Boron-doped carbon nanotubes (B-MWNTs) have emerged as a promising metal-free catalyst for peroxomonosulfate (PMS) activation in advanced oxidation processes. This study systematically investigates the catalytic performance and underlying mechanisms of B-doped multi-walled carbon nanotubes in degrading organic pollutants, particularly phenol. The results demonstrate that B-MWNTs achieve over 95% phenol removal within one hour at pH 7, with total organic carbon (TOC) reduction reaching 69.4%, indicating effective mineralization. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance (EPR) analyses confirm that boron doping preserves the tubular structure of carbon nanotubes while increasing defect sites from 1.05 to 1.23 in the ID/IG ratio. New active sites such as C₃B, CBO₂, and CBO₃ are identified through XPS, suggesting enhanced electronic interactions.FBLN5 Antibody Cancer EPR studies using DMPO and TEMP spin traps reveal the generation of hydroxyl radicals (OH•), sulfate radicals (SO₄•⁻), superoxide anions (O₂•⁻), and singlet oxygen (¹O₂). Notably, in situ Raman spectroscopy detects the formation of a transient species, B-MWNT-PMS*, providing direct evidence of a non-radical pathway involving electron transfer. The system exhibits broad pH adaptability, functioning efficiently across pH 3–10. Furthermore, the catalytic system effectively degrades diverse pollutants including methylene blue, bisphenol S, and diuron, highlighting its potential for real-world wastewater treatment applications. Multi-walled carbon nanotubes outperform single- and double-walled counterparts due to optimal surface accessibility and electronic properties.IRF2BP1 Antibody supplier Boric acid proves to be the most effective and cost-efficient precursor, while excessive precursor loading or high annealing temperatures (>800 °C) reduce catalytic activity by disrupting the sp² carbon network.PMID:35229919 These findings underscore the importance of controlled doping and thermal treatment in designing high-performance carbon-based catalysts for sustainable environmental remediation.MedChemExpress (MCE) offers a wide range of high-quality research chemicals and biochemicals (novel life-science reagents, reference compounds and natural compounds) for scientific use. We have professionally experienced and friendly staff to meet your needs. We are a competent and trustworthy partner for your research and scientific projects.Related websites: https://www.medchemexpress.com
