Yiqi Yang, Ph.D.

Contact Information:
221 HECO Building
Lincoln: East Campus
(402) 472-5197

Charles Bessey Professor
Professor of Textiles; Professor of Biological Systems Engineering
Academic Degrees
  • Ph.D., Textile Science, Purdue University
  • M.E., Textile Chemical Engineering, Donghua University
  • 60% Research (BSE 15%; TMFD 45%);
  • 30% Teaching
  • 10% Service
Areas of Research and Professional Interest
  • Biobased Materials
  • Polymers and Fibers
  • Green Processes for Fibers and Soft Materials
  •  Yang, Yiqi, and Reddy, Narenda. Method for making natural cellulosic fiber bundles from cellulosic sources. US Patent 7,887,672, Feb. 15, 2011.
  • Fan, Qinguo, Yang, Yiqi, Ugbolue, Samuel C., and Wilson, Alton R. Methods of enhancing dyeability of polymers. US Patent 6,646,026, November 11, 2003.
  • Berkstresser, IV, G.A., Dunbar, R.A., McLellan, G.R., Plischke, L.M.W., and Yang, Y.Q. Removing color from Ionically Dyed Recyclable Polymeric Materials. US Patent 6,083,283, July 4, 2000.
  • Yang, Y.Q., Plischke, L.M.W., McLellan, G.R., and Dickerson, J.L. Process for Separating Polyamide from Colorant in Recycling of Colored Polyamide Materials, Especially Carpets. US Patent 6,036,726, March 14, 2000.
  • Ladisch, M.R., Kohlman, K.L., Westgate, P.L., Weil, J.R., and Yang, Y.Q.  Processes for Treating Cellulosic Material. US Patent 5,846,787, December 8, 1998. 
  • Yang, Y.Q., and Li, S. A Process for Increasing the Crease Resistance of Silk Textiles and a Resulting Crease Resistant Textile. US Patent 5,296,269, March 22, 1994.
Selected Publications

Selected Refereed Journal Articles

(Complete list: https://scholar.google.com/citations?hl=en&user=ljwP&user=ljwP-_kAAAAJ)

  1. Mu, B.N., Hassan, F., and Yang*, Y.Q.  Controlled assembly of secondary keratin structures for continuous and scalable production of tough fibers from chicken feathers. Green Chemistry. 22(5), 1726-1734 (2020).
  2. Mi, X., Mu, B.N., Li, W., Xu, H.L. and Yang*, Y.Q. From poultry wastes to quality protein products via restoration of secondary structure with extended disulfide linkages. ACS Sustainable Chemistry & Engineering. 8(3). 1396-1405 (2020).
  3. Liu, L.Y., Mu, B.N., Li*, W., and Yang* Y.Q. A semi-stable emulsion system based on spent cooking oil for pilot-scale reactive dyeing with minimal discharges. ACS Sustainable Chemistry & Engineering. 7(16). 13698-13707 (2019).
  4. Mu, B.N., Liu, L.Y., Li, W., and Yang*, Y.Q.  A water/cottonseed oil bath with controlled dye sorption for high dyeing quality and minimum discharges. Journal of Cleaner Production. 236. 117566 (10 pages) (2019).
  5. Liu, L.Y., Mu, B.N., Li*, W., and Yang* Y.Q. Cost-effective reactive dyeing using spent cooking oil for minimal discharge of dyes and salts. Journal of Cleaner Production. 227. 1023-1034 (2019).
  6. Li, W., Mu, B.N., and Yang*, Y.Q. Feasibility of industrial-scale treatment of dye wastewater via bio-adsorption technology. Bioresource Technology. 277, 157-170 (2019).
  7. Mu, B.N., Xu, H.L., Li, W. and Yang*, Y.Q. Quantitation of fast hydrolysis of cellulose catalyzed by its substituents for potential biomass conversion. Bioresource Technology. 273, 305-312(2019).
  8. Mu, B.N., Li, W., Xu, H.L., Xu, L. and Yang*, Y.Q. Freeze-Extrusion for Controllable Assembly of 3-Dimensional Ultra-Fine and Amorphous Fibrous Matrices: Potential Applications in Sorption. Journal of Materials Chemistry A. Materials for Energy and Sustainability. 6(22). 10320-10330(2018).
  9. Pan, G.W., Xu*, H.L., Mu, B.N., Ma, B.M. and Yang*, Y.Q.  A clean approach for potential continuous mass production of high-molecular-weight polylactide fibers with fully stereo-complexed crystallites. Journal of Cleaner Production. 176. 151-158(2018).
  10. Pan, G.W., Xu*, H.L., Mu, B.N., Ma, B.M., Yang, J., and Yang*, Y.Q. Complete stereo-complexation of enantiomeric polylactides for scalable continuous production. Chemical Engineering Journal.  328. 759-767 (2017).
  11. Hou*, X.L., Fang, F.F., Guo, X.L., Jakpa, W., Ma, B.M. Tao, Y.Y., Yang*, Y.Q. Potential of Sorghum Husk Extracts as a Natural Functional Dye for Wool Fabrics. ACS Sustainable Chemistry & Engineering. 5(6) 4589-4597(2017).
  12. Song, K.L., Xu, H.L., Xie, K.L., and Yang*, Y.Q. Keratin-based biocomposites reinforced and crosslinked with dual-functional cellulose nanocrystals. ACS Sustainable Chemistry & Engineering5(7), 5669-5678(2017).
  13. Song, K.L., Xu, H.L., Xu, L., Xie, K.L., and Yang*, Y.Q. Preparation of cellulose nanocrystal-reinforced keratin bioadsorbent for effective removal of dyes from aqueous solution. Bioresource Technology. 232. 254-262 (2017).
  14. Song, K.L., Xu, H.L., Mu, B.N., Xie, K.L., and Yang*, Y.Q. Non-toxic and clean crosslinking system for protein materials: effect of extenders on crosslinking performance. Journal of Cleaner Production. 150. 214-223 (2017).  
  15. Dong, Z., Hou, X.L., Haigler, I., and Yang*, Y.Q. Preparation and properties of cotton stalk bark fibers and their cotton blended yarns and fabrics. Journal of Cleaner Production. 139. 267-276 (2016).
  16. Xu, H.L., Yang, M.P., Hou, X.L., Li, W., Su, X.Z., and Yang*, Y.Q. Industrial trial of high-quality all green sizes composed of soy-derived protein and glycerol. Journal of Cleaner Production.  135. 1-8(2016).
  17. Liu, J., Wang, B.J., Xu, X.M., Chen, J.G., Chen, L.Y., and Yang*, Y.Q. Green Finishing of Cotton Fabrics Using Xylitol-Extended Citric Acid Cross-linking System on a Pilot Scale. ACS Sustainable Chemistry & Engineering. 4(3), 1131-1138 (2016).
  18. Pan, G.W., Zhao, Y., Xu, H.L., Hou, X.L., and Yang*, Y.Q. Compression Molded Composites from Discarded Nylon 6/Nylon 6,6 Carpets for Sustainable Industries. Journal of Cleaner Production. 117. 212-220 (2016).
  19. Xu, S.X., Chen, J.G., Wang, B.J., and Yang*, Y.Q. An Environmentally Responsible Polyester Dyeing Technology Using Liquid Paraffin. Journal of Cleaner Production. 112. 987-994 (2016).
  20. Xu, H.L., Canisag, H. and Yang*, Y.Q. Robust and Flexible Films from 100% Starch Crosslinked by Non-Toxic Disaccharide Derivative. ACS Sustainable Chemistry & Engineering. 3(11). 2631-2639 (2015).
  21. Mu, B.N., Xu, H.L., and Yang*, Y.Q., Accelerated hydrolysis of substituted cellulose for potential biofuel production: kinetic study and modeling. Bioresource Technology. 196, 332-338(2015).
  22. Xu, S.X., Chen, J.G., Wang, B.J., and Yang*, Y.Q. Sustainable and Hydrolysis-Free Dyeing Process for Polylactic Acid Using Non-Aqueous Medium. ACS Sustainable Chemistry & Engineering. 3(6) 1039-1046 (2015). Cover Report.
  23. Zhao, Y., Zhao, Y.Z., Xu, H.L., and Yang*, Y.Q.  A Sustainable Slashing Industry Using Biodegradable Sizes from Modified Soy Proteins to Replace Petro-Based Poly(vinyl alcohol). Environmental Science & Technology. 49(4). 2391-2397(2015).
  24. Hou, X.L., Sun, F., Yan, D., Xu, H.L., Dong, Z., Li, Q., and Yang*, Y.Q.  Preparation of Lightweight Polypropylene Composites Reinforced by Cotton Stalk Fibers from Combined Steam Flash-Explosion and Alkaline Treatment. Journal of Cleaner Production. 83. 454-462 (2014).
  25. Shi, Z., Reddy, N., Hou, X.L., and Yang*, Y.Q.  Tensile Properties of Thermoplastic Feather Films Grafted with Different Methacrylates. ACS Sustainable Chemistry & Engineering. 2(7), 1849-1856(2014).
  26. Xu, H.L., and Yang*, Y.Q.  Controlled de-crosslinking and disentanglement of feather keratin for fiber preparation via a green process. ACS Sustainable Chemistry & Engineering. 2(6) 1404-1410(2014).
  27. Reddy, N., Zhang, Y., and Yang*, Y.Q. Corn Distillers Dried Grains as Sustainable and Environmentally Friendly Warp Sizing Agents. ACS Sustainable Chemistry & Engineering. 1(12), 1564-1571(2013).
  28. Chen, L.H., Reddy, N., and Yang*, Y.Q.  Remediation of Environmental Pollution by Substituting Poly(vinyl alcohol) with Biodegradable Warp Size from Wheat Gluten. Environmental Science & Technology. 47(9) 4505-4511(2013).
  29. Xu, H.L. Jiang, Q.R., Reddy, N., and Yang*, Y.Q.  Hollow Nanoparticles from Zein for Potential Medical Applications. Journal of Materials Chemistry. 21(45)18227-18235(2011) .
  30. Reddy, N. and Yang*, Y.Q. Potential of Plant Proteins for Medical Applications, Trends in Biotechnology.  29(10)490-498(2011).
  31. Reddy, N., Hu, C.Y., Yan, K., and Yang*, Y.Q. Acetylation of Corn Distillers Dried Grains. Applied Energy. 88(5) 1664-1670(2011).
  32. Jiang, Q.R., Reddy, N., and Yang*, Y.Q.  Cytocompatible Crosslinking of Electrospun Zein Fibers for the Development of Water Stable Tissue Engineering Scaffolds. Acta Biomaterialia. 6(10) 4042-4051(2010).
  33. Zou, Y., Huda, S., and Yang*, Y.Q. Light-Weight Composites from Long Wheat Straw and Polypropylene Web. Bioresource Technology, 101(6) 2026-2033 (2010).
  34. Reddy, N., and Yang*, Y.Q. Natural Cellulose Fibers from Soybean Straw. Bioresource Technology. 100(14), 3593-3598(2009).
  35. Reddy, N., and Yang*, Y.Q. Properties and Potential Applications of Natural Cellulose Fibers from the Bark of Cotton Stalks. Bioresource Technology. 100(14), 3563-3569(2009).
  36. Reddy, N. and Yang*, Y. Characterizing natural cellulose fibers from velvet leaf (Abutilon theophrasti) stem. Bioresource Technology. 99(7), 2449-2454(2008).
  37. Reddy, N. and Yang*, Y.Q. Properties and potential applications of natural cellulose fibers from cornhusks. Green Chemistry, 7(4), 190 – 195 (2005). Cover Page Feature of the research.
  38. Reddy, N. and Yang*, Y.Q. Biofibers from agricultural byproducts for industrial applications. Trends in Biotechnology, 23(1) 22-27 (2005).

Books Authored and Edited

  1. Yang, Y.Q., Yu, J.Y., Xu, H.L., and Sun, B.Z. edited book. Porous Lightweight Composites Reinforced with Fibrous Structures. 368 p. 4 parts, 13 Chapters. 140 Figures and 39 Tebles. Published by Springer-Verlag Berlin Heidelberg, Germany.  (Heidelberger Platz 3, 14197 Berlin, Germany). ISBN 978-3-662-53802-9; ISBN 978-3-662-53804-3 (eBook). DOI 10.1007/978-3-662-53804-3. Library of Congress Control Number 2016962702. Copyright Springer-Verlag GmbH Germany 2017.
  2. Reddy, N., and Yang, Y.Q. authored book. Innovative Biofibers from Renewable Resources. 454 p. 10 parts, 75 Chapters and 210 illustrations. Springer-Verlag Berlin Heidelberg, Germany. ISBN 978-3-662-45135-9; ISBN 978-3-662-45136-6 (eBook). DOI 10.1007/978-3-662-45136-6. Springer Heidelberg, New York, Dordrecht, London. Library of Congress Control Number 2014957175. Copyright Springer-Verlag Berlin Heigelberg. 2015.
  3. Yang, Y.Q., Xu, H.L. and Yu, X. edited book. Lightweight Materials from Biopolymers and Biofibers. ACS Symposium Series 1175. Copyright: American Chemical Society, Washington, DC. USA. October 21, 2014. 299pp. ISBN: 978-0-8412-2990-7; eISBN: 978-0-8412-2997-6; DOI: 10.1021/bk-2014-1175.