Boosted photocatalytic efficiency of Ag/β-Ag2WO4/BiFeO3 for the selective actuation of C(OH)–H bond

IF 5.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Inorganic Chemistry Communications Pub Date : 2025-02-14 DOI:10.1016/j.inoche.2025.114126

Arefeh Ahadi , Mahdieh Ghobadifard , Sajjad Mohebbi

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Abstract

A novel Ag/β-Ag₂WO₄/BiFeO₃ (AWO/BFO) photocatalyst was prepared by a precipitation-photoreduction method. FE-SEM, XRD, EDX, XPS, FT-IR, HRTEM, DRS, PL, and photocurrent techniques were used to investigate the morphology, optical properties, and nanocomposite structure. The size range of nanoparticles was determined to be 4–12 nm. The photo performance of AWO and AWO/BFO photocatalysts was scrutinized toward the selective actuation of the C(OH)–H bond under a visible lamp source. Prepared nanocomposite exhibited impressive visible-light catalytic efficiency (around 80 % conversion) compared to pure AWO and BFO. The high efficiency of AWO/BFO should be related to the charge pairs separation of AWO due to the presence of BFO perovskite, the high adsorption capacity of BFO, and the strong surface plasmon resonance (SPR) of Ag NPs. Additionally, the nanocomposite was utilized for six runs without considerably decreasing the reaction efficiency.

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提高了Ag/β-Ag2WO4/BiFeO3选择性驱动C(OH) -H键的光催化效率

采用沉淀-光还原法制备了新型Ag/β-Ag2WO4/BiFeO3 （AWO/BFO）光催化剂。利用FE-SEM、XRD、EDX、XPS、FT-IR、HRTEM、DRS、PL和光电流等技术研究了纳米复合材料的形貌、光学性能和纳米复合材料的结构。确定纳米颗粒的尺寸范围为4 ~ 12 nm。考察了AWO光催化剂和AWO/BFO光催化剂在可见光光源下的C(OH) -H键选择性激活的光性能。与纯AWO和BFO相比，制备的纳米复合材料表现出令人印象深刻的可见光催化效率（转化率约为80%）。AWO/BFO的高效应与BFO钙钛矿的存在使AWO的电荷对分离、BFO的高吸附容量以及Ag NPs的强表面等离子体共振（SPR）有关。此外，纳米复合材料在六次运行中没有显著降低反应效率。

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.