Article
Engineering, Environmental
Sijia Liang, Shuxia Xu, Chao Wang, Jingyi Ling, Zeyu Xian, Hao Wu, Haoting Tian, Shaoda Zhou, Cheng Gu
Summary: In this study, a new photo-irradiated reductive dechlorination pathway for poly(vinyl chloride) microplastics (PVC-MPs) was described, with the presence of indole-3-acetic acid (IAA) and hexadecyltrimethylammonium bromide (CTAB) facilitating the reaction. The neutral IAA/CTAB complex enhanced the adsorption of IAA on PVC powders, leading to the release of chloride ions through a proposed dechlorination mechanism involving C-Cl bond cleavage and polyene formation. The enhanced sorption of aromatic chemicals on PVC-MP powders irradiated in the presence of IAA/CTAB was attributed to hydrophobic effects and pi-pi interactions between aromatic rings and polyene structures.
Article
Environmental Sciences
Christian Mark Garcia Salvador, Rongzhi Tang, Michael Priestley, Linjie Li, Epameinondas Tsiligiannis, Michael Le Breton, Wenfei Zhu, Limin Zeng, Hui Wang, Ying Yu, Min Hu, Song Guo, Mattias Hallquist
Summary: Nitro-aromatic compounds (NACs) were measured hourly in a rural site in China during wintertime. The study found that NACs may significantly contribute to the radiative forcing effects of atmospheric particles. Additionally, gas-phase NAC levels were highest during the daytime, and regional secondary processes played a significant role in NAC concentrations.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Medicinal
Joko Tri Wibowo, Peni Ahmadi, Siti Irma Rahmawati, Asep Bayu, Masteria Yunovilsa Putra, Anake Kijjoa
Summary: Novel secondary metabolites from marine macroorganisms and marine-derived microorganisms have been extensively studied. Indole alkaloids, as one of the most promising compounds, possess diverse biological/pharmacological activities. This review summarizes the indole alkaloids isolated from 2016 to 2021 and their relevant biological/pharmacological activities, describing a total of 186 indole alkaloids.
Article
Environmental Sciences
Junjie Wang, Zhigang Li, Shaoyang Hu, Jian Ma, Tingting Gong, Qiming Xian
Summary: This study investigated the formation of chloro-nitromethanes during chlorination and chloramination of nitro-aromatic compounds, revealing 2-nitrophenol and 3-nitrophenol as main precursors. Chlorination led to higher HNMs formation compared to chloramination, while ferric and manganese ions had different impacts on TCNM formation. Nitrite was found to significantly reduce TCNM formation, indicating different effects on TCNM formation from different precursors. Additionally, dissolved organic matter significantly influenced TCNM formation in chlorination of 2-nitrophenol, despite low TCNM formation in chlorination of DOM.
Article
Environmental Sciences
Debora Fabbri, Luca Carena, Debora Bertone, Marcello Brigante, Monica Passananti, Davide Vione
Summary: This study demonstrates the production of benzote and acetophenone by sunlight irradiation of polystyrene suspensions in water. The molecules can react with (OH)-O-center dot (Bz(-)) and (OH)-O-center dot + CO3 center dot-(AcPh) in sunlit natural waters, indicating the importance of photochemical processes in the formation and degradation of water-soluble organic compounds from plastic weathering.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Chengxu Jin, Ying Gu, Zhihui Li, Siyu Wang, Nan Wang, Yanqing Jiao, Bateer Buhe, Chungui Tian
Summary: A feasible synthesis method for 2D Co5.47N-MgO@C sheets, which exhibit excellent catalytic performance, was achieved by grinding Co salt and 2-MIM in salts followed by two-step calcination. The high-yield synthesis and dispersion of the 2D sheets were realized through the molten salt medium, showing almost 100% conversion of the added Co source into cobalt nitride.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Zhi-Yu Liang, Ren-Kun Huang, Ruo-Wen Liang, Dan-Hua Xie, Gui-Yang Yan
Summary: This study demonstrates that direct Z-scheme ZnIn2S4/WO3 photocatalysts exhibit significantly enhanced photocatalytic activities due to efficient separation of photogenerated electrons and holes. The in situ self-assembly method used for the fabrication of these heterostructured nanocomposites shows potential for practical applications.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Marjan Moradi, Nahid Rastakhiz, Mehrorang Ghaedi, Rahele Zhiani
Summary: The study investigated the performance of a copper-based nano catalyst to reduce nitro-aromatic compounds in aqueous solution. The immobilization of Cu NPs on fibrous DFNS nanospheres not only prevented their aggregation, but also considerably improved the availability of the catalytic active sites. The newly developed nanocatalyst demonstrated great catalytic activities for the reduction of nitro compounds under green conditions.
Article
Engineering, Environmental
Jie Gao, Yang Cao, Gang Luo, Jiajun Fan, James H. Clark, Shicheng Zhang
Summary: In this study, a series of Ni loaded metal phosphates catalysts were prepared for the hydrodeoxygenation of lignin-derived vanillin. It was found that Ni/ZrP catalyst showed the highest activity due to its small Ni particle size, large specific surface area, strong metal-support interaction, and optimal acidity. The synergistic effect of Ni, Lewis acid sites (LAS), and Bronsted acid sites (BAS) was proven to be important for the conversion of vanillin. Hydrogen from both H2 and isopropanol contributed to the reaction, reducing the need for external H2 supply.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Shamsunnahar Suchana, Langping Wu, Elodie Passeport
Summary: Compound-specific isotope analysis (CSIA) is a useful tool for studying the fate of legacy groundwater contaminants, but its application to nonconventional contaminants is still emerging. This study validated CSIA methods for nitro- and amino-substituted chlorobenzenes and developed a solid-phase extraction (SPE) method to minimize matrix interferences. The results showed that the SPE-CSIA procedure had negligible isotope fractionation and can be used to track the environmental fate of these contaminants.
ANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Nahal Aramesh, Bahram Yadollahi
Summary: The present study developed an impressive method to eliminate toxic nitro aromatic compounds using polyoxometalate-based composites. By integrating transition metal substituted polyoxometalates onto modified protonated graphitic carbon nitride, stable compounds were formed and used for the reduction of toxic compounds. The composite with copper substituted polyoxometalate showed the highest catalytic activity. This environmentally friendly process could be carried out in water at room temperature.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Bo Li, Yanxin Wang, Quan Chi, Ziliang Yuan, Bing Liu, Zehui Zhang
Summary: The study developed facilely prepared non-noble heterogeneous nitrogen-doped carbon supported Ni catalysts for the efficient synthesis of imines under mild conditions, showing good tolerance to other functional groups.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Environmental Sciences
S. Stoyanovich, Z. Yang, M. Hanson, B. P. Hollebone, D. M. Orihel, V Palace, J. R. Rodriguez-Gil, F. Mirnaghi, K. Shah, J. M. Blais
Summary: The physical and chemical properties of dilute bitumens can affect the environmental fate and effects of the compounds. The study found that only a small proportion of polycyclic aromatic compounds (PACs) from dilbit enters the aquatic system, but high concentrations can be found in sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Organic
Simon X. Lin, Jonathan Sperry
Summary: The synthesis of lysiformine, a bisindole alkaloid, was described. The heterocyclic framework of the natural product was assembled using iterative Suzuki coupling and reductive alkylation reactions starting from a pyridine derived from kojic acid. NMR spectroscopic analysis confirmed that the synthetic sample matched well with the natural product, highlighting the rarity of a marine natural product containing a 3-hydroxypyridine.
TETRAHEDRON LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Bo Cui, Changyuan Gao, Jiating Fan, Jinni Liu, Bin Feng, Xianghui Ruan, Yajie Yang, Ye Yuan, Kuo Chu, Zhuojun Yan, Lixin Xia
Summary: A luminescent porous aromatic framework material (LNU-23) was synthesized in this study, which exhibited excellent light and heat stability. The energy transfer technique in LNU-23 allowed for selective fluorescence quenching of nitro compounds, making it a potential candidate for outdoor fluorescence detection.
Article
Environmental Sciences
Geoff Rhodes, Ya-Hui Chuang, Raymond Hammerschmidt, Wei Zhang, Stephen A. Boyd, Hui Li
Summary: The study compared the uptake and accumulation of the antibiotic cephalexin in different vegetables, finding that the affinity and reaction with plant enzymes play important roles in the uptake and accumulation of cephalexin in vegetables.
Article
Environmental Sciences
Mengyuan Ren, Jing Zhao, Bin Wang, Hang An, Yuhuan Li, Xiaoqian Jia, Jiamei Wang, Shuo Wang, Lailai Yan, Xiaohong Liu, Bo Pan, Zhiwen Li, Rongwei Ye
Summary: This study found that lower maternal levels of zinc and iron are associated with an increased risk of preterm birth, while higher levels of zinc and iron can reduce the risk of preterm birth.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Environmental Sciences
Hao Li, Yi Liu, Feng Jiang, Xing Bai, Huijie Li, Di Lang, Lin Wang, Bo Pan
Summary: The study found that the defective structure and adsorption of PS on biochar are key factors for the activation of persulfate (PS), which can promote the generation of reactive oxygen species on biochar.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Danping Wu, Quan Chen, Min Wu, Peng Zhang, Liping He, Yihui Chen, Bo Pan
Summary: This study investigated the reactivity of pyrogenic carbon by regulating the species and content of oxygen-containing functional groups on biochar surface, and conducting batch sorption/degradation experiments for rhodamine B. The results showed that biochars produced at different temperatures had different reaction active sites, suggesting that strategies in manipulating biochar properties should be carefully considered.
Article
Environmental Sciences
Wenfeng Wang, Geoff Rhodes, Wei Zhang, Xiangyang Yu, Brian J. Teppen, Hui Li
Summary: Experimental results suggest that multivalent exchangeable cations play a significant role in the sorption and transport of PFCAs in soils, with Ca2+ and Fe3+ soils exhibiting higher sorption capacities for PFCAs compared to K+ soils.
Article
Engineering, Environmental
Jinfeng Zhao, Guofeng Shen, Lin Shi, Hao Li, Di Lang, Lu Zhang, Bo Pan, Shu Tao
Summary: Residential biomass and coal burning are important emission sources for environmentally persistent free radicals (EPFRs). This study conducted a field campaign in rural China to evaluate the presence and characteristics of EPFRs generated from residential biomass and coal burning. The results showed that EPFRs emissions from crop residues burning were significantly higher than those from firewood and coal. Fuel type was found to be the primary factor controlling EPFR discharge. Biomass burning had higher EPFRs per particle compared to coal combustion. EPFRs had stronger relationships with carbonaceous components. EPFRs from biomass burning were mainly generated during the pyrolysis of fuels, while EPFRs from coal combustion were mainly associated with refractory organic compounds.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Wenmei Tao, Peng Zhang, Hao Li, Qiliang Yang, Patryk Oleszczuk, Bo Pan
Summary: The generation mechanism of persistent free radicals (PFRs) in biochar is closely related to its chemical structure. In this study, it was found that the formation of PFRs was significantly positively correlated with the presence of C=O and aromatic C=C structures. Reduction experiments demonstrated that reducible C=O functional groups were closely associated with the PFRs in biochar.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yuanbo Li, Jonathan Brett Sallach, Wei Zhang, Stephen A. Boyd, Hui Li
Summary: It is challenging to predict the uptake of pharmaceuticals by plants from soils due to the high variability of sorption/desorption and transformation processes. This study found that the concentration of pharmaceuticals in soil pore water is strongly correlated with their accumulation in radish, suggesting that pore water is the dominant fraction bioavailable to plant uptake. Root concentration factors based on soil pore water concentration showed more consistent results compared to those based on soil concentration, indicating that pore water-based factors are better for describing pharmaceutical accumulation in plants. The findings emphasize the importance of evaluating and including pharmaceuticals in soil pore water in models for plant uptake prediction.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Zeyou Chen, Lichun Yin, Wei Zhang, Anping Peng, J. Brett Sallach, Yi Luo, Hui Li
Summary: Soil salinity can affect the bioavailability of antibiotics to bacteria, with high salinity potentially increasing the selection pressure exerted by antibiotics on bacteria.
Article
Engineering, Environmental
Bin Wang, Yiming Pang, Kexin Li, Jianjun Jiang, Yibing Zhu, Zhenjiang Li, Bo Pan, Le Zhang, Yali Zhang, Rongwei Ye, Zhiwen Li
Summary: Through a relatively large case-control study and additional population study and rat model, we found a significant positive association between maternal hair germanium concentration and the risk of neural tube defects. We also discovered that maternal germanium exposure may increase oxidative stress and the likelihood of fever or flu among pregnant women, both of which are related to NTD risk.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Construction & Building Technology
Wei Du, Jinze Wang, Yuanchen Chen, Bo Pan, Guofeng Shen, Nan Lin
Summary: The smoking ban is ineffective in some entertainment venues in China. This study investigated PM2.5 pollution caused by cigarette smoking in mahjong clubs and found that the number of smoking persons in a room is the main factor affecting PM2.5 levels. Adjacent nonsmoking rooms also experienced an increase in PM2.5 due to air penetration from smoking rooms. The results highlight the need for strict enforcement of smoking bans in entertainment venues and scientific placement of smoking areas to prevent diffusion into nonsmoking areas.
Letter
Engineering, Environmental
Yanqiu Feng, Shu Su, Weinan Lin, Mengyuan Ren, Ning Gao, Bo Pan, Le Zhang, Lei Jin, Yali Zhang, Zhiwen Li, Rongwei Ye, Aiguo Ren, Bin Wang
Summary: A nested case-control study was conducted to analyze biomarkers of external chemical exposure, lipidomics, and immunity in 30 women with SPB and 30 women without. The findings showed higher serum lipid concentration in SPB cases compared to controls, while no significant differences were observed in chemical and immune biomarkers. Random forest and extreme gradient boosting models had a prediction accuracy of over 90%. Glycerophospholipids were identified as the most abundant lipidomic features, followed by glycerolipids and sphingolipids, with FA(21:0) contributing the most to the prediction performance. Maternal exposure to various elements can contribute to SPB risk through interaction with GP metabolism.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Review
Environmental Sciences
Hui Li, Pulane Koosaletse-Mswela
Summary: This review provides an overview of the sources, sorption and transport behaviors, and remediation strategies of per- and polyfluoroalkyl substances (PFAS) in soils. Biosolids land application and aqueous firefighting foam are the major sources of PFAS contamination in soils. The sorption of PFAS by soils involves multiple interaction mechanisms, influenced by PFAS chemical structures, soil properties, and surrounding solution chemistry. Remediation techniques for PFAS-contaminated sites have limited documented information, hindering the comparison and evaluation of specific remediation technologies. Future research prospects and knowledge gaps are also identified.
CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH
(2023)
Article
Chemistry, Multidisciplinary
Di Lang, Feng Jiang, Xu Gao, Peng Yi, Yi Liu, Hao Li, Quan Chen, Bo Pan, Baoshan Xing
Summary: This study investigates the influence of metal oxide structures and degradation byproducts on the formation of EPFRs. The results show that only certain facet structures of anatase TiO2 can stabilize the formation of EPFRs. The stability of EPFRs is affected by light conditions and the presence of degradation byproducts.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Environmental Sciences
Gang Chu, Jing Zhao, Yu Zhang, Kai Sun, Xiaohong Liu, Youbin Si, Bo Pan, Christian E. W. Steinberg
Summary: Biochar is a multiphase carbonaceous structure with inherent minerals that play a crucial role in organic sorption. The study investigates the composition of minerals in biochar and their impact on the sorption behavior of BPA, demonstrating the significant role of mineral elements in enhancing sorption. The research highlights the importance of recognizing biochar minerals for understanding the sorption mechanism of phenolic compounds.