20.500.12556/DiRROS-21380 Manganese dioxide-coated biocarbon for integrated adsorption-photocatalytic degradation of formaldehyde in indoor conditions Formaldehyde is a common indoor air pollutant with hazardous effects on human health. This study investigated the efficiency of biocarbon (BC) functionalized with variable contents of MnO2 for formaldehyde removal in ambient conditions via integrated adsorption-photocatalytic degradation technology. The sample with the highest formaldehyde removal potential was used to prepare a functional coating made of acrylic binder mixed with 20 wt% of the particles and applied on beech (Fagus sylvatica L) substrate. SEM images showed that MnO2 was deposited around and inside the pores of the BC. EDX spectra indicated the presence of Mn peaks and increased content of oxygen in the doped BC compared to pure BC, which indicated the successful formation of MnO2. Raman spectra revealed that the disorder in the BC's structure increased with increasing MnO2 loadings. FTIR spectra of BC–MnO2 samples displayed additional peaks compared to the BC spectrum, which were attributed to MnO vibrations. Moreover, the deposition of increased MnO2 loadings decreased the porosity of the BC due to pores blockage. The BC sample containing 8 % Mn exhibited the highest formaldehyde removal efficiency in 8 h, which was 91 %. A synergetic effect between BC and MnO2 was observed. The formaldehyde removal efficiency and capacity of the coating reached 43 % and 6.1 mg/m2, respectively, suggesting that the developed coating can be potentially used to improve air quality in the built environment. biocarbon manganese dioxide catalytic degradation functional coating built environment bioogljik manganov dioksid katalitska razgradnja funkcionalni premaz grajeno okolje true false true Elsevier Angleški jezik Slovenski jezik © 2024 The Authors. Published by Elsevier Ltd. Neznano 2025-01-30 08:24:48 2025-01-30 08:37:11 2025-01-31 03:37:12 0000-00-00 00:00:00 2024 0 0 str. 1-14 iss. 9, [article no.] e29993 Vol. 10 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2024-05-15 577 2405-8440 10.1016/j.heliyon.2024.e29993 196875523 https://doi.org/10.1016/j.heliyon.2024.e29993 1 4b94480b-dedb-11ef-ba3f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30451 RAZ_Zouari_Mariem_2024.pdf RAZ_Zouari_Mariem_2024.pdf 1 DAD2264808D752FB21226F7085E21142 9e2b63aff3a855ad7e6650ad2b65bc286f274cdc5aad18e1ae92e2dba925abab e91af216-dedc-11ef-ba3f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30452 RAZ_Zouari_Mariem_2024.docx RAZ_Zouari_Mariem_2024.docx 1 4B6C7D540EB8C0AC171F3A27147CB2D5 5a8690383051087fd253145d111ef3180c6e222f8385e45253e7bb2ca7f7933e f6e122db-dedc-11ef-ba3f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=30453 Zavod za gradbeništvo Slovenije 0 0 0