Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 10, Issue 1, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2021.106939
Keywords
NASICON phosphates; In situ silver nanoparticles; Organic dyes; Catalytic reduction
Categories
Funding
- Mohammed V University, Morocco
- Hassan II Academy of Science and Technology, Morocco
Ask authors/readers for more resources
This study successfully prepared self-supported Ag NPs/Ag1-xNaxTi2(PO4)(3) through in situ chemical reduction, which showed excellent catalytic performance in dye reduction reactions and could be regenerated via simple calcination route and recycled multiple times with no significant loss of catalytic activity.
Silver based-nanoparticles (Ag NPs) have been recently shown to be promising catalysts for the degradation of toxic organic dyes in wastewater despite the challenges of recycling. In this paper, self-supported Ag NPs were obtained at the surface of AgTi2(PO4)(3) NASICON-type phosphates through in situ chemical reduction by sodium borohydride (NaBH4). The adopted approach enables the self-growth of zero-valent Ag NPs on the NASICON matrix, and concomitantly leads to the formation of Ag1-xNaxTi2(PO4)(3). The crystalline structure, morphology and phase composition of the Ag nanocomposite has been characterized by several techniques. The catalytic performance of the as-fabricated Ag NPs/Ag1-xNaxTi2(PO4)(3) has then been verified in the reduction of methylene blue (MB) and methyl orange (MO) dyes, chosen as target pollutants. Our findings reveal a good catalytic activity with an efficiency and time of reaction of respectively similar to 96.30% and 320 s in the case of the MB reduction and similar to 94.60% and 270 s in the case of the MO reduction. Additionally, the initial AgTi2(PO4)(3) phase can be regenerated via simple calcination route and recycled up to five times with no appreciable loss of catalytic activity.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available