Remobilisation of silver and silver sulphide nanoparticles in soils

被引：38

作者：

Navarro, Divina A. ^{[1
]}

Kirby, Jason K. ^{[1
]}

McLaughlin, Mike J. ^{[1
,2
]}

Waddington, Lynne ^{[3
]}

Kookana, Rai S. ^{[1
]}

机构：

[1] CSIRO Land & Water, Adv Mat Transformat Capabil Platform Nanosafety, Biogeochem Program, Glen Osmond, SA 5064, Australia

[2] Univ Adelaide, Sch Agr Food & Wine, Glen Osmond, SA 5064, Australia

[3] CSIRO Mat Sci & Engn, Adv Mat Transformat Capabil Platform Nanosafety, Parkville, Vic 3052, Australia

来源：

ENVIRONMENTAL POLLUTION | 2014年 / 193卷

关键词：

Silver; Silver sulphide; Environmental fate; Soil; Remobilisation; Nanoparticles; Biosolids; WASTE-WATER; TRANSFORMATION; RETENTION; RELEASE; SOLUBILITY; MECHANISMS; KINETICS; BEHAVIOR; ACID;

D O I：

10.1016/j.envpol.2014.06.008

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Manufactured nanoparticles (NPs) present in consumer products could enter soils through re-use of biosolids. Among these NPs are those based on silver (Ag), which are found sulphidised (e.g. silver sulphide, Ag2S) in biosolids. Herein, our aim was to examine the release of retained Ag and Ag2S NPs in soils and biosolids as facilitated by environmentally and agriculturally relevant ligands. Under natural soil conditions, exemplified by potassium nitrate and humic acid experiments, release of Ag retained in soil was limited. The highest total Ag release was facilitated by ligands that simulated root exudates (citrate) or fertilisers (thiosulphate). Released Ag was predominantly present in the colloidal phase (>3 kDa-< 0.45 mu m); intact NPs only identified in Ag2S-NP extracts. For biosolids containing nanoparticulate-Ag-S, release was also enhanced by thiosulphate, though mostly as colloidal-Ag - not intact NPs. These results suggest that exposure to NPs as a result of its release from soils or biosolids will be low. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：102 / 110

页数：9

共 40 条

[1] Humic Acid-Induced Silver Nanoparticle Formation Under Environmentally Relevant Conditions [J].

Akaighe, Nelson ;

MacCuspie, Robert I. ;

Navarro, Divina A. ;

Aga, Diana S. ;

Banerjee, Sarbajit ;

Sohn, Mary ;

Sharma, Virender K. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2011, 45 (09) :3895-3901

[2]

[Anonymous], 2013, PROJECT EMERGING NAN

[3] Fate and Risks of Nanomaterials in Aquatic and Terrestrial Environments [J].

Batley, Graeme E. ;

Kirby, Jason K. ;

McLaughlin, Michael J. .

ACCOUNTS OF CHEMICAL RESEARCH, 2013, 46 (03) :854-862

[4]

Bell RA, 1999, ENVIRON TOXICOL CHEM, V18, P9, DOI [10.1897/1551-5028(1999)018<0009:SCAGOS>2.3.CO

[5]

2, 10.1002/etc.5620180103]

[6] Nanoparticle silver released into water from commercially available sock fabrics [J].

Benn, Troy M. ;

Westerhoff, Paul .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2008, 42 (11) :4133-4139

[7]

Bjerrum J., 1958, Stability Constants of Metal-Ion Complexes, with Solubility Products of Inorganic Substances/Pt.II

[8] Low Concentrations of Silver Nanoparticles in Biosolids Cause Adverse Ecosystem Responses under Realistic Field Scenario [J].

Colman, Benjamin P. ;

Arnaout, Christina L. ;

Anciaux, Sarah ;

Gunsch, Claudia K. ;

Hochella, Michael F., Jr. ;

Kim, Bojeong ;

Lowry, Gregory V. ;

McGill, Bonnie M. ;

Reinsch, Brian C. ;

Richardson, Curtis J. ;

Unrine, Jason M. ;

Wright, Justin P. ;

Yin, Liyan ;

Bernhardt, Emily S. .

PLOS ONE, 2013, 8 (02)

[9] Retention and Dissolution of Engineered Silver Nanoparticles in Natural Soils [J].

Cornelis, Geert ;

Doolette, Casey ;

Thomas, Madeleine ;

McLaughlin, Mike J. ;

Kirby, Jason K. ;

Beak, Douglas G. ;

Chittleborough, David .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 2012, 76 (03) :891-902

[10] Solubility and Batch Retention of CeO2 Nanoparticles in Soils [J].

Cornelis, Geert ;

Ryan, Brooke ;

McLaughlin, Mike J. ;

Kirby, Jason K. ;

Beak, Douglas ;

Chittleborough, David .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2011, 45 (07) :2777-2782

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