Equilibrium, kinetic and thermodynamic studies of acid soluble lignin adsorption from rice straw hydrolysate by a self-synthesized macro/mesoporous resin

doi:10.1039/c7ra01058c

GIEC OpenIR > 中国科学院广州能源研究所

	Equilibrium, kinetic and thermodynamic studies of acid soluble lignin adsorption from rice straw hydrolysate by a self-synthesized macro/mesoporous resin
	Huang, Qianlin 1,2,4; Lin, Xiaoqing 1,2,3,5; Xiong, Lian1,2,3 ; Huang, Chao 1,2,3; Zhang, Hairong 1,2,3; Luo, Mutan 1,2,4; Tian, Lanlan 1,2,4; Chen, Xinde1,2,3
	2017
发表期刊	RSC ADVANCES
卷号	7 期号:39 页码:23896-23906
摘要	A self-synthesized HQ-8 resin was prepared using a O/W suspension polymerization technique and employed as a potential adsorbent for the removal of acid soluble lignin (ASL) from rice straw hydrolysate (RSH). The structure and morphology of the HQ-8 resin before and after the adsorption of ASL were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and nitrogen adsorption-desorption isotherms. A series of adsorption conditions such as pH value, adsorbent dose, initial concentration, and temperature were systematically investigated to obtain the optimum process parameters. Within the studied range of ASL concentrations, the adsorption equilibrium was found to follow the Freundlich isotherm model well, with R-2 > 0.988. The rate of ASL adsorption onto the HQ-8 resin was very quick, and equilibrium was reached within 50 min of contact. Furthermore, the maximum adsorption capacity of ASL on the HQ-8 resin was 64.61 mg g(-1) at 298 K at an initial solution pH of 1. The regression results revealed that the ASL adsorption kinetics was represented accurately by a pseudo-second-order model. The efficiency of the HQ-8 resin for the spontaneous and exothermic adsorption of ASL is attributed to the hydrophobic interaction between the cross-linked benzene ring of the HQ-8 resin and the aromatic ring of ASL. In addition, the activation energy of ASL adsorption onto the HQ-8 resin was 35.99 kJ mol(-1). In summary, the present adsorption studies of ASL from RSH revealed the potential of a self-synthesized HQ-8 resin to be applied as an alternative adsorbent for lignocellulose hydrolysate detoxification.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c7ra01058c
研究领域[WOS]	Chemistry
关键词[WOS]	CROSS-LINKED POLYMERS ; FIXED-BED COLUMN ; AQUEOUS-SOLUTION ; BUTANOL FERMENTATION ; ETHANOL-PRODUCTION ; ACTIVATED CARBON ; LEVULINIC ACID ; DETOXIFICATION ; REMOVAL ; BIOMASS
收录类别	SCI
语种	英语
项目资助者	Project of National Natural Science Foundation of China(51508547) ; Pearl River S&T Nova Program of Guangzhou(201710010096) ; Science and Technology Planning Project of Guangdong Province, China(2016A010104009) ; Project of Huaian Science and Technology(HAS201623) ; Foundation of Director of Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences(y407r41001) ; Project of Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development(Y709jh1001)
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000401525500001
引用统计	被引频次：30[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/14117
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 5.Guangdong Univ Technol, Fac Chem Engn & Light Ind, 100 Waihuan Xi Rd, Guangzhou 510006, Guangdong, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Huang, Qianlin,Lin, Xiaoqing,Xiong, Lian,et al. Equilibrium, kinetic and thermodynamic studies of acid soluble lignin adsorption from rice straw hydrolysate by a self-synthesized macro/mesoporous resin[J]. RSC ADVANCES,2017,7(39):23896-23906.
APA	Huang, Qianlin.,Lin, Xiaoqing.,Xiong, Lian.,Huang, Chao.,Zhang, Hairong.,...&Chen, Xinde.(2017).Equilibrium, kinetic and thermodynamic studies of acid soluble lignin adsorption from rice straw hydrolysate by a self-synthesized macro/mesoporous resin.RSC ADVANCES,7(39),23896-23906.
MLA	Huang, Qianlin,et al."Equilibrium, kinetic and thermodynamic studies of acid soluble lignin adsorption from rice straw hydrolysate by a self-synthesized macro/mesoporous resin".RSC ADVANCES 7.39(2017):23896-23906.