Synthesis, Characterization, and Environmental Applications of Cu-Ni-Doped Bismuth Molybdate

Table 2

Comparison of Cr(VI) photoreduction by various catalysts from the literature.

Catalysts	pH	Catalyst amount (g)	Cr(VI) (ppm)	Degradation time (min)	Degradation efficiency (%)	References
Au/N-TiO2	—	1	10	240	90	[30]
Ag-Ag2S/TiO2	3	1	10	360	100	[31]
Bi2O3-TiO2	3	1	20	180	73.9	[32]
g-C3N4	2	0.05	25	180	75	[33]
Chitosan/g-C3N4/TiO2	2	0.33	30	240	90	[34]
Fe^3+-doped g-C3N4/MoS2	—	0.03	20	120	91.4	[35]
Zn-MOF	—	0.04	10	90	93	[36]
Niobate/titanate	5	—	0.2	240	90	[37]
TiO2/RGO/Fe3O4	4	0.56	—	100	95	[38]
CuNi/Bi2MoO6	4	0.03	10	40	97.92	This work
	4	0.03	50	40	85.1