Article
Materials Science, Multidisciplinary
Sanjaya Brahma, P. C. Huang, B. W. Mwakikunga, V. Saasa, A. A. Akande, Jow-Lay Huang, Chuan-Pu Liu
Summary: This study demonstrates the gas sensing properties of Cd-doped ZnO nanorods at room temperature and low temperature. The Cd doping in ZnO nanorods enhances the overall sensitivity to NH3 gas, with the highest sensitivity observed at a Cd doping concentration of 0.5 at %. The sensitivity continues to increase with the increase of temperature, indicating a significant enhancement of gas sensing performance at high temperature. Cd-doped ZnO nanorods also exhibit superior specificity for detecting NH3 over other gases such as NO2 and H2S at room temperature.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Analytical
Jinyu Huang, Dongting Jiang, Jiaxi Zhou, Jiexiong Ye, Yiling Sun, Xuejin Li, Youfu Geng, Jiaqi Wang, Yu Du, Zhengfang Qian
Summary: This study synthesized CuPc-loaded ZnO nanorods using a one-step microwave-assisted hydrothermal approach and characterized the products using various techniques. The CuPc/ZnO sensor showed excellent sensitivity and selectivity towards ammonia under light illumination, with a low detection limit of 0.8 ppm under red light.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Applied
Mingshuai Yuan, Wei Xu, Wukun Zhang, Jianhao Zhao, Huizi Li, Qingguo He, Wei Huang, Jiangong Cheng, Yanyan Fu
Summary: Fluorescent film sensors are widely used for detecting toxic gases, but the design and synthesis of high-performance sensitive materials are complex. This study demonstrates that the sensing performance of fluorescent sensors can be enhanced by simply growing or depositing zinc oxide film on a quartz substrate. The catalytic properties of the zinc oxide buffer effectively accelerate the sensing process between the probe molecules and H2O2 gas.
Article
Materials Science, Ceramics
Maryam Bonyani, Seyed Mojtaba Zebarjad, Kamal Janghorban, Jin-Young Kim, Hyoun Woo Kim, Sang Sub Kim
Summary: Composite nanofibers of ZnO-PANI were synthesized for NO2 gas sensing. The addition of different weight percentages of PANI to electrospun ZnO nanofibers was explored. The composites showed good thermal, structural, chemical, and morphological properties. The sensor with 25 wt % PANI exhibited the best response to NO2 gas at 300 degrees C, showing great potential for NO2 gas sensing.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Ruyi Yang, Jinniu Zhang, Jia Liu, Gang Li, Yu Qiao, Xinyi Zhang, Jianzhi Gao, Hongbing Lu
Summary: This study constructed a flexible sensor based on mesh PANI/Ti3C2Tx composite nanofibers, which exhibited excellent performance in NH3 sensing response and flexible bending stability. The improved sensing properties can be attributed to the formation of Schottky junctions between PANI and Ti3C2Tx nanosheets, improved protonation degree of PANI, and the special three-dimensional mesh fiber structure.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Electrical & Electronic
Yunjing Zhu, Yunlei Ma, Dandan Wu, Guojian Jiang
Summary: In this study, ZnO/Ti3C2Tx composites with different proportions of Ti3C2Tx were synthesized using the hydro-thermal method. The effects of MXene content on the gas sensing properties of the composites were investigated, and it was found that the few-layer MXene solution exhibited better dispersion and gas sensing properties for ZnO.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Nanoscience & Nanotechnology
Soobin Kim, Juyun Lee, Sehyun Doo, Yun Chan Kang, Chong Min Koo, Seon Joon Kim
Summary: MXenes are promising materials for functional transparent thin films due to their high conductivity, transparency, and two-dimensional morphology. Intercalation of metal ions into MXene films through a spontaneous self-assembly method enhances film properties and device performance, with potential applications in gas sensing.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Xu Gao, Xufeng Xue, Fanbing Hu, Chao Zhang, Lina Cheng, Yong Liang, Wen Wang
Summary: A high-sensitive wireless and passive surface acoustic wave (SAW) humidity sensor operating at 433 MHz was developed. The sensitivity was achieved by employing SiO2 thin film as the humidity sensitive interface and using plasma-enhanced chemical vapor deposition (PECVD) for chip fabrication. The wireless measurement system with frequency-stepped continuous-wave (FSCW) and planar dipole antennas yielded a high humidity sensitivity of 11.8% RH in the measurement range of 45%-90% RH at a wireless distance of 0.5 m, with response and recovery times of 60 and 90 s, respectively. Excellent repeatability and stability in humidity sensing were also observed.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ziang Li, Changquan Li, Junfei Ou, Xinzuo Fang, Mengqi Cong, Chen Wang, Feifei Mao, Tianci Mao, Alidad Amirfazli
Summary: By mixing modified nanoparticles with silica sol and using a spraying process, a superhydrophobic coating with excellent waterproof and mildew resistance properties was prepared on the surface of a printed circuit board. The coating showed a high contact angle, low sliding angle, good resistance to acid and alkali corrosion, NaCl, self-cleaning performance, and antimildew performance.
Article
Chemistry, Analytical
Zhen Jiang, Jinbo Zhao, Xingyu Yao, Jiurong Liu, Fenglong Wang, Lili Wu, Haixiang Song, Zhou Wang, Zhihui Zeng
Summary: In this paper, Ni0.9Zn0.1O/ZnO composite fibers were prepared using a combined approach of electrospinning and hydrothermal method for enhanced H2S gas sensing performance. The nanosheets structure of the composite fibers, as well as the proper energy band structure alignment between Ni0.9Zn0.1O and ZnO, have improved its gas sensing performance.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Polymer Science
Dongzi Yang, Guan Sheng, Jie Lu, Xiaoling Tong, Shuo Li, Xingyu Jiang, Liang Zhang, Jinrong Luo, Yanyan Shao, Zhou Xia, Lizhen Huang, Lifeng Chi, Yuanlong Shao
Summary: Recently, 2D conducting polymer thin films have gained attention for their ability to combine molecular aggregate ordering and in-plane charge transport. This study successfully developed wafer-size polyaniline and tetra-aniline thin films with customized surface morphology and crystallinity through controlled interfacial synthesis. The optimized polyaniline thin film exhibited an ultraflat surface and clear crystalline domains, while also demonstrating impressive ammonia sensing capability.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Jitendra Singh, Saurabh Kumar Gupta, Vinita
Summary: In this investigation, a Surface Acoustic Wave (SAW) formalin gas sensor was explored for low-level formalin gas sensing applications. The sensor showed stable response and high sensitivity to formalin gas concentration, making it a reliable and useful sensor for room temperature operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Chemistry, Physical
Xin-Yue Zhang, Qiang Ren, Chen Wang, Lin Zhu, Wen-Juan Ding, Yan-Qiang Cao, Wei-Ming Li, Di Wu, Ai-Dong Li
Summary: In this study, SnO2, ZnO thin film, and SnO2/ZnO composite thin film hydrogen sensors were fabricated using atomic layer deposition (ALD). The effects of ALD cycles and heat treatment temperatures on the sensing properties were investigated. The SnO2/ZnO composite film sensor exhibited the best hydrogen-sensing performance, attributed to the synergistic effect of the SnO2-ZnO heterojunction and oxygen vacancies in the SnO2 film. ALD may be a feasible strategy for constructing highly sensitive hydrogen sensors based on Si for micro-electromechanical system applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Yanghui Liu, Jian Zhou, Zhangbin Ji, Fengling Zhuo, Shengyu Wen, Yiqin Chen, YongQing Fu, Huigao Duan
Summary: This work proposed a hybrid/synergistic strategy using a LiNbO3/SiO2/SiC heterostructure to generate shear-horizontal (SH) surface acoustic waves (SAWs), and a nanocomposite of polyethylenimine-silicon dioxide nanoparticles (PEI-SiO2 NPs) to form a sensitive layer, achieving an ultrahigh sensitivity for SAW humidity sensors.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Q. A. Drmosh, Yousif Ahmed Al Wajih, Ibrahim Olanrewaju Alade, A. K. Mohamedkhair, Mohammad Qamar, Abbas Saeed Hakeem, Z. H. Yamani
Summary: A new approach to improve the performance of acetone gas sensors by engineering the depletion layer using Au decorated ZnO/Ag core-shell films has been developed. The findings demonstrate that controlled engineering of the depletion layer is an effective method for designing high-performance metal oxide-based gas sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
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)