Visible-Light Driven Photocatalytic Degradation of Pirimicarb by Pt-Doped AgInS(2)Nanoparticles

doi:10.3390/catal10080857

中山醫學大學機構典藏 CSMUIR > 中山醫學大學研究成果 > 期刊論文 > Item 310902500/24723

Please use this identifier to cite or link to this item: https://ir.csmu.edu.tw:8080/ir/handle/310902500/24723

Title:	Visible-Light Driven Photocatalytic Degradation of Pirimicarb by Pt-Doped AgInS(2)Nanoparticles
Authors:	Tsai, H;Shaya, J;Tesana, S;Golovko, VB;Wang, SY;Liao, YY;Lu, CS;Chen, CC
Keywords:	platinum;AgInS2;doping;photocatalysis;pirimicarb;water treatment
Date:	2020
Issue Date:	2022-08-09T08:06:58Z (UTC)
Publisher:	MDPI
Abstract:	This study describes the synthesis and characterization of Pt-doped AgInS(2)nanoparticles and reports their prospective application as visible-light catalysts for photodegradation of frequently used pirimicarb insecticides, which pose serious health and environmental concerns. The nanomaterials were characterized by XRD, SEM, TEM, XPS, photoluminescence (PL), and UV-vis diffuse reflectance spectra (DRS). The presented photocatalytic method for water treatment from pirimicarb has the advantages of using visible light source without any costly additive such as H(2)O(2)needed in other employed methods. The Pt-doped AgInS(2)exhibited higher photocatalytic activities for pirimicarb degradation than undoped AgInS2. The 1.0 wt% Pt/AgInS(2)photocatalyst exhibited the highest photodegradation rate, showing enhancement of 56% in comparison to the pure AgInS(2)photocatalyst. The photodegradation rate was found to increase with increasing the catalyst dosage until reaching the optimal dosage of 1.0 g L-1. The pirimicarb degradation was significantly more efficient under acidic conditions, and the rates drastically dropped upon increasing the pH. The photocatalytic mechanism of Pt/AgInS(2)composites and the main active species involved in the process were investigated. The mechanism of pirimicarb degradation was proposed via two different pathways, N-dealkylation and decarbamoylation. Lastly, the photocatalysts demonstrated remarkable stability and were reusable in three successive catalytic tests without compromising catalytic activities. The Pt/AgInS(2)photocatalyst also exhibited efficiency and feasibility in pirimicarb removal from environmental lake and river water samples.
URI:	http://dx.doi.org/10.3390/catal10080857 https://www.webofscience.com/wos/woscc/full-record/WOS:000564671400001 https://ir.csmu.edu.tw:8080/handle/310902500/24723
Relation:	CATALYSTS ,2020 ,v10 ,issue 8
Appears in Collections:	[中山醫學大學研究成果] 期刊論文

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