TY - JOUR
T1 - SiO2/NiFe2O4 nanocomposites
T2 - Synthesis, characterization and their catalytic activity for 4-nitroaniline reduction
AU - Yulizar, Yoki
AU - Apriandanu, Dewangga Oky Bagus
AU - Zahra, Zulda Adya
N1 - Funding Information:
This research was granted by Hibah PUTI Q2 2020 Universitas Indonesia No. NKB-1631/UN2.RST/HKP.05.00/2020 through Directorate of Research and Development, Universitas Indonesia.
Publisher Copyright:
© 2021 Elsevier B.V.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/3/1
Y1 - 2021/3/1
N2 - In this work, SiO2/NiFe2O4 nanocomposites (NC) were synthesized in the two-phase system of hexane-water using Kleinhovia hospita L. leaves extract (KLE) with the assistance of high-speed stirring (HSS) method. The catalytic activity of SiO2/NiFe2O4 NC was evaluated for 4-nitroaniline reduction by using NaBH4 as a reducing agent. SiO2/NiFe2O4 NC possessed excellent catalytic activity rather than SiO2 and NiFe2O4 nanoparticles (NPs) in 4-nitroaniline reduction, and over 95% of 4-nitroaniline was reduced to p-phenylenediamine within 30 min. The increased catalytic activity of SiO2 NPs could be ascribed to the high adsorption capacity and the enhancement of the charge separation due to a modification with NiFe2O4.
AB - In this work, SiO2/NiFe2O4 nanocomposites (NC) were synthesized in the two-phase system of hexane-water using Kleinhovia hospita L. leaves extract (KLE) with the assistance of high-speed stirring (HSS) method. The catalytic activity of SiO2/NiFe2O4 NC was evaluated for 4-nitroaniline reduction by using NaBH4 as a reducing agent. SiO2/NiFe2O4 NC possessed excellent catalytic activity rather than SiO2 and NiFe2O4 nanoparticles (NPs) in 4-nitroaniline reduction, and over 95% of 4-nitroaniline was reduced to p-phenylenediamine within 30 min. The increased catalytic activity of SiO2 NPs could be ascribed to the high adsorption capacity and the enhancement of the charge separation due to a modification with NiFe2O4.
KW - 4-Nitroaniline reduction
KW - Catalytic activity
KW - Kleinhovia hospita L.
KW - SiO/NiFeO nanocomposites
KW - Two-phase system
UR - http://www.scopus.com/inward/record.url?scp=85099782101&partnerID=8YFLogxK
U2 - 10.1016/j.matchemphys.2021.124243
DO - 10.1016/j.matchemphys.2021.124243
M3 - Article
AN - SCOPUS:85099782101
SN - 0254-0584
VL - 261
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
M1 - 124243
ER -