Article
Materials Science, Multidisciplinary
Yunan Chen, Qingshan Wu, Na Li, Tao Tang, Xin Xie, Cece Zhang, Yuxin Zuo
Summary: A new type of PVC material with highly efficient flame retardancy and smoke suppression was prepared by adding talc powder, hydromagnesite, and zinc borate to PVC. The results showed improved flame retardancy and mechanical properties compared to pure Sb2O3 as a flame retardant.
Article
Engineering, Manufacturing
Xian-Ling Fu, Hong-Liang Ding, Xin Wang, Lei Song, Yuan Hu
Summary: A two-dimensional layered zirconium phosphonate (ZrPP) with larger lamellar spacing distance was synthesized and dispersed well within the epoxy matrix. The 3 wt% ZrPP-EP composite showed excellent flame retardancy and promoted the formation of a dense char layer, resulting in improved tensile and impact strength.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Bingtao Wang, Yu Zhang, Juan Li, Zhengping Fang, Zhenghong Guo, Shiya Ran
Summary: In this study, a flame retardant containing sulfonate and phosphazene moieties (HSPP) was synthesized and applied to PC to improve flame retardancy properties without sacrificing transparency. The results showed that a low loading of HSPP (0.04wt%) could significantly improve the flame retardancy of PC, achieving a 30.4% increase in LOI, V-0 rating in UL-94, 25% reduction in THR, and 45% reduction in COY in the cone calorimetry test. The flame retardancy mechanism was attributed to the synergistic carbonization of sulfonates and phosphazene moieties from HSPP and the enhanced barrier effect of PC residual char layer with high graphitization and integrity quality. The transparency and mechanical properties of the PC composite were well maintained due to the low-loading of HSPP.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Polymer Science
Yuanmeng Lou, Yanyue Su, Yiheng Ma, Yunhong Jiao, Jianzhong Xu, Haiyun Ma
Summary: In this study, a novel flame retardant was synthesized by modifying bioactive glass, which showed improved flame retardancy properties and mechanical properties. The presence of multiple flame-retardant atoms in the modified glass led to enhanced overall performance.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Li Dang, Zhihui Lv, Xin Liu
Summary: The addition of 1 phr of ZB in polypropylene composites effectively improves flame retardancy and slows down the burning rate, resulting in reduced smoke production. The formation of a compact and graphitized char residue by ZB hinders heat diffusion and oxygen transmission, suppressing the combustion mechanism in the gas phase.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Chang Liu, Ping Li, Ying-Jun Xu, Yun Liu, Ping Zhu, Yu-Zhong Wang
Summary: Iron alginate, a bio-based material, was used to improve the fire safety of epoxy resin. The addition of iron alginate reduced the heat release rate and smoke production, while maintaining the mechanical properties of the resin.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Engineering, Manufacturing
Wenhao Yang, Jing Liang, Shuilai Qiu, Yifan Zhou, Bin Zou, Jingwen Wang, Lei Song, Yuan Hu
Summary: This study prepares functional BP nanosheets by combining the smoke suppression mechanism and oxidation resistance mechanism, which effectively enhances the fire safety. It provides a new approach for the preparation of high-performance epoxy composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Polymer Science
Ziqin Huang, Fangli Li, Changjiang Liu, Meini Yang, Bingchan Pan, Wenhui Rao, Yuan Lei, Chuanbai Yu
Summary: Enhancing the flame retardancy of polymers while minimizing the impact on their mechanical and thermal performances is challenging. This study successfully synthesized a phosphorus/nitrogen-containing silane compound (D) and grafted it onto the surface of graphene to obtain a nano hybrid flame retardant (D-GR). The D-GR/EP composites showed good flame resistance and maintained their mechanical performance, thanks to the synergistic effect of phosphorus/nitrogen-containing silane compound and graphene. This study provides a simple method for synthesizing halogen-free flame-retardant epoxy composites with superior performances, complying with green and environmental protection standards.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Manufacturing
Xueming Sun, Zhiwei Li, Oisik Das, Mikael S. Hedenqvist
Summary: In order to enhance the flame retardancy and smoke suppression of epoxy resin (EP), a novel inorganic-organic nanocomposite flame retardant, zinc ferrite@polyphosphazene (ZF@PZS) was developed. The combination of inorganic zinc ferrite and organic polyphosphazene improved the compatibility and flame retardant performance. The synergistic effects of ZF@PZS showed excellent flame retardant and smoke suppression properties in the EP matrix. Compared to neat EP, the EP with 5 phr ZF@PZS exhibited higher limiting oxygen index, lower heat release rate, smoke production rate, and carbon monoxide production. Furthermore, the addition of ZF@PZS resulted in the generation of denser, more stable, and rigid residues, leading to improved flame retardancy.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Polymer Science
Feiyue Wang, Jiahao Liao, Miaotian Long, Long Yan, Mengtao Cai
Summary: A unique hybridized intumescent flame retardant named reduced-graphene-oxide-modified ammonium polyphosphate (RGO-APP) was successfully synthesized and applied in epoxy resin (EP) for flame retardancy reinforcement. RGO-APP significantly reduces heat release and smoke production from EP, enhances fire safety, and improves tensile strength and elastic modulus of EP. This work provides a new strategy for the modification of ammonium polyphosphate, facilitating its application in polymeric materials.
Article
Engineering, Environmental
Yiheng Ma, Yuanmeng Lou, Hong Zhang, Le Yang, Danqi Yang, Jianzhong Xu, Haiyun Ma
Summary: A novel core-shell organic-inorganic hybrid nanowires were designed and synthesized to enhance the fire safety of epoxy resin. The addition of these nanowires significantly increased the limited oxide index (LOI) and improved the combustion performance, smoke suppression, and mechanical strength of the epoxy resin.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Kai Ning, Lin-Lin Zhou, Bin Zhao
Summary: This study successfully prepared a novel aminothiazole-based cyclotriphosphazene derivative, which was added as a flame retardant in epoxy resin, effectively reducing the fire hazards. The retardant altered the thermal decomposition properties and dynamic thermomechanical behaviors of EP, and achieved good flame retardant effects in fire testing.
POLYMER DEGRADATION AND STABILITY
(2021)
Article
Polymer Science
Xianting Wang, Hongyi Tu, Haofeng Xiao, Junyi Lu, Jie Xu, Guangxin Gu
Summary: A novel P-N flame-retardant (PON) was synthesized using diphenyl phosphoryl chloride and piperazine. The thermal stability, combustion behavior, and flame retardancy of PS composites containing PON and different char-forming agents were investigated. The PS/10% PON/10% EG composite exhibited the highest LOI value of 25.8% and significantly reduced pHRR, THR, and TSP compared to neat PS, demonstrating excellent flame retardancy. The flame-retardant mechanism of the composite was discussed based on SEM, TG-IR, and PY-GC/MS analysis.
Article
Engineering, Manufacturing
Jia-Yan Zhang, Hai-Bo Zhao, Ai-Ning Zhang, Jin-Bo Cheng, Shu-Liang Li, Wei Zhao, Teng Fu, Ze-Yong Zhao, Yu-Zhong Wang
Summary: In this study, a environmentally friendly and simple flame-retardant nanocoating for flexible polyurethane foam (FPUF) is demonstrated. The nanocoating effectively suppresses smoke and toxic gas release in fire. It reduces peak heat release rate, smoke density, and production of toxic gases, showing excellent extinguishing performance.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Environmental
Jie Tao, Feihao Yang, Tao Wu, Junjiao Shi, Hai -Bo Zhao, Wenhui Rao
Summary: By incorporating a P/Cu-hybrid silica aerogel, we propose a new approach for thermal insulation, flame retardancy, smoke suppression, and reinforcement of polyurethane foams. The hybrid aerogel combines the carbon-promoting action of P, catalytic attenuation of Cu, and the barrier effect of aerogels, resulting in high smoke-suppressing and flame-retardant efficiency. The aerogel-containing composite foam exhibits a special hierarchical porous structure, which enables lower thermal conductivity and higher thermal insulation than pure RPUF.
CHEMICAL ENGINEERING JOURNAL
(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)