Synthesis of visible-light-driven photocatalyst of TiO2 modified waste red mud and its application in tetracycline hydrochloride removal

Article Chemistry, Physical

Boosting visible light photocatalysis in an Au@TiO2 yolk-in-shell nanohybrid

Jun Hu et al.

Summary: By designing a unique yolk-in-shell nanostructure, a significant improvement in nanocatalysis under visible light photocatalysis has been achieved, demonstrating high selectivity towards CO production.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

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Article Chemistry, Physical

Preparation of flower-like Co3O4 QDs/Bi2WO6 p-n heterojunction photocatalyst and its degradation mechanism of efficient visible-light-driven photocatalytic tetracycline antibiotics

Xia Zhang et al.

Summary: A novel flower-like Co3O4 QDs/Bi2WO6 p-n heterostructure photocatalyst with enhanced visible light absorption and efficient degradation of tetracycline antibiotics was successfully prepared and characterized in this study.

APPLIED SURFACE SCIENCE (2022)

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Article Materials Science, Ceramics

Improvement of thermal insulation and compressive performance of Al2O3-SiO2 aerogel by doping carbon nanotubes

Daiping Jiang et al.

Summary: This study investigates the effects of carbon nanotubes (CNTs) on the microstructure, mechanical properties, heat insulation properties, and theoretical thermal conductivity of Al2O3-SiO2 aerogel composites. The results show that the addition of CNTs can significantly improve the comprehensive properties of the aerogel composites.

CERAMICS INTERNATIONAL (2022)

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Article Chemistry, Physical

A DFT theoretical and experimental study about tetracycline adsorption onto magnetic graphene oxide

Franciele da Silva Bruckmann et al.

Summary: This study investigates the adsorption of tetracycline on magnetic graphene oxide, revealing a high adsorption capacity and efficient removal of tetracycline from aqueous solutions via a chemisorption mechanism. The theoretical and experimental approaches are coherent, demonstrating the effectiveness of GO center dot Fe3O4 as a nanomaterial for tetracycline removal.

JOURNAL OF MOLECULAR LIQUIDS (2022)

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Article Chemistry, Physical

Enhanced photocatalytic activity of TiO2/WO3 nanocomposite from sonochemical-microwave assisted synthesis for the photodegradation of ciprofloxacin and oxytetracycline antibiotics under UV and sunlight

Nassiba Moghni et al.

Summary: TiO2/WO3 photocatalysts were prepared using a simple assisted sonochemical-microwave combination, resulting in nanoparticulated crystallite anatase phase of TiO2 and well-dispersed WO3. The photocatalytic activity of TiO2/WO3 was significantly improved compared to bare TiO2, with 5 wt% WO3 doping showing the best performance under UV and sunlight irradiation. The incorporation of WO3 extended the light absorption range and decreased the rate of electron-hole recombination, leading to increased photocatalytic activity. The TiO2/WO3 catalyst also demonstrated good stability and performance in the presence of high concentrations of pollutants and after multiple uses.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY (2022)

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Review Chemistry, Multidisciplinary

Recent Advances in Plasmonic Photocatalysis Based on TiO2 and Noble Metal Nanoparticles for Energy Conversion, Environmental Remediation, and Organic Synthesis

Ajay Kumar et al.

Summary: Plasmonic photocatalysis is a prominent field that efficiently utilizes sunlight to drive chemical reactions. Materials based on TiO2 and plasmonic nanoparticles are at the forefront of heterogeneous photocatalysis, with applications in energy conversion and wastewater treatment, among others. This review comprehensively covers the fundamentals and state-of-the-art concepts in this field, aiming to inspire the development of next-generation TiO2-based plasmonic photocatalysts.

SMALL (2022)

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Article Engineering, Environmental

Enhanced visible-light photocatalytic performance of ZIF-8-derived ZnO/TiO2 nano-burst-tube by solvothermal system adjustment

Qiushi Jiang et al.

Summary: This study proposes a novel strategy for the preparation of heterojunction derivants by regulating the loading of precursors, which can effectively remove dyes and antibiotics. The results show that ZIF-8-derived ZnO/TiO2 NBT exhibits enhanced specific surface area and visible light response, and can rapidly degrade dyes and antibiotics under visible light irradiation, with excellent cyclic photocatalytic performance.

JOURNAL OF WATER PROCESS ENGINEERING (2022)

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Article Chemistry, Physical

Plasma-Treated F modified TiO2 impact to enhance the photocatalytic performance of TiO2

Bo Yu et al.

Summary: The F modification of titanium dioxide was achieved for the first time through a plasma method, resulting in efficient degradation of dyes under visible light.

CHEMICAL PHYSICS LETTERS (2022)

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Article Chemistry, Physical

Novel ZnO nanorods/Bi2MoO6/MIL-101(Fe) heterostructure immobilized on FTO with boosting photocatalytic activity for tetracycline degradation: Reaction mechanism and toxicity assessment

Mahboube Hajiali et al.

Summary: The new ZnO nanorods/ Bi2MoO6/ MIL-101(Fe) photocatalyst with enhanced photocatalytic activity was successfully synthesized, with a bandgap of 2.3 eV. Experimental data analysis determined the optimal composite ratio and catalytic conditions, while toxicity testing confirmed the non-toxicity of intermediate products.

APPLIED SURFACE SCIENCE (2022)

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Article Chemistry, Applied

A review on heterogeneous photocatalysis for environmental remediation: From semiconductors to modification strategies

Huijie Wang et al.

Summary: Heterogeneous photocatalysis has potential applications in environmental remediation, but faces challenges such as low efficiency and high costs. More research is needed to better understand and apply it in practical scenarios. This review provides reference directions for designing photocatalytic systems for environmental pollutants.

CHINESE JOURNAL OF CATALYSIS (2022)

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Article Metallurgy & Metallurgical Engineering

Red Mud: Fundamentals and New Avenues for Utilization

M. Archambo et al.

Summary: Red mud is hazardous waste with a high generation rate and global stockpile. It is often disposed in environmentally harmful ways, but methods like CO(2) neutralization can reduce its impact. Innovative processes like the iron nugget method can extract valuable minerals from red mud and provide value to the waste.

MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW (2021)

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Article Chemistry, Physical

Z-Scheme 2D/2D alpha-Fe2O3/g-C3N4 heterojunction for photocatalytic oxidation of nitric oxide

Yanxian Geng et al.

Summary: The Z-scheme 2D/2D α-Fe2O3/g-C3N4 heterojunction prepared by impregnation-hydrothermal method shows efficient photocatalytic degradation of pollutants with high stability and reusability. The unique structure with high interfacial area and widely-dispersed active sites leads to broad visible-light absorption and promotes charge transfer, resulting in significantly improved efficiency for NO removal compared to g-C3N4 alone.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

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Article Chemistry, Physical

Facile synthesis hierarchical porous structure anatase-rutile TiO2/g-C3N4 composite for efficient photodegradation tetracycline hydrochloride

Haoran Zhang et al.

Summary: The anatase-rutile TiO2/g-C3N4 (denoted as ARC) photocatalyst with hierarchical porous structure was synthesized using TiCl4 and melamine as precursors through an impregnation-calcination method. Controlling the dosage of melamine can regulate the content of g-C3N4 and the relative content of anatase and rutile in ARC. ARC-5 exhibited the highest visible-light photocatalytic property for degrading tetracycline hydrochloride (TC-HCl), with a degradation rate of 92% in 60 minutes and a kinetic constant 4.4 times higher than g-C3N4.

APPLIED SURFACE SCIENCE (2021)

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Article Engineering, Environmental

Novel step-scheme red mud based Ag3PO4 heterojunction photocatalyst with enhanced photocatalytic performance and stability in photo-Fenton reaction

Qingyong Li et al.

Summary: This study successfully prepared a new Ag3PO4/RM composite using red mud as a host material for the growth of silver phosphate, exhibiting remarkable photocatalytic activity, stability, and reusability for the degradation of TC-HCl in photo-Fenton reaction. The S-scheme charge transfer in APRM-110 accelerated the separation of photo-generated carriers, effectively restraining photocorrosion.

CHEMICAL ENGINEERING JOURNAL (2021)

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Review Environmental Sciences

Tetracyclines in the environment: An overview on the occurrence, fate, toxicity, detection, removal methods, and sludge management

Jaimy Scaria et al.

Summary: Tetracyclines, a group of broad-spectrum antibiotics, have extensive applications but also pose environmental contamination issues due to their persistent residues and resistance development in microorganisms. Conventional treatment systems are inadequate in removing TCs, requiring a combination of different removal methods for effective mitigation.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

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Review Engineering, Environmental

Characteristic, hazard and iron recovery technology of red mud-A critical review

Xiao Liu et al.

Summary: This paper systematically reviews the iron recovery methods for high-iron RM, dividing them into physical separation, pyrometallurgy (reduction smelting and reduction roasting), and hydrometallurgy (acid leaching). The basic principles and effects of these technologies are summarized, as well as the advantages and disadvantages. Feasibility and economic cost are identified as main factors restricting industrial application.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Article Environmental Sciences

Strategic combination of ultra violet-visible-near infrared light active materials towards maximum utilization of full solar spectrum for photocatalytic chromium reduction

Abhishek Jain et al.

Summary: Maximizing the utilization of the full solar spectrum in photocatalysis is essential for renewable energy sources and environmental health. A strategic combination of materials has been successfully utilized for chromium reduction, paving the way for the design of more efficient photocatalytic systems.

CHEMOSPHERE (2021)

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Article Green & Sustainable Science & Technology

Red mud- and metakaolin-based geopolymers for adsorption and photocatalytic degradation of methylene blue: Towards self-cleaning construction materials

Kardelen Kaya-Ozkiper et al.

Summary: The study demonstrated the potential of RM- and MK-based geopolymers for methylene blue removal and photocatalysis, making them suitable as self-cleaning, environmentally friendly construction materials. Furthermore, the research found that an increase in anatase concentration led to enhanced photocatalytic activity, providing a new approach for wastewater treatment.

JOURNAL OF CLEANER PRODUCTION (2021)

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Article Engineering, Chemical

A dramatic enhancement of antibiotic photodegradation catalyzed by red mud-derived Bi5FeTi3O15

Luhua Shao et al.

Summary: This study utilized recovered materials from red mud to prepare layered ferroelectric perovskite materials with superior photocatalytic performance, and confirmed that elements such as Co, Ca, and Al in red mud contribute to enhancing photocatalytic activity.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

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Article Environmental Sciences

Enhanced heterogeneous photo-Fenton-like degradation of tetracycline over CuFeO2/biochar catalyst through accelerating electron transfer under visible light

Shuaishuai Xin et al.

Summary: The study prepared CuFeO2/biochar catalysts via hydrothermal technique and found that CuFeO2/biochar-1.0 containing 1.0 g biochar exhibited higher carrier density and longer photoelectron lifetime, leading to enhanced catalytic performance.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2021)

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Article Engineering, Environmental

Visible-light photocatalytic degradation of tartrazine using hydrothermal synthesized Ag-doped TiO2 nanoparticles

Rudzani Ratshiedana et al.

Summary: The study focuses on the impact of silver ion doping on the photocatalytic activity of titanium dioxide for the degradation of tartrazine. Results show that optimal degradation of tartrazine can be achieved with a certain amount of doping, suggesting potential applications for removing similar organic pollutants from water.

JOURNAL OF WATER PROCESS ENGINEERING (2021)

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Article Engineering, Environmental

Hollow spherical WO3/TiO2 heterojunction for enhancing photocatalytic performance in visible-light

Qi Wang et al.

Summary: A novel hollow-sphere structure of WO3/TiO2 heterojunction was prepared by a combination of hydrothermal and calcination method. The heterojunction showed improved photocatalytic performance in degrading dye and micro-organic pollutant, with TiO2 acting as a photo-generated hole acceptor to enhance photocatalytic efficiency. This makes it a promising candidate for wastewater treatment.

JOURNAL OF WATER PROCESS ENGINEERING (2021)

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Article Materials Science, Ceramics

Synthesis of novel p-n heterojunction Cu2SnS3/Ti3+-TiO2 for the complete tetracycline degradation in few minutes and photocatalytic activity under simulated solar irradiation

K. Shahzad et al.

Summary: By doping Ti3+ and Cu2SnS3 into TiO2, the Cu2SnS3/Ti3+-TiO2 photocatalyst exhibited excellent degradation performance and stability, efficiently degrading organic pollutants and producing hydrogen energy.

CERAMICS INTERNATIONAL (2021)

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Article Chemistry, Applied

Constructing low-cost Ni3C/twin-crystal Zn0.5Cd0.5S heterojunction/homojunction nanohybrids for efficient photocatalytic H2 evolution

Rongchen Shen et al.

Summary: This study combines low-cost metallic Ni3C cocatalysts with twin nanocrystal Zn0.5Cd0.5S (ZCS) solid solution homojunctions to achieve efficient visible-light-driven H-2 evolution. The ZCS-1 heterojunction/homojunction nanohybrid shows the highest photocatalytic H-2-evolution rate, indicating a more efficient photocatalytic H-2 evolution compared to other noble metal photocatalytic systems. The unique strategy of constructing heterojunction/homojunction hybrid nanostructures demonstrates improved catalytic activity for H-2 evolution under visible light.

CHINESE JOURNAL OF CATALYSIS (2021)

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Article Materials Science, Multidisciplinary