Spatial charge separation on the (110)/(102) facets of cocatalyst-free ZnIn2S4 for the selective conversion of 5-hydroxymethylfurfural to 2,5-diformylfuran

التفاصيل البيبلوغرافية
العنوان: Spatial charge separation on the (110)/(102) facets of cocatalyst-free ZnIn2S4 for the selective conversion of 5-hydroxymethylfurfural to 2,5-diformylfuran
المؤلفون: Heng Zhao, Dhwanil Trivedi, Morteza Roostaeinia, Xue Yong, Jun Chen, Pawan Kumar, Jing Liu, Bao-Lian Su, Steve Larter, Md Golam Kibria, Jinguang Hu
المصدر: Green Chemistry. 25:692-699
بيانات النشر: Royal Society of Chemistry (RSC), 2023.
سنة النشر: 2023
مصطلحات موضوعية: Environmental Chemistry, Pollution
الوصف: Photorefining of biomass and its derivatives to value-added chemicals is an alternative solution to address the global energy shortage and environmental issues. Herein, efficient and selective oxidation of 5-hydroxymethylfurfural (HMF, 91.1% conversion) to 2,5-diformylfuran (DFF, 99.4% selectivity) is demonstrated by visible light-driven photocatalysis over cocatalyst-free ZnIn2S4 nanosheets with crystal facet engineering. The spatial accumulation of photogenerated electrons and holes on the (110) and (102) crystal facets triggers a two-electron oxygen reduction reaction (2e-ORR) for H2O2 generation and HMF oxidation into DFF, respectively. The severe attenuation of photostability is caused by the irreversible photocorrosion of Zn-S with the formation of Zn-O chemical bonds by the formation of ˙OH from the in situ decomposition of H2O2. Spontaneous substitution of oxygen with sulfur has been proven to efficiently improve the photostability of ZnIn2S4. This present work provides insights into improving the durability of ZnIn2S4 and sheds new light on biomass valorization via photorefinery.
تدمد: 1463-9270
1463-9262
DOI: 10.1039/d2gc04362a
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c5876f310b468439326f62f02e898f4
https://doi.org/10.1039/d2gc04362a
Rights: CLOSED
رقم الانضمام: edsair.doi.dedup.....2c5876f310b468439326f62f02e898f4
قاعدة البيانات: OpenAIRE
الوصف
تدمد:14639270
14639262
DOI:10.1039/d2gc04362a