Fluorine-Free Oil Absorbents Made from Cellulose Nanofibril Aerogels

被引：200

作者：

Mulyadi, Arie ^{[1
]}

Zhang, Zhe ^{[1
]}

Deng, Yulin ^{[1
]}

机构：

[1] Georgia Inst Technol, Renewable Bioprod Inst, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 04期

关键词：

cellulose nanofibrils; hydrophobic; aerogel; styrene-acrylic copolymer; oil absorption; NANOCOMPOSITE PARTICLES; NANOCELLULOSE AEROGELS; SURFACE; POLYMERIZATION; SEPARATION; ACRYLATE; SPONGES;

D O I：

10.1021/acsami.5b10985

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Aerogels based on cellulose nanofibrils (CNFs) have been of great interest as absorbents due to their high absorption capacity, low density, biodegradability, and large surface area. Hydrophobic aerogels have been designed to give excellent oil absorption tendency from water. Herein, we present an in situ method for CNF surface modification and hydrophobic aerogel preparation. Neither solvent exchange nor fluorine chemical is used in aerogel preparations. The as prepared hydrophobic aerogels exhibit low density (23.2 mg/cm(-3)), high porosity (98.5%), good flexibility, and solvent induced shape recovery property. Successful surface modification was confirmed through field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and water contact angle measurements. The hydrophobic aerogels show high absorption capacities for various oils, depending on liquid density, up to 47X their original weight but with low water uptake (<0.5 g/g aerogel).

引用

页码：2732 / 2740

页数：9

共 46 条

[1] Properties and characterization of hydrophobized microfibrillated cellulose [J].

Andresen, Martin ;

Johansson, Leena-Sisko ;

Tanem, Bjorn Steinar ;

Stenius, Per .

CELLULOSE, 2006, 13 (06) :665-677

[2]

Annable T, 2004, PROG COLL POL SCI S, V124, P159

[3]

Baeza J, 2001, WOOD AND CELLULOSIC CHEMISTRY, SECOND EDITION, P275

[4] Spongy Graphene as a Highly Efficient and Recyclable Sorbent for Oils and Organic Solvents [J].

Bi, Hengchang ;

Xie, Xiao ;

Yin, Kuibo ;

Zhou, Yilong ;

Wan, Shu ;

He, Longbing ;

Xu, Feng ;

Banhart, Florian ;

Sun, Litao ;

Ruoff, Rodney S. .

ADVANCED FUNCTIONAL MATERIALS, 2012, 22 (21) :4421-4425

[5] Polymer encapsulation of surface-modified carbon blacks using surfactant-free emulsion polymerisation [J].

Casado, Rosa A. ;

Lovell, Peter A. ;

Navabpour, Parnia ;

Stanford, John L. .

POLYMER, 2007, 48 (09) :2554-2563

[6] Ultra porous nanocellulose aerogels as separation medium for mixtures of oil/water liquids [J].

Cervin, Nicholas Tchang ;

Aulin, Christian ;

Larsson, Per Tomas ;

Wagberg, Lars .

CELLULOSE, 2012, 19 (02) :401-410

[7]

Chapman RA, 2007, WOODHEAD TEXT SER, P330, DOI 10.1533/9781845691998.330

[8] Density controlled oil uptake and beyond: from carbon nanotubes to graphene nanoribbon aerogels [J].

Chen, Liang ;

Du, Ran ;

Zhang, Jin ;

Yi, Tao .

JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (41) :20547-20553

[9] Synthesis of raspberry-like PMMA/SiO2 nanocomposite particles via a surfactant-free method [J].

Chen, M ;

Wu, LM ;

Zhou, SX ;

You, B .

MACROMOLECULES, 2004, 37 (25) :9613-9619

[10] Mechanical and magnetic properties of metal fibre networks, with and without a polymeric matrix [J].

Clyne, TW ;

Markaki, AE ;

Tan, JC .

COMPOSITES SCIENCE AND TECHNOLOGY, 2005, 65 (15-16) :2492-2499

← 1 2 3 4 5 →