Method for preparing sulfur-doped bismuthyl carbonate catalyst
A bismuth oxycarbonate catalyst, sulfur doping technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve problems such as low availability, and achieve Improved catalytic effect and good dispersibility
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Embodiment 1
[0010] Dissolve 5g of bismuth nitrate in 500mL of dilute nitric acid with a concentration of 30% by mass, and add 160mL of β-mercaptopropionic acid with a concentration of 150g / L dropwise under stirring, and continue stirring for 20min after the addition is completed. The solids were transferred together to a polytetrafluoroethylene substrate hydrothermal reaction kettle, put into an oven and reacted at 180°C for 24 hours, then cooled naturally, and the solids obtained after centrifugation were washed with deionized water and dried to obtain a sulfur-doped Heterobismuth oxycarbonate catalyst.
[0011] 0.5g of sulfur-doped bismuth oxycarbonate catalyst was added to 100mL of methylene blue wastewater with a concentration of 35mg / L, and reacted for 70min under the irradiation of a 120W LED lamp, and the decolorization rate was 93.4%.
[0012] Using commercially available bismuth oxycarbonate, under the same conditions, the removal rate is only 21.3%.
Embodiment 2
[0014] Dissolve 5g of bismuth nitrate in 100mL of dilute nitric acid with a concentration of 10% by mass, and add 80mL of β-mercaptopropionic acid with a concentration of 20g / L dropwise under stirring, and continue stirring for 10min after the addition is completed. The solids were transferred together to a polytetrafluoroethylene substrate hydrothermal reaction kettle, put into an oven and reacted at 160°C for 18 hours, then cooled naturally, and the solids obtained after centrifugation were washed with deionized water and dried to obtain a sulfur-doped Heterobismuth oxycarbonate catalyst.
[0015] 0.5g of sulfur-doped bismuth oxycarbonate catalyst was added to 100mL of acid scarlet wastewater with a concentration of 25mg / L, and reacted for 85min under the irradiation of a 120W LED lamp, and the decolorization rate was 94.1%.
Embodiment 3
[0017] Dissolve 5g of bismuth nitrate in 200mL of dilute nitric acid with a concentration of 20% by mass, and add 120mL of β-mercaptopropionic acid with a concentration of 130g / L dropwise under stirring. The solids were transferred together to a polytetrafluoroethylene substrate hydrothermal reaction kettle, put into an oven and reacted at 180°C for 24 hours, then cooled naturally, and the solids obtained after centrifugation were washed with deionized water and dried to obtain a sulfur-doped Heterobismuth oxycarbonate catalyst.
[0018] 0.5g of sulfur-doped bismuth oxycarbonate catalyst was added to 100mL of rhodamine B wastewater with a concentration of 25mg / L, and reacted for 85min under the irradiation of a 120W LED lamp, and the decolorization rate was 93.9%.
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