干旱区生态环境知识资源中心(Arid): Characterizing Aqueous Cd2+ Removal by Plant Biochars from Qinghai-Tibet Plateau

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DOI	10.3390/w14244085
	Characterizing Aqueous Cd2+ Removal by Plant Biochars from Qinghai-Tibet Plateau
	Li, Wenxuan; Wang, Xueli; Kong, Haizhen; Zhang, Dan
通讯作者	Li, WX
来源期刊	WATER
EISSN	2073-4441
出版年	2022
卷号	14 期号:24
英文摘要	Increased anthropogenic activities have caused cadmium pollution in Qinghai-Tibet Plateau, which is harmful to human health. This paper investigated aqueous Cd2+ adsorption using biochar of three typical vegetation types in cold and arid areas of the Qinghai-Tibet Plateau: (i) Chinese wolfberry (GBB), (ii) highland barley (QBB), and (iii) seabuckthorn (SBB). In order to investigate the effect of pyrolysis temperature on the performance of biochar for cadmium adsorption, three types of biochar were prepared at 350 degrees C, 500 degrees C, and 650 degrees C. The as-prepared biochar was characterized by scanning electron microscopy (SEM), Thermogravimetric (TG), Fourier transform infrared spectroscopy (FT-IR), and Brauer-Emmett-Teller (BET) analysis. The results showed that the biochar prepared at 650 degrees C had the best adsorption capacity. Compared with QBB and SBB, the GBB had a higher Cd2+ adsorption capacity of 19.48 mg/g. Moreover, the effects of biochar dosage, experimental temperature, and biochar preparation temperature on the adsorption of Cd2+ by biochar and the interaction between the factors were investigated using Box-Behnken Design (BBD). As a result, the amount of biochar dosage showed the most obvious influence on Cd2+ adsorption capacity, followed by sample preparation temperature and experimental adsorption temperature. This study paves the way for the design of biochar for Cd2+ adsorption in wastewater.
英文关键词	biochar adsorption response surface methodology heavy metal cadmium
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000903443800001
WOS关键词	PYROLYSIS TEMPERATURE ; ADSORPTION ; ELEMENTS ; BIOMASS ; WATER ; SOIL
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394866
推荐引用方式 GB/T 7714	Li, Wenxuan,Wang, Xueli,Kong, Haizhen,et al. Characterizing Aqueous Cd2+ Removal by Plant Biochars from Qinghai-Tibet Plateau[J],2022,14(24).
APA	Li, Wenxuan,Wang, Xueli,Kong, Haizhen,&Zhang, Dan.(2022).Characterizing Aqueous Cd2+ Removal by Plant Biochars from Qinghai-Tibet Plateau.WATER,14(24).
MLA	Li, Wenxuan,et al."Characterizing Aqueous Cd2+ Removal by Plant Biochars from Qinghai-Tibet Plateau".WATER 14.24(2022).