Novel axial substituted subphthalocyanine and its TiO2 photocatalyst for degradation of organic water pollutant under visible light

Wang, Bing; Cui, Guoyi; Zhang, Bingbing; Li, Zhuo; Ma, Hua; Wang, Wei; Zhang, Fenyan; Ma, Xiaoxun

doi:10.1016/j.optmat.2020.110202

Cited by 26 publications

(2 citation statements)

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“…Cyanine compounds are distinguished by their broad absorbance in the UV-vis region, molar extinction coefficient, and Stokes shift. 39–42 Hence, cyanine dye is highly attractive for use in the field of H 2 energy. The design of photocatalysts is not the only factor affecting the H 2 evolution process, the structure of the photoreactor also has a significant impact on the production rate.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic hydrogen evolution over cyanine-sensitized Ag/TiO₂

Almazroai

El‐Mekawy

Musa³

et al. 2022

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Photocatalytic hydrogen evolution over cyanine-sensitized Ag/TiO₂

Almazroai

El‐Mekawy

Musa³

et al. 2022

RSC Adv.

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“…[21][22][23][24] However, the photocatalytic technology based on titanium dioxide semiconductor also has problems such as low quantum decomposition, low light utilization, and difficulty in recycling. [25][26][27] In order to overcome these defects, various strategies have been employed to enhance the photoresponse activity of TiO 2 , including metal or nonmetal doping, [28][29][30][31][32] morphology controlling, [33,34] ion implantation, [35,36] photosensitization, [37,38] formation of semiconductor heterojunction, [39] and surface hybridization. [40] .…”

Section: Introductionmentioning

confidence: 99%

Novel axial substituted subphthalocyanine sensitized titanium dioxide H₁₂SubPcB‐OPh₂OH/TiO₂ photocatalyst: Synthesis, density functional theory calculation, and photocatalytic properties

Yang

Zhang

et al. 2021

Applied Organom Chemis

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Utilizing subphthalocyanine (SubPc) and 4,4 0 -dihydroxybiphenyl (C 12 H 10 O 2 ) as the raw materials, an innovative axial substituted SubPc H 12 SubPcB-OPh 2 OH was synthesized by solvothermal method. The density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations were employed to further study the properties and structures of H 12 SubPcB-OPh 2 OH. To expand photocatalytic activities for organic dyes degradation, H 12 SubPcB-OPh 2 OH was decorated onto surface of TiO 2 nanoparticles to fabricate high-efficiency H 12 SubPcB-OPh 2 OH/TiO 2 photosensitive catalysts. The degradation experiments indicated that the H 12 SubPcB-OPh 2 OH/TiO 2 catalyst with the mass ratio of 1:25 had the greatest performance in the elimination of methyl orange (MO), bromophenol blue (BB), methylene blue (MB), and acid fuchsin (AF). The 29.4%, 72.5%, 27.6%, and 64.8% of MO, BB, MB, and AF was removed by pure TiO 2 in 180-min, respectively. Under the same conditions, the photocatalytic rate of H 12 SubPcB-OPh 2 OH/TiO 2 can reach 96.3%, 99.5%, 97.5%, and 99.5%, separately. The efficiency of the as-synthesized composite was 3.3, 1.4, 3.5, and 1.5 times higher than that over bare TiO 2 for MO, BB, MB, and AF degradation under visiblelight irradiation, respectively. Besides, after five cycles of experiments, the degradation rate of H 12 SubPcB-OPh 2 OH/TiO 2 photocatalyst to BB can still reach 90.2%, which demonstrated that the obtained photocatalysts possessed remarkable stability and is much higher than 15.6% of pure TiO 2 . This study provides a new idea to the construction of photosensitive catalysts based on TiO 2 for water purification.

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Enhanced Charge Transfer via S‐Scheme Heterojunction Interface Engineering of Supramolecular SubPc–Br/UiO‐66 Arrays for Efficient Photocatalytic Oxidation

Zheng,

Wang,

et al. 2023

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Constructing heterojunction of supramolecular arrays self‐assembled on metal–organic frameworks (MOFs) with elaborate charge transfer mechanisms is a promising strategy for the photocatalytic oxidation of organic pollutants. Herein, H12SubPcB–Br (SubPc–Br) and UiO‐66 are used to obtain the step‐scheme (S‐scheme) heterojunction SubPc–Br/UiO‐66 for the first time, which is then applied in the photocatalytic oxidation of minocycline. Atomic‐level B–O–Zr charge‐transfer channels and van der Waals force connections synergistically accelerated the charge transfer at the interface of the SubPc–Br/UiO‐66 heterojunction, while the establishment of the B–O–Zr bonds also led to the directional transfer of charge from SubPc–Br to UiO‐66. The synergy is the key to improving the photocatalytic activity and stability of SubPc–Br/UiO‐66, which is also verified by various characterization methods and theoretical calculations. The minocycline degradation efficiency of supramolecular SubPc–Br/UiO‐66 arrays reach 90.9% within 30 min under visible light irradiation. The molecular dynamics simulations indicate that B–O–Zr bonds and van der Waals force contribute significantly to the stability of the SubPc–Br/UiO‐66 heterojunction. This work reveals an approach for the rational design of semiconducting MOF‐based heterojunctions with improved properties.

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Novel axial substituted subphthalocyanine and its TiO2 photocatalyst for degradation of organic water pollutant under visible light

Cited by 26 publications

References 50 publications

Photocatalytic hydrogen evolution over cyanine-sensitized Ag/TiO₂

Photocatalytic hydrogen evolution over cyanine-sensitized Ag/TiO₂

Novel axial substituted subphthalocyanine sensitized titanium dioxide H₁₂SubPcB‐OPh₂OH/TiO₂ photocatalyst: Synthesis, density functional theory calculation, and photocatalytic properties

Enhanced Charge Transfer via S‐Scheme Heterojunction Interface Engineering of Supramolecular SubPc–Br/UiO‐66 Arrays for Efficient Photocatalytic Oxidation

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Novel axial substituted subphthalocyanine and its TiO2 photocatalyst for degradation of organic water pollutant under visible light

Cited by 26 publications

References 50 publications

Photocatalytic hydrogen evolution over cyanine-sensitized Ag/TiO2

Photocatalytic hydrogen evolution over cyanine-sensitized Ag/TiO2

Novel axial substituted subphthalocyanine sensitized titanium dioxide H12SubPcB‐OPh2OH/TiO2 photocatalyst: Synthesis, density functional theory calculation, and photocatalytic properties

Enhanced Charge Transfer via S‐Scheme Heterojunction Interface Engineering of Supramolecular SubPc–Br/UiO‐66 Arrays for Efficient Photocatalytic Oxidation

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Photocatalytic hydrogen evolution over cyanine-sensitized Ag/TiO₂

Photocatalytic hydrogen evolution over cyanine-sensitized Ag/TiO₂

Novel axial substituted subphthalocyanine sensitized titanium dioxide H₁₂SubPcB‐OPh₂OH/TiO₂ photocatalyst: Synthesis, density functional theory calculation, and photocatalytic properties