Heterostructure TiO 2 polymorphs design and structure adjustment for photocatalysis

He, Di; Su, Heng; Li, Xueqiao; Yu, Haijun; Zubair, Muhammad; Wang, Lin; Mao, Shengcheng; Wang, Jinshu

doi:10.1016/j.scib.2018.02.008

Cited by 18 publications

(15 citation statements)

References 44 publications

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“…For example, Ferna ´ndez-Werner et al 12 reported that the reactivity of TiO 2 -B slabs is comparable with anatase and it could be a good adsorbent in dye-sensitized solar cells. Moreover, some strategies have been attempted to improve the photocatalytic activity of TiO 2 -B, including the fabrication of semiconductor heterostructures, [13][14][15] surface modification, 16,17 metal or nonmetal doping 18,19 and controlling shape or morphology. 20,21 Covering by 2D semiconductors with narrowed band gaps on TiO 2 -B surfaces to form 2D heterojunctions [22][23][24][25] is also an efficient strategy for achieving considerable overall water splitting performance.…”

Section: Introductionmentioning

confidence: 99%

g-C₃N₄/TiO₂-B{100} heterostructures used as promising photocatalysts for water splitting from a hybrid density functional study

Yuan

Liu

2022

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

g-C₃N₄/TiO₂-B{100} heterostructures used as promising photocatalysts for water splitting from a hybrid density functional study

Yuan

Liu

2022

Phys. Chem. Chem. Phys.

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“…Doping of metal on the surface of TiO 2 can be accessible by hydroxyl group present on the surface of a material, which can trap both electron and hole generated. Evidently, trapping experiment has been carried out to evaluate the active radicals responsible for the mineralization process [41]. Isopropanol (IPA) (1%), 1.0 mM of potassium persulfate (K 2 S 2 O 8 ) and ethylenediaminetetraacetic acid (EDTA) were used as scavengers of hydroxyl radicals ( o OH), electron (e−), and holes (h+), respectively (Fig.…”

Section: Photocatalytic Degradation and Mineralization Efficiencymentioning

confidence: 99%

Removal of chlorhexidine digluconate from aqueous solution by heterogenous photocatalysis using sunlight-driven Ni-doped TiO2 material

Singh

Mishra

2022

Environmental Engineering Research

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Photoactive Ni-TiO 2 was synthesized through green hydrothermal method with preferential photocatalytic performance in visible and solar light for synthetic and formulated wastewater treatment. Incorporation of this transition metal into TiO 2 was examined by XRD, FTIR, UV-visible DRS, XPS, FESEM-EDAX and HRTEM analysis. According to the Langmuir-Hinshelwood model, the photodegradation of the chlorhexidine digluconate under solar (R 2 =0.986) and simulated visible light (R 2 =0.982), follows a pseudo-first-order kinetics. The interaction of operational fractions, such as S/C ratio, irradiation time, and pH of the reaction mixture, were evaluated using the RSM. Although complete mineralization of CHD was not achieved using Ni-TiO 2 under visible light, but the parent compound was mineralized to some extent, as demonstrated by TOC reduction (85.71%-synthetic wastewater and 61.17%-formulated wastewater), UV 254 (89.91% synthetic wastewater and 55.39%-formulated wastewater) and UV 280 (68.23%-synthetic wastewater and 68.23%-formulated wastewater) absorbance variations. Based on the identified transformed products, the possible degradation pathway was proposed and bacterial susceptibility test on Bacillus cereus DPAML065 was performed to evaluate the toxicity of oxidation intermediates. Comparative studies about energy consumption and removal efficiency during simulated visible light/Ni-TiO 2 and sunlight/ Ni-TiO 2 mediated treatment system for formulated wastewater revealed that sunlight/ Ni-TiO 2 mediated treatment system was high energy efficient (1.67 kWhKg -1 ) system.

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“…Heterostructures refer to a type of structure made of intimately coupled multiple components with different compositions, phases, or other properties. [84][85][86][87] In contrast to the single-component electrode materials, synergistic effects can generally be reaped at the interface where the advantages of different components are cooperatively harnessed. The one-step direct conversion of the mixed precursors via which different components are simultaneously generated and hybridized in situ represents the most straightforward and effective means to harvest heterostructures.…”

Section: Laser-assisted Fabrication Of Heterostructuresmentioning

confidence: 99%

Laser Irradiation of Electrode Materials for Energy Storage and Conversion

et al. 2020

Matter

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In addition to its traditional use, laser irradiation has found extended application in controlled manipulation of electrode materials for electrochemical energy storage and conversion, which are primarily enabled by the laser-driven rapid, selective, and programmable materials processing at low thermal budgets. In this Review, we summarize the recent progress of laser-mediated engineering of electrode materials, with special emphases on its capability of controlled introduction of structural defects, precise fabrication of heterostructures, and elaborate construction of integrated electrode architecturesall of which are highly desired for many electrochemical processes, yet difficult to be precisely synthesized via conventional technologies. After a brief introduction of the fundamental mechanism of laser processing, its practical use for structural regulation of electrode materials is discussed in detail. The application of these laserenabled materials for supercapacitors, rechargeable batteries, and some fundamental electrocatalytic reactions enabling energy conversion is then summarized. Finally, we highlight the challenges faced at the current stage, aiming to shed some light on the future development of this prosperous field.

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Heterostructure TiO 2 polymorphs design and structure adjustment for photocatalysis

Cited by 18 publications

References 44 publications

g-C₃N₄/TiO₂-B{100} heterostructures used as promising photocatalysts for water splitting from a hybrid density functional study

g-C₃N₄/TiO₂-B{100} heterostructures used as promising photocatalysts for water splitting from a hybrid density functional study

Removal of chlorhexidine digluconate from aqueous solution by heterogenous photocatalysis using sunlight-driven Ni-doped TiO2 material

Laser Irradiation of Electrode Materials for Energy Storage and Conversion

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Heterostructure TiO 2 polymorphs design and structure adjustment for photocatalysis

Cited by 18 publications

References 44 publications

g-C3N4/TiO2-B{100} heterostructures used as promising photocatalysts for water splitting from a hybrid density functional study

g-C3N4/TiO2-B{100} heterostructures used as promising photocatalysts for water splitting from a hybrid density functional study

Removal of chlorhexidine digluconate from aqueous solution by heterogenous photocatalysis using sunlight-driven Ni-doped TiO2 material

Laser Irradiation of Electrode Materials for Energy Storage and Conversion

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g-C₃N₄/TiO₂-B{100} heterostructures used as promising photocatalysts for water splitting from a hybrid density functional study

g-C₃N₄/TiO₂-B{100} heterostructures used as promising photocatalysts for water splitting from a hybrid density functional study