@misc{10481/95579,
year = {2017},
month = {4},
url = {https://hdl.handle.net/10481/95579},
abstract = {Dissimilatory reduction of sulfate, mediated by various species of sulfate-reducing bacteria (SRB) and a few
characterized species of archaea, can be used to remediate acid mine drainage (AMD). Hydrogen sulfide
(H2S/HS ) generated by SRB removes toxic metals from AMD as sulfide biominerals. For this, SRB are
usually housed in separate reactor vessels to those where metal sulfides are generated; H2S is delivered
to AMD-containing vessels in solution or as a gas, allowing controlled separation of metal precipitation
and facilitating enhanced process control. Industries such as optoelectronics use quantum dots (QDs) in
various applications, e.g. as light emitting diodes and in solar photovoltaics. QDs are nanocrystals with
semiconductor bands that allow them to absorb light and re-emit it at specific wavelength couples,
shifting electrons to a higher energy and then emitting light during the relaxation phase. Traditional QD
production is costly and/or complex. We report the use of waste H2S gas from an AMD remediation
process to synthesize zinc sulfide QDs which are indistinguishable from chemically prepared
counterparts with respect to their physical and optical properties, and highlight the potential for
a empirical process to convert a gaseous “waste” into a high value product.},
organization = {NERC (Grant No. NE/L014076/1
and NE/L014114/1)},
organization = {Birmingham Science City (West Midlands
Centre for Advanced Materials Project 2), with support from
Advantage West Midlands and part funded by the European
Regional Development Fund},
publisher = {Royal Society of Chemistry},
title = {Biosynthesis of zinc sulfide quantum dots using waste off-gas from a metal bioremediation process},
doi = {10.1039/C6RA17236A},
author = {J. Murray, Angela and Roussel, Jimmy and Rolley, John and Woodhall, Frankie and P. Mikheenko, Iryna and Barrie Johnson, D. and Gómez Bolívar, Jaime and Merroun, Mohamed Larbi and E. Macaskie, Lynne},
}