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One-Step Synthesis of [email protected]2 Nanoparticles for Enhanced Photocatalytic Performance

by Yufan Zhang 1, Fan Fu 1, Yuzhou Li 1, Desuo Zhang 1,2,* and Yuyue Chen 1,*
1
National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
2
Nantong Textile & Silk Industrial Technology Research Institute, Nantong 226314, China
*
Authors to whom correspondence should be addressed.
Nanomaterials 2018, 8(12), 1032; https://doi.org/10.3390/nano8121032
Received: 5 November 2018 / Revised: 3 December 2018 / Accepted: 10 December 2018 / Published: 12 December 2018
Polyamide network polymers (PNP) modified TiO2 nanoparticles (NPs) were decorated with Ag NPs in hydrothermal gel method, forming one-step synthesized photocatalysts, [email protected]2 NPs. The effect of PNP and the amount of Ag NPs added were investigated in this work. PNP acted as a nanocage to prevent TiO2 aggregation and capture Ag accurately, which could effectively control product sizes and improve dispersibility in solvents. Simultaneously, TiO2 NPs modified with Ag NPs exhibited remarkable photocatalytic effects. One-step synthesis simplified the experimental process and avoided the agglomeration of silver ions during the secondary reaction, achieving the purpose of uniform distribution at a specific location of TiO2 NPs. The prepared [email protected]2 NPs-0.5 could remove 79.49% of Methyl Orange (MO) after 3 h of ultraviolet light irradiation, which was 2.7 times higher than the reaction rate of pure TiO2 NPs. It also exhibited good photoactivity under Visible light conditions. Moreover, the mineralization rate of MO over the [email protected] NPs-0.5 could be up to 72.32% under UV light and 47.08% under Visible light irradiation, which revealed that the prepared catalysts could effectively degrade most of the MO to CO2 and H2O. The samples also demonstrated the excellent stability and easy recyclability with over 90% of the original catalytic level for MO degradation. The photocatalysts studied also exerted broad application prospects such as photovoltaic hydrogen production, electronic sensors and biomedicine. View Full-Text
Keywords: [email protected]2 NPs composite; one-step synthesis; photocatalytic; MO removal [email protected]2 NPs composite; one-step synthesis; photocatalytic; MO removal
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Zhang, Y.; Fu, F.; Li, Y.; Zhang, D.; Chen, Y. One-Step Synthesis of [email protected]2 Nanoparticles for Enhanced Photocatalytic Performance. Nanomaterials 2018, 8, 1032.

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