Journal of Advanced Ceramics

, Volume 7, Issue 1, pp 30–40 | Cite as

Synthesis of low-cost porous ceramic microspheres from waste gangue for dye adsorption

  • Shu Yan
  • Yiming Pan
  • Lu Wang
  • Jingjing Liu
  • Zaijuan Zhang
  • Wenlong Huo
  • Jinlong Yang
  • Yong Huang
Open Access
Research Article


Low-cost porous ceramic microspheres from waste gangue were prepared by simple spray drying and subsequent calcination. Effects of calcination temperature on phase and microstructure evolution, specific surface area, pore structure, and dye adsorption mechanism of the microspheres were investigated systematically. Results showed that the microspheres were spherical, with some mesopores both on the surface and inside the spheres. The phase kept kaolinite after calcined at 800 and 900°C and transformed into mullite at 1000°C. The microspheres calcined at 800°C showed larger adsorption capacity and removal efficiency than those calcined at higher temperatures. Methylene blue (MB) and basic fuchsin (BF) removal efficiency reached 100% and 99.9% with the microsphere dosage of 20 g/L, respectively, which was comparable to that of other low-cost waste adsorbents used to remove dyes in the literature. Adsorption kinetics data followed the pseudo-second-order kinetic model, and the isotherm data fit the Langmuir isotherm model. The adsorption process was attributed to multiple adsorption mechanisms including physical adsorption, hydrogen bonding, and electrostatic interactions between dyes and gangue microspheres. The low-cost porous microspheres with excellent cyclic regeneration properties are promising absorbent for dyes in wastewater filtration and adsorption treatment.


adsorption microspheres calcination microstructure equilibrium 



This project was funded by China Postdoctoral Science Foundation (Grant No. 2017M610085) and National Natural Science Foundation of China (NSFC, Nos. 51702184 and 51572140).


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Copyright information

© The Author(s) 2017

Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • Shu Yan
    • 1
  • Yiming Pan
    • 2
  • Lu Wang
    • 1
  • Jingjing Liu
    • 1
  • Zaijuan Zhang
    • 1
  • Wenlong Huo
    • 1
  • Jinlong Yang
    • 1
    • 2
  • Yong Huang
    • 1
  1. 1.State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and EngineeringTsinghua UniversityBeijingChina
  2. 2.School of Materials Science and EngineeringDalian Jiaotong UniversityLiaoningChina

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