Your browser doesn't support javascript.
loading
Ternary heterogeneous Z-scheme photocatalyst TiO2/CuInS2/OCN incorporated with carbon quantum dots (CQDs) for enhanced photocatalytic degradation efficiency of reactive yellow 145 dye in water.
Nguyen, Manh B; Lan, Pham Thi; Anh, Nguyen Tuan; Tung, Nguyen Ngoc; Guan, Shaoliang; Ting, Valeska P; Nguyen, T-Thanh-Bao; Doan, Huan V; Tung, Mai Thanh; Lam, Tran Dai.
Afiliação
  • Nguyen MB; Institute of Chemistry (ICH), Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay Hanoi Vietnam.
  • Lan PT; Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Street, Cau Giay Hanoi Vietnam.
  • Anh NT; Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam trandailam@gmail.com.
  • Tung NN; Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam trandailam@gmail.com.
  • Guan S; Center for Research and Technology Transfer, Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet Street, Cau Giay Ha Noi Vietnam.
  • Ting VP; School of Chemistry, Cardiff University Cardiff CF10 3AT UK.
  • Nguyen TT; HarwellXPS, Research Complex at Harwell, Rutherford Appleton Laboratory Didcot OX11 0FA UK.
  • Doan HV; Institute of Physics, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Viet Nam.
  • Tung MT; Research School of Chemistry, The Australian National University AT 2601 Canberra Australia.
  • Lam TD; College of Engineering, Computing and Cybernetics, The Australian National University ACT 2601 Canberra Australia.
RSC Adv ; 13(50): 35339-35348, 2023 Nov 30.
Article em En | MEDLINE | ID: mdl-38058561
ABSTRACT
This study delves into the advanced integration of a ternary heterogeneous Z-scheme photocatalyst, TiO2/CuInS2/OCN (OCN O-g-C3N4), with carbon quantum dot (CQD) to improve the degradation efficiency of reactive yellow 145 (RY145) dye in water. Through a systematic examination, we elucidated the photocatalytic mechanisms and the role of radicals, electrons, and holes in the treatment process. Our findings revealed that this novel catalyst integration significantly boosted RY145 degradation efficiency, achieving 98.2%, which is markedly higher than the efficiencies which could be achieved using TiO2/CuInS2/OCN alone. Moreover, the TiO2/CuInS2/OCN/CQD photocatalyst demonstrated superior rate performance over its components. Comprehensive evaluations, including photoelectrochemical and radical tests, further confirmed the efficiency of the integrated system, adhering to Z-scheme principles. The catalyst showcased remarkable stability, with over 94% reusability after five reaction cycles. These findings pave the way for the potential use of the TiO2/CuInS2/OCN/CQD photocatalyst as an innovative solution for water pollutant treatment via photocatalytic technology.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article