TY - JOUR
T1 - CuO-bentonite-gold nanocomposites
T2 - Facile green preparation and their characterization
AU - Apriandanu, Dewangga Oky Bagus
AU - Yulizar, Yoki
N1 - Funding Information:
This research was granted by Hibah PDUPT 2020 from Ministry of Research and Technology/National Research and Innovation Agency (Kemenristek/BRIN) through Universitas Indonesia no: NKB-229/UN2.RST/HKP.05.00/2020.
Publisher Copyright:
© 2020 Elsevier B.V.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/2/1
Y1 - 2021/2/1
N2 - In this work, we design a facile green preparation of CuO-bentonite-gold nanocomposites by a pillarization-immobilization method. Bentonite has been successfully pillared with CuO (CuO-Bentonite) by using Tinospora crispa leaf extract. Gold nanoparticle (AuNPs) has immobilized in the interlayer of CuO-Bentonite. The presence of an amine group acts as a source of nitrogen bases for a hydrolyzing agent in the formation of CuO-bentonite. Meanwhile, the flavonoid secondary metabolites play an essential role in reducing Au3+ to Au0 nanoparticles. The dspacing value of CuO-bentonite was greater than dspacing value of Na-bentonite at 2θ of 5.29°, indicating CuO has been pillared in the bentonite interlayer. Moreover, AuNPs was systemically formed in the interlayer of CuO-bentonite confirmed by XRD and EDX. The morphology of CuO-bentonite-gold nanocomposites was in a layered shape with a particle size of approximately 30 nm. Additionally, this work reported a simple, affordable, and less-toxic method to modify bentonite for better performance.
AB - In this work, we design a facile green preparation of CuO-bentonite-gold nanocomposites by a pillarization-immobilization method. Bentonite has been successfully pillared with CuO (CuO-Bentonite) by using Tinospora crispa leaf extract. Gold nanoparticle (AuNPs) has immobilized in the interlayer of CuO-Bentonite. The presence of an amine group acts as a source of nitrogen bases for a hydrolyzing agent in the formation of CuO-bentonite. Meanwhile, the flavonoid secondary metabolites play an essential role in reducing Au3+ to Au0 nanoparticles. The dspacing value of CuO-bentonite was greater than dspacing value of Na-bentonite at 2θ of 5.29°, indicating CuO has been pillared in the bentonite interlayer. Moreover, AuNPs was systemically formed in the interlayer of CuO-bentonite confirmed by XRD and EDX. The morphology of CuO-bentonite-gold nanocomposites was in a layered shape with a particle size of approximately 30 nm. Additionally, this work reported a simple, affordable, and less-toxic method to modify bentonite for better performance.
KW - Characterization
KW - CuO-bentonite-gold nanocomposites
KW - Pillarization
KW - Tinospora crispa extract
UR - http://www.scopus.com/inward/record.url?scp=85095745727&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2020.128911
DO - 10.1016/j.matlet.2020.128911
M3 - Article
AN - SCOPUS:85095745727
SN - 0167-577X
VL - 284
JO - Materials Letters
JF - Materials Letters
M1 - 128911
ER -