Low temperature sputtered TiO2 nano sheaths on electrospun PES fibers as high porosity photoactive material

被引：13

作者：

Alberti, A. ^{[1
]}

Bongiorno, C. ^{[1
]}

Pellegrino, G. ^{[1
]}

Sanzaro, S. ^{[1
,6
]}

Smecca, E. ^{[1
]}

Condorelli, G. G. ^{[2
,3
]}

Giuffrida, A. E. ^{[2
,3
]}

Cicala, G. ^{[4
]}

Latteri, A. ^{[4
]}

Ognibene, G. ^{[4
]}

Cassano, A. ^{[5
]}

Figoli, A. ^{[5
]}

Spinella, C. ^{[1
]}

La Magna, A. ^{[1
]}

机构：

[1] CNR IMM Zona Ind, I-95121 Catania, Italy

[2] Univ Catania, I-95125 Catania, Italy

[3] INSTM UdR Catania, I-95125 Catania, Italy

[4] Univ Catania, Dept Engn, I-95125 Catania, Italy

[5] Univ Calabria, Inst Membrane Technol, ITM CNR, I-87030 Cosenza, Italy

[6] Univ Messina, Dipartimento Fis & Sci Terra, I-98166 Messina, Italy

来源：

RSC ADVANCES | 2015年 / 5卷 / 90期

关键词：

METHYLENE-BLUE; NANOPARTICLES; ANATASE; OXIDE; POLYETHERSULFONE; PHOTODEGRADATION; DECOMPOSITION; MEMBRANES; SURFACE; FILMS;

D O I：

10.1039/c5ra13153g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We propose a low temperature approach based on combining an electrospinning methodology and reactive sputtering processes to realise a porous mesh of polyethersulfone (PES) fibers (similar to 700 nm in diameter) wrapped by TiO2 nano-sheaths, active under UV illumination. The mesh has a porosity as high as similar to 91% in volume and was prepared at T <= 160 degrees C. The effectiveness of the TiO2/PES mesh under UV was proved by Methylene Blue (MB) dissociation experiments and related to the TiO2 coverage properties, namely its thickness (similar to 15 nm), its nano-structuring (grains diameter 8-10 nm) and lattice structure (anatase) that improve the photo-activity action. The combination of electro-spinning plus sputtering processes lays the basis for high porosity and low cost, high throughput, high yield and flexible purifying filter technologies.

引用

页码：73444 / 73450

页数：7

共 33 条

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