RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        Layer-by-layer Self-assembly Polyurethane/TiO2 NPs Hybrid Film and Its Photocatalytic Efficiency for Decolorization of Methyl Blue

        Yijiong Liu,Juanqin Xue,Yinli Duan,Liang-Sheng Qiang,Jing Ma 한국섬유공학회 2019 Fibers and polymers Vol.20 No.9

        In this study, Layer-by-layer (LbL) self-assembly technique was used to fabricate TiO2 films onto glass slides. Polyurethane (PU) was used as a substrate for the immobilization of TiO2, to increase the adsorption ability of thephotocatalyst. The LBL sequence was (PU/TiO2 NPs)n (n is the number of bilayers). These LbL hybrid films werecharacterized by Raman spectra, which confirmed the formation of TiO2 nanoparticles (TiO2 NPs) in the anatase phase withaverage size around 30 nm. The thickness of the film estimated around 1.1±0.2 μm as determined by scanning electronmicroscopy (SEM). UV-vis spectra confirmed the linear and regular growth of the films with the number of bilayers. Thephotocatalytic property of the films was investigated by the decomposition of methyl blue (MB) under UV-light irradiation. Furthermore, the reusability studies revealed that the fabricated film could be repeatedly used for up to six times withoutaffecting the photocatalytic activity. In addition, the corresponding mechanism of enhanced photocatalytic activity wasproposed on the basis of the investigated results from reactive species scavenging of (PU/TiO2 NPs)10. The active species h+played the most important role in the photocatalytic reaction. This work manifested that the LbL films can be handled moreeasily than TiO2 NPs in suspension form. Therefore, as-synthesized film is a promising candidate in wastewater treatmentapplication.

      • KCI등재

        Facile Synthesis of Thermo-responsive TiO2/PNIPAM Composite with Switchable Photocatalytic Performance

        Yinli Duan,Jing Ma,Jiao Liu,Liang-Sheng Qiang,Juanqin Xue 한국섬유공학회 2020 Fibers and polymers Vol.21 No.4

        In this paper, a facile and efficient method was performed to prepare the thermo-responsive Poly(Nisopropylacrylamide)/TiO2 (TiO2/PNIPAM) with the dispersing of TiO2 nanoparticles into PNIPAM. The structures ofnanoparticles and the grafted polymer were confirmed by X-ray diffraction (XRD), Raman spectra, Fourier transforminfrared spectra (FT-IR) and Dynamic Light Scattering (DLS). The interactions between the two components were studied byX-ray photoelectron spectroscopy (XPS), and the morphology of TiO2/PNIPAM was observed by scanning electronmicroscopy (SEM). The results showed that TiO2 exhibited homogeneous dispersion, without sacrificing the properties ofTiO2. Furthermore, The composite was used to photocatalytic degradation of Methylene blue (MB). The highest MB removalefficiency is 86.3 %. The photocatalytic activities above or below the lower critical solution temperature (LCST) of PNIPAMwas also investigated. The experiment results show that the existence of PNIPAM contributed not only the thermo-responsiveabilities to TiO2, but also the enhanced photocatalytic activities to TiO2. In addition, the corresponding mechanism ofenhanced photocatalytic activity was proposed. The results manifest that the well-designed TiO2/PNIPAM is a promisingcandidate in wastewater treatment application.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼