TY - JOUR
T1 - Carbon-doped flower-like Bi2WO6 decorated carbon nanosphere nanocomposites with enhanced visible light photocatalytic degradation of tetracycline
AU - Jiang, Xiaona
AU - Chen, Shuai
AU - Zhang, Xinrui
AU - Qu, Lanni
AU - Qi, Houjuan
AU - Wang, Bin
AU - Xu, Ben Bin
AU - Huang, Zhanhua
N1 - Funding information: The National Natural Science Foundation of China (No. 32071713); the Outstanding Youth Foundation Project of Heilongjiang Province (No. JQ2019C001); the Northeast Forestry University College Student Innovation Training Program Funding Project (No. CL202210225471).
PY - 2023/2/1
Y1 - 2023/2/1
N2 - In search of a recyclable catalyst with synergistic adsorption and photocatalysis, unique composite photocatalysts of flower-like bismuth tungstate (Bi2WO6) and carbon nanospheres (CSs) were composited using a hydrothermal synthesis method (named CSs-Bi2WO6). Notably, based on the high visible light utilization and a reasonable band gap (2.53 eV), CSs-Bi2WO6 have good photocatalytic properties. For example, the composite with an optimized ratio (2% CSs-Bi2WO6) showed good adsorption and photocatalytic performance. Under simulated natural light conditions, the degradation rate of tetracycline (TC) by 2% CSs-Bi2WO6 was 84.6% in 60 min, which is nearly 25% higher than pure Bi2WO6. After five cycles, the observed barely decreased TC degradation rate of 2% CSs-Bi2WO6 confirmed the high cyclability and reproducibility of the photocatalyst. The total organic carbon estimation of the post-degradation reaction medium corresponded to 68.2% mineralization. Furthermore, we determined the photocatalytic reaction path by LC–MS, which confirmed that the composite catalyst could effectively degrade TC molecules into small molecules. It can be concluded that the catalyst has a broad application prospect in the field of wastewater treatment.
AB - In search of a recyclable catalyst with synergistic adsorption and photocatalysis, unique composite photocatalysts of flower-like bismuth tungstate (Bi2WO6) and carbon nanospheres (CSs) were composited using a hydrothermal synthesis method (named CSs-Bi2WO6). Notably, based on the high visible light utilization and a reasonable band gap (2.53 eV), CSs-Bi2WO6 have good photocatalytic properties. For example, the composite with an optimized ratio (2% CSs-Bi2WO6) showed good adsorption and photocatalytic performance. Under simulated natural light conditions, the degradation rate of tetracycline (TC) by 2% CSs-Bi2WO6 was 84.6% in 60 min, which is nearly 25% higher than pure Bi2WO6. After five cycles, the observed barely decreased TC degradation rate of 2% CSs-Bi2WO6 confirmed the high cyclability and reproducibility of the photocatalyst. The total organic carbon estimation of the post-degradation reaction medium corresponded to 68.2% mineralization. Furthermore, we determined the photocatalytic reaction path by LC–MS, which confirmed that the composite catalyst could effectively degrade TC molecules into small molecules. It can be concluded that the catalyst has a broad application prospect in the field of wastewater treatment.
KW - Carbon nanospheres
KW - Degradation pathways
KW - Flower-like Bi WO
KW - Synergistic effect
KW - Wastewater treatment
UR - http://www.scopus.com/inward/record.url?scp=85144114219&partnerID=8YFLogxK
U2 - 10.1007/s42114-022-00590-4
DO - 10.1007/s42114-022-00590-4
M3 - Article
SN - 2522-0128
VL - 6
JO - Advanced Composites and Hybrid Materials
JF - Advanced Composites and Hybrid Materials
IS - 1
M1 - 9
ER -