Microbial formation of palladium nanoparticles by Geobacter sulfurreducens for chromate reduction

Ya Tuo; Guangfei Liu; Jiti Zhou; Aijie Wang; Jing Wang; Ruofei Jin; Hong Lv

doi:10.1016/j.biortech.2013.02.016

Microbial formation of palladium nanoparticles by Geobacter sulfurreducens for chromate reduction

Ya Tuo
, Guangfei Liu^*
, Jiti Zhou
, Aijie Wang
, Jing Wang
, Ruofei Jin
, Hong Lv

^*Corresponding author for this work

School of Environment

Dalian University of Technology
Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

76 Scopus citations

Abstract

Geobacter sulfurreducens was studied for the reduction of Pd(II) and production of Pd(0) nanoparticles capable of reducing Cr(VI). Transmission electronic microscopy, energy dispersive X-ray and X-ray diffraction analyses revealed that the nanoscale Pd(0) particles formed were associated with the cell surface and located inside the periplasm. The increase of cell dry weight (CDW):Pd ratio and addition of anthraquinone-2,6-disulfonate (AQDS) not only stimulated Pd(II) reduction, but also resulted in increase of nanoparticle number, decrease of particle diameter and improvement of Cr(VI) reduction efficiency. The relationship between reduction rate and initial Cr(VI) concentration (150-750μM) followed Michaelis-Menten kinetics (V_max=3.6μmolh^-1mg bio-Pd^-1 and K_m=891.3μM). These findings indicated the potential of using G. sulfurreducens cells for reclamation of palladium, formation of Pd(0) nanoparticles and efficient treatment of Cr(VI) pollution.

Original language	English
Pages (from-to)	606-611
Number of pages	6
Journal	Bioresource Technology
Volume	133
DOIs	https://doi.org/10.1016/j.biortech.2013.02.016
State	Published - Apr 2013

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Chromate
Geobacter sulfurreducens
Nanoparticle
Palladium

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10.1016/j.biortech.2013.02.016

Cite this

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title = "Microbial formation of palladium nanoparticles by Geobacter sulfurreducens for chromate reduction",

abstract = "Geobacter sulfurreducens was studied for the reduction of Pd(II) and production of Pd(0) nanoparticles capable of reducing Cr(VI). Transmission electronic microscopy, energy dispersive X-ray and X-ray diffraction analyses revealed that the nanoscale Pd(0) particles formed were associated with the cell surface and located inside the periplasm. The increase of cell dry weight (CDW):Pd ratio and addition of anthraquinone-2,6-disulfonate (AQDS) not only stimulated Pd(II) reduction, but also resulted in increase of nanoparticle number, decrease of particle diameter and improvement of Cr(VI) reduction efficiency. The relationship between reduction rate and initial Cr(VI) concentration (150-750μM) followed Michaelis-Menten kinetics (Vmax=3.6μmolh-1mg bio-Pd-1 and Km=891.3μM). These findings indicated the potential of using G. sulfurreducens cells for reclamation of palladium, formation of Pd(0) nanoparticles and efficient treatment of Cr(VI) pollution.",

keywords = "Chromate, Geobacter sulfurreducens, Nanoparticle, Palladium",

author = "Ya Tuo and Guangfei Liu and Jiti Zhou and Aijie Wang and Jing Wang and Ruofei Jin and Hong Lv",

year = "2013",

month = apr,

doi = "10.1016/j.biortech.2013.02.016",

language = "英语",

volume = "133",

pages = "606--611",

journal = "Bioresource Technology",

issn = "0960-8524",

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TY - JOUR

T1 - Microbial formation of palladium nanoparticles by Geobacter sulfurreducens for chromate reduction

AU - Tuo, Ya

AU - Liu, Guangfei

AU - Zhou, Jiti

AU - Wang, Aijie

AU - Wang, Jing

AU - Jin, Ruofei

AU - Lv, Hong

PY - 2013/4

Y1 - 2013/4

N2 - Geobacter sulfurreducens was studied for the reduction of Pd(II) and production of Pd(0) nanoparticles capable of reducing Cr(VI). Transmission electronic microscopy, energy dispersive X-ray and X-ray diffraction analyses revealed that the nanoscale Pd(0) particles formed were associated with the cell surface and located inside the periplasm. The increase of cell dry weight (CDW):Pd ratio and addition of anthraquinone-2,6-disulfonate (AQDS) not only stimulated Pd(II) reduction, but also resulted in increase of nanoparticle number, decrease of particle diameter and improvement of Cr(VI) reduction efficiency. The relationship between reduction rate and initial Cr(VI) concentration (150-750μM) followed Michaelis-Menten kinetics (Vmax=3.6μmolh-1mg bio-Pd-1 and Km=891.3μM). These findings indicated the potential of using G. sulfurreducens cells for reclamation of palladium, formation of Pd(0) nanoparticles and efficient treatment of Cr(VI) pollution.

AB - Geobacter sulfurreducens was studied for the reduction of Pd(II) and production of Pd(0) nanoparticles capable of reducing Cr(VI). Transmission electronic microscopy, energy dispersive X-ray and X-ray diffraction analyses revealed that the nanoscale Pd(0) particles formed were associated with the cell surface and located inside the periplasm. The increase of cell dry weight (CDW):Pd ratio and addition of anthraquinone-2,6-disulfonate (AQDS) not only stimulated Pd(II) reduction, but also resulted in increase of nanoparticle number, decrease of particle diameter and improvement of Cr(VI) reduction efficiency. The relationship between reduction rate and initial Cr(VI) concentration (150-750μM) followed Michaelis-Menten kinetics (Vmax=3.6μmolh-1mg bio-Pd-1 and Km=891.3μM). These findings indicated the potential of using G. sulfurreducens cells for reclamation of palladium, formation of Pd(0) nanoparticles and efficient treatment of Cr(VI) pollution.

KW - Chromate

KW - Geobacter sulfurreducens

KW - Nanoparticle

KW - Palladium

UR - https://www.scopus.com/pages/publications/84875810466

U2 - 10.1016/j.biortech.2013.02.016

DO - 10.1016/j.biortech.2013.02.016

M3 - 文章

C2 - 23453979

AN - SCOPUS:84875810466

SN - 0960-8524

VL - 133

SP - 606

EP - 611

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Microbial formation of palladium nanoparticles by Geobacter sulfurreducens for chromate reduction

Abstract

UN SDGs

Keywords

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