Low cost red mud modified graphitic carbon nitride for the removal of organic pollutants in wastewater by the synergistic effect of adsorption and photocatalysis

By Wei‐long Shi, Hongji Ren, Xiliu Huang, Ming-yang Li, Yu‐bin Tang, F. Guo. 2020

193 citations recorded by the source corpus.

Abstract The red mud/g-C3N4 (RM-CN) composite was directly prepared via one-step thermal polymerization method using melamine and industrial waste residue (red mud) as raw materials. Under the synergistic effect of adsorption and photocatalysis, RM-CN composites have a significant effect for the removal of organic pollutants from wastewater. Compared with pure CN, the specific surface area of RM-CN has been significantly enhanced with the introduction of RM. Additionality, the optical absorption and photocurrent response exhibit obvious enhancement with respect to RM-CN as compared with that of pristine CN photocatalyst. The optimized 0.8% RM-CN product (with the RM mass content of 0.8 wt% in precursor) displayed referable photocatalytic degradation efficiency for antibiotics and dyes under visible light, as well as excellent recycle performance. This work poses a great potential in the actual wastewater treatment, and it is of great significance to the resource utilization and the cost saving of the raw material.

Subfields: Materials Chemistry, Organic Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/3dc4da7f224fa2a39603631a3bfde1e7accbf612