Facile one-pot synthesis of iron nanoparticles immobilized into the porous hydrochar for catalytic decomposition of phenol

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

	Facile one-pot synthesis of iron nanoparticles immobilized into the porous hydrochar for catalytic decomposition of phenol
	Gai, Chao; Liu, Zhengang; Peng, Nana; Liu, Tingting; Lang, Qianqian; Zhang, Fang
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2017-05-05
卷号	204 期号:0 页码:566-576
关键词	Hydrothermal Carbonization Hydrochar Iron Nanoparticles Tar Model Compounds Phenol
英文摘要	Iron-based nanocatalysts were synthesized by a green and facile one-pot hydrothermal carbonization (HTC) process. Precursory iron salts with different concentrations were dissolved together with the lignocellulosic matrix (i.e., pinewood sawdust) in the solution, and the mixtures were heated to 200 degrees C for 1 h in a sealed autoclave. After hydrothermal treatment, carbon spheres were formed with the iron precursors tightly embedded in the microsphere/mesopheres of the amorphous carbon matrix. By contrast, the impregnation of the iron salts onto the hydrothermal carbons (hydrochars) derived from HTC of sawdust were conducted as a control method. The nanomaterials prepared by these two approaches were evaluated comparatively. Compared to the impregnation approach, a nanocatalyst with more uniformly dispersed Fe nanoparticles (NPs) immobilized on the hydrochars was produced by the one-pot synthesis. Furthermore, the particle size of the Fe NPs and surface area of the nanocatalysts via the one-pot synthesis can be manipulated. The catalytic abilities of the Fe-based nanomaterials prepared by the two approaches were then tested in a fixed bed tubular reactor for biomass tar using phenol as the model compound. The nanocatalysts prepared by the one-pot synthesis exhibited higher catalytic activity in the thermal decomposition of the phenol at mild temperatures and resistance to coke deposition. The present study showed that the simple and efficient one-pot synthesis assisted uniform dispersion of Fe NPs on the surface of hydrochar through a surface-mediated chemistry. In addition, such facile one-pot synthesis may be applied to synthesize other metal or metal oxide NPs embedded in the hydrochars with more complex structures and unique chemical/physical properties. (C) 2016 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39222]
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	Gai, Chao,Liu, Zhengang,Peng, Nana,et al. Facile one-pot synthesis of iron nanoparticles immobilized into the porous hydrochar for catalytic decomposition of phenol[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,204(0):566-576.
APA	Gai, Chao,Liu, Zhengang,Peng, Nana,Liu, Tingting,Lang, Qianqian,&Zhang, Fang.(2017).Facile one-pot synthesis of iron nanoparticles immobilized into the porous hydrochar for catalytic decomposition of phenol.APPLIED CATALYSIS B-ENVIRONMENTAL,204(0),566-576.
MLA	Gai, Chao,et al."Facile one-pot synthesis of iron nanoparticles immobilized into the porous hydrochar for catalytic decomposition of phenol".APPLIED CATALYSIS B-ENVIRONMENTAL 204.0(2017):566-576.