4.7 Article

Carbon functionalities incorporated visible light active CeO2 for augmented abatement of acetaldehyde

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Environmental Sciences

Porous Ag3VO4/KIT-6 composite: Synthesis, characterization and enhanced photocatalytic performance for degradation of Congo Red

Iqra Mahboob et al.

Summary: A novel Ag3VO4/KIT-6 nanocomposite photocatalyst with high surface area and visible light response has been successfully fabricated. The nanocomposite exhibited superior degradation capability for Congo Red, reaching up to 96.49%, which was around three times the pure Ag3VO4. The synthesized material followed a pseudo first order kinetic model for the degradation process. The study also investigated the commercial applicability and proposed a possible degradation pathway for Congo Red.

CHEMOSPHERE (2023)

Article Chemistry, Physical

Simultaneous oxidation of NO and acetaldehyde over bare and Fe-modified TiO2 under visible light irradiation

Shufang Zhao et al.

Summary: The photocatalytic behavior of bare TiO2 and Fe-modified TiO2 (0.4 wt% and 1 wt% of Fe loading) in the rutile phase was investigated for the oxidation of NO and acetaldehyde under visible light irradiation. The 0.4 wt% FeTiO2 photocatalyst exhibited the highest activity for the individual oxidation of NO and acetaldehyde. The enhanced activity of 0.4 wt% Fe-TiO2 can be attributed to the abundant Fe-oxide-TiO2 interface as active sites during the reaction process. Additionally, the simultaneous use of NO and acetaldehyde resulted in complex and mutual influential photocatalytic activity, depending on the concentrations of reactants and the structures of the photocatalysts. Bare TiO2 showed high selectivity for NO oxidation. The complexity of mutual interactions between different pollutants on the photocatalyst surface is a crucial factor that should be considered for real-world applications of photocatalysts.

APPLIED SURFACE SCIENCE (2023)

Article Engineering, Environmental

Photocatalytic oxidation mechanism of Gas-Phase VOCs: Unveiling the role of holes, •OH and •O2-

Zepeng Rao et al.

Summary: This study investigates the role of various reactive oxygen species (ROS) in the photocatalytic oxidation of volatile organic compounds (VOCs), identifying center dot OH radicals as dominant in the degradation of o-xylene and styrene, and center dot O2(-) radicals primarily involved in acetaldehyde degradation. Differentiation of ROS roles was achieved through radical trapping, in situ DRIFTS, and GC-MS analysis, providing insights for the design of efficient photocatalysts and selective formation of intermediates for further applications.

CHEMICAL ENGINEERING JOURNAL (2022)

Review Environmental Sciences

A critical review on relationship of CeO2-based photocatalyst towards mechanistic degradation of organic pollutant

A. A. Fauzi et al.

Summary: Nanostructured photocatalysts, particularly CeO2-based photocatalysts, have shown potential in addressing environmental challenges caused by population growth and urbanization. Modifications of CeO2, such as doping with metals and non-metals, have been explored to enhance photodegradation performance in wastewater treatment. Advanced heterojunction types like p-n heterojunction and Z-scheme show superior performance in charge carrier separation for efficient degradation of contaminants.

CHEMOSPHERE (2022)

Review Engineering, Environmental

Ultraviolet photocatalytic oxidation technology for indoor volatile organic compound removal: A critical review with particular focus on byproduct formation and modeling

Jing Wu et al.

Summary: UV-PCO air filters have low concentrations of typical byproducts for most pollutants, but are not recommended for buildings with high ethanol levels. A new exposure-based evaluation standard was developed based on formaldehyde generation, with 32.5% of cases identified as suitable for residential and commercial HVAC system applications and all cases suitable for industrial buildings. Parameters such as challenging compound types, inlet concentrations, and air velocity were found to be the main factors affecting the applicability of UV-PCO.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Chemistry, Multidisciplinary

Visible-Light-Driven Carbon-Doped TiO2-Based Nanocatalysts for Enhanced Activity toward Microbes and Removal of Dye

Seema Sarwar Ghumro et al.

Summary: In this study, visible light activated nanoflakes were synthesized using a hydrothermal route and their photocatalytic activity was evaluated. The results showed that carbon-doped nanoflakes significantly enhanced the photocatalytic activity compared to bare nanoflakes. Additionally, reduced graphene oxide-TNFs showed good recycling ability and promising potential for photocatalytic applications.

ACS OMEGA (2022)

Review Chemistry, Multidisciplinary

Design and mechanism of photocatalytic oxidation for the removal of air pollutants: a review

Kanglu Li et al.

Summary: Nitric oxide, ammonia and volatile organic compounds are common air pollutants. Photocatalysis has emerged as an environmentally friendly and efficient method to remove these pollutants. Understanding the pollutant removal mechanism is necessary for optimizing photocatalyst design, and photocatalytic degradation holds potential for suppressing by-products and treating pollutant mixtures.

ENVIRONMENTAL CHEMISTRY LETTERS (2022)

Article Chemistry, Physical

Visible-light-active mesoporous ceria (CeO2) nanospheres for improved photocatalytic performance

Jie Pan et al.

Summary: In this work, cubic-phase mesoporous CeO2 nanospheres with excellent properties were fabricated via a solvothermal method. The Zr-doped mCeO2 nanospheres exhibited enhanced visible-light-driven photocatalytic performance, achieving a degradation rate of 94% for methylene blue under visible-light irradiation.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

Article Multidisciplinary Sciences

Degradation of gaseous volatile organic compounds (VOCs) by a novel UV-ozone technology

G. Oliva et al.

Summary: In this study, a UV-assisted ozonation (UV/O-3) process with a final scrubbing phase was implemented to evaluate the removal efficiency of toluene and prevent the release of polluting intermediates. The results showed that higher inlet concentration of toluene resulted in lower abatement, while increasing ozone concentration improved degradation efficiencies. The additional water scrubbing step enhanced the removal rate, and the UV/O-3 + Scrubbing process achieved a maximum Elimination Capacity (ECmax) of 22.6 g m(-3) h(-1). The combined system exhibited higher performance and stability compared to the stand-alone UV/O3 process, while also being more cost-effective and environmentally sustainable.

SCIENTIFIC REPORTS (2022)

Article Engineering, Environmental

Enhanced photocatalytic activity of TiO2 by K incorporation towards acetaldehyde and NO oxidation: The role of K single-ion dopants and additional K-compound structures

Shufang Zhao et al.

Summary: This study investigates the effects of different K contents on the photocatalytic activity of TiO2 under different humidity conditions. It is found that a small amount of K can enhance the photocatalytic activity of acetaldehyde, but excessive K content leads to a decline in activity. Moreover, the photocatalytic activity of acetaldehyde decreases with increasing K content under higher humidity conditions, while the selectivity of NO oxidation gradually increases.

CHEMICAL ENGINEERING JOURNAL (2022)

Review Environmental Sciences

Volatile organic compounds (VOCs) removal by photocatalysts: A review

Soudeh Almaie et al.

Summary: This review examines the recent progress in the field of photocatalytic degradation of volatile organic compounds (VOCs), focusing on high-efficiency photocatalysts. Novel photocatalysts and strategies for enhancing photocatalytic activity are introduced. The procedures of visible light activation of photocatalysts and current challenges are discussed.

CHEMOSPHERE (2022)

Review Engineering, Environmental

Visible light driven doped CeO2 for the treatment of pharmaceuticals in wastewater: A review

Jibran Iqbal et al.

Summary: This review focuses on the use of ceria photocatalyst for treating pharmaceutical contamination in water. Doping with metals and non-metals is found to enhance the photoactivity of CeO2 under visible irradiation, leading to the production of reactive oxygen species and the degradation of pharmaceuticals. Additionally, doping improves the reusability and stability of CeO2 photocatalyst.

JOURNAL OF WATER PROCESS ENGINEERING (2022)

Article Chemistry, Multidisciplinary

Synthesis of TiO2 Nanoparticle-Embedded SiO2 Microspheres for UV Protection Applications

Ghulam Asghar et al.

Summary: Ultraviolet radiation poses serious health risks, leading to an urgent need for more effective and safer UV filters. In this study, titanium dioxide nanoparticles were successfully embedded in silica microspheres, resulting in a new material with excellent UV protection abilities.

CRYSTAL GROWTH & DESIGN (2022)

Review Engineering, Environmental

Photocatalytic Oxidation for Volatile Organic Compounds Elimination: From Fundamental Research to Practical Applications

Yingguang Zhang et al.

Summary: This article systematically reviews the research and development of photocatalytic oxidation (PCO) technology for indoor volatile organic compounds (VOCs) elimination. It briefly discusses different types of photocatalytic materials and the mechanisms for PCO of VOCs, and then provides a detailed review of recent advancements in catalyst immobilization techniques and reactor designs. The existing challenges and future perspectives for PCO of VOCs are also proposed.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

Article Engineering, Environmental

Catalytic oxidation of acetone in air over Ag modified CeO2 catalysts under VUV irradiation: Comparison of different treatment process, performance, and mechanism studies

Amir Payan et al.

Summary: In this study, the performance of different treatment processes, including UV photolysis, ozonation, UV photolysis + ozonation, and vacuum ultraviolet (VUV) photolysis, for the oxidation of acetone in the presence and absence of Ag modified CeO2 photocatalysts was investigated. The results showed that the VUV treatment system exhibited the best performance, achieving more than 40% acetone conversion at room temperature. Furthermore, the addition of Ag/CeO2 photocatalysts to the VUV treatment process not only increased the acetone conversion to 76%, but also eliminated the generated ozone. The addition of Ag to CeO2 photocatalyst under VUV irradiation significantly improved the reaction selectivity and led to a total oxidation level of up to 96% for acetone degradation reactions.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

Article Materials Science, Multidisciplinary

Enhanced photocatalytic activity and mechanism of CeO2 hollow spheres for tetracycline degradation

Dan Wang et al.

Summary: In this study, CeO2 hollow spheres were prepared using a template method and showed the best photocatalytic performance when annealed at 600 degrees Celsius, attributed to their large specific surface areas, high crystallization, and excellent light scattering ability. Active species trapping experiments indicated that superoxide anion and hole were the dominant contributors to tetracycline degradation.

RARE METALS (2021)

Article Chemistry, Physical

Boosting visible-light-driven photocatalytic performance of waxberry-like CeO2 by samarium doping and silver QDs anchoring

Hui Yang et al.

Summary: In this study, a waxberry-like CeO2 photocatalyst with enhanced visible-light-driven photocatalytic performance was achieved through Sm doping and Ag quantum dots anchoring. The doping increased the concentration of oxygen vacancies in CeO2, resulting in a narrower bandgap and improved visible light utilization efficiency. The captured electrons by the vacancies effectively restricted the recombination of photo-excited carriers, leading to enhanced photocatalytic activities.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Environmental Sciences

Hydroxyl/amino and Fe(III) co-grafted graphite carbon nitride for photocatalytic removal of volatile organic compounds

Xiang Liang et al.

Summary: A dual-functionalized carbon nitride photocatalyst with hydroxyl/amino and Fe(III) co-grafted has been fabricated to efficiently remove VOCs by enhancing adsorption capacity and regulating molecular oxygen activation. The synergistic effect of grafted functional groups and Fe(III) clusters accelerates carriers' separation in photocatalysis.

ENVIRONMENTAL RESEARCH (2021)

Article Engineering, Environmental

Enhanced removal efficiency of toluene over activated carbon under visible light

Shahid Saqlain et al.

Summary: The study showed that pre-treating activated carbon with HNO3 can enhance toluene removal efficiency under light exposure. Shorter wavelengths of visible light were more effective in toluene removal compared to longer wavelengths. Activated carbon can sustain its photocatalytic activity when mixed with cement, indicating its potential applications in airpurifying building materials.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Chemical

Reduction of Volatile Organic Compounds (VOCs) Emissions from Laundry Dry-Cleaning by an Integrated Treatment Process of Condensation and Adsorption

Mugeun Song et al.

Summary: The study proposed a VOC treatment process integrating condensation and adsorption to effectively remove VOCs emitted from small-scale laundry shops, with the advantage of sustainable operation. The treatment significantly reduced VOC concentration, leading to a noticeable improvement in air quality and reduction in ozone and secondary organic aerosol generation.

PROCESSES (2021)

Review Materials Science, Biomaterials

Green-synthesized CeO2 nanoparticles for photocatalytic, antimicrobial, antioxidant and cytotoxicity activities

Siti Najihah Naidi et al.

Summary: Cerium oxide nanoparticles have diverse applications in various fields, and utilizing plant extracts for green synthesis helps stabilize the nanoparticles and improve performance. The effects of this synthesis method and applications of the nanoparticles have been researched and discussed.

JOURNAL OF MATERIALS CHEMISTRY B (2021)

Article Materials Science, Multidisciplinary

FeO-CeO2 nanocomposites: an efficient and highly selective catalyst system for photothermal CO2 reduction to CO

Jiaqing Zhao et al.

NPG ASIA MATERIALS (2020)

Review Green & Sustainable Science & Technology

Biological Waste Air and Waste Gas Treatment: Overview, Challenges, Operational Efficiency, and Current Trends

Daniel Dobslaw et al.

SUSTAINABILITY (2020)

Review Chemistry, Physical

Photothermocatalysis for efficient abatement of CO and VOCs

Yuanzhi Li et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

Article Engineering, Environmental

Photocatalytic oxidation of volatile organic compounds for indoor environment applications: Three different scaled setups

Zahra Shayegan et al.

CHEMICAL ENGINEERING JOURNAL (2019)

Article Engineering, Electrical & Electronic

Band gap engineering, electronic state and local atomic structure of Ni doped CeO2 nanoparticles

Kavita Kumari et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2019)

Article Chemistry, Multidisciplinary

Fabrication of Novel CeO2/GO/CNTs Ternary Nanocomposites with Enhanced Tribological Performance

Chunying Min et al.

APPLIED SCIENCES-BASEL (2019)

Article Materials Science, Multidisciplinary

Synthesis of g-C3N4/N-doped CeO2 composite for photocatalytic degradation of an herbicide

Mohan Kumar Kesarla et al.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T (2019)

Review Engineering, Environmental

TiO2 photocatalyst for removal of volatile organic compounds in gas phase - A review

Zahra Shayegan et al.

CHEMICAL ENGINEERING JOURNAL (2018)

Article Engineering, Environmental

Toluene and acetaldehyde removal from air on to graphene-based adsorbents with microsized pores

Ji Min Kim et al.

JOURNAL OF HAZARDOUS MATERIALS (2018)

Article Materials Science, Characterization & Testing

Synthesis of cerium oxide (CeO2) by co-precipitation for application as a reference material for X-ray powder diffraction peak widths

Anderson Marcio de Lima Batista et al.

POWDER DIFFRACTION (2018)

Review Chemistry, Multidisciplinary

A critical review on TiO2 based photocatalytic CO2 reduction system: Strategies to improve efficiency

Nasir Shehzad et al.

JOURNAL OF CO2 UTILIZATION (2018)

Review Chemistry, Physical

Photocatalytic oxidation technology for indoor environment air purification: The state-of-the-art

Alireza Haghighat Mamaghani et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2017)

Article Multidisciplinary Sciences

Transition-Metal Doped Ceria Microspheres with Nanoporous Structures for CO Oxidation

Lin Zhou et al.

SCIENTIFIC REPORTS (2016)

Article Chemistry, Applied

Gold supported on metal oxides for volatile organic compounds total oxidation

S. A. C. Carabineiro et al.

CATALYSIS TODAY (2015)

Article Spectroscopy

Characterisation of metal carboxylates by Raman and infrared spectroscopy in works of art

Vanessa Otero et al.

JOURNAL OF RAMAN SPECTROSCOPY (2014)

Article Nanoscience & Nanotechnology

X-ray photoelectron spectroscopy study of high-k CeO2/La2O3 stacked dielectrics

Jieqiong Zhang et al.

AIP ADVANCES (2014)

Article Engineering, Environmental

Low temperature oxidation of toluene by ozone over MnOx/γ-alumina and MnOx/MCM-41 catalysts

Ebrahim Rezaei et al.

CHEMICAL ENGINEERING JOURNAL (2012)

Article Chemistry, Physical

Elucidating the photocatalytic degradation pathway of acetaldehyde: An FTIR in situ study under atmospheric conditions

Birger Hauchecorne et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2011)

Article Engineering, Environmental

Photocatalytic abatement of VOCs by novel optimized TiO2 nanoparticles

Murid Hussain et al.

CHEMICAL ENGINEERING JOURNAL (2011)

Article Engineering, Environmental

Studies on the activity and deactivation of novel optimized TiO2 nanoparticles for the abatement of VOCs

Naseem Abbas et al.

CHEMICAL ENGINEERING JOURNAL (2011)

Review Chemistry, Physical

Application of TiO2 photocatalysis for air treatment: Patents' overview

Yaron Paz

APPLIED CATALYSIS B-ENVIRONMENTAL (2010)

Article Engineering, Environmental

Synthesis, characterization, and photocatalytic application of novel TiO2 nanoparticles

M. Hussain et al.

CHEMICAL ENGINEERING JOURNAL (2010)

Article Engineering, Chemical

Kinetic Study of Acetaldehyde Photocatalytic Oxidation with a Thin Film of TiO2 Coated on Stainless Steel and CFD Modeling Approach

Amelie Queffeulou et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2010)

Article Chemistry, Physical

Quantitative analysis of saccharides by X-ray photoelectron spectroscopy

Joanna S. Stevens et al.

SURFACE AND INTERFACE ANALYSIS (2009)

Article Nanoscience & Nanotechnology

Micro structural parameters from X-ray diffraction peak broadening

T Ungár

SCRIPTA MATERIALIA (2004)

Review Biochemical Research Methods

Adsorbent materials commonly used in air analysis for adsorptive enrichment and thermal desorption of volatile organic compounds

K Dettmer et al.

ANALYTICAL AND BIOANALYTICAL CHEMISTRY (2002)