Bismuth molybdate tungstate/titanium dioxide/reduced graphene oxide hybrid with multistage heterogeneous structure for Norfloxacin and Rhodamine B removal through adsorption and photocatalytic degradation synergy

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2025-01-13 DOI:10.1016/j.materresbull.2025.113314

Mengmeng Zhang, Zhaojun He, Honghe Ren, Yi Huang

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Abstract

A hybrid photocatalyst consisting of bismuth molybdate tungstate/titanium dioxide heterostructure anchored on rGO through a solvothermal method. The construction of heterostructure among bismuth molybdate tungstate, TiO₂ and rGO contributes to the increased light acquisition, reduced band gap energy, improved photocurrent responses and decreased resistance. The resulting bismuth molybdate tungstate/titanium dioxide/reduced graphene oxide (BWMTG) showed 100 % elimination efficiency of norfloxacin and rhodamine B after 180 and 60 min illumination with visible light, respectively, and the corresponding photocatalytic rate constants were 6.1 and 16.2 times of those of bismuth molybdate tungstate, respectively. After five times of recycling, the elimination efficiency of norfloxacin and rhodamine B still remained 89.5 % and 93.9 %, respectively. Furthermore, the adsorption-photocatalyatic synergistic mechanism of BWMTG was proposed. The improved adsorption-photocatalyatic performance can be ascribed to the increased active sites, promoted separation and migration of photo-induced carriers from the synergistic effect of bismuth molybdate tungstate/titanium dioxide loaded on rGO sheets.

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.

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