Characterization of Dissolved Organic Matter in Aquatic Macrophytes Derived-Biochars Using Multi-spectroscopic Analyses: Combined Effects of Pyrolysis Temperatures and Sequential Extractions
文献类型： 外文期刊
作者： Chen, Bingfa 1 ; Chen, Kaining 2 ; Han, Shiqun 1 ; Liu, Cheng 2 ; Feng, Muhua 2 ; Huang, Wei 2 ; Cai, Hui 3 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm Sci, Nanjing 210014, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
3.Suzhou Yifante Environm Remediat Co Ltd, Suzhou 215010, Peoples R China
关键词： Biochar; Pyrolysis temperature; Dissolved organic matter; Sequential extractions; Multi-spectroscopic investigations
期刊名称：WASTE AND BIOMASS VALORIZATION （ 影响因子：3.449； 五年影响因子：3.575 ）
ISSN： 1877-2641
年卷期：
页码：
收录情况： SCI
摘要： Dissolved organic matter in biochars (BDOM) influences the latter's environmental applications. This study applied multiple spectra methods to expound the characteristics of BDOM in aquatic macrophytes (Alternanthera philoxeroides) biochars produced at different pyrolysis temperatures under sequential extractions (room-temperature water, hot water and a weak base). The results showed that the feedstock and the biochar produced at 200 degrees C, biochars produced at 300-500 degrees C and above 600 degrees C were unstable, metastable and stable, respectively, according to the release of dissolved organic carbon. One protein-like and four humic-like fluorophores were identified. The BDOM were dominated by humic-like components, and the pyrolysis of fluorescent components was hysteretic compared to the non-fluorescent materials. In addition, the relative molecular weight, aromaticity, and hydrophobicity of BDOM increased correspondingly under sequential extractions. High pH/temperature of extracting solution will lead to the BDOM with higher humification degree. This study also indicates humic acid and polysaccharide, as the fluorescent substance and the non-fluorescent substance, respectively, were more sensitive to pyrolysis temperature and changed firstly under sequential extractions. This study was beneficial for understanding the characteristics of BDOM at the molecular level and for predicting the possible effects and processes of biochars before large-scale applications. [GRAPHICS]
- 相关文献
作者其他论文 更多>>
-
Hydrothermal temperature-dependent compositions and copper complexing behaviors of hydrochar-derived dissolved organic matter: Insights from FT-ICR MS and multi-spectroscopic analysis
作者：Chen, Bingfa;You, Bensheng;Chen, Bingfa;Gu, Xincai;Feng, Yanfang;Zheng, Jingcheng;Han, Shiqun;Gu, Xincai;Zheng, Jingcheng;Liu, Hong;Feng, Muhua;Wang, Bingyu;Han, Shiqun
关键词：Hydrochar; Dissolved organic matter; Molecular characterizations; Cu(II) binding; Two-dimensional correlation analysis (2D-COS)
-
17α-methyltestosterone exposure disrupted growth, liver physiology and intestinal microbial on fish: A case study on migratory bony fishes ( Takifugu fasciatus)
作者：Liu, Yuxi;Wang, Sijin;Han, Mengbo;Luo, Sheng;Chu, Peng;Tang, Xiaodong;Zhao, Cheng;Yin, Shaowu;Wang, Tao;Liu, Yuxi;Wang, Sijin;Han, Mengbo;Luo, Sheng;Chu, Peng;Tang, Xiaodong;Zhao, Cheng;Yin, Shaowu;Wang, Tao;Han, Shiqun
关键词：17 alpha-methyltestosterone; Takifugu fasciatus; Lipid physiological metabolism; Intestinal microorganisms
-
Hydrothermal carbonization aqueous phase applied to the rice paddy: Interaction between soil DOM and bacterial community on runoff water quality
作者：Feng, Yuanyuan;Feng, Yuanyuan;He, Huayong;Wang, Lisha;Ji, Yahui;Chen, Bingfa;He, Shiying;Feng, Yanfang;Xue, Lihong;Wang, Bingyu;Xing, Baoshan
关键词：Sewage sludge hydrothermal carbonation; Artificial dissolved organic matter; Molecular composition; ESI-FT-ICR MS; Water quality
-
Z-scheme BiPO4/Bi2Fe4O9 heterojunction as visible-light-driven peroxymonosulfate activator for enhanced tetracycline degradation and toxicity risk reduction
作者：Zhang, Zhongyi;Ma, Junjie;Dawolo, Edwin Hena;Liu, Hong;Chen, Bingfa;Ding, Ning
关键词：Photocatalysis; Peroxymonosulfate; Antibiotics; Tetracycline
-
Hydrochar and Its Dissolved Organic Matter Aged in a 30-Month Rice-Wheat Rotation System: Do Primary Aging Factors Alter at Different Stages?
作者：Ge, Mengting;Wang, Bingyu;Xie, Huifang;Chen, Bingfa;Feng, Yanfang;Sun, Haijun;Sun, Ke
关键词：soil aging; hydrochar; dissolved organic matter; physicochemicalproperties; molecular structure
-
Synthesis of Fe-Loaded Biochar Obtained from Rape Straw for Enhanced Degradation of Emerging Contaminant Antibiotic Metronidazole
作者：Zhang, Dongyuan;Shi, Lin;Dawolo, Edwin Hena;Liu, Hong;Chen, Bingfa;Ding, Ning
关键词：biochar; PMS; antibiotic; metronidazole; degradation
-
Photochemical behavior of dissolved organic matter derived from Alternanthera philoxeroides hydrochar: Insights from molecular transformation and photochemically reactive intermediates
作者：Gu, Xincai;Liu, Hong;Gu, Xincai;Chen, Bingfa;Feng, Yanfang;He, Shiying;Pan, Guojun;Han, Shiqun;Wang, Bingyu;Feng, Muhua
关键词：Hydrochar; Dissolved organic matter; Photochemical behavior; Photochemically reactive intermediates; Molecular transformation
