1. Department of Chemistry and Biochemistry; Lamar University; Beaumont TX 77710 USA
2. Integrated Composites Laboratory (ICL), Dan F. Smith Department of Chemical Engineering; Lamar University; Beaumont TX 77710 USA
3. Department of Chemistry and Biochemistry; Texas State University; San Marcos TX 78666 USA
4. College of Environmental Science and Engineering; Beijing Forestry University; Beijing 100083 China