University Chemistry ›› 2018, Vol. 33 ›› Issue (8): 26-31.doi: 10.3866/PKU.DXHX201801031

• Chemistry Laboratory • Previous Articles     Next Articles

Improvement of Synthesis Experiment of Bismuth Vanadate Pigment by pH Optimization

Min PENG,Jianxin SHI*(),Zhou WANG,Lianyun LI,Penglong CHEN   

  • Received:2018-01-19 Published:2018-08-30
  • Contact: Jianxin SHI
  • Supported by:


The effects of pH on the synthesis experiment of BiVO4 pigment were studied with improved experimental installation. Under the selected experimental conditions, the product was a mixture of a tetragonal phase, which dominated and a monoclinic one. pH of reaction system had significant influence on product color. Under acidic condition, the product was dark khaki. Under basic condition, product presented bright yellow. The pH=9 reaction system was recommended, because the product had a better bright yellow tone.

Key words: Bismuth vanadate, pH, XRD, Color