NaYF4:Yb3+(58%), Tm3+@NaYF4@Au nanocomposite for 4-nitrophenol ultrasensitive quantitative detection and highly efficient catalytic reduction. (29th March 2022)

• Record Type: Journal Article
• Authors: Xu, Xia; Fu, Meirong; Yang, Min; Hu, Bing; Yang, Jitao; Gui, Wenjun; Guo, Jinxiu
• Is Part Of: New journal of chemistry. Volume 46:Number 16(2022)
• Page Start: 7385
• Page End: 7394
• Publication Date: 2022-03-29
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d2nj00740a
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : NaYF4 :Yb 3+ (58%), Tm 3+ @NaYF4 @Au composite nanomaterials were designed and synthesized through condition optimization for the quantitative detection and catalytic reduction of 4-NP. Abstract : 4-Nitrophenol (4-NP) is one of the main toxic water pollution substances. Most 4-NP fluorescence detection methods are based on the change in the fluorescence intensity of a single emission peak, which has low sensitivity, accuracy, and narrow analytical ranges. Herein, NaYF4 :Yb 3+ (58%), Tm 3+ @NaYF4 @Au were designed and synthesized for the quantitative detection of 4-NP due to the fluorescence intensity ratio of two upconversion emission peaks, the analytical range is 0.01–100 μg mL −1 and the detection limit is 0.01 μg mL −1 . In addition, 1.66 nm Au nanoparticles randomly distributed on the surface of composite nanomaterials can effectively cause the catalytic reduction of 4-NP. Therefore, NaYF4 :Yb 3+ (58%), Tm 3+ @NaYF4 @Au is a type of composite nanomaterial with great development potential and application prospects in the detection and catalysis of 4-NP.