A kind of waste water treatment agent and preparation method thereof
A wastewater treatment agent and a certain amount of technology, applied in water/sewage treatment, light water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of affecting the use efficiency, inconvenient recycling, etc., and reduce the band gap energy. , Reduce the cost of wastewater treatment, reduce the effect of wastewater treatment process
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Embodiment 1
[0017] (1) Magnetic carrier nano Fe 3 o 4 preparation of
[0018] Weigh a certain amount of Fe(NO 3 ) 3 and (NH 4 ) 2 Fe(SO 4 ) 2 dissolved in a certain amount of deionized water to form Fe(NO 3 ) 3 and (NH 4 ) 2 Fe(SO 4 ) 2 Aqueous solution was added to Fe(NO 3 ) 3 In an ammonia solution with 5 times the molar number, the formed black precipitate was left to stand for 6-12 hours, then centrifuged and washed with deionized water for 6-7 times. Vacuum drying at 80°C for 8-10 hours, magnetic carrier nano-Fe was obtained after magnetic separation 3 o 4 .
[0019] (2) SiO 2 @Fe 3 o 4 preparation of
[0020] by SiO 2 In SiO 2 @Fe 3 o 4 The content in is 20% and weighs a certain amount of nano-Fe 3 o 4 , add it to a mixed solution composed of 100mL isopropanol and 8mL ultrapure water, seal it and treat it with low-temperature ultrasonic treatment for 30min, then add 10mL concentrated ammonia water and the calculated amount of tetraethyl silicate in sequenc...
Embodiment 2
[0031] SiO in step (2) 2 In SiO 2 @Fe 3 o 4 The content in is 25%, in step (3) Zn-MOF-TiO 2 In Zn-MOF-TiO 2 / SiO 2 @Fe 3 o 4 The content in is 60%, Zn and TiO 2 The mol ratio is 0.02, Zn in step (4) 2+ -TiO 2 / SiO 2 @Fe 3 o 4 Medium Zn 2+ with TiO 2 The mol ratio is 0.02, and others are with embodiment 1.
Embodiment 3
[0033] SiO in step (2) 2 In SiO 2 @Fe 3 o 4 The content in is 30%, in step (3) Zn-MOF-TiO 2 In Zn-MOF-TiO 2 / SiO 2 @Fe 3 o 4 The content in is 75%, Zn and TiO 2 The mol ratio is 0.03, Zn in step (4) 2+ -TiO 2 / SiO 2 @Fe 3 o 4 Medium Zn 2+ with TiO 2 The mol ratio is 0.03, and others are with embodiment 1.
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