Article
Materials Science, Ceramics
Maha Alhaddad, Adel A. Ismail
Summary: An affordable and novel approach to design Bi2O3-sensitized hierarchically mesoporous ZnO nanoparticles for Hg(II) reduction under visible light exposure has been achieved. The mesoporous 3% Bi2O3/ZnO heterostructure demonstrated the best photocatalytic efficiency for Hg(II) reduction, outperforming TiO2-P25 and ZnO NPs in terms of photoreduction rate and rate constant. The superior performance is attributed to the synergistic effect, visible-light harvest, large surface area, pore volume, and heterojunction design between Bi2O3 and ZnO, leading to efficient charge carrier separation and reduced recombination rate. Proposed mechanisms and kinetics for the photocatalytic reduction of Hg(II) are also discussed.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Yuping Xiang, Guangliang Liu, Yongguang Yin, Yong Cai
Summary: This study extracted and characterized extracellular polymeric substances (EPS) from periphyton in Florida Everglades to explore their role in the binding and speciation of mercury (Hg(II)). The results showed that EPS primarily consisted of proteins, polysaccharides, phospholipids, and nucleic acids, and could transform Hg(II) into colloidal and capsular EPS-bound forms. The study found that proteins and polysaccharides in EPS contributed to Hg(II) binding, with different preferred binding groups for colloidal and capsular EPS. EPS also significantly decreased the reactive Hg(II) in the aquatic environment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Juanshan Du, Kitae Kim, Dae Wi Min, Wonyong Choi
Summary: The formation of organoiodine compounds (OICs) is significantly enhanced in frozen solutions containing Fe(III) and NOM, particularly after thawing. The freeze-thaw cycle is more efficient in producing OICs compared to continuous reactions in frozen solutions. Aromatic organic compounds induce higher OIC formation yields in freeze-thaw systems.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Mousumi Deb, Shrestha Roy, Nadira Hassan, Joy Sankar Deb Roy, Narendra Nath Ghosh, Pijush Kanti Chattopadhyay, Dilip K. Maiti, Nayan Ranjan Singha
Summary: This article reports the design and synthesis of a pH- and excitation-dependent multi-light emitting macromolecular ratiometric sensor for chromo-fluorogenic sensing. The performance of the sensor was investigated using various experimental methods, and it showed low detection limits for Fe(III), Cu(II), and Hg(II). This research is of great importance for pH-responsive sensing.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Environmental
Astolfo Valero, Jiri Jan, Daniel A. A. Petrash
Summary: This study demonstrates the efficient removal of arsenite from water using a bioelectrochemical system (BES) with the help of redox reactive humic substances derivatives and reactive nitrogen species. Geobacter sp. utilizes humic derivatives as electron shuttles, facilitating the reduction of Fe(iii) and the scavenging of As(iii). These findings contribute to the development of effective BESs for arsenite removal.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Biology
Ulf Lueder, Markus Maisch, Bo Barker Jorgensen, Gregory Druschel, Caroline Schmidt, Andreas Kappler
Summary: This study compares the cultivation methods of microaerophilic Fe(II)-oxidizing microorganisms using agar-stabilized gradient tubes and liquid cultures, and utilizes Fe(II) produced by Fe(III) photoreduction as the electron donor. The results show that the growth of microaerophilic Fe(II)-oxidizing bacteria is best observed under UV light, and these bacteria contribute significantly to Fe(II) oxidation.
Article
Engineering, Environmental
Huali Yu, Guangfei Liu, Ruofei Jin, Jiti Zhou
Summary: This study investigated the catalytic degradation of sulfanilamide using goethite and HA (Gt-HA) coprecipitates with different C:Fe molar ratios. The Gt-HA system with optimal C:Fe ratio of 0.30 showed higher efficiency in degrading sulfanilamide compared to the control Gt system, with improved H2O2 activation and center dot OH production. Additionally, the study demonstrated the potential of developing Fe-C coprecipitates as efficient catalysts in Fenton-like processes.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Xin Wen, Xu Yang, Tantan Wang, Zihao Li, Chi Ma, Wenhao Chen, Yubo He, Chang Zhang
Summary: This study investigated the impact of dissolved organic matter (DOM) from different sources on Hg(II) photoreduction in paddy water. The results showed that DOM-like fraction played a more significant role than suspended particulate matter-like fraction and bacteria-like fraction in Hg(II) photoreduction. Under irradiation, all types of DOM samples enhanced Hg(II) photoreduction, with biochar DOM showing the highest efficiency. Analysis of fluorescence spectroscopy and mass spectrometry revealed that DOM with higher lignin/carboxy-rich acyclic molecules, condensed aromatics structures, and phenolic compounds could promote the formation of O-2(center dot-).
Article
Engineering, Environmental
Erdan Hu, Meichen Liu, Feng Wang, Bosheng Lv, Jun Wu
Summary: The effects of phosphate, silicate, humic acid, and calcium on the release of As(V) co-precipitated with Fe(III) and Fe(II) during aging were investigated. Silicate and humic acid caused notable release of As(V) while phosphate and calcium promoted As(V) removal efficiency. These results are important for the treatment of As(V) contaminated groundwater.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Alexandra E. P. Schellenger, Sunho Choi, Annalisa Onnis-Hayden, Philip Larese-Casanova
Summary: The study demonstrates that pyroaurite-type minerals can immobilize selenium oxyanions from water resources, with uptake efficiency influenced by the identity of interlayer anions. The uptake process involves a rapid anion exchange followed by slow release, with excess dissolved interlayer anions and high pH values exacerbating the release of selenium.
APPLIED CLAY SCIENCE
(2021)
Article
Geochemistry & Geophysics
Xiaofeng Lin, Yang Lu, Zhenqing Shi
Summary: A quantitative model was developed to study the release of Cu(II) from Fe oxides or Fe oxide-humic substance composites. The results showed that Cu(II) release rates decreased with Fe oxide aging processes, while the presence of humic substances increased Cu(II) mobility.
APPLIED GEOCHEMISTRY
(2022)
Article
Environmental Sciences
Tingting Yue, Yuankun Yang, Shu Chen, Jun Yao, Huili Liang, Liang Jia, Kaibin Fu, Zhe Wang
Summary: In this study, a novel composite of Chlorella vulgaris-supported nanoscale zero-valent iron (CV-nZVI) was reported for efficient removal of As(III) from contaminated water. The stabilization effect of C. vulgaris reduced the agglomeration of nZVI and enhanced its reactivity. The CV-nZVI showed a removal efficiency of 99.11% for As(III) at an optimal pH of 7.0, and exhibited reusability and regeneration capabilities.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Pitchaimani Veerakumar, Ganesamurthi Jaysiva, Shen-Ming Chen, King-Chuen Lin
Summary: A nanocomposite containing palladium nanoparticles embedded on bismuth sulfide nanorods was synthesized and used as an electrochemical sensor for the detection of mercuric ions. The modified electrode showed excellent sensitivity and low detection limit, and also exhibited photocatalytic activity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Xiangqin Wang, Yanhong Du, Fangbai Li, Liping Fang, Tingting Pang, Weijian Wu, Chuanping Liu, Lei Chen
Summary: A new strategy of complexing Fe(II) with organic matter (Fe-OM) was developed to regulate target gene expression responsible for Cd absorption in roots and leaves of rice plants, significantly reducing grain Cd content from 0.48 mg kg(-1) to 0.25 mg kg(-1). The downregulation of OsNramp1 and OsNramp5 in roots/stems and upregulation of OsLCT1 in leaves contributed to the mitigation of Cd accumulation in grains. This work provides a promising approach to alleviate Cd accumulation in rice grains through targeted gene regulation in specific tissues.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Ming Kong, Zhiqiang Shi, Fei Liu, Na Song, Lizhen Liu, Rongfu Li, Yongming Wu, Huacheng Xu
Summary: This study explored the toxicities of Cu2+ to Chlorella vulgaris under different environmental conditions and found that commonly occurring cations and dissolved organic matters can protect the metabolism system of C. vulgaris. The presence of extracellular polymeric substances (EPS) matrix can alleviate the biotoxicity of Cu2+.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
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)