Photocatalytic selective hydroxylation of phenol to dihydroxybenzene by BiOI/TiO2 p-n heterojunction photocatalysts for enhanced photocatalytic activity

Li, Bin; Chen, Xingwei; Zhang, Tianyong; Jiang, Shuang; Zhang, Guanghui; Wu, Wubin; Ma, Xiaoyuan

doi:10.1016/j.apsusc.2017.12.220

Cited by 81 publications

(17 citation statements)

References 36 publications

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“…As depicted in Figure 1a, when the amount of bacitracin was 0.5 mmol, the XRD peaks of BBOI-1 completely coincided with Bi 5 O 7 I (JCPDS 40-0548), indicating that the as-prepared product BBOI-1 was pure Bi 5 O 7 I. When the amount of template was 1 mmol, the XRD characteristic peaks at 23.94°, 28.94°, 32.33°, and 45.58°were in agreement with the (011), (012), (110), and (020) facets of BiOI 43,44 (JCPDS 73-2062), respectively. In addition, the diffraction peaks located at 27.83°, 30.81°, 46.56°, 53.17°, and 55.92°were assigned to the (312), (004), (604), (316), and (912) planes of Bi 5 O 7 I, 45,46 respectively.…”

Section: Resultsmentioning

confidence: 65%

Bacitracin-Controlled BiOI/Bi₅O₇I Nanosheet Assembly and S-Scheme Heterojunction Formation for Enhanced Photocatalytic Performances

Wang

Yang

et al. 2022

ACS Appl. Nano Mater.

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Coupling heterojunction is an effective and feasible approach to suppressing the electron–hole recombination of a photocatalyst. However, the heterojunction performance is limited by poor interface contact between two semiconductors. Therefore, an in situ partial conversion procedure was proposed to fabricate the flower-spherical BiOI/Bi5O7I (BBOI) heterojunction using bacitracin as a template. The introduction of bacitracin can regulate the assembly of nanosheets into a flower-spherical structure, which caused the BBOI photocatalysts to have larger specific surface areas than BiOI or Bi5O7I. In particular, the dosage of bacitracin can control the thermal conversion of BiOI to Bi5O7I. The in situ partial conversion of BiOI caused the formation of an intimate S-scheme heterojunction interface between BiOI and Bi5O7I, which efficiently inhibited the combination of photogenerated carriers. Upon visible-light irradiation, BBOI-3 exhibited the highest catalytic ability for the simultaneous reduction of Cr(VI) (100%) and oxidative degradation of tetracycline hydrochloride (TH) (80.0%). This work provides an opinion to construct the high-performance heterojunction photocatalysts to environmental remediation.

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Section: Resultsmentioning

confidence: 65%

Bacitracin-Controlled BiOI/Bi₅O₇I Nanosheet Assembly and S-Scheme Heterojunction Formation for Enhanced Photocatalytic Performances

Wang

Yang

et al. 2022

ACS Appl. Nano Mater.

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“…In order to explore the reaction mechanism for phenol hydroxylation with Fe(III)/MDPC‐1000, a radical trapping experiment was carried to investigate the reactive radical species involved in the phenol hydroxylation. Thus, We use isopropanol as the scavenger of ⋅OH for investigating the effect of ⋅OH in the hydroxylation of phenol . The phenol conversions in the normal reaction condition and in the presence of isopropanol are shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

Two Synthesis Methods for Fe(III)@MOF‐5‐derived Porous Carbon Composites for Enhanced Phenol Hydroxylation

Xiang

et al. 2019

ChemistrySelect

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MOF‐5‐derived porous carbon (MDPC) materials, MDPC‐600 and MDPC‐1000, were prepared by pyrolysis at 600 °C in nitrogen atmosphere prior to acid treatment and at 1000 °C in nitrogen atmosphere, respectively. The samples were characterized by X‐ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscopy (SEM), X–MaxN energy spectrum, and transmission electron microscopy (TEM). The test results of MDPC‐1000 and MDPC‐600 show that both are microporous amorphous carbon with the 2.7 nm diameter pore size, indicating that the micropore of MOF‐5 is well preserved during pyrolysis. MDPC‐1000 and MDPC‐600 have specific surface areas of 1570.9 m2/g and 1029.5 m2/g, respectively. MDPC‐1000 and MDPC‐600 were loaded with Fe ions to prepare Fe(III)/MDPC composite materials, which were used as catalysts for phenol hydroxylation. The results show that Fe(III)/MDPC‐1000 has higher catalytic effect than Fe(III)/MDPC‐600. During one hour phenol hydroxylation at 80 °C with 3 wt.% Fe concentration and a mass ratio of catalyst to phenol of 0.053, Fe(III)/MDPC‐1000 provides maximum phenol conversion, dihydroxybenzene yield, and dihydroxybenzene selectivity of 61.4%, 54.3%, and 88.4%, respectively.

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“…Here, cation source: Bi(NO 3 ) 3 .5H 2 O and anion source: KI and deionized water were used for different SILAR cycle number and after completing the desire cycle number, all the samples have been annealed for 10 min at 100°C. The detailed SILAR procedure and the fundamental material properties of BiOI, such as band gap are reported in our previous papers [10,11,27,28,37]. Here, the investigation of absorber layer morphology has been conducted via a scanning electron microscopy (SEM, JSM-6510).…”

Section: Experimental Procedures 21 Preparation Of Bioi Etl and Htlmentioning

confidence: 99%

“…The research world has put the environment into the highest priority and every day trying to develop new, different, cost effective and environment-friendly photovoltaic cells. Concerning the time demand, the researcher is focusing on developing various materials and flexible substrate-based photovoltaic cell [1][2][3][4][5][6][7][8][9][10][11][12][13]. Once the structure of BiOX (Cl, Br, I) has been reported by Bannister et al invented in 1935 since then, BiOI has drawn the enormous attention among the researcher for energy materials [10,14,15].…”

Section: Introductionmentioning

confidence: 99%

All-solution-processed environment-friendly solid-state BiOI photovoltaic cell with high-short-circuit current by successive ionic layer adsorption and reaction (SILAR)

Matiur

Kato

Soga

2021

J Mater Sci: Mater Electron

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This research demonstrates a complete solution prepared environment-friendly high-performance solid-state BiOI photovoltaic cell with high-short-circuit current for the first time. All the layers have been prepared at room temperature in the atmosphere without using the vacuum process. The photovoltaic properties are improved with employing both electron transport layer (ETL) and hole transport layer (HTL) and with increasing the cycle number of the SILAR process up to 30 cycles where the maximum short-circuit current density, J SC = 7.6 mA/cm 2 and the open-circuit voltage, V OC = 0.63 V, respectively. The ETL and HTL effects on the photovoltaic properties are discussed together with absorption spectrum and external quantum efficiency.

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Photocatalytic selective hydroxylation of phenol to dihydroxybenzene by BiOI/TiO2 p-n heterojunction photocatalysts for enhanced photocatalytic activity

Cited by 81 publications

References 36 publications

Bacitracin-Controlled BiOI/Bi₅O₇I Nanosheet Assembly and S-Scheme Heterojunction Formation for Enhanced Photocatalytic Performances

Bacitracin-Controlled BiOI/Bi₅O₇I Nanosheet Assembly and S-Scheme Heterojunction Formation for Enhanced Photocatalytic Performances

Two Synthesis Methods for Fe(III)@MOF‐5‐derived Porous Carbon Composites for Enhanced Phenol Hydroxylation

All-solution-processed environment-friendly solid-state BiOI photovoltaic cell with high-short-circuit current by successive ionic layer adsorption and reaction (SILAR)

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Photocatalytic selective hydroxylation of phenol to dihydroxybenzene by BiOI/TiO2 p-n heterojunction photocatalysts for enhanced photocatalytic activity

Cited by 81 publications

References 36 publications

Bacitracin-Controlled BiOI/Bi5O7I Nanosheet Assembly and S-Scheme Heterojunction Formation for Enhanced Photocatalytic Performances

Bacitracin-Controlled BiOI/Bi5O7I Nanosheet Assembly and S-Scheme Heterojunction Formation for Enhanced Photocatalytic Performances

Two Synthesis Methods for Fe(III)@MOF‐5‐derived Porous Carbon Composites for Enhanced Phenol Hydroxylation

All-solution-processed environment-friendly solid-state BiOI photovoltaic cell with high-short-circuit current by successive ionic layer adsorption and reaction (SILAR)

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Bacitracin-Controlled BiOI/Bi₅O₇I Nanosheet Assembly and S-Scheme Heterojunction Formation for Enhanced Photocatalytic Performances

Bacitracin-Controlled BiOI/Bi₅O₇I Nanosheet Assembly and S-Scheme Heterojunction Formation for Enhanced Photocatalytic Performances