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Chlorophyll-regulated BiOBr (110) facets for enhanced photocatalytic coupling of secondary amines and methamphetamine
Shaojia Gu1, Yi Zhao1, Yang Yu1
1School of Chemical Science and Engineering, Yunnan Province Engineering Research Center of Photocatalytic Treatment of Industrial Wastewater, Yunnan University, Kunming 650091, China.
Abstract:
Methamphetamine (MAP), a potent stimulant, poses a serious threat to human health, making the development of efficient conversion technologies essential. This study used Chlorophyll (Chl) templates and surface stabilizers to synthesize BiOBr nanoflowers with exposed (110) facets, which were effectively applied in the photocatalytic oxidation coupling of N-methylbenzylamine (N-BA). Additionally, the oxidation coupling of MAP was successfully carried out through a bimolecular reaction with N-BA. Characterization results revealed that Chl regulated the increase in the spacing of BiOBr (001) facets, leading to the formation of highly exposed BiOBr (110) facets, which activated singlet oxygen (1O2) to attack N-BA, thereby completing the oxidation coupling reaction. Furthermore, Toxicity assessments of the imine products showed no harm to human development, successfully detoxifying MAP. This study not only offers a novel approach for the upgrading of amphetamine-like substances but also provides significant theoretical support and practical insights for the efficient recycling of resources.
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