Homogeneously Dispersed Zerovalent Iron Nanoparticles Supported on Hydrochar-Derived Porous Carbon: Simple, in Situ Synthesis and Use for Dechlorination of PCBs

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 固体废弃物处理与资源化实验室

	Homogeneously Dispersed Zerovalent Iron Nanoparticles Supported on Hydrochar-Derived Porous Carbon: Simple, in Situ Synthesis and Use for Dechlorination of PCBs
	Liu, Zhengang; Zhang, Fang; Hoekman, S. Kent; Liu, Tingting; Gai, Chao; Peng, Nana
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2016-06
卷号	4 期号:6 页码:3261-3267
关键词	Hydrochar Nano metal Carbon material Biomass Adsorption
英文摘要	Herein, we have developed a simple and effective strategy for in situ preparation of nanoscale zerovalent iron (NZVI) supported on porous carbon (PC) using renewable hydrochar as the carbon precursor. Physicochemical properties of the resultant NZVI/PC composites were characterized by XRD, SEM-EDS, TEM, and BET, and the effectiveness of these composites was evaluated for the remediation of PCB-contaminated water. Results showed that the iron ions were uniformly dispersed within the hydrochar matrix and serve as an activation agent for the hydrochar during a subsequent pyrolysis process. The iron is reduced in situ to NZVI with diameters of 8.5-10 nm, without requiring an additional reducing agent. At temperatures of 600-800 degrees C, the well-dispersed NZVI catalyzes the transformation from amorphous carbon to graphitic carbon. The NZVI/PC composite prepared at 800 degrees C exhibited high efficiency for adsorption and dechlorination of PCBs in aqueous solution. This is attributed to the composites' high surface area, uniformly dispersed nanoscale iron, high degrees of graphitic porous carbon, and substantial amount of mesopores. The present study offers a simple and sustainable approach for the preparation of prospective NZVI/PC with high stability and reactivity from renewable resources.
收录类别	SCI
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/35782]
专题	生态环境研究中心_固体废弃物处理与资源化实验室
推荐引用方式 GB/T 7714	Liu, Zhengang,Zhang, Fang,Hoekman, S. Kent,et al. Homogeneously Dispersed Zerovalent Iron Nanoparticles Supported on Hydrochar-Derived Porous Carbon: Simple, in Situ Synthesis and Use for Dechlorination of PCBs[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2016,4(6):3261-3267.
APA	Liu, Zhengang,Zhang, Fang,Hoekman, S. Kent,Liu, Tingting,Gai, Chao,&Peng, Nana.(2016).Homogeneously Dispersed Zerovalent Iron Nanoparticles Supported on Hydrochar-Derived Porous Carbon: Simple, in Situ Synthesis and Use for Dechlorination of PCBs.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,4(6),3261-3267.
MLA	Liu, Zhengang,et al."Homogeneously Dispersed Zerovalent Iron Nanoparticles Supported on Hydrochar-Derived Porous Carbon: Simple, in Situ Synthesis and Use for Dechlorination of PCBs".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 4.6(2016):3261-3267.