Review
Chemistry, Multidisciplinary
Jiaqi Shi, Jinlin Jiang, Qiang Chen, Lei Wang, Kainan Nian, Tao Long
Summary: Incomplete degradation of organic pollutants could result in increased environmental risk due to the creation of potentially toxic intermediates. However, the changes in toxicity during chemical oxidation are still unclear due to various factors. This review summarizes and evaluates commonly used toxicity test and prediction methods during oxidation processes, as well as proposes potential toxic intermediates and their pathways for different pollutants. Strategies to reduce residual toxicity include strengthening the reaction and coupling multiple technologies.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Wei Guo, Yao Qin, Cheng Liu, Binbin Guo, Junhua Zou, Zenghong Xie, Ling Wu
Summary: This study introduces a rapid and effective method for photocatalytic dechlorination of PCB77 using highly dispersed Pd nanoclusters loaded two-dimensional TiO2(B) nanosheets under visible light irradiation, achieving a dechlorination efficiency of 100%. It demonstrates that the dechlorination of PCB77 is a stepwise process, with chlorines at the para positions being more susceptible than those at the meta positions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Minaam Hussaini, Muhammad Vohra
Summary: The use of a photocatalysis-cum-adsorption system based on LDH-TiO2 showed promising results in removing aqueous phase selenocyanate, with high selenium removal efficiency achieved through optimization exercises.
Article
Chemistry, Multidisciplinary
Kristina Tolic Cop, Dragana Mutavdzic Pavlovic, Tatjana Gazivoda Kraljevic
Summary: Photocatalysis is effective in removing small molecules like anticancer drugs, with faster kinetic rates found at pH 5 and lower drug concentrations. However, the efficiency of photocatalysis can be reduced by the addition of inorganic salts and organic compounds. The degradation mechanism of the drugs involves hydroxyl radicals and singlet oxygen, with potential toxicity of newly formed products needing further study.
Article
Engineering, Environmental
Bo Liu, Bing Chen, Baiyu Zhang, Xing Song, Ganning Zeng, Kenneth Lee
Summary: The study found that ozone can enhance oxidation rates and remove hazardous substances containing PAHs in OPW; TNA exhibits strong photocatalytic capability; UV-LED can enhance the effectiveness of ozone and TNA, however, iodide may affect the oxidation of PAHs. The final recommendation is to treat OPW through sequential oxidation using ozone and the UV-LED/TNA/ozone system.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Luminita Andronic, Alina Vladescu, Alexandru Enesca
Summary: This study investigated the synthesis, characterization, and photocatalytic activity of TiO2 on the degradation of imidacloprid, as well as the toxicity of TiO2 nanoparticles and imidacloprid on green algae. It was found that TiO2 had low toxicity to the algae, while imidacloprid showed high toxicity levels in low concentrations in an aquatic environment over a long period of time.
Article
Engineering, Environmental
Yu Tian, Qian Liu, Shanshan Lin, Xiaoxia Liang, Sara Khan, Xia Yang, Xianze Wang
Summary: The magnetic CuFe2O4/MIL-101(Fe)(CFO/MIL) composite prepared by solvothermal method exhibited high degradation efficiency of 95.0% for organophosphorus pesticide chlorpyrifos (CP) after 60 minutes of simulated sunlight irradiation. The composite also showed excellent stability and 75.7% CP removal efficiency after four cycles of magnetic recovery. The Z-scheme reaction mechanism and deep removal of organophosphorus pollutants were achieved by CFO/MIL.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Guru Karthikeyan Thirunavukkarasu, Jana Bacova, Olivier Monfort, Ewa Dworniczek, Emil Paluch, Muhammad Bilal Hanif, Sajid Rauf, Monika Motlochova, Jan Capek, Karol Hensel, Gustav Plesch, Grzegorz Chodaczek, Tomas Rousar, Martin Motola
Summary: This study compared two TiO2 nanopowders in terms of toxicity, photoinduced antimicrobial and antibiofilm properties, and photocatalytic activity. TiAP showed higher efficiency in photocatalysis and bacterial inactivation compared to P25.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Jie Song, Lijun Chen, Zhiqiang Wei, Yuhua Niu, Xiaoli Zhu
Summary: Photocatalytic degradation combined with adsorption removal is an effective method for removing tetracycline hydrochloride (TCH). A P-(CM-beta-CD/HPCS/KHA)@AC/TiO2 composite material was prepared and showed a high removal rate of TCH. The adsorption and photocatalytic degradation processes followed quasi-second-order and quasi-first-order models respectively, and the detoxification effect was confirmed through toxicity testing.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Materials Science, Ceramics
Yingguan Xiao, Jiajing Wu, Huiquan Li, Xiang Liu, Qian Li, Ying Zhang, Shunsheng Cao
Summary: In this study, a hollow photocatalyst consisting of anatase and rutile phases (A/R-TiO2) was prepared by in-situ growth of rutile TiO2 on anatase TiO2 hollow microspheres through heat treatment. The A/R-TiO2 hollow photocatalyst exhibited significantly enhanced charge separation efficiency, leading to superior performance in the degradation of pesticide pollutants compared to commercial TiO2 (P25). This structural design provides an effective method for constructing TiO2-based photocatalysts with advanced performance.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Xianbo Sun, Weiyu He, Tao Yang, Haodong Ji, Wen Liu, Juying Lei, Yongdi Liu, Zhengqing Cai
Summary: The highly solar active nanocomposite with a sheet-like WO3 skeleton loaded with TiO2 and CQDs showed significantly enhanced photocatalytic activity for antibiotic degradation. The improved charge separation, primarily attributed to the TiO2/WO3 heterojunction and conjugated CQDs, played a key role in the enhanced efficiency. This new composite material has great potential for degrading emerging contaminants in water.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Tehmina Akhtar, Habib Nasir, Effat Sitara, Syeda Aqsa Batool Bukhari, Sharif Ullah, Rana Muhammad Arslan Iqbal
Summary: Cu-doped TiO2 photocatalyst was prepared by sol-gel method and characterized by various techniques. The catalyst demonstrated efficient degradation of NB under visible light and showed good stability for reusability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Terrence S. Malatjie, Tarryn L. Botha, Alex T. Kuvarega, Ntakadzeni Madima, Karin de Bruyn, Memory Tekere, Thabo T. Nkambule, Bhekie B. Mamba, Titus A. M. Msagati
Summary: A wide range of semiconductor-assisted photocatalytic nanomaterials are being investigated as potential photocatalysts in water treatment. The use of nanocomposites composed of nano-TiO2 and MWCNTs is increasing due to their enhanced photocatalytic efficiency. However, the potential risks of these nanosystems in aquatic systems are not well understood. In this study, the toxic effects of TiO2/MWCNT-CNF nanocomposite on freshwater microalgae were assessed. The nanocomposite showed enhanced dye removal performance but also caused algal growth inhibition and sublethal oxidative stress effects. These findings contribute to a better understanding of the potential hazards of nanocomposites in wastewater treatment.
Article
Environmental Sciences
Nahid Sandikly, Mounir Kassir, Mouhieddine El Jamal, Hosni Takache, Philippe Arnoux, Samia Mokh, Mohammad Al-Iskandarani, Thibault Roques-Carmes
Summary: This paper investigates the residual toxicity of waters after photocatalysis treatments, finding that water treated with PANI/TiO2 at pH 12 is the least toxic to algae cells, while water processed by bare titania at acidic pH displays significant toxicity towards algae cells larger than that of the original SQX solution.
ENVIRONMENTAL TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Fusheng Li, Shuangjie Lin, Yuqing Chen, Caizhe Shi, Huaipu Yan, Chenchen Li, Chao Wu, Luqing Lin, Chunying Duan, Lei Shi
Summary: This study reports a novel photocatalytic strategy for the generation of pi-allyltitanium complexes, allowing for the rapid access to valuable homoallylic alcohols through a three-component allylation reaction with 1,3-butadiene and carbonyls. The exceptional regio- and diastereoselectivity provided by dual photoredox/Ti catalysis is comparable to that of the Cr-catalyzed Nozaki-Hiyama-Kishi allylation reaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Environmental Sciences
Christina Nannou, Anna Ofrydopoulou, Eleni Evgenidou, David Heath, Ester Heath, Dimitra Lambropoulou
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
D. Papaioannou, P. H. Koukoulakis, M. Papageorgiou, D. A. Lambropoulou, I. K. Kalavrouziotis
Article
Environmental Sciences
Efthalia Kogianni, Athanasios Kouras, Constantini Samara
Summary: This study measured PM2.5 and water-soluble heavy metal concentrations in indoor air of workplaces in Alexandroupolis, Northeastern Greece, finding significant variances in PM2.5 concentrations and water-soluble metal concentrations among the different workplaces. The study also calculated cancer and non-cancer risks associated with inhalation of water-soluble and labile metal fractions bound to indoor PM2.5.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Athanasios Besis, Iraklis Latsios, Eleni Papakosta, Theodoros Simeonidis, Athanasios Kouras, Aristeidis Voliotis, Constantini Samara
Summary: A yearlong study conducted in the northwestern district of Thessaloniki, Greece, focused on odor-active VOCs, measuring 55 odorous compounds and analyzing their spatial and temporal variations. Concentrations were compared with other urban sites in Thessaloniki, while correlations with meteorological conditions were investigated. Bivariate polar plots were constructed for source localization based on concentrations of specific compounds in relation to wind speed and wind direction.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Pharmacology & Pharmacy
Maria Lazaridou, Evi Christodoulou, Maria Nerantzaki, Margaritis Kostoglou, Dimitra A. Lambropoulou, Angeliki Katsarou, Kostas Pantopoulos, Dimitrios N. Bikiaris
Article
Environmental Sciences
Konstadina Karageorgou, Evangelia Manoli, Athanasios Kouras, Constantini Samara
Summary: This study investigates the exposure of commuters to polycyclic aromatic hydrocarbons (PAHs) under different commuting modes in Thessaloniki, Greece. It was found that cyclists had the highest exposure during the warm season and the lowest exposure during the cold season, while exposure levels for bus passengers and car passengers were similar in both seasons. The study also assessed the carcinogenic and mutagenic potencies of the exposure PAH concentrations and estimated the inhalation cancer risk associated with PAHs, providing relevant information for transportation decision-making and increasing environmental awareness for urban commuting.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Constantini Samara, Vasilios Melfos, Athanasios Kouras, Eirini Karali, Georgia Zacharopoulou, Maria Kyranoudi, Lambrini Papadopoulou, Eleni Pavlidou
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Christina Kosma, Margarita G. Kapsi, Panagiotis-Spyridon G. Konstas, Epameinondas P. Trantopoulos, Vasiliki Boti, Ioannis K. Konstantinou, Triantafyllos A. Albanis
ENVIRONMENTAL RESEARCH
(2020)
Review
Environmental Sciences
Maria Antonopoulou, Christina Kosma, Triantafyllos Albanis, Ioannis Konstantinou
Summary: Pharmaceutical Active Compounds (PhACs) have been considered emerging contaminants due to their continuous release and persistent presence in aquatic environments. Research has shown the occurrence of PhACs in wastewater treatment plant influents, hospital effluents, and surface waters worldwide. Homogeneous and heterogeneous photocatalytic applications have been extensively studied for the removal of PhACs, with consideration of their efficiency, operational costs, and potential combination with other processes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biochemical Research Methods
Aggeliki G. Kalogeropoulou, Christina I. Kosma, Triantafyllos A. Albanis
Summary: A rapid and sensitive method for detecting pharmaceutically active compounds in sea bream was developed, with high linearity and recoveries. The method was applied to sea bream samples from a Mediterranean aquaculture farm, revealing a low concentration of the antibiotic trimethoprim with negligible human health risk.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Applied
Christina Kosma, Ourania L. Koloka, Triantafyllos A. Albanis, Ioannis K. Konstantinou
Summary: A sensitive and rapid method for the determination of multiclass pesticides in white and red wines was developed using QuEChERS extraction procedure and UHPLC-Orbitrap-MS. The method was optimized to improve recoveries and reduce co-extractives, and successfully applied to real samples, revealing relatively low levels of two selected fungicides.
Article
Chemistry, Physical
Neda Malesic-Eleftheriadou, Dimitrios G. Trikkaliotis, Eleni Evgenidou, George Z. Kyzas, Dimitrios N. Bikiaris, Dimitra A. Lambropoulou
Summary: The study focused on the synthesis, characterization, and application of new bio-based chitosan derivatives for the adsorption removal of pharmaceutical mixtures from aqueous matrices. Six chitosan/polyvinyl alcohol materials with varying concentrations of graphene oxide and reduced graphene oxide were synthesized. The composites with the highest concentration of GO and rGO showed the highest adsorption capacity, while valsartan and diclofenac exhibited the highest removal efficiency. The Langmuir model provided a better fit for the experimental data, and the adsorption capacity increased with temperature.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Analytical
Lorenzo Martello, Nina Maria Ainali, Dimitrios N. Bikiaris, Dimitra A. Lambropoulou
Summary: In this study, novel molecularly imprinted polymers (MIPs) were synthesized using penconazole as the template and various combinations of functional monomers and cross-linkers. The MIPs showed higher affinity for triazole pesticides in apple juice compared to non-imprinted polymers. The developed MIP-d-SPE-LC-MS method exhibited excellent selectivity and good performance for the enrichment and determination of triazole compounds in apple juice and river water samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Engineering, Environmental
Eleni Evgenidou, Nina Maria Ainali, Androniki Rapti, Rizos D. Bikiaris, Christina Nannou, Dimitra A. Lambropoulou
Summary: This study describes the synthesis and characterization of three different PET/TiO2 photocatalytic beads, as well as their application in the photocatalytic degradation of the anticonvulsant drug pregabalin (PGB). Among the different composites, PET/TiO2 beads with 30 wt% TiO2 filler demonstrated the highest efficiency, achieving almost complete degradation of PGB within 6 hours. The stability and reuse of the synthesized catalysts were also evaluated.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Lazaros Papadopoulos, Alexandra Zamboulis, Nejib Kasmi, Mohamed Wahbi, Christina Nannou, Dimitra A. Lambropoulou, Margaritis Kostoglou, George Z. Papageorgiou, Dimitrios N. Bikiaris
Summary: The study investigated the polymerization of high-purity FDCA with EG using two different antimony catalysts via the traditional two-step polycondensation method. Various characterization techniques were employed to monitor each step, with LC-HRMS used for the first time to precisely identify PEF oligomers formed during the esterification step, alongside theoretical studies modeling the kinetics of PEF polymerization during both esterification and polycondensation stages.
