Article
Engineering, Multidisciplinary
Renrong Zheng, Zhen Wang, Chunquan Zhang, Binbin Chen, Haisheng San, Hui Yu
Summary: A hydrogenated black m-TiO2/CeO2 nanocomposite aerogel was prepared and showed enhanced photocatalytic activity in degrading Rhodamine B and water splitting under visible-light irradiation. The photocatalytic enhancement mechanisms included large specific surface area, enhanced conductivity, and the generation of self doped defects in the Z-scheme heterojunction, providing more active sites, extending the absorption range of solar light, and suppressing carrier recombination.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Jun Jing, Yucheng Feng, Shuying Wu, Zhangjie Ye, Liu Yang, Jiaolong Li, Youyan Chen, Fei Yang
Summary: In this study, a beta-FeOOH/TiO2/cellulose nanocomposite aerogel was developed as an efficient and convenient catalyst for the photo-Fenton system. The cellulose aerogel acted as a microreactor to prevent particle aggregation and as a supporting material to improve catalyst stability and recyclability. The composite aerogel exhibited high photocatalytic performance and showed no significant decrease in efficiency after multiple cycles, suggesting its great potential in wastewater treatment.
Article
Environmental Sciences
Pooja Kumari, Rajib Saha, Gaurav Saikia, Aditya Bhujel, Mahua Gupta Choudhury, Pravin Jagdale, Samrat Paul
Summary: The use of TiO2 nanoparticles for photocatalysis for the degradation of organic dyes under UV light for wastewater treatment has been widely studied. However, the photocatalytic characteristics of TiO2 nanoparticles are inadequate. In this study, three types of nanoparticles (TiO2, ZrO2, and mixed-phase TiO2-ZrO2) were synthesized and their properties were examined. The results showed that the mixed-phase TiO2-ZrO2 nanoparticles exhibited higher photocatalytic activity for the degradation of Eosin Yellow under visible light compared to TiO2 and ZrO2 nanoparticles.
Article
Chemistry, Physical
Junlei Wang, Xueqin Wang, Qihui Chen, Helong Xu, Man Dai, Mei Zhang, Wenyi Wang, Hua Song
Summary: The microstructure of photocatalysts, such as hollow TiO2 spheres synthesized using RF polymer resin, plays a vital role in enhancing photocatalytic performance. Adjusting the concentration of ammonia during synthesis affects the micromorphology and photocatalytic properties of the TiO2 spheres. The high conductivity and surface area of the hollow TiO2 spheres contribute to their efficient photocatalytic performance in phenol decomposition.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Applied
Mina Ardani, Mina Imani, Azadeh Tadjarodi
Summary: Magnetic Fe3O4@TiO2 nanospheres supported by mesoporous silica aerogel substrate were synthesized using a simple combining procedure of sol-gel and ultrasound assisted reflux technique for photocatalytic activity. The resulting ternary nanocomposite showed highly dispersed and covered Fe3O4@TiO2 nanoparticles on the silica aerogel. The prepared hydrophobic porous silica aerogel exhibited fine particulate morphology with low density and good degree of porosity. The Fe3O4@TiO2 on the silica aerogel nanoparticles formed a core shell spherical morphology with decreased BET surface area, confirming the formation of Fe3O4@TiO2/silica aerogel nanocomposite. The prepared ternary nanocomposite demonstrated good photocatalytic activity for the removal of tetracycline from water under visible light.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
H. Bouyarmane, C. El Bekkali, J. Labrag, I. Es-saidi, O. Bouhnik, H. Abdelmoumen, A. Laghzizil, J-M Nunzi, D. Robert
Summary: TiO2-hydroxyapatite nanocomposites were prepared and tested for drug degradation under UV light. They showed efficient adsorption and photocatalytic degradation of ciprofloxacin and ofloxacin in water, with higher efficiency at high TiO2 content.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Xiaodong Jiang, Jiankun Wang
Summary: A three-dimensional TiO2/reduced graphene oxide (TiO2-rGO) aerogel with enhanced interfacial charge transfer was synthesized using a hydrothermal method, showing excellent photocatalytic activity for the degradation of Methylene Blue (MB) and Reactive Red 24 (RR24) dyes. The photocatalytic degradation rate of TiO2-rGO aerogel was more than 3.8 times that of pure TiO2 and more than 2.7 times that of TiO2-GO aerogel. The enhanced photocatalytic activity was attributed to the increased pi-conjugated structure of rGO, which improved interfacial charge transfer and inhibited electron-hole pairs recombination. The active species in the photocatalytic degradation process were suggested to be center dot OH and center dot O-2(-). These findings provide a significant reference for the preparation of high-performance TiO2-based photocatalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Suhail Iqbal Wani, Adil Shafi Ganie
Summary: In this work, a tertiary Ag2O incorporated ZnO-TiO2 nanocomposite was fabricated and used as a photocatalyst for organic dye degradation under visible light. The nanocomposite with 3 wt% Ag2O showed enhanced degradation efficiency for Rhodamine-B dye, attributed to increased reactive sites. Additionally, the nanocomposite exhibited improved electrical properties with ionic conductivity and bulk resistance that contribute to enhanced photocatalytic activity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Engineering, Environmental
Lizhu Chen, Xueting Xie, Xianliang Song, Shucan Luo, Shengying Ye, Wenbei Situ
Summary: MTR, a novel nano-composite photocatalyst synthesized for ethylene degradation, showed small band gaps, good conductivity, improved charge transfer, and stable photocatalytic activity. It has the potential to maintain the quality of harvested fruits and vegetables effectively.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Ines E. Oliveira, Ricardo M. Silva, Joana Rodrigues, Maria R. Correia, Teresa Monteiro, Joaquim L. Faria, Rui F. Silva, Claudia G. Silva
Summary: Titanium oxide (TiO2) thin films were grown on non-functionalized wave-like patterned vertically aligned carbon nanotubes (w-VA-CNTs) using atomic layer deposition (ALD) technique. The structure of the TiO2/VA-CNT nanocomposites varied from amorphous to crystalline phase with increasing deposition temperature. The nanocomposite consisting of anatase crystalline TiO2 grown at 200 degrees C presented the highest degradation efficiency and recyclability for practical applications.
Article
Chemistry, Inorganic & Nuclear
Mridushmita Baruah, Soremo L. Ezung, Shisak Sharma, Upasana Bora Sinha, Dipak Sinha
Summary: Nickel-doped titanium dioxide nanoparticles deposited on pine cone activated carbon were successfully synthesized using a hydrothermal method. The synthesized nanocomposite had a higher surface area and narrower bandgap, and exhibited superior visible-light photocatalytic activity for the degradation of anthracene.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Environmental Sciences
Xinghao Ren, Hang Yao, Rui Tang, A. Rong, Shoujun Yuan, Wei Wang, Ibrahim Mohamed Ali, Zhen-Hu Hu
Summary: By co-doping erbium ion (Er3+) and graphene oxide (rGO) onto titania (TiO2), the visible light absorption efficiency of TiO2 can be increased and the migration of photogenerated electron can be enhanced, enabling complete degradation of p-ASA under visible light irradiation. The introduction of Er3+ and rGO also facilitates the adsorption and removal of inorganic arsenic from the solution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Engineering, Environmental
Xueqi Li, Hongyan Wei, Tiehong Song, Hai Lu, Xiaoyan Wang
Summary: This article reviews the preparation methods, performance evaluation, and applications of modified TiO2 photocatalysts. It discusses the effects and mechanisms of modified TiO2 photocatalysts on degrading organic pollutants in water bodies, as well as the influencing factors. The article summarizes the achievements, advantages, existing problems, challenges, and future prospects in this field.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Guifei Zhang, Shiyun Tang, Anjiang Tang
Summary: Bimetallic co-doped ordered mesoporous MxCey/(TiO2)(z)@SiO2 aerogel composites were prepared by the sol-gel combined with atmospheric pressure drying method. The catalysts showed good adsorption capacity and the doping of Y and Zn contributed to the highest catalytic performance, achieving a degradation rate of 98% under visible light.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Aviraj Kuldeep, Utkarsh More, Sharadchandra S. Patil, Sushant Patil, Amitkumar Patil
Summary: In this paper, a TiO2-graphite nanocomposite was successfully fabricated using a sol-gel method. The composite exhibited the presence of anatase TiO2 and graphite plane through XRD patterns and HR-TEM observations. Raman analysis revealed the disorder and the relationship between carbon atoms. The composite material showed a rough surface with clear graphite sheets according to FE-SEM images. Its high purity was confirmed by the EDS result. The TiO2-graphite nanocomposite demonstrated a higher photocatalytic activity compared to pristine TiO2 for MO dye degradation under UV light, indicating its potential in environmental pollution remediation.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Chemistry, Physical
Mona Kohantorabi, Gholamreza Moussavi, Paula Oulego, Stefanos Giannakis
Summary: Calcined Hormuz Red Soil (C-HRS), a naturally hematite-containing mineral, showed remarkable catalytic activity in the ozonation process of Acetaminophen (ACT). C-HRS accelerated ozone decomposition and efficiently catalyzed the peroxone reaction for ACT degradation and mineralization, demonstrating high stability and reusability for consecutive catalytic cycles. This work provides a new, effective, and cost-efficient catalyst for accelerating ozone decomposition in pollutant oxidation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Environmental Sciences
Samira Mohammadi, Gholamreza Moussavi, Stefanos Giannakis
Summary: The study found that coupling the chemical-less UVC/VUV process and packed bed bioreactor system can efficiently treat toxic environmental contaminants, such as p-nitrophenol (pNP). This hybrid system showed significantly higher efficiency in degrading pNP compared to using each system individually.
Article
Environmental Sciences
A. Rezaee, G. Moussavi, A. Feil, R. Norouzzadeh, M. Moradi, K. Azami, K. Keshavarz
Summary: The study examined the effectiveness of disc screen equipment in sorting mixed wastepaper, compensating for the adverse effects of moisture content by adjusting the inclination and rotation speed of the equipment to achieve 100% classification efficiency. The disc screen is shown to be a feasible approach for increasing recovery rates and enhancing sorting performance to provide higher quality feed for subsequent steps.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Saeed Molaei, Gholamreza Moussavi, Nasser Talebbeydokhti, Sakine Shekoohiyan
Summary: This study utilized an Anoxic Packed Bed Biofilm Reactor (AnPBR) inoculated with biosurfactant-producing bacteria for the biodegradation of petroleum wastewater. The results showed that highly acclimated biomass decreased the start-up phase period, and increasing initial TPH concentration resulted in higher removal efficiencies. Additionally, decreasing HRT led to an increase in specific hydrocarbon utilization rate.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Polymer Science
Samira Mohammadi, Gholamreza Moussavi, Mohsen Rezaei
Summary: This study investigated a novel biotreatment process for the degradation of plastic wastes, specifically low-density polyethylene (LDPE) films, using a bacterial consortium capable of peroxidase production in the presence of H2O2. Results showed that the selected bacterial consortia effectively degraded LDPE films, with improved degradation observed when H2O2 was added to stimulate microbial activity. The study also confirmed the depolymerization of LDPE films and the ability of the selected bacterial species to use them as carbon and energy sources.
Article
Engineering, Chemical
Pradip Saha, Yicheng Wang, Mahsa Moradi, Robert Bruninghoff, Gholamreza Moussavi, Bastian Mei, Guido Mul, Huub H. M. Rijnaarts, Harry Bruning
Summary: The study compared various advanced oxidation processes for treating cooling tower blowdown water containing organic compounds and chlorides, and found that heat-activated persulfate oxidation (PS) was the most effective method for removing organic compounds and generating the least amount of chlorinated byproducts.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Haleh Mohebali, Gholamreza Moussavi, Meghdad Karimi, Stefanos Giannakis
Summary: In this study, a novel Fe3O4@Ce-UiO-66 composite was prepared and tested for the catalytic ozonation of Acetaminophen (ACT) in water solution. The results showed that Fe3O4@Ce-UiO-66 significantly enhanced the degradation and mineralization of ACT, and demonstrated its catalyzing role in the ozonation process. The catalyst exhibited efficient separation, stability, and reusability, and the degradation intermediates and transformation pathways of ACT were identified using LC-MS analysis.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biotechnology & Applied Microbiology
Farzaneh Fanaei, Gholamreza Moussavi, Sakine Shekoohiyan
Summary: This study investigated the effectiveness of an H2O2-stimulated slurry bioreactor for the bioremediation of real oil-contaminated soil. Optimal conditions for complete biodegradation of 32 gTPH/kg soil in the slurry bioreactor were determined. Results showed that under these conditions, complete biodegradation of 32 g/kg TPH in oil-contaminated soil was achievable in 6 days.
Review
Engineering, Environmental
Mohsen Ansari, Gholamreza Moussavi, Mohammad Hassan Ehrampoosh, Stefanos Giannakis
Summary: Non-thermal plasma (NTP) is a novel oxidation method for water and wastewater treatment, involving the interaction among oxidative species, ultraviolet light, and synthetic organic pollutants (SOPs). Previous reviews have mainly focused on the chemical interaction, performance efficiency, and environmental applications of NTP, neglecting the assessment of energy yield as a crucial determinant. This comprehensive review summarizes recent research findings and compares different systems. Factors influencing NTP oxidation systems, including voltage, frequency, initial pollutant concentration, output power, pH, conductivity, discharge time, and removal efficiency, are discussed. The coupling of NTP with catalytic processes can significantly improve performance and energy yield, with the catalytic NTP technique showing synergistic effects up to 600 times greater.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Somayeh Ostovar, Gholamreza Moussavi, Samira Mohammadi, Maria Luisa Marin, Francisco Bosca, Ander Diego-Lopez, Stefanos Giannakis
Summary: In this study, a Ti-doped alumina xerogel (TAX) was synthesized from Al powder, showing mesoporous nanomaterial with high specific surface area and efficient bandgap energy. The TAX exhibited high photocatalytic performance for water treatment, degrading almost 97% of Remdesivir (RDV) within 30 minutes. The application potential of TAX was further demonstrated through its notable performance in E. coli inactivation and consecutive reused cycles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Haleh Mohebali, Gholamreza Moussavi, Meghdad Karimi, Stefanos Giannakis
Summary: We investigated the catalytic activity of magnetic CeZrUiO-66 Metal-Organic Framework (MOF) composites (Fe3O4/CeZrUiO-66) for ciprofloxacin degradation by catalytic ozonation. The composite with a 30:70 ratio of Fe3O4:CeZrUiO-66 exhibited the highest efficiency, achieving a 97% elimination yield within 30 minutes. The catalytic ozonation process (COP) showed higher CIP mineralization compared to the single ozonation process (SOP), and OH radicals were identified as the main reactive species.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Applied
Hengameh Tarviji, Sakine Shekoohiyan, Gholamreza Moussavi, Mohsen Heidari
Summary: This study investigated the contamination levels of toxic metals (TMs) in rice cooked under real conditions by rural households in northern Iran. The levels of arsenic (As) and cadmium (Cd) in the cooking water used in rural households were found to be low, but the levels of As and Cd in both raw and cooked rice posed health risks. Therefore, monitoring the TMs levels in home-cooked rice is essential for a more realistic and important assessment of public health risks.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Environmental Sciences
Ali Mahmoudnia, Nasser Mehrdadi, Majid Baghdadi, Gholamreza Moussavi
Summary: This study investigates the performance of an electrochemical system for the simultaneous removal of microplastics and DDBAC. Experimental results indicate that optimum conditions lead to the maximum removal of microplastics, DDBAC, and TOC. Financial and energy consumption analyses confirm the commercial feasibility of this process as a promising technology for the removal of DDBAC-microplastics complexes in water and wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Ali Mahmoudnia, Nasser Mehrdadi, Majid Baghdadi, Gholamreza Moussavi
Summary: This study investigates the performance of an electrochemical system for the simultaneous removal of microplastics and DDBAC, and explores the effects of various parameters on the removal efficiency. The optimized experimental conditions resulted in a successful removal of microplastics, DDBAC, and TOC. The results confirm the promising commercial application of this process for the removal of DDBAC-microplastics complexes in water and wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Engineering, Environmental
Nasrin Abdollahi, Gholamreza Moussavi, Stefanos Giannakis
Summary: Surface water and groundwater contamination by heavy metals is a global serious concern. Adsorption, particularly using metal-organic frameworks (MOFs), has shown potential in removing heavy metals. This review evaluates the potential of various MOFs for heavy metal removal, discusses the mechanisms involved, and compares them with existing technologies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
