title: Mechanical and dye adsorption properties of graphene oxide/chitosan composite fibers prepared by wet spinning.
abstract: Graphene oxide/chitosan composite fibers were prepared by a wet spinning method, and their mechanical properties were investigated. Experimental results showed that the introduction of graphene oxide at 4 wt% loading can improve the tensile strengths of chitosan fibers. Batch adsorption experiments were carried out to study the effect of various parameters, such as the initial pH value, adsorbent dosage, contact time and temperature on adsorption of fuchsin acid dye. The Langmuir model was used to fit the experimental data of adsorption isotherm, and kinetic studies showed that the adsorption data followed the pseudo-second order model. Thermodynamic studies indicated that the adsorption of fuchsin acid dye on graphene oxide/chitosan fibers was a spontaneous and exothermic process. Our results indicate that the graphene oxide/chitosan fibers have excellent mechanical properties and can serve as a promising adsorbent for the removal of dyes from aqueous solutions.
authors: Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, 308 Ningxia Road, Qingdao, Shandong 266071, China. Electronic address: liyanhui@tsinghua.org.cn.
authors: Yanhui
authors: Y
authors: Li
authors: Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, 308 Ningxia Road, Qingdao, Shandong 266071, China.
authors: Jiankun
authors: J
authors: Sun
authors: Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, 308 Ningxia Road, Qingdao, Shandong 266071, China.
authors: Qiuju
authors: Q
authors: Du
authors: Department of Advanced Materials and Nanotechnology, College of Engineering, Peking University, Beijing 100871, China.
authors: Luhui
authors: L
authors: Zhang
authors: Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, 308 Ningxia Road, Qingdao, Shandong 266071, China.
authors: Xiaoxia
authors: X
authors: Yang
authors: Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, 308 Ningxia Road, Qingdao, Shandong 266071, China.
authors: Shaoling
authors: S
authors: Wu
authors: Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, 308 Ningxia Road, Qingdao, Shandong 266071, China.
authors: Yanzhi
authors: Y
authors: Xia
authors: Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, 308 Ningxia Road, Qingdao, Shandong 266071, China.
authors: Zonghua
authors: Z
authors: Wang
authors: Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, 308 Ningxia Road, Qingdao, Shandong 266071, China.
authors: Linhua
authors: L
authors: Xia
authors: Department of Advanced Materials and Nanotechnology, College of Engineering, Peking University, Beijing 100871, China. Electronic address: anyuan@pku.edu.cn.
authors: Anyuan
authors: A
authors: Cao
keywords: Adsorption; Chitosan; Fibers; Fuchsin acid; Graphene oxide