Effect of mineral constituents on temperature-dependent structural characterization of carbon fractions in sewage sludge-derived biochar

doi:10.1016/j.jclepro.2017.11.090

	Effect of mineral constituents on temperature-dependent structural characterization of carbon fractions in sewage sludge-derived biochar
	Li, Mi 1,2; Tang, Yuanyuan 2,3; Ren, Nana 2; Zhang, Zuotai 2,3; Cao, Yiming 1
刊名	JOURNAL OF CLEANER PRODUCTION
	2018-01-20
卷号	172 页码:3342-3350
关键词	Sewage Sludge Biochar Carbon Fractions Structure Mineral Constituents
ISSN号	0959-6526
DOI	10.1016/j.jclepro.2017.11.090
文献子类	Article
英文摘要	The structure of carbon fractions and its characterization are critical for practical applications of the sewage sludge-derived biochar. However, the endogenous mineral constituents in sewage sludge can largely affect the structural characterization of carbon fractions in the obtained biochar. In this study, the high-mineral sludge biochar together with the biochar after acid washing was employed to explicate the effects of silicon- and aluminum-containing minerals on the structural characterization of carbon fractions. Results from Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) showed that major minerals such as kaolinite, metakaolin and quartz can obscure the presentation of functional groups and crystalline structure of carbon fractions. Peak deconvolution of Raman spectra demonstrated that both positions and peak area ratios of G and D bands were affected by the signals of aluminosilicates. Furthermore, aromatic rings developed and condensed with the increase in pyrolysis temperatures, leading to a gradual increase in structural ordering and the formation of turbostratic structures with poor crystalline and short-ranged orders. In addition, the effect of mineral constituents on physicochemical properties was related with pyrolysis temperature, which showed an enlargement in porosity at high temperatures (500-700 degrees C) but a more closely-packed powder mixture for low-temperature biochar (200-400 degrees C). From the interference of mineral constituents on temperature-dependent structure characterization of biochar carbon fractions, this study showed the necessity to explore interactions between mineral and carbon fractions to enhance potential application of high-mineral biochars. (C) 2017 Elsevier Ltd. All rights reserved.
WOS关键词	DIAMOND-LIKE CARBON ; RAMAN-SPECTROSCOPY ; PYROLYTIC TEMPERATURES ; CHAR STRUCTURE ; COMBUSTION REACTIVITY ; SORPTION MECHANISMS ; AROMATIC CLUSTERS ; AMORPHOUS-CARBON ; HEAT-TREATMENT ; EVOLUTION
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000423002500030
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/168474]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Tang, Yuanyuan
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Adv Chem Engn, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, 1088 Xueyuan Blvd, Shenzhen 518055, Peoples R China 3.Key Lab Municipal Solid Waste Recycling Technol &, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Li, Mi,Tang, Yuanyuan,Ren, Nana,et al. Effect of mineral constituents on temperature-dependent structural characterization of carbon fractions in sewage sludge-derived biochar[J]. JOURNAL OF CLEANER PRODUCTION,2018,172:3342-3350.
APA	Li, Mi,Tang, Yuanyuan,Ren, Nana,Zhang, Zuotai,&Cao, Yiming.(2018).Effect of mineral constituents on temperature-dependent structural characterization of carbon fractions in sewage sludge-derived biochar.JOURNAL OF CLEANER PRODUCTION,172,3342-3350.
MLA	Li, Mi,et al."Effect of mineral constituents on temperature-dependent structural characterization of carbon fractions in sewage sludge-derived biochar".JOURNAL OF CLEANER PRODUCTION 172(2018):3342-3350.