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Stepwise Evolution of AgCl Microcrystals from Octahedron into Hexapod with Mace Pods and their Visible Light Photocatalytic Activity

1
Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China
2
Department of Chemistry, Zhejiang University, Hangzhou 310027, China
3
Hospital of Zhejiang University, Zhejiang University, Hangzhou 310027, China
*
Author to whom correspondence should be addressed.
Crystals 2019, 9(8), 401; https://doi.org/10.3390/cryst9080401
Received: 9 July 2019 / Revised: 23 July 2019 / Accepted: 1 August 2019 / Published: 2 August 2019
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Abstract

In this work, we have synthesized hexapods AgCl crystals with mace pods for the first time. Diallyldimethylammonium chloride (DDA)-controlled stepwise evolution of AgCl crystals from octahedron to hexapods with mace pods are achieved by one-pot method. The intermediates have been captured which show the basic process of crystal growth. In this process, octahedra AgCl crystals firstly grow along the <100> direction and then change to grow in the <110> direction. At the same time, the size of AgCl grow from 2 μm to 20 μm. Due to the poor absorption of visible light by AgCl, sodium borohydride(NaBH4) is used to reduce AgCl hexapods with mace pods crystals. By changing the mole ratio(R) of NaBH4 to AgCl, the new structure was reduced to obtain a series of [email protected] microstructures. Visible light catalysis effects of the [email protected] microstructures on degradation of methyl orange (MO) were investigated. The [email protected] microstructures with R = 0.02 have a high photocatalytic performance, which completely degrades MO in 40 minutes. View Full-Text
Keywords: hexapod AgCl; one-pot method; [email protected] microstructure; MO degradation hexapod AgCl; one-pot method; [email protected] microstructure; MO degradation
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Lu, Y.; Qin, Y.; Yu, D.; Zhou, J. Stepwise Evolution of AgCl Microcrystals from Octahedron into Hexapod with Mace Pods and their Visible Light Photocatalytic Activity. Crystals 2019, 9, 401.

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