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

        Using waste silver metal in synthesis of Z-scheme Ag@WO3-CeO2 heterojunction to increase photodegradation and electrochemical performances

        Reza Ghamarpoor,Akram Fallah,Masoud Jamshidi,Somayeh Salehfekr 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.128 No.-

        Design of a Z-scheme heterojunction structure is eco-friendly due to its multi-nanocatalyst performanceslike wastewater treatment, antibacterial and electrochemical activity. Herein, Ag was extracted fromwaste batteries in a nitric acid leaching manner. Also, WO3 nanorods and WO3-CeO2 were synthesizedby the surfactant-assisted hydrothermal acidic and sol–gel methods, respectively. Silver nanoparticleswere doped by wet impregnation method to prepare ternary (Ag@WO3-CeO2) and binary (Ag@WO3and Ag@CeO2) heterojunctions. The band gap of the prepared Ag@WO3-CeO2 was remarkably diminishedin comparison with the rest of the sample (from 2.73 to 2.59 eV). The Langmuir-Hinslewood modelshowed that ternary systems can degrade methylene blue twice as much as WO3-CeO2 and seven timesmore than single-component systems. This was due to the presence of silver as a mediator for the transferof photogenerated electrons between two semiconductors. Also, methylene blue was degraded by morethan 90.8% efficiency. Electrochemical impedance spectroscopy (EIS) analysis confirmed that the chargetransfer resistance of Ag@WO3-CeO2 was decreased by more than 50%. The results of bactericidal activenessconfirmed elevated inhibition capability of Ag@WO3-CeO2 towards E.coli with 99% degradation. Xrayfluorescence (XRF) results confirmed that 98% of silver can be re-extracted after 5 photocatalytic useswhich is a material with green technology.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼