Metal–Organic-Framework-Derived Bromine and Nitrogen Dual-Doped Porous Carbon for CO2 Photocycloaddition Reaction

• DOI: 10.1021/acs.inorgchem.3c04308
• Publication Date: 2024-02-16T20:05:40Z
• Authors: Tingting Wang; Fengfeng Chen; Lingjing Jiang; Jinze Li; Kai Chen; Junkuo Gao
• Keywords: Carbon fibers

The cycloaddition of CO2 with epoxides driven by light irradiation is an intriguing approach to preparing cyclic carbonates. However, it remains a great challenge achieve high photocatalytic efficiency in the absence cocatalyst. Herein, we explored metal–organic-framework (MOF)-templated pyrolysis strategy prepare uniform bromine ions/nitrogen-codoped carbon materials (Br-CN) as low-cost photocatalysts for cycloaddition. optimal catalyst Br-CN-1–550 can be used photocatalyst catalyze cycloaddition, remarkably reducing energy consumption. As result its benefits photothermal and rich nucleophilic sites (Br ions), BN-CN-1–550 affords 9 times higher yield 4-(chloromethyl)-1,3-dioxolan-2-one than that ZIF-8-derived CN under cocatalyst-free conditions (300 mW·cm–2 full-spectrum irradiation, 10 h). This provides cost-effective way obtain carbonate conditions.