Article
Polymer Science
Olya Stoilova, Nevena Manolova, Iliya Rashkov
Summary: The electrospinning technique was successfully used for the fabrication of PMMA fibers loaded with TiO2, allowing for tailored designs and properties by adjusting material ratios and processing conditions. Incorporating TiO2 affected the morphology and properties of the composites, with the inorganic photocatalyst influencing surface characteristics. Moreover, the PMMA/TiO2 composites exhibited promising photocatalytic efficiency for future water treatment membrane applications.
Article
Biochemistry & Molecular Biology
Mairis Iesalnieks, Raivis Eglitis, Talis Juhna, Krisjanis Smits, Andris Sutka
Summary: This study successfully prepared a transparent titanium dioxide coating on plastic substrates and demonstrated its high performance in photocatalytic degradation of organic pollutants. The coating can be applied to polymer substrates and exhibits good stability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Niklas Huber, Masis Sirim, Zhuangfei Qian, Calum T. J. Ferguson, Wenxin Wei, Kai A. I. Zhang
Summary: The use of polymeric photocatalytic materials for the visible light driven conversion of organic substances in environmentally friendly reaction media, especially in water, has attracted much attention recently. However, most current conjugated polymer photocatalysts are not suitable for applications in water due to their hydrophobic nature. In this study, water-compatible poly(methyl methacrylate) (PMMA)-based polymer photocatalysts were designed by controlling the comonomers with specific functions. The properties and water compatibility of PMMA photocatalysts could be tuned by the monomer composition. The photocatalytic degradation of various contaminants in water was successfully conducted using the PMMA photocatalysts.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Yawei Yang, Riyao Wang, Zhongji Han, Rui Wang, Jiancheng He, Chengyu Zhang, Wenxiu Que
Summary: Semiconductor photocatalysis using TiO2 nanomaterials has shown promise in the degradation of micropollutants for environmental remediation. In this study, a scalable and refreshable photocatalytic foam was successfully fabricated by immobilizing TiO2 catalyst nanoparticles on EVA foam. The fabricated foam demonstrated excellent photocatalytic activity, stability, and refreshability for in-situ micropollutant degradation.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Polymer Science
Iryna Kovinchuk, Nadiia Haiuk, Giuseppe Lazzara, Giuseppe Cavallaro, Georgii Sokolsky
Summary: The photocatalytic degradation of low-density polyethylene (PE) films with titanium and manganese dioxide nanoparticles was investigated. Composite PE films with different photocatalysts were prepared and subjected to UV irradiation. Tests and measurements on the PE films were conducted to evaluate the effects of the nanoparticles on the degradation and thermal behavior of PE. The results showed the coupling effects of titanium and manganese dioxide nanoparticles on PE degradation, and the influence of the nanoparticles on the tensile properties and wettability of the films.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Environmental Sciences
Jiatao Dang, Wenjun Pei, Fumeng Hu, Zaihui Yu, Shuheng Zhao, Jianjun Hu, Jiuli Liu, Dongliang Zhang, Zhixuan Jing, Xuan Lei
Summary: This study investigated the photocatalytic degradation of sulfamethoxazole (SMX) using a TiO2/BC composite. The results showed that TiO2/BC-5-300 exhibited the highest degradation efficiency for SMX, reducing its impact on the growth of bean sprouts. This study provides important data and theoretical support for the treatment of antibiotic-contaminated wastewater using TiO2/BC.
Article
Chemistry, Analytical
Ozcan Koysuren, H. Nagehan Koysuren
Summary: This study synthesized pure polyaniline and polyaniline/titanium dioxide composites, and found that the solid-phase photocatalytic degradation of the pure polymer was enhanced with the loading of TiO2 nanoparticles. The structural and morphological properties of the prepared samples were characterized using various techniques.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Polymer Science
Ming-Hung Tsai, Hao Ouyang, Fuqian Yang, Mao-Kuo Wei, Sanboh Lee
Summary: Understanding the structural degradation of polymers and polymer-based materials is crucial for improving the reliability and lifespan of associated structures and systems. In this study, we investigated the effect of UV irradiation on the physical aging of PLA and PMMA blends using differential scanning calorimetry. The results revealed the thermodynamic and kinetic contributions to the aging process and the decrease in enthalpy loss and activation energy with increasing UV irradiation dose.
Article
Polymer Science
Ryota Tanaka, Amato Igarashi, Taihei Hayashi, Hiroyasu Masunaga, Hideaki Takagi, Nobutaka Shimizu, Noriyuki Igarashi, Shinichi Sakurai, Hiroaki Imoto, Kensuke Naka
Summary: This study investigates the effects of branched polymer chains and corresponding scaffolds with directional functional groups on the thermal and mechanical properties of polymers. By converting the three silanol groups of IC-POSS into hydrosilanes and reacting them with allyl-terminated poly(methyl methacrylate), polymers with directional branched structures can be obtained. The experimental results show that the hardness and mechanical properties of polymers with directional branched structures are significantly improved.
Article
Polymer Science
Ryota Tanaka, Amato Igarashi, Taihei Hayashi, Hiroyasu Masunaga, Hideaki Takagi, Nobutaka Shimizu, Noriyuki Igarashi, Shinichi Sakurai, Hiroaki Imoto, Kensuke Naka
Summary: The study demonstrates that branched polymers with directional polymer chains exhibit advantages in terms of hardness and mechanical properties. By introducing directional functional groups into three-dimensional structures, the properties of the polymers can be altered.
Article
Materials Science, Multidisciplinary
Talaat A. Hameed, F. Mohamed, Salwa L. Abd-El-Messieh, A. A. Ward
Summary: This study synthesized (MAPbI(3))/PMMA nanocomposites and investigated their structure, optical, morphological, and electrical properties. The results showed that the nanocomposites exhibited promising photocatalytic activity and antistatic behavior.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Polymer Science
A. D. Berdie, A. A. Berdie, S. Jitian
Summary: The study shows that the main degradation processes of PMMA films on metal mirrors involve the random homolytic breakdown of carbon-carbon bonds and the photolysis of lateral methyl groups and esters to form free radicals under heat treatment, UV, or gamma irradiation. The reflection-absorption spectra analysis confirms the mechanism of PMMA film degradation under various destructive conditions.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Nazeeha S. Alkayal, Hanan Altowairki, Abeer M. Alosaimi, Mahmoud A. Hussein
Summary: Novel nanocomposites of m-phenylenediamine poly (methyl methacrylate)/tin(IV) oxide were synthesized and applied for the degradation of methylene blue dye under UV light. The nanocomposites showed excellent degradation efficiency, particularly those loaded with 2% and 5% SnO2 nanoparticles, making them promising catalysts for treating polluted water.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Polymer Science
Jun Zhong, Xinyue Zhang, Xiaofeng Yu, Xuanyu Shi, Shihao Sun, Li Yang, Min Zuo, Yihu Song, Qiang Zheng
Summary: The selective distribution of silica nanoparticles grafted with crosslinked PMMA in PMMA/SAN blend was studied. Highly crosslinked PMMA chains mainly located in the PMMA-rich domains, while linear PMMA chains mainly located at the blend matrix interface. NPs grafted with slightly crosslinked chains were partially located at the interface and partially in the PMMA-rich domains. The deviation between theoretical prediction and actual location of modified NPs may be related to the heterogeneity of miniemulsion polymerization. The different locations of modified NPs induced by different grafted chain structures can result in various compatibilization effects on PMMA/SAN blend.
Article
Materials Science, Multidisciplinary
Po-Ying Huang, Yulin Zhang, Hao Ouyang, Fuqian Yang, Sanboh Lee
Summary: The study investigated the photo-stability of polylactide-poly(methyl methacrylate) blends after UV irradiation. It was found that UV irradiation decreases the crystallization temperature of PLA and demonstrates the interaction between the materials. The combination effect of UV irradiation and the interaction between PLA and PMMA determines the photo-stability of the blends.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)