Preparation of a Super-wetting TiO2 Nanorod Porous Membrane and Its Application in Emulsion Separation
A titanium dioxide, super-wetting technology, applied in the field of super-wetting porous membrane and its preparation, titanium dioxide nanorod porous membrane and its preparation, can solve problems such as limitations and poor stability, and achieve good application value, efficient separation, and good environmental stability Effect
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Embodiment 1
[0033] In this example, weigh 4g of PVP, 4g of glacial acetic acid, and 20g of ethanol in a 50mL Erlenmeyer flask, and continuously magnetically stir for 12h until completely dissolved to obtain a polymer PVP solution; at room temperature, weigh 12g of tetrabutyl titanate in In the aforementioned polymer PVP solution, the raw material was sealed with a conical bottle mouth, and magnetically stirred continuously at room temperature for 24 hours to form a yellow homogeneous and transparent spinning solution B.
[0034] Fill the spinning solution B into a syringe with a capacity of 10 mL, and advance at a speed of 4 mL / h. Connect the needle of the syringe to the positive pole of the high-voltage DC power supply, use tin foil as the receiving base, fix it on the roller, and connect it to the negative pole of the high-voltage power supply. Spinning parameters were adjusted: the electrospinning voltage was 19kV, the distance between the stainless steel needle and the receiving subst...
Embodiment 2
[0040] In this example, weigh 0.5g of PVP, 2.0g of glacial acetic acid, and 7.5g of ethanol in a 50mL Erlenmeyer flask, and continuously magnetically stir for 12h until completely dissolved; at room temperature, weigh 2.0g of tetrabutyl titanate in the aforementioned solution In the process, the raw material was sealed with a conical bottle mouth, and continuously magnetically stirred for 24 hours to form a yellow homogeneous and transparent spinning solution. Fill the spinning solution into a syringe with a capacity of 5 mL, and advance at a speed of 0.8 mL / h. Connect the needle of the syringe to the positive pole of the high-voltage DC power supply, use tin foil as the receiving base, fix it on the roller, and connect it to the negative pole of the high-voltage power supply. Adjust the spinning parameters: the electrospinning voltage is 15kV, the distance between the stainless steel needle and the receiving drum is adjusted to 18cm, and the rotating speed of the drum is 800r...
Embodiment 3
[0045] In this example, weigh 4.0g of PVP, 4.0g of glacial acetic acid, and 20g of ethanol in a 50mL Erlenmeyer flask, and continuously magnetically stir for 12h until completely dissolved; under ice bath conditions, weigh 12.0g of titanium isopropoxide in the aforementioned solution , Raw materials with sealed Erlenmeyer mouth, continuous magnetic stirring for 24h, forming a yellow homogeneous transparent spinning solution. Fill the spinning solution into a syringe with a capacity of 5 mL, and advance at a speed of 2 mL / h. Connect the needle of the syringe to the positive pole of the high-voltage DC power supply, use tin foil as the receiving base, fix it on the roller, and connect it to the negative pole of the high-voltage power supply. Adjust the spinning parameters: the electrospinning voltage is 20kV, the distance between the stainless steel needle and the receiver is adjusted to 25cm, and the drum speed is 1000r / min. Obtained PVP / TiO 2 The fiber diameter is relatively...
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