Fabrication of novel g-C3N4based MoS2and Bi2O3nanorod embedded ternary nanocomposites for superior photocatalytic performance and destruction of bacteria

Highly efficient g-C(3)N(4)based MoS2/Bi(2)O(3)nanorod embedded novel nanocomposites (g-C3N4/MoS2/Bi2O3) were effectively fabricated by a hydrothermal-calcination method. The chemical composition, deep morphology, structure, optical absorption, and photocatalytic properties of the as-obtained g-C3N4/MoS2/Bi(2)O(3)photocatalysts were considered and discussed. The HR-TEM results obviously suggested that the MoS2/Bi(2)O(3)nanorods were well dispersed on the g-C(3)N(4)surface without clear aggregation. The superior photocatalytic efficacy of the g-C3N4/MoS2/Bi(2)O(3)nanocomposites under visible-light irradiation has been evaluated by methylene blue (MB) dye photodegradation. After 90 min of visible-light exposure, close to 98.5% decolourization was attained and the removal rate of MB dye of the g-C3N4/MoS2/Bi(2)O(3)photocatalyst was 1.4 and 3.6 fold larger than that of the as-obtained g-C(3)N(4)and g-C3N4-MoS(2)photocatalysts, respectively. The greater photocatalytic action of g-C3N4/MoS2/Bi(2)O(3)nanocomposites might be inhibited by recombination and increased migration/separation of photo-excited charges (e(-)/h(+)), smaller bandgap, and their consistent absorption of visible-light as well. In addition, the as-prepared nanocomposites exhibited better antibacterial activity against bothE. coliandS. aureusbacteria. Also, these novel g-C3N4/MoS2/Bi(2)O(3)nanocomposites have great potential for visible-light induced destruction of organic dyes in industrial wastewater.