Self-Nitrogen-Doped Biochar Derived from Soybean cake for Rhodamine B Removal Prepared via Simple Carbonization

Authors

  • Xinyu Zhang Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; Hangzhou HUAWON New Material Technology Co., Ltd, Hangzhou 311305, China
  • Chao Yang Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing, 210037, China
  • Tingwei Zhang Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing, 210037, China
  • Jiaqi Guo Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing, 210037, China
  • Yusheng Gan Hangzhou HUAWON New Material Technology Co., Ltd, Hangzhou, 310000, China
  • Haibiao Wu Hangzhou HUAWON New Material Technology Co., Ltd, Hangzhou, 310000, China
  • Mohammad Rizwan Khan Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
  • Huining Xiao Department of Chemical Engineering, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
  • Junlong Song Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China

Keywords:

Self-nitrogen-doped biochar, Rhodamine B, Adsorption, Thermodynamics, Soybean cake

Abstract

Nitrogen-doped biochar performs much better in dye adsorption due to its rich functional groups. Soybean cake, a by-product of soybean oil production, comprises rich contents of cellulose, lignin, and protein. Therein, simple direct carbonization was utilized to prepare self-nitrogen-doped biochar (SCB). The results showed that the N content of SCB was 6.81 wt%, and its specific surface area was 18.8 m2/g. X-ray photoelectron spectroscopic results confirmed that the surface of SCB was rich in pyridine-N, pyrrole-N, graphite-N, and oxidized-N functional groups. The adsorption capacity of SCB for Rhodamine B was 17.2 mg/g, which is higher compared with other unactivated biochars. The results of thermodynamic parameters indicate that Rhodamine B adsorption on SCB is an endothermic, entropy-increasing, and spontaneous process.

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Published

2023-09-15

How to Cite

Zhang, X., Yang, C., Zhang, T., Guo, J., Gan, Y., Wu, H., … Song, J. (2023). Self-Nitrogen-Doped Biochar Derived from Soybean cake for Rhodamine B Removal Prepared via Simple Carbonization. BioResources, 18(4), 7460–7473. Retrieved from https://ojs.bioresources.com/index.php/BRJ/article/view/22806

Issue

Vol. 18 No. 4 (2023)

Section

Research Article or Brief Communication