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Equilibrium, kinetic and thermodynamic studies of acid soluble lignin adsorption from rice straw hydrolysate by a self-synthesized macro/mesoporous resin
Huang, Qianlin1,2,4; Lin, Xiaoqing1,2,3,5; Xiong, Lian1,2,3; Huang, Chao1,2,3; Zhang, Hairong1,2,3; Luo, Mutan1,2,4; Tian, Lanlan1,2,4; Chen, Xinde1,2,3
2017
Source PublicationRSC ADVANCES
Volume7Issue:39Pages:23896-23906
AbstractA 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c7ra01058c
WOS Subject ExtendedChemistry
WOS KeywordCROSS-LINKED POLYMERS ; FIXED-BED COLUMN ; AQUEOUS-SOLUTION ; BUTANOL FERMENTATION ; ETHANOL-PRODUCTION ; ACTIVATED CARBON ; LEVULINIC ACID ; DETOXIFICATION ; REMOVAL ; BIOMASS
Indexed BySCI
Language英语
Funding OrganizationProject 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 SubjectChemistry, Multidisciplinary
WOS IDWOS:000401525500001
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/14117
Collection中国科学院广州能源研究所
Affiliation1.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
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
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.
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