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, 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
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)
Article
Environmental Sciences
Atasheh Soleimani-Gorgani, Hussein E. Al-Hazmi, Amin Esmaeili, Sajjad Habibzadeh
Summary: Sn-doped TiO2 nanoparticles were synthesized using a sol-gel method and screen-printing pastes were prepared to evaluate their photocatalytic activity. The highest photocatalytic activity was obtained at a calcination temperature of 450 degrees C.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Somayeh Sepahvand, Mostafa Bahrami, Narges Fallah
Summary: In this study, the photocatalytic degradation of toxic substance 2,4-DNT using CoFe2O4/SiO2/TiO2 nanoparticles was successfully performed with an efficiency of 88.5% and proper catalytic activity. Hydroxyl radicals were identified as the dominant oxidizing radicals during the degradation process. The synthesized CoFe2O4/SiO2/TiO2 photocatalyst showed potential reusability and effectiveness in the degradation of 2,4-DNT.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Michael J. Tilby, Damien F. Dewez, Loic R. E. Pantaine, Adrian Hall, Carolina Martinez-Lamenca, Michael C. Willis
Summary: This study presents a late-stage functionalization strategy to convert sulfonamides into pivotal sulfonyl radical intermediates. The methodology utilizes a metal-free photocatalytic approach to access radical chemistry, enabling the combination of pharmaceutically relevant sulfonamides with an assortment of alkene fragments. The sulfinate anion can also be readily obtained, expanding the options for sulfonamide functionalization. Mechanistic studies indicate the involvement of energy-transfer catalysis (EnT).
Article
Materials Science, Multidisciplinary
Chentao Hou, Hualin Liu, Yue Jian, Jiaming Zhu
Summary: In this study, a TiO2/TiOF2/{2 2 2}Ag3PO4 composite catalyst was prepared and characterized using various analytical methods. The results showed that the composite catalyst exhibited excellent photocatalytic performance and degradation efficiency.
Article
Engineering, Environmental
Yuanyuan Shi, Xi Chen, Qianqian Wu, Haozhi Zhen, Shuang Wang, Hualin Dong, Jianzu Wang, Yuan Li
Summary: A synergistic modified PVDF composite membrane was developed by incorporating polydopamine and titanium dioxide nanoparticles. This composite membrane showed excellent treatment ability for organic wastewater due to the well dispersion of TiO2 induced by polydopamine. After UV irradiation, the composite membrane exhibited significantly increased water flux and high rejection ability for organic pollutants, making it suitable for wastewater treatment applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Harish Kuruva, Vedasri Bai Khavala, B. R. Mishra, K. Murugan, Tiju Thomas, B. S. Murty
Summary: This study focuses on the photocatalytic degradation of industrial wastewater containing organic pollutants using modified sulfate process derived-titanium dioxide (mspd-TiO2). The mspd-TiO2 demonstrated desirable efficiency in treating the industrial wastewater, degrading the pollutants and reducing the COD value. This study demonstrates the potential of mspd-TiO2 for efficient and cost-effective treatment of industrial wastewater containing complex sulfur-containing organic pollutants.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Sarah Mozzaquatro Pasini, Alexsandra Valerio, Guilin Yin, Jingfeng Wang, Selene M. A. Guelli Ulson de Souza, Dachamir Hotza, Antonio Augusto Ulson de Souza
Summary: This paper presents a review of the application of nanostructured photocatalysts in wastewater treatment, focusing on the use of titania-containing nanofibers for heterogeneous photocatalysis. Research has shown that nano-TiO2 fibers exhibit good performance in degrading dyes and organic contaminants, with good stability and recyclability.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Materials Science, Ceramics
Mohadeseh Riyaheini, Neda Gilani, Javad Vahabzadeh Pasikhani
Summary: Using photocatalytic processes for wastewater treatment is an environmentally friendly approach to address the scarcity of drinkable water. In this study, TiO2 and FeS2 nanostructures were synthesized and their activity in removing a dye pollutant was investigated. The optimized heterojunction photocatalyst achieved a degradation rate of 94%.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
S. M. Hocaoglu, A. I. Mohamad Idris, I. Basturk, R. Partal
Summary: This study examines the efficiency of Ti-hyflo, Ti-C535, and Ti-C560 diatomite-TiO2 composites prepared by the sol-gel method in degrading dye under UVc irradiation. The photocatalytic degradation experiment results reveal that Ti-C535 and Ti-C560 composites have similar performance, much higher than that of Ti-hyflo. The excellent performance of Ti-C560 and Ti-C535 composites is attributed to the formation of interfaces between diatomites and TiO2 nanoparticles, improving the photocatalytic activity.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Di Liu, Yunning Chen, Renquan Guan, Jie Zhao, Huimin Jin, Siyi Zhang, Qingkun Shang
Summary: In this study, a new heterojunction photocatalyst was prepared by self-assembly and bonding with titanium dioxide, and its photocatalytic performance and degradation products under visible light were investigated. The high photocatalytic activity of the catalyst was revealed through spectroscopy, current density, resistance, and other experiments, and its degradation ability towards different pollutants was studied.
Article
Environmental Sciences
Guy Didier Fanou, Mamadou Traore, Benjamin Kouassi Yao, Andrei Kanaev, Khay Chhor
Summary: A new composite photocatalyst was developed by grafting size-selected 5-nm titanium-oxo-alkoxo nanoparticles onto P25-TiO2 nanoparticles and incorporating HAP obtained by co-precipitation of salts. The photocatalytic yield was increased for the composite photocatalysts with the addition of HAP, likely due to a synergy between adsorption and photo-oxidation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Soulaima Chkirida, Nadia Zari, Redouane Achour, Hicham Hassoune, Adil Lachehab, Abou el Kacem Qaiss, Rachid Bouhfid
Summary: Green approaches have become a trend for solving aquatic environmental issues by satisfying the triple lines of sustainability. A new eco-friendly adsorbent with combined adsorption and photocatalytic properties was successfully designed and showed positive impact in the challenging wastewater sector. The morphology, pH-sensitive swelling behavior, and photocatalytic efficiency of the prepared beads were emphasized and validated through the removal of methylene blue from aqueous solutions.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Environmental Sciences
Maria G. Antoniou, Henrik R. Andersen
Article
Chemistry, Physical
Maria G. Antoniou, Persoulla A. Nicolaou, Jody A. Shoemaker, Armah A. de la Cruz, Dionysios D. Dionysiou
APPLIED CATALYSIS B-ENVIRONMENTAL
(2009)
Article
Chemistry, Physical
Maria G. Antoniou, Armah A. de la Cruz, Dionysios D. Dionysiou
APPLIED CATALYSIS B-ENVIRONMENTAL
(2010)
Article
Engineering, Environmental
Maria G. Antoniou, Jody A. Shoemaker, Armah A. De La Cruz, Dionysios D. Dionysiou
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2008)
Article
Engineering, Environmental
Maria G. Antoniou, Armah A. de la Cruz, Dionysios D. Dionysiou
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2010)
Article
Environmental Sciences
Maria G. Antoniou, Henrik R. Andersen
ENVIRONMENTAL TECHNOLOGY
(2012)
Article
Environmental Sciences
Maria G. Antoniou, Gerly Hey, Sergio Rodriguez Vega, Aikaterini Spiliotopoulou, Jerker Fick, Mats Tysklind, Jes la Cour Jansen, Henrik Rasmus Andersen
SCIENCE OF THE TOTAL ENVIRONMENT
(2013)
Review
Engineering, Chemical
Virender K. Sharma, Theodoros M. Triantis, Maria G. Antoniou, Xuexiang He, Miguel Pelaez, Changseok Han, Weihua Song, Kevin E. O'Shea, Armah A. de la Cruz, Triantafyllos Kaloudis, Anastasia Hiskia, Dionysios D. Dionysiou
SEPARATION AND PURIFICATION TECHNOLOGY
(2012)
Article
Pharmacology & Pharmacy
Maria G. Antoniou, Jody A. Shoemaker, Armah A. de la Cruz, Dionysios D. Dionysiou
Article
Engineering, Environmental
Kamilla M. S. Hansen, Sarah Willach, Maria G. Antoniou, Hans Mosbaek, Hans-Jorgen Albrechtsen, Henrik R. Andersen
Review
Chemistry, Analytical
Armah A. de la Cruz, Anastasia Hiskia, Triantafyllos Kaloudis, Neil Chernoff, Donna Hill, Maria G. Antoniou, Xuexiang He, Keith Loftin, Kevin O'Shea, Cen Zhao, Miguel Pelaez, Changseok Han, Trevor J. Lynch, Dionysios D. Dionysiou
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2013)
Article
Environmental Sciences
Aikaterini Spiliotopoulou, Maria G. Antoniou, Henrik R. Andersen
Summary: This study demonstrates the feasibility of using UV-absorbance and fluorescence as effective monitoring tools for ozone treatment processes in wastewater treatment plants. UV-absorbance can detect differences in ozone dosages as low as 1 mg/L, while fluorescence can be utilized for qualitative monitoring of pharmaceutical removal processes.
ENVIRONMENTAL TECHNOLOGY
(2021)
Article
Environmental Sciences
Eleni Keliri, Christia Paraskeva, Angelos Sofokleous, Assaf Sukenik, Dariusz Dziga, Ekaterina Chernova, Luc Brient, Maria G. Antoniou
Summary: Excessive nutrients leading to cyanobacterial harmful algal blooms pose risks to ecosystems and human health. Monitoring water quality parameters and testing for cyanotoxin genes are essential, but analytical confirmation is also necessary. Slow-release peroxide granules may be an alternative to liquid hydrogen peroxide for bloom control, with further research needed before field application.
ENVIRONMENTAL SCIENCES EUROPE
(2021)
Article
Oncology
Armah A. de la Cruz, Maria G. Antoniou, Anastasia Hiskia, Miguel Pelaez, Weihua Song, Kevin E. O'Shea, Xuexiang He, Dionysios D. Dionysiou
ANTI-CANCER AGENTS IN MEDICINAL CHEMISTRY
(2011)
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.