About the Authors

Fei Li

Affiliation School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China

Xiaofei Zhou

Affiliation School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China

Hongyu Zhou

Affiliation School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China

Jianbo Jia

Affiliation School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China

Liwen Li

Affiliation School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China

Shumei Zhai

bingyan@yahoo.com (BY); smzhai@sdu.edu.cn (SZ)

Affiliation School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China

Bing Yan

bingyan@yahoo.com (BY); smzhai@sdu.edu.cn (SZ)

Affiliation School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BY FL. Performed the experiments: FL SZ XZ HZ JJ LL. Analyzed the data: BY FL. Wrote the paper: BY FL SZ.