Conversion of biochar to sulfonated solid acid catalysts for spiramycin hydrolysis: Insights into the sulfonation process

doi:10.1016/j.envres.2020.109887

	Conversion of biochar to sulfonated solid acid catalysts for spiramycin hydrolysis: Insights into the sulfonation process
	Xie, Qianqian 1; Yang, Xiao 2; Xu, Kangning 1; Chen, Zheng 1; Sarkar, Binoy 3; Dou, Xiaomin 1
刊名	ENVIRONMENTAL RESEARCH
	2020-09-01
卷号	188 页码:10
关键词	Biochar Sulfonation Solid acid catalysts Spiramycin hydrolysis Antibiotic remediation
ISSN号	0013-9351
DOI	10.1016/j.envres.2020.109887
通讯作者	Dou, Xiaomin(douxiaomin@bjfu.edu.cn)
英文摘要	Biochar has been recognized as a sustainable platform for developing functional materials including catalysts. This work demonstrated a method of converting biochar to sulfonated solid-acid catalysts, and the effectiveness of the catalysts for spiramycin hydrolysis was examined. Two biochar samples (H and X) were sulfonated with three reagents (concentrated H2SO4, ClSO3H and p-toluenesulfonic acid (TsOH)) under hydrothermal, simple heating, ambient temperature, and CHCl3-assisted treatments. The effect of elemental compositions and structural characteristics of the feeding materials (H and X) on the acidic properties of the sulfonated biochars were investigated. The results showed that the sulfonation ability of the three reagents was in the order of ClSO3H > H2SO4 > TsOH, while hydrothermal treatment provided the highest total acidity, and largest amount of acidic groups (e.g., SO3H, COOH and Ar-OH). Biochar X with higher O/C and N contents, and less graphitic features showed superior acidic properties than biochar H under all the employed treatments. The hydrolytic efficiencies of the sulfonated biochars under 200 W of microwave irradiation increased with increasing total acidity, and the amount of SO3H and COOH groups. After sulfonation, the O/C of biochars increased, while H/C decreased, and the aromatic and graphitic features did not change. The electromagnetic energy absorbed by the sulfonated biochars did not notably contribute to spiramycin hydrolysis. Thus, this work demonstrated an effective and promising method for maneuvering biochar-based functional solid-acid catalysts for antibiotic remediation in contaminated water.
资助项目	National Natural Science Foundation of China[51978052] ; State Key Joint Laboratory of Environmental Simulation and Pollution[19K01ESPCR]
WOS关键词	CARBON BEARING SO3H ; PINE-DERIVED BIOCHAR ; MICROWAVE-ABSORPTION ; CELLULOSE ; BIOMASS ; SPECTROSCOPY ; GRAPHENE ; COOH
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000564658500008
资助机构	National Natural Science Foundation of China ; State Key Joint Laboratory of Environmental Simulation and Pollution
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/157904]
专题	中国科学院地理科学与资源研究所
通讯作者	Dou, Xiaomin
作者单位	1.Beijing Forestry Univ, Coll Environm Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England
推荐引用方式 GB/T 7714	Xie, Qianqian,Yang, Xiao,Xu, Kangning,et al. Conversion of biochar to sulfonated solid acid catalysts for spiramycin hydrolysis: Insights into the sulfonation process[J]. ENVIRONMENTAL RESEARCH,2020,188:10.
APA	Xie, Qianqian,Yang, Xiao,Xu, Kangning,Chen, Zheng,Sarkar, Binoy,&Dou, Xiaomin.(2020).Conversion of biochar to sulfonated solid acid catalysts for spiramycin hydrolysis: Insights into the sulfonation process.ENVIRONMENTAL RESEARCH,188,10.
MLA	Xie, Qianqian,et al."Conversion of biochar to sulfonated solid acid catalysts for spiramycin hydrolysis: Insights into the sulfonation process".ENVIRONMENTAL RESEARCH 188(2020):10.