Facile fabrication of Pd nanoparticle/Pichia pastoris catalysts through adsorption-reduction method: A study into effect of chemical pretreatment

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	Facile fabrication of Pd nanoparticle/Pichia pastoris catalysts through adsorption-reduction method: A study into effect of chemical pretreatment
	Chen, Huimei ; Huang, Dengpo ; Lin, Liqin ; Odoom-Wubah, Tareque ; Huang, Jiale ; Sun, Daohua ; Li, Qingbiao, ; Huang JL(黄加乐) ; Sun DH(孙道华) ; Li QB(李清彪) ; Lin LQ(林丽钦)
刊名	http://dx.doi.org/10.1016/j.jcis.2014.07.038
	2014
关键词	Adsorption Alkylation Catalyst supports Cells Chemical modification Cytology Ions Methylation Nanoparticles Palladium compounds Yeast
英文摘要	Based on rapid adsorption and incomplete reduction in Pd (II) ions by yeast, Pichia pastoris (. P. pastoris) GS115, the effects of pretreatment on adsorption and reduction of Pd (II) ions and the catalytic properties of Pd NP/. P. pastoris catalysts were studied. Interestingly, the results showed that the adsorption ability of the cells for Pd (II) ions was greatly enhanced after they were pretreated with aqueous HCl, aqueous NaOH and methylation of amino group. For the reduction in the adsorbed Pd (II) ions, more slow reduction rates by pretreated P. pastoris cells were displayed compared with the cells without pretreatment. Using the reduction of 4-nitrophenol as a model reaction, the Pd NP/. P. pastoris catalysts based on the cells after pretreatment with aqueous HCl, aqueous NaOH and methylation of amino group exhibited higher stability than the unpretreated cells. The enhanced stability of the Pd catalysts can be attributed to smaller Pd NPs, better dispersion of the Pd NPs, and stronger binding forces of the pretreated P. pastoris for preparing the Pd NPs. This work exemplifies enhancing the stability of Pd catalysts through pretreatments. ? 2014 Elsevier Inc.All rights reserved.
语种	英语
出版者	Academic Press Inc.
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89884]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Chen, Huimei,Huang, Dengpo,Lin, Liqin,et al. Facile fabrication of Pd nanoparticle/Pichia pastoris catalysts through adsorption-reduction method: A study into effect of chemical pretreatment[J]. http://dx.doi.org/10.1016/j.jcis.2014.07.038,2014.
APA	Chen, Huimei.,Huang, Dengpo.,Lin, Liqin.,Odoom-Wubah, Tareque.,Huang, Jiale.,...&林丽钦.(2014).Facile fabrication of Pd nanoparticle/Pichia pastoris catalysts through adsorption-reduction method: A study into effect of chemical pretreatment.http://dx.doi.org/10.1016/j.jcis.2014.07.038.
MLA	Chen, Huimei,et al."Facile fabrication of Pd nanoparticle/Pichia pastoris catalysts through adsorption-reduction method: A study into effect of chemical pretreatment".http://dx.doi.org/10.1016/j.jcis.2014.07.038 (2014).