TY - JOUR
T1 - In situ synthesis of selfsupported Ag NPs on AgZr2(PO4)3 NASICON type phosphate
T2 - Application in catalytic reduction of 4-nitrophenol
AU - Moussadik, Ali
AU - Halim, Mohammed
AU - Arsalane, Said
AU - Tielens, Frederik
AU - Kacimi, Mohamed
AU - Hamidi, Adnane El
PY - 2022/6
Y1 - 2022/6
N2 - Silver nanoparticles (Ag NPs) based catalysts are highly attractive for catalytic reactions. In this work, self-supported Ag NPs were successfully synthesized through in situ reduction of AgZr2(PO4)3 (AZP) NASICON-type phosphate using NaBH4 as both a reducing agent (BH4ˉ) and a source of compensator ions (Na+). The growth and self-adhesion of Ag NPs on the AZP surface and the compensation of Ag+ vacancies by Na+ inside the NASICON lattice were confirmed using various characterization techniques. The Ag NPs/Ag1-xNaxZr2(PO4)3 composite was then evaluated by the conversion of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). The experimental results indicated that the as-fabricated catalyst revealed excellent performance, where ∼99% reduction of 4-NP to 4-AP occurred in just 420 s by using only 2 mg of AZP. Additionally, the catalyst showed long-term stability throughout reuse after 10 consecutive cycles and can be recovered and recycled several times with no appreciable loss of catalytic activity.
AB - Silver nanoparticles (Ag NPs) based catalysts are highly attractive for catalytic reactions. In this work, self-supported Ag NPs were successfully synthesized through in situ reduction of AgZr2(PO4)3 (AZP) NASICON-type phosphate using NaBH4 as both a reducing agent (BH4ˉ) and a source of compensator ions (Na+). The growth and self-adhesion of Ag NPs on the AZP surface and the compensation of Ag+ vacancies by Na+ inside the NASICON lattice were confirmed using various characterization techniques. The Ag NPs/Ag1-xNaxZr2(PO4)3 composite was then evaluated by the conversion of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). The experimental results indicated that the as-fabricated catalyst revealed excellent performance, where ∼99% reduction of 4-NP to 4-AP occurred in just 420 s by using only 2 mg of AZP. Additionally, the catalyst showed long-term stability throughout reuse after 10 consecutive cycles and can be recovered and recycled several times with no appreciable loss of catalytic activity.
KW - 4-nitrophenol catalytic reduction
KW - In situ silver nanoparticles synthesis
KW - NASICON-type phosphate
UR - http://www.scopus.com/inward/record.url?scp=85123798788&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2022.111764
DO - 10.1016/j.materresbull.2022.111764
M3 - Article
AN - SCOPUS:85123798788
VL - 150
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
M1 - 111764
ER -