Floating photocatalysts as promising materials for environmental detoxification and energy production: A review

Seifikar, Fatemeh; Habibi-Yangjeh, Aziz

doi:10.1016/j.chemosphere.2024.141686

Cited by 36 publications

(5 citation statements)

References 204 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the large-scale utilization of photocatalysis still faces the challenge of the activity of photocatalysts . Among various photocatalytic materials, photocatalytic reactions based on semiconductors have been focused on because of their high stability, low cost, and so on …”

Section: Introductionmentioning

confidence: 99%

3D/1D Fe₃O₄@TiO₂/TC-TiO₂/SiO₂ Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

Li,

Song

et al. 2024

Inorg. Chem.

View full text Add to dashboard Cite

To achieve a selective degradation of pollutants in a water body, 3D/1D magnetic molecularly imprinted fibers Fe 3 O 4 @ TiO 2 /TC-TiO 2 /SiO 2 were fabricated by an electrospinning method. The molecularly imprinted layer was successfully prepared by a direct imprinting method using TiO 2 as a functional monomer. Fe 3 O 4 facilitates the catalyst recovery and light utilization. The as-prepared fibrous photocatalyst has a large specific surface area of 132.4 m 2 /g. The successful generation of imprinted sites was proven by various characterizations. The weak interaction between the inorganic functional monomer and tetracycline (TC) was determined to be van der Waals force and hydrogen bonds by the IGMH isosurface theory. The construction of the 3D/1D homojunction of molecularly imprinted materials is beneficial to charge transfer. The asprepared photocatalyst exhibits a high selectivity coefficient α = 737.38 competing with RhB. The TC removal efficiency reached 100% within only 20 min. In addition, the possible degradation pathway and the degradation mechanism are reasonably proposed. This work not only provides an in-depth mechanism of the weak interaction between the inorganic molecularly imprinted functional monomer and pollutant molecules but also offers new thoughts on the fabrication of photocatalysts for the effective and selective treatment of pollutants in water bodies.

show abstract

Section: Introductionmentioning

confidence: 99%

3D/1D Fe₃O₄@TiO₂/TC-TiO₂/SiO₂ Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

Li,

Song

et al. 2024

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

“…It has been shown that performing heterojunction development may be one of the effective ways to alleviate the drawbacks of rapid charge compounding of g-C 3 N 4 , enhancement of the visible light harvesting ability, and improvement of enzyme-like activity. 19,22 However, previous studies have been limited only to the doping of metal elements, such as Cu, 23 Fe, 24 and Co, 25 into g-C 3 N 4 . The primary focus of these studies was limited to the enhancement of enzyme-like catalytic activity.…”

Section: ■ Introductionmentioning

confidence: 99%

“…It has been shown that g-C 3 N 4 can not only catalyze the generation of ROS from H 2 O 2 by its POD-like activity , but also generate photogenerated electrons (e – ) and holes (h + ) under visible light by efficiently reacting with H 2 O and O 2 to form hydroxyl radicals (•OH) and superoxide anions (O 2 •– ). , However, g-C 3 N 4 not only exhibits limited POD-like activity but also limited visible light absorption and the high rate of electron–hole pair complexation, which leads to down-regulation of photocatalytic activity. − Consequently, the advancement of g-C 3 N 4 has encountered significant obstacles, necessitating the prompt proposal of innovative strategies to enhance its dual catalytic activity. It has been shown that performing heterojunction development may be one of the effective ways to alleviate the drawbacks of rapid charge compounding of g-C 3 N 4 , enhancement of the visible light harvesting ability, and improvement of enzyme-like activity. , However, previous studies have been limited only to the doping of metal elements, such as Cu, Fe, and Co, into g-C 3 N 4 . The primary focus of these studies was limited to the enhancement of enzyme-like catalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Graphitic Carbon Nitride/V₃O₇ Nanocomposites with Antibacterial Property via Photocatalytic and Nanozyme Activities

Chen,

Li,

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

The increasing prevalence of bacterial issues and the misuse of antibiotics have emerged as significant contemporary problems that demand attention. Hence, there is an urgent need for the development of antibioticfree, efficient, and environmental antibacterial technologies as well as the establishment of an advanced platform for antibiotic detection and analysis. In this study, graphitic carbon nitride/V 3 O 7 nanocomposites (VCNs) with a unique heterojunction structure were synthesized by the chemical precipitation method. VCN not only exhibits remarkably high peroxidase (POD)-like activity but also possesses a favorable band structure. This endows VCN with a broader visible light absorption range and enables effective suppression of the recombination of photogenerated electron−hole pairs, thereby significantly enhancing its photocatalytic activity. With the synergistic effect of photocatalysis and nanozyme catalysis, the "white" plus "black" antibacterial effect of "1 + 1 > 2" has been successfully realized. Therefore, VCN exhibits highly efficient, environmental, and broad-spectrum antibacterial activity (>99.9%). In addition, based on the unique nature of VCN oxidation of 3,3′,5,5′tetramethylbenzidine (TMB), a colorimetric sensing array was successfully constructed that can extract multichannel information from a single reaction element. The feasibility of this array has been demonstrated in the analysis and detection of tetracycline antibiotics (TCs) within complex environments. This not only provides unique insights into the development of nanomaterials with photocatalytic and nanozyme activities but also offers innovative and sustainable solutions for antibacterial activity and effective monitoring of TCs.

show abstract

“…Lately, the technology for producing hydrogen peroxide (H 2 O 2 ) through heterogeneous photocatalysis has been recognized as a highly promising approach for a sustainable and energy-efficient reaction process. − However, the efficiency of photocatalytic H 2 O 2 generation is still far from satisfactory. Therefore, the creation of an efficient and durable photocatalyst stands as a crucial element in significantly enhancing the performance of H 2 O 2 production via photocatalysis .…”

Section: Introductionmentioning

confidence: 99%

Construction of a BiOCl/Bi₂O₂CO₃ S-Scheme Heterojunction Photocatalyst via Sharing [Bi₂O₂]²⁺ Slabs with Enhanced Photocatalytic H₂O₂ Production Performance

Wang,

Chu,

et al. 2024

Langmuir

View full text Add to dashboard Cite

The construction of a close contact interface is key to enhancing the photocatalytic activity in heterojunctions. In the work, the BiOCl/Bi 2 O 2 CO 3 of sharing [Bi 2 O 2 ] 2+ slabs S-scheme heterojunction was prepared by a HCl in situ etching method. The optimal composite photocatalyst could accomplish sizable productivity of H 2 O 2 to 2562.95 μmol g −1 h −1 under simulated solar irradiation, higher than that of primitive Bi 2 O 2 CO 3 and BiOCl. Moreover, the synthesized catalysts showed good stability. The band structures of BiOCl and Bi 2 O 2 CO 3 were determined, confirming the formation of BiOCl/Bi 2 O 2 CO 3 S-scheme heterojunction The BiOCl/Bi 2 O 2 CO 3 , which obviously improved the separation efficiency of photoinduced carriers and effectively enhanced the redox ability of the photocatalyst. In addition, density functional theory (DFT) calculations were utilized to analyze the electron transfer properties and the constitution of the built-in electric field at the interface of BiOCl and Bi 2 O 2 CO 3 . The photocatalytic reaction process was further researched by electron paramagnetic resonance (EPR), indicating the active species in the photocatalytic production of hydrogen peroxide. Eventually, a feasible S-scheme electron transfer mechanism on the BiOCl/Bi 2 O 2 CO 3 heterojunction during the photocatalytic H 2 O 2 production process was proposed and discussed. This work provides a reliable strategy for the fine design of the S-scheme heterojunction.

show abstract

Floating photocatalysts as promising materials for environmental detoxification and energy production: A review

Cited by 36 publications

References 204 publications

3D/1D Fe₃O₄@TiO₂/TC-TiO₂/SiO₂ Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

3D/1D Fe₃O₄@TiO₂/TC-TiO₂/SiO₂ Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

Graphitic Carbon Nitride/V₃O₇ Nanocomposites with Antibacterial Property via Photocatalytic and Nanozyme Activities

Construction of a BiOCl/Bi₂O₂CO₃ S-Scheme Heterojunction Photocatalyst via Sharing [Bi₂O₂]²⁺ Slabs with Enhanced Photocatalytic H₂O₂ Production Performance

Contact Info

Product

Resources

About

Floating photocatalysts as promising materials for environmental detoxification and energy production: A review

Cited by 36 publications

References 204 publications

3D/1D Fe3O4@TiO2/TC-TiO2/SiO2 Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

3D/1D Fe3O4@TiO2/TC-TiO2/SiO2 Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

Graphitic Carbon Nitride/V3O7 Nanocomposites with Antibacterial Property via Photocatalytic and Nanozyme Activities

Construction of a BiOCl/Bi2O2CO3 S-Scheme Heterojunction Photocatalyst via Sharing [Bi2O2]2+ Slabs with Enhanced Photocatalytic H2O2 Production Performance

Contact Info

Product

Resources

About

3D/1D Fe₃O₄@TiO₂/TC-TiO₂/SiO₂ Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

3D/1D Fe₃O₄@TiO₂/TC-TiO₂/SiO₂ Magnetic Inorganic-Framework Molecularly Imprinted Fibers for Targeted Photodegradation

Graphitic Carbon Nitride/V₃O₇ Nanocomposites with Antibacterial Property via Photocatalytic and Nanozyme Activities

Construction of a BiOCl/Bi₂O₂CO₃ S-Scheme Heterojunction Photocatalyst via Sharing [Bi₂O₂]²⁺ Slabs with Enhanced Photocatalytic H₂O₂ Production Performance