Industrial & Engineering Chemistry Research, Год журнала: 2024, Номер unknown

Опубликована: Апрель 16, 2024

Photocatalysis for environmental cleanup applications has seen an enormous increase in interest recently. This study aimed to examine the situ photoactivity of photocatalyst BiOI/g-C3N4/Bi2WO6/Biochar photocatalytic decomposition target pollutant methylene blue (MB). During photocatalysis, biochar is utilized as a support material by using light harvesting and electron-conductive qualities hinder quick recombination e–/h+ pairs. The composite showed improved stability after adding biochar. For MB degradation, attained rate constant K was found be 0.04102 > 0.02446 0.01818 0.0119 0.00933 0.00705 min–1 g-C3N4/Bi2WO6/BIOI/Biochar g-C3N4/Bi2WO6/BIOI g-C3N4/Bi2WO6 BiOI Bi2WO6 g-C3N4, respectively. degradation efficiencies photocatalysts were 97.56% within 70 min. Scavenger electron spin resonance (ESR) studies further demonstrated that h+, •O2–, •OH are significant reactive species aid photodegradation dyes. Additionally, structural analyses DFT calculations examination degraded products GC-MS (gas chromatography–mass spectrometry) allowed more insightful deduction pathways. Results BiOI/g-C3N4/Bi2WO6 significantly with addition quaternary harvesting, absorption capacity, porosity, pore structure photocatalyst. work suggests possible novel technique large-scale degradation. It also straightforward inexpensive strategy creating stable semiconductor-based system.

Язык: Английский