title: Efficient catalytic system for the direct transformation of lignocellulosic biomass to furfural and 5-hydroxymethylfurfural.
abstract: A feasible approach was developed for the co-production of 5-hydroxymethylfurfural (5-HMF) and furfural from corncob via a new porous polytriphenylamine-SO3H (SPTPA) solid acid catalyst in lactone solvents. XRD, SEM, XPS, N2adsorption-desorption, elemental analysis, TG-DTA, acid-base titration and FTIR spectroscopy techniques were used to characterize the catalyst. This study demonstrates and optimizes the catalytic performance of SPTPA and solvent selection. SPTPA was found to exhibit superior catalytic ability in γ-valerolactone (GVL). Under the optimum reaction conditions, simultaneously encouraging yields of furfural (73.9%) and 5-HMF (32.3%) were achieved at 448K. The main advantages of this process include reasonable yields of both 5-HMF and furfural in the same reaction system, practical simplicity for the raw biomass utilization, and the use of a safe and environmentally benign solvent.
authors.affiliation: College of Environmental and Municipal Engineering, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Key Laboratory of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, Xi'an 710055, PR China. Electronic address: zhangluxinxx@126.com.
authors.forename: Luxin
authors.initials: L
authors.lastname: Zhang
authors.affiliation: College of Environmental and Municipal Engineering, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Key Laboratory of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, Xi'an 710055, PR China.
authors.forename: Guoyun
authors.initials: G
authors.lastname: Xi
authors.affiliation: College of Environmental and Municipal Engineering, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Key Laboratory of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, Xi'an 710055, PR China.
authors.forename: Jiaxin
authors.initials: J
authors.lastname: Zhang
authors.affiliation: College of Environmental Science and Engineering, Nankai University, Tianjin 300071, PR China.
authors.forename: Hongbing
authors.initials: H
authors.lastname: Yu
authors.affiliation: College of Environmental and Municipal Engineering, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Key Laboratory of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, Xi'an 710055, PR China.
authors.forename: Xiaochang
authors.initials: X
authors.lastname: Wang
mesh_terms: D000143:Acids / Q000737:chemistry; D000327:Adsorption; D000588:Amines / Q000737:chemistry; D018533:Biomass; D002384:Catalysis; D005662:Furaldehyde / Q000031:analogs & derivatives* / Q000737:chemistry; D007783:Lactones / Q000737:chemistry; D008031:Lignin / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction; D003313:Zea mays / Q000737:chemistry
chemical_list: D000143:Acids; D000588:Amines; D007783:Lactones; C036909:lignocellulose; C008046:5-hydroxymethylfurfural; D008031:Lignin; D005662:Furaldehyde; C037556:gamma-valerolactone
keywords: 5-HMF; Catalysis; Corncob; Furfural; SPTPA