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Separation Science and Technology Volume 51, 2016 - Issue 6
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Photodegradation

Visible light-induced photodegradation of methylene blue and reduction of 4-nitrophenol to 4-aminophenol over bio-synthesized silver nanoparticles

Arif Ullah KhanState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, P. R. ChinaView further author information
,
Yun WeiState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, P. R. ChinaView further author information
,
Zia Ul Haq KhanDepartment of Chemistry, University of Science and Technology Bannu, Khyber Pakhtunkhwa, PakistanView further author information
,
Kamran TahirState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, P. R. ChinaView further author information
,
Aftab AhmadState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, P. R. ChinaView further author information
,
Shahab Ullah KhanDepartment of Physics, University of Peshawar, Khyber Pakhtunkhwa, PakistanView further author information
,
Faheem Ullah KhanState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, P. R. ChinaView further author information
,
Qudrat Ullah KhanState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, P. R. ChinaView further author information
&
Qipeng YuanState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, P. R. ChinaCorrespondence[email protected]
View further author information
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Pages 1070-1078 | Received 27 May 2015, Accepted 06 Jan 2016, Published online: 30 Mar 2016
 
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ABSTRACT

Silver nanoparticles are synthesized by an eco-friendly protocol using Litchi chinensis fruit juice as a reducing and capping agent. UV-vis spectroscopy (SPR band around 447 nm), XRD (crystallinity), HRTEM (size and morphology), EDS (elemental composition) and FTIR (surface functionalities) were used to characterize silver nanoparticles. They are highly dispersed, mostly spherical with an average size of 10 nm. The prepared nanoparticles exhibited rapid reduction of 4-nitro phenol to 4-amino phenol (K = 0.09/min) and photodegradation of methylene blue (K = 0.0335/min) under visible light. The prepared nanoparticles could be an excellent candidate for the separation of hazardous materials.

Funding

The authors would like to acknowledge the financial support from China scholarship council (CSC No. 2013GXZ036) and National Natural Science Foundation of China (No. 21376017 and 21176018).

Additional information

Funding

The authors would like to acknowledge the financial support from China scholarship council (CSC No. 2013GXZ036) and National Natural Science Foundation of China (No. 21376017 and 21176018).

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