Funding for this research was provided by:
Natural Science Foundation of Hubei Province (2015CFA003)
National Natural Science Foundation of China (21474078, 51303143, 51521001, 51573144)
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COPYRIGHT AND LICENSING
: The Royal Society of Chemistry has an exclusive publication licence for this journal
PUBLICATION HISTORY
: Received 11 May 2017; Accepted 13 June 2017; Accepted Manuscript published 14 June 2017; Advance Article published 29 June 2017; Version of Record published 13 July 2017