A diblock copolymer template of nonbornene derivatives was employed to prepare Bi2O3 nanoparticles. The precursor formed within the nano-size micelles of diblock copolymer after introducing BiCl3 into the template. The precursor was calcined to produce Bi2O3 nano particles, XRD and TEM show that these nanoparticles are the α-Bi2O3 phase and have an average size from 10 to 30 nm. The photocatalytic performance of Bi2O3 particles has been tested in the degradation of methyl orange solution at visible light condition.

The synthesis and characterization of well-dispersed Bi2O3 nanoclusters from diblock copolymer are reported. A diblock copolymer template of norbornene derivatives was synthesized using ring-opening metathesis polymerization. By introducing BiCl3 into the diblock copolymer template, the bismuth oxide nanoclusters within the copolymer micelles were achieved by NaOH soaking and water wash. Finally, FTIR and TEM were used to characterize the nanocomposite morphology and the process of oxide formation

This study proposed a new type of hydrocyclone. A rotating ring containing one pair of symmetric blades was attached to the overflow pipe. The momentum of the inlet fluid drove the ring/blades to rotate, and the rotating blades swept small-sized particles to the hydrocyclone wall to be discharged from underflow. This design can destroy circulation flow on hydrocyclone roof and make small-sized particles to be separated.

Liquid-liquid equilibrium tie-line data are reported for ternary mixture of (water + methanol +β-citronellol) at 283.15 and 313.15 K. The miscibility for the ternary (water + methanol + β-citronellol) LLE was increasing as the the temperature increased. The experimental liquid–liquid equilibrium data have been satisfactorily represented by using an extended UNIQUAC model.