Sorption of mercury (II) and atrazine by biochar, modified biochars and   biochar based activated carbon in aqueous solution

doi:10.1016/j.biortech.2016.03.147

CORC > 北京大学 > 环境科学与工程学院

	Sorption of mercury (II) and atrazine by biochar, modified biochars and biochar based activated carbon in aqueous solution
	Tan, Guangcai ; Sun, Weiling ; Xu, Yaru ; Wang, Hongyuan ; Xu, Nan
刊名	BIORESOURCE TECHNOLOGY
	2016
关键词	Biochar Mercury (II) Atrazine Chemical modification Cosorption KOH ACTIVATION SOLID-WASTES REMOVAL ADSORPTION HERBICIDES COPPER WATER SEPARATION SEDIMENTS TRIAZINE
DOI	10.1016/j.biortech.2016.03.147
英文摘要	Corn straw biochar (BC) was used as a precursor to produce Na2S modified biochar (BS), KOH modified biochar (BK) and activated carbon (AC). Experiments were conducted to compare the sorption capacity of these sorbents for aqueous Hg (II) and atrazine existed alone or as a mixture. In comparison to BC, the sorption capacity of BS, BK and AC for single Hg (II) increased by 76.95%, 32.12% and 41.72%, while that for atrazine increased by 38.66%, 46.39% and 47 times, respectively. When Hg (II) and atrazine coexisted in an aqueous solution, competitive sorption was observed on all these sorbents. Sulfur impregnation was an efficient way to enhance the Hg (II) removal due to the formation of HgS precipitate, and oxygen-containing functional groups on the sorbents also contributed to Hg (II) sorption. Activated carbon was the best sorbent for atrazine removal because of its extremely high specific surface area. (C) 2016 Elsevier Ltd. All rights reserved.; National Natural Science Foundation of China [41301311, 51309005]; Science and Technology Planning Project of Shenzhen, China [JCYJ20150629144818001]; SCI(E); EI; PubMed; ARTICLE; xunan@pkusz.edu.cn; 727-735; 211
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/434188]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Tan, Guangcai,Sun, Weiling,Xu, Yaru,et al. Sorption of mercury (II) and atrazine by biochar, modified biochars and biochar based activated carbon in aqueous solution[J]. BIORESOURCE TECHNOLOGY,2016.
APA	Tan, Guangcai,Sun, Weiling,Xu, Yaru,Wang, Hongyuan,&Xu, Nan.(2016).Sorption of mercury (II) and atrazine by biochar, modified biochars and biochar based activated carbon in aqueous solution.BIORESOURCE TECHNOLOGY.
MLA	Tan, Guangcai,et al."Sorption of mercury (II) and atrazine by biochar, modified biochars and biochar based activated carbon in aqueous solution".BIORESOURCE TECHNOLOGY (2016).