Functional materials have long been studied for a variety of environmental applications, resource rescue, and many other conceivable applications. The present study reports on the synthesis of bismuth vanadate (BiVO) integrated polyaniline (PANI) using the hydrothermal method. The topology of BiVO decked PANI catalysts was investigated by SEM and TEM. XRD, EDX, FT-IR, and antibacterial testing were used to examine the physicochemical and antibacterial properties of the samples, respectively. Microscopic images revealed that BiVO@PANI are comprised of BiVO hollow cages made up of nanobeads that are uniformly dispersed across PANI tubes. The PL results confirm that the composite has the lowest electron-hole recombination compared to others samples. BiVO@PANI composite photocatalysts demonstrated the maximum degradation efficiency compared to pure BiVO and PANI for rhodamine B dye. The probable antimicrobial and photocatalytic mechanisms of the BiVO@PANI photocatalyst were proposed. The enhanced antibacterial and photocatalytic activity could be attributed to the high surface area and combined impact of PANI and BiVO, which promoted the migration efficiency of photo-generated electron holes. These findings open up ways for the potential use of BiVO@PANI in industries, environmental remediation, pharmaceutical and medical sectors. Nevertheless, biocompatibility for human tissues should be thoroughly examined to lead to future improvements in photocatalytic performance and increase antibacterial efficacy.
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http://dx.doi.org/10.3390/ma16093314 | DOI Listing |
RSC Adv
January 2025
School of Electronic Engineering, Guangxi Key Laboratory of Multidimensional Information Fusion for Intelligent Vehicles, Guangxi University of Science and Technology Liuzhou 545000 China
This study presents a novel approach to enhance photoelectrochemical (PEC) water oxidation by integrating cobalt phthalocyanine (CoPc) with bismuth vanadate (BVO) a direct solvothermal method. The as-prepared BVO@CoPc photoanode demonstrated a photocurrent density of 4.0 mA cm at 1.
View Article and Find Full Text PDFWater Res
December 2024
Department of Civil and Environmental Engineering, Institute of Science Tokyo, 2-12-1, Meguro- Ku, Tokyo, 152-8552, Japan. Electronic address:
Intimately coupled photocatalytic biodegradation (ICPB) has been recently developed as an efficient wastewater treatment technique, particularly for removing persistent organic pollutants. However, photocatalyst/biofilm interaction in terms of photoelectron transfer and its effect on the overall performance of ICPB has not been explored. To investigate these points, interface-engineered composites of bismuth vanadate and reduced graphene oxide with low degree (BiVO/rGO-LC) and high degree of their contact (BiVO/rGO-HC) were fabricated and applied for ICPB.
View Article and Find Full Text PDFMater Horiz
January 2025
Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, 441-8580, Aichi, Japan.
Photoelectrochemical (PEC) water splitting has attracted significant interest as a promising approach for producing clean and sustainable hydrogen fuel. An efficient photoanode is critical for enhancing PEC water splitting. Bismuth vanadate (BiVO) is a widely recognized photoanode for PEC applications due to its visible light absorption, suitable valence band position for water oxidation, and outstanding potential for modifications.
View Article and Find Full Text PDFSmall
December 2024
Department of Fiber Convergence Material Engineering, Dankook University, Gyeonggi-Do, 16890, Republic of Korea.
Approximately 2 billion people still lack access to clean drinking water. Extensive efforts are underway to develop semiconductor photocatalysts for water disinfection and environmental remediation, but conventional liquid-solid diphase interfacial photocatalysts face challenges like low diffusion coefficients and limited solubility of dissolved oxygen. This study introduces freestanding copper oxide fluffy pine needle structures (CO-FPNs) with tunable water pollutants-gas-solid (WGS) triple-phase interfaces that enhance oxygen enrichment and reactive oxygen species (ROS) production.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
December 2024
State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, P. R. China.
Heterogeneous photoelectrocatalysis systems have recently seen significant growth in organic transformations, but are limited by the inherent physicochemical properties of electrode materials. To enhance selectivity in these processes, we propose an innovative advancement in the rational design of photoanodes. Specifically, we incorporated cobalt porphyrin co-catalysts with confined Co sites onto bismuth vanadate films as a photoanode.
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