]   Adsorption of isonicotinic acid from aqueous solution using multi-walled carbon nanotubes/Fe3O4 [J].
Bhatia, Drishti ;
Datta, Dipaloy ;
Joshi, Abhishek ;
Gupta, Sagar ;
Gote, Yogesh .
JOURNAL OF MOLECULAR LIQUIDS, 2019, 276 :163-169
[9]   Reactive extraction and recovery of levulinic acid, formic acid and furfural from aqueous solutions containing sulphuric acid [J].
Brouwer, Thomas ;
Blahusiak, Marek ;
Babic, Katarina ;
Schuur, Boelo .
SEPARATION AND PURIFICATION TECHNOLOGY, 2017, 185 :186-195
[10]   Extraction equilibria of formic and acetic acids from aqueous solution by phosphate-containing extractants [J].
Cai, WB ;
Zhu, SL ;
Piao, XL .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2001, 46 (06) :1472-1475