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The Eco-Friendly Biochar and Valuable Bio-Oil fromCaragana korshinskii: Pyrolysis Preparation, Characterization, and Adsorption Applications

文献类型：期刊论文

作者Wang, Tongtong2,3; Liu, Hongtao2,3; Duan, Cuihua2,3; Xu, Rui2,3; Zhang, Zhiqin2,3; She, Diao1,2; Zheng, Jiyong1,2
刊名MATERIALS
出版日期2020-08-01
卷号13期号:15页码:20
关键词pyrolysis process Caragana korshinskiibiochar physicochemical properties adsorption characteristics nitrate nitrogen bio-oil
DOI10.3390/ma13153391
通讯作者Zheng, Jiyong(zhjy@ms.iswc.ac.cn)
英文摘要Carbonization of biomass can prepare carbon materials with excellent properties. In order to explore the comprehensive utilization and recycling ofCaragana korshinskiibiomass, 15 kinds ofCaragana korshinskiibiochar (CB) were prepared by controlling the oxygen-limited pyrolysis process. Moreover, we pay attention to the dynamic changes of microstructure of CB and the by-products. The physicochemical properties of CB were characterized by Scanning Electron Microscope (SEM), BET-specific surface area (BET-SSA), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Fourier Transform Infrared (FTIR), and Gas chromatography-mass spectrometry (GC-MS). The optimal preparation technology was evaluated by batch adsorption application experiment of NO3-, and the pyrolysis mechanism was explored. The results showed that the pyrolysis temperature is the most important factor in the properties of CB. With the increase of temperature, the content of C, pH, mesoporous structure, BET-SSA of CB increased, the cation exchange capacity (CEC) decreased and then increased, but the yield and the content of O and N decreased. The CEC, pH, and BET-SSA of CB under each pyrolysis process were 16.64-81.4 cmol center dot kg(-1), 6.65-8.99, and 13.52-133.49 m(2)center dot g(-1), respectively. CB contains abundant functional groups and mesoporous structure. As the pyrolysis temperature and time increases, the bond valence structure of C 1s, Ca 2p, and O 1s is more stable, and the phase structure of CaCO(3)is more obvious, where the aromaticity increases, and the polarity decreases. The CB prepared at 650 degrees C for 3 h presented the best adsorption performance, and the maximum theoretical adsorption capacity for NO(3)(-)reached 120.65 mg center dot g(-1). The Langmuir model and pseudo-second-order model can well describe the isothermal and kinetics adsorption process of NO3-, respectively. Compared with other cellulose and lignin-based biomass materials, CB showed efficient adsorption performance of NO(3)(-)without complicated modification condition. The by-products contain bio-soil and tail gas, which are potential source of liquid fuel and chemical raw materials. Especially, the bio-oil of CB contains alpha-d-glucopyranose, which can be used in medical tests and medicines.
WOS关键词CARAGANA-KORSHINSKII ; NITRATE-NITROGEN ; TEMPERATURE ; REMOVAL ; PHOSPHATE ; SORPTION ; BIOMASS ; MANURE ; WATER ; SOIL
资助项目National Key Research and Development Plan of China[2017YFC0504504] ; Key Research and Development Plan of Ningxia Hui Autonomous Region[2020BCF01001] ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences[KFJ-STS-QYZD-177] ; Opening Fund of Chongqing Key Laboratory of Environmental Materials and Remediation Technology[CEK1805]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000559150900001
出版者MDPI
资助机构National Key Research and Development Plan of China ; Key Research and Development Plan of Ningxia Hui Autonomous Region ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Opening Fund of Chongqing Key Laboratory of Environmental Materials and Remediation Technology
源URL[http://ir.igsnrr.ac.cn/handle/311030/158072]  
专题中国科学院地理科学与资源研究所
通讯作者Zheng, Jiyong
作者单位1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
3.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Tongtong,Liu, Hongtao,Duan, Cuihua,et al. The Eco-Friendly Biochar and Valuable Bio-Oil fromCaragana korshinskii: Pyrolysis Preparation, Characterization, and Adsorption Applications[J]. MATERIALS,2020,13(15):20.
APA Wang, Tongtong.,Liu, Hongtao.,Duan, Cuihua.,Xu, Rui.,Zhang, Zhiqin.,...&Zheng, Jiyong.(2020).The Eco-Friendly Biochar and Valuable Bio-Oil fromCaragana korshinskii: Pyrolysis Preparation, Characterization, and Adsorption Applications.MATERIALS,13(15),20.
MLA Wang, Tongtong,et al."The Eco-Friendly Biochar and Valuable Bio-Oil fromCaragana korshinskii: Pyrolysis Preparation, Characterization, and Adsorption Applications".MATERIALS 13.15(2020):20.

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来源：地理科学与资源研究所

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