TY - JOUR
T1 - Bio-recovery of CuS nanoparticles from the treatment of acid mine drainage with potential photocatalytic and antibacterial applications
AU - Nancucheo, Iván
AU - Segura, Aileen
AU - Hernández, Pedro
AU - Canales, Christian
AU - Benito, Noelia
AU - Arranz, Antonio
AU - Romero-Sáez, Manuel
AU - Recio-Sánchez, Gonzalo
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/12/1
Y1 - 2023/12/1
N2 - In the present work, CuS nanoparticles were biorecovered from a real acid mine drainage (AMD) and its photocatalytic and antibacterial activities were studied. CuS were formed by delivering biogenic H2S produced by a continuous sulfidogenic bioreactor to an off-line vessel containing the AMD. The main physico-chemical properties of CuS nanoparticles were analyzed by UV–vis spectroscopy, TEM, FE-SEM, XRD and XPS. Moreover, its photocatalytic activity on the photodegradation of organic dyes in water and its antibacterial activity against several bacterial strains were studied and compared with CuS nanoparticles synthetized from a CuSO4 aqueous solution based on the same synthesis method. CuS nanoparticles from the real AMD showed similar physico-chemical properties and photocatalytic and antibacterial activities in comparison to CuS nanoparticles formed with the copper solutions. These results open the way to recover valorous CuS nanoparticles from AMD with potential industrial applications using a metal bioremediation process based on sulfidogenic bioreactors.
AB - In the present work, CuS nanoparticles were biorecovered from a real acid mine drainage (AMD) and its photocatalytic and antibacterial activities were studied. CuS were formed by delivering biogenic H2S produced by a continuous sulfidogenic bioreactor to an off-line vessel containing the AMD. The main physico-chemical properties of CuS nanoparticles were analyzed by UV–vis spectroscopy, TEM, FE-SEM, XRD and XPS. Moreover, its photocatalytic activity on the photodegradation of organic dyes in water and its antibacterial activity against several bacterial strains were studied and compared with CuS nanoparticles synthetized from a CuSO4 aqueous solution based on the same synthesis method. CuS nanoparticles from the real AMD showed similar physico-chemical properties and photocatalytic and antibacterial activities in comparison to CuS nanoparticles formed with the copper solutions. These results open the way to recover valorous CuS nanoparticles from AMD with potential industrial applications using a metal bioremediation process based on sulfidogenic bioreactors.
KW - CuS nanoparticles
KW - Photocatalysis
KW - Sulfidogenic bioreactor
KW - Treatment of acid mine drainage
UR - http://www.scopus.com/inward/record.url?scp=85167592665&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2023.166194
DO - 10.1016/j.scitotenv.2023.166194
M3 - Article
C2 - 37567303
AN - SCOPUS:85167592665
SN - 0048-9697
VL - 902
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 166194
ER -