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Title: Evolution of Oxyhalide Crystals under Electron Beam Irradiation: An in Situ Method To Understand the Origin of Structural Instability

Journal Article · · Inorganic Chemistry

The oxyhalides have attracted growing interest because of their excellent photocatalytic performance. However, their structural instability hampers further development toward practical applications, a major challenge of current concerns. It is appealing to figure out the origin of structural instability and guide the design of advanced oxyhalide crystals for efficient photocatalysis. In this study, the decomposition of BiOCl crystals, a typical oxyhalide, is triggered by electron beam irradiation and investigated in situ by transmission electron microscopy. The results indicate that the instability originates from the unique layered structure of BiOCl crystals; the interlayer van der Waals bonds are easily broken under electron beam irradiation via the assistance of hydroxyl groups. This facilitates the formation of O/Cl-deficient BiO1–xCl1–y species, Bi metal nanoparticles, and nanobubbles (gaseous substance) that are confined between the adjacent layers. Surface reconstruction would be an effective way to stabilize the oxyhalide crystals.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Univ. of California, Oakland, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1543621
Journal Information:
Inorganic Chemistry, Vol. 57, Issue 15; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

References (30)

Van der Waals heterostructures journal July 2013
Liquid Exfoliation of Layered Materials journal June 2013
The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets journal April 2013
Superior visible light hydrogen evolution of Janus bilayer junctions via atomic-level charge flow steering journal May 2016
The optoelectronic role of chlorine in CH3NH3PbI3(Cl)-based perovskite solar cells journal June 2015
Van der Waals heterostructures and devices journal July 2016
Dynamic surface self-reconstruction is the key of highly active perovskite nano-electrocatalysts for water splitting journal July 2017
Nanoscale structural oscillations in perovskite oxides induced by oxygen evolution journal October 2016
Bismuth oxyhalide nanomaterials: layered structures meet photocatalysis journal January 2014
Enhanced photocatalytic activity induced by sp3 to sp2 transition of carbon dopants in BiOCl crystals journal February 2018
New Reaction Pathway Induced by Plasmon for Selective Benzyl Alcohol Oxidation on BiOCl Possessing Oxygen Vacancies journal February 2017
Study of the electronic structure and photocatalytic activity of the BiOCl photocatalyst journal November 2006
Increasing visible-light absorption for photocatalysis with black BiOCl journal January 2012
Hydroxyl-Dependent Evolution of Oxygen Vacancies Enables the Regeneration of BiOCl Photocatalyst journal May 2017
Vacancy Associates Promoting Solar-Driven Photocatalytic Activity of Ultrathin Bismuth Oxychloride Nanosheets journal May 2013
Self-doping and surface plasmon modification induced visible light photocatalysis of BiOCl journal January 2013
Surface Structure-Dependent Molecular Oxygen Activation of BiOCl Single-Crystalline Nanosheets journal October 2013
Photofuel cell comprising titanium oxide and bismuth oxychloride (BiO 1−x Cl 1−y ) photocatalysts that uses acidic water as a fuel journal January 2015
Size-dependent crystalline fluctuation and growth mechanism of bismuth nanoparticles under electron beam irradiation journal January 2016
Insights into the growth of bismuth nanoparticles on 2D structured BiOCl photocatalysts: an in situ TEM investigation journal January 2015
Photocatalytic properties of BiOX (X = Cl, Br, and I) journal June 2008
In situ TEM of radiation effects in complex ceramics journal March 2009
In-situ atomic-scale observation of irradiation-induced void formation journal August 2013
Bubble nucleation and migration in a lead–iron hydr(oxide) core–shell nanoparticle journal October 2015
In situ study of the initiation of hydrogen bubbles at the aluminium metal/oxide interface journal June 2015
Growth dynamics and gas transport mechanism of nanobubbles in graphene liquid cells journal February 2015
Surface Tension and Stability of a Nanobubble in Water: Molecular Simulation journal January 2008
First-principles studies on facet-dependent photocatalytic properties of bismuth oxyhalides (BiOXs) journal January 2012
Photocatalytic study of BiOCl for degradation of organic pollutants under UV irradiation journal September 2010
BiOCl Nanosheets with Controlled Exposed Facets and Improved Photocatalytic Activity journal June 2017

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