Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (02): 176-182.doi: 10.13475/j.fzxb.20211007907

• Dyeing and Finshing & Chemicals • Previous Articles     Next Articles

Preparation and UV shielding of rutile nano-TiO2 by induction of nanocrystal-cellulose at room temperature

JIN Yaofeng1,2,3, LIU Leigen1,2, WANG Wei1,2, LU Xin1,2,3()   

  1. 1. College of Textile and Garment Engineering, Changshu Institute of Technology, Changshu, Jiangsu 215500, China
    2. Jiangsu Province Key Laboratory of Advanced Functional Materials, Changshu, Jiangsu 215500, China
    3. College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215021, China
  • Received:2021-10-29 Revised:2021-12-07 Online:2022-02-15 Published:2022-03-15
  • Contact: LU Xin E-mail:luxin66cn@163.com

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Abstract:

In order to prepare nanofiber with improved ultraviolet(UV)protection performance, rutile nano-TiO2 for UV shielding was prepared by using TiCl4 as titanium source and nanocrystal-cellulose (NCC) as template at room temperature, and the effects of reaction temperature, reaction time and the dosage of titanium tetrachloride on the mass fraction of rutile nano-TiO2 were studied. Orthogonal experiments were adopted to optimize the preparation conditions of nano-TiO2, where reaction temperature was 25 ℃, reaction time was 1 h and dosage of TiCl4 was 3 mL, and then the microstructure and UV resistance of the nano-TiO2 were characterized. The results showed that the pure rutile nano-TiO2 was well dispersed and has a spiny spherical shape with a particle size of 100-250 nm. The cotton fabric treated with nano-TiO2 offers UV resistance with UPF>40, which is regarded as excellent. The rutile nano-titanium dioxide prepared by this method has good UV shielding performance, indicating that rutile nano-TiO2 prepared by this method has good UV shielding property.

Key words: nanocrystal cellulose, TiCl4, nano-TiO2, rutile, UV resistance

CLC Number: 

  • TS195.5

Fig.1

XRD patterns of samples at different reaction temperatures"

Tab.1

Contents of rutile nano-TiO2 in samples at different reaction temperatures"

试验编号 反应温度/℃ 金红石型TiO2质量分数/%
1-1 25 100
1-2 40 73.97
1-3 50 57.47
1-4 60 54.39
1-5 70 0

Fig.2

XRD patterns of samples under different reaction time"

Tab.2

Contents of rutile nano-TiO2 in samples with different reaction time"

试验编号 反应时间/h 金红石型TiO2质量分数/%
2-1 0.5 0
2-2 1 43.57
2-3 4 59.72
2-4 7 100
2-5 24 56.06

Fig.3

XRD patterns of samples with different amount of TiCl4"

Tab.3

Contents of rutile nano-TiO2 in samples with different TiCl4 dosage"

试验编号 TiCl4用量/mL 金红石型TiO2含量/%
3-1 0.5 43.35
3-2 1 55.21
3-3 2 66.90
3-4 3 100
3-5 4 100

Tab.4

Orthogonal experiment and results"

试验
编号		 A
反应温
度/℃		 B
反应时
间/h		 C
TiCl4用
量/mL		 金红石型
的含量/%
1 25 1 1 73.31
2 25 4 2 100
3 25 7 3 100
4 50 1 2 100
5 50 4 3 100
6 50 7 1 56.74
7 70 1 3 65.56
8 70 4 1 0
9 70 7 2 48.35
K1j 273.31 238.87 130.05
K2j 256.74 200 248.35
K3j 113.91 205.09 265.56
-K1j 91.10 79.62 43.35
-K2j 85.58 66.67 82.78
-K3j 37.97 68.36 88.52
主次顺序 A>C>B
最优水平 A1 B1 C3
最优组合 A1B1C3

Fig.4

XRD patterns of rutile nano-TiO2 under optimal process conditions and different reaction conditions"

Fig.5

SEM and TEM pictures of samples. (a) SEM; (b) Enlarge image of (a); (c) TEM; (d) Enlarge imoge of (c)"

Fig.6

Particle size distribution of samples"

Fig.7

TG and DTG curves of rutile nano-TiO2"

Fig.8

XPS spectra of rutile nano-TiO2. (a) XPS spectrum; (b) C 1s spectrogram; (c) O 1s spectrogram; (d) Ti 2p spectrogram"

Tab.5

UV shielding properties of rutile nano-TiO2"

样品 紫外线透过率/% UPF
值
T(UVA) T(UVB)
平纹机织棉织物 15.81 9.80 9.19
纬平针棉织物 18.34 10.24 8.34
处理后平纹机织棉织物 3.28 1.61 56.53
处理后纬平针棉织物 4.40 1.82 49.78
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