Article
Engineering, Electrical & Electronic
Tien-Thanh Nguyen, Khac An Dao, Thi Tu Oanh Nguyen, Thi Dieu Thuy Ung, Duy Thien Nguyen, Si Hieu Nguyen
Summary: This study investigated the impact of oxygen vacancy (OV) and gold nanoparticles on the photoelectrocatalytic activities of Au@TiO2 photoanodes. Increasing OV concentration enhanced the activity of TiO2 photoanodes while moderating the activity of Au@TiO2 photoanodes, attributed to the Schottky barrier between gold and TiO2 nanoparticles.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Materials Science, Coatings & Films
Ribhu Sharma, Minghan Xian, Chaker Fares, Mark E. Law, Marko Tadjer, Karl D. Hobart, Fan Ren, Stephen J. Pearton
Summary: Schottky rectifiers fabricated on beta-Ga2O3 have high breakdown voltage and low on-state resistance, making them suitable for power inverters. Utilizing a multiprobe array can mitigate the impact of current spreading on measurements, enabling the measurement of high forward currents.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2021)
Article
Chemistry, Multidisciplinary
Ewa Wierzbicka, Thorsten Schultz, Karolina Syrek, Grzegorz Dariusz Sulka, Norbert Koch, Nicola Pinna
Summary: This study introduces a core-shell structure composed of nanostructured self-standing titania nanotubes filled with Au nanowire array, which shows efficient photocurrent generation and photon conversion efficiency for photoelectrocatalytic water splitting.
MATERIALS HORIZONS
(2022)
Article
Chemistry, Multidisciplinary
Shaoyu Zhou, Longbo Jiang, Hui Wang, Jinjuan Yang, Xingzhong Yuan, Hou Wang, Jie Liang, Xiaodong Li, Hui Li, Yuanqing Bu
Summary: The rational design of Ti3C2Tx MXene-derived TiO2-based photocatalysts with broad light absorption and efficient charge separation for antibiotic degradation has attracted attention. However, the effects of oxygen vacancies and high work function O-terminated Ti3C2 on light absorption and photocatalytic activity are controversial. In this study, Ti3C2Tx-derived TiO2/Ti3C2Tx photocatalysts were regulated to reveal the contribution of different components. The photocatalyst with oxygen vacancies and carbon dopants showed superior performance in tetracycline hydrochloride degradation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Xuemin Hu, Wenqiang Liu, Jialin Yang, Shengli Zhang, Yuanfeng Ye
Summary: The study focuses on the electronic structures and contact properties of graphene/XC (X = P, As, Sb, Bi) van der Waals heterostructures, revealing the impact of different X atoms on contact properties and increasing electron tunneling probabilities with larger atomic radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Zhuoran Han, Can Bayram
Summary: Diamond p-type lateral Schottky barrier diodes with and without Al2O3 field plates are studied, showing stable leakage current density, high rectifying ratio, and high breakdown voltage.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Physics, Applied
Takaya Sugiura, Nobuhiko Nakano
Summary: This study focuses on the breakdown operations modeling of gallium oxide (Ga2O3), proposing models that consider both soft and hard breakdown phenomena. The impact ionization model of β-Ga2O3 in <001> orientation is improved, reproducing hard breakdown operations. A barrier lowering model is also determined for reproducing soft breakdown operations. These modeling outcomes are crucial for predicting reverse-biased operations and further technological development and applications of Ga2O3.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Applied
P. Bamola, S. Rawat, D. K. Pathak, M. Sharma, C. Dwivedi, S. Farsinezhad, R. Kumar, H. Sharma
Summary: Hybrids based on one dimensional nanostructures have shown promising results for photocatalytic applications. By modifying the interface, hybrids with electronic interaction can enhance photocatalytic activity. Switching between Ohmic and Schottky barriers using different hybrids can lead to improved charge transport and ultimately enhance photocatalytic activity. Metal and bimetallic nanoparticles were used to modify interface and studying their effect on charge carriers, with the analysis showing enhanced photocatalytic activity in hybrids with improved charge separation.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Sosorburam Boldbaatar, V. Janardhanam, Munkhsaikhan Zumuukhorol, Hoon-Ki Lee, Hae-Yong Lee, Hyo Jung Kim, Kyu-Hwan Shim, Chel-Jong Choi
Summary: We investigated Ni Schottky contacts on alpha-Ga2O3 epitaxial layers and studied their current-voltage characteristics at temperatures ranging from 100 to 425 K. The Ni/alpha-Ga2O3 Schottky diode showed excellent rectification with a high barrier height of 1.39 eV, a low leakage current of around 10-12 A, and a breakdown voltage of 215 V at room temperature. The temperature dependence of the barrier height and ideality factor indicated the presence of barrier inhomogeneity at the Schottky interface, with a transition occurring at 250 K.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Chemistry, Physical
Wei Jin, Dekang Liu, Liyuan Zhang, Qian Sun, Yishan Wang, Enzhou Liu, Xiaoyun Hu, Hui Miao
Summary: In this study, a new type-II Sb-2(S,Se)(3)@TiO2 core-shell heterojunction was constructed, which shows great potential in the field of PEC water splitting by enhancing the separation and utilization of photogenerated carriers.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Kazi Hasibur Rahman, Asit Kumar Kar, Kuan-Chung Chen, Ching-Jung Chen
Summary: This study focuses on the synthesis of Fe3+ doped TiO2 nanoparticles with different molar concentrations of Fe3+ and their potential use as photocatalysts. The photocatalysts were thoroughly characterized using various analytical techniques to determine their morphological, chemical, structural, and optical properties. The presence of Fe3+ ions resulted in a red shift phenomenon, indicating the transfer of charges between the dopant and TiO2. Experimental results showed that Fe3+ ions regulate the catalytic property of TiO2 nanomaterials, and achieved high degradation efficiency rates for Methylene Blue and Malachite Green Oxalate under visible light irradiation.
Article
Engineering, Electrical & Electronic
Qi Li, Juan Wang, Guoqing Shao, Genqiang Chen, Shi He, Qianwen Zhang, Shumiao Zhang, Ruozheng Wang, Shuwei Fan, Hong-Xing Wang
Summary: The researchers proposed a simple method to enhance the performance of diamond vertical Schottky barrier diode by using an Al2O3 field plate. The experimental results showed that this method can increase the breakdown voltage and reduce the turn-on voltage, which has potential for the development of diamond power devices.
IEEE ELECTRON DEVICE LETTERS
(2022)
Article
Chemistry, Physical
Duo Chen, Wencheng Yu, Lin Wei, Jiasheng Ni, Hui Li, Yanxue Chen, Yufeng Tian, Shishen Yan, Liangmo Mei, Jun Jiao
Summary: A novel sensor based on Schottky junction inducing avalanche breakdown effect in TiO2-Sn3O4 nanoheterojunctions is demonstrated for high-sensitivity NO2 gas sensing at room temperature. The Schottky contact functions as a gate to trigger the avalanche breakdown effect, and the detection can be achieved by tuning the Schottky barrier height and utilizing surface chemisorption of the gas and device bias.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Ntakadzeni Madima, Kebede K. Kefeni, Shivani B. Mishra, Ajay K. Mishra, Alex T. Kuvarega
Summary: This study successfully synthesized magnetic Fe3O4/TiO2 nanocomposites as efficient and recyclable photocatalysts for degrading rhodamine B pollutants under simulated solar light. By optimizing factors such as Fe3O4 loading, photocatalyst properties, and reuse cycles, the photocatalytic activity and stability were improved.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Lijun Ding, Jie Wei, Yu Qiu, Yuan Wang, Zuorui Wen, Jing Qian, Nan Hao, Caifeng Ding, Yaqi Li, Kun Wang
Summary: The MoTe2 NPs/RGO heterostructures demonstrate excellent photoelectric performance and show promise as visible light-responsive materials for PEC biosensors. The label-free PEC aptasensor based on this material has a wide linear range and relatively low detection limit, showcasing its potential in the field of photoelectric sensing.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Laura Mais, Michele Mascia, Simonetta Palmas, Annalisa Vacca
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Energy & Fuels
Gabriele Cali, Paolo Deiana, Claudia Bassano, Simone Meloni, Enrico Maggio, Michele Mascia, Alberto Pettinau
Article
Chemistry, Physical
Annalisa Vacca, Laura Mais, Michele Mascia, Elisabetta Maria Usai, Simonetta Palmas
Article
Environmental Sciences
Laura Mais, Annalisa Vacca, Michele Mascia, Elisabetta Maria Usai, Stefania Tronci, Simonetta Palmas
Article
Electrochemistry
Elisa Casula, Bongkyu Kim, Henry Chesson, Mirella Di Lorenzo, Michele Mascia
Summary: This study introduces a novel tubular SMFC design with a ceramic tube as a separator and structural support. A mathematical model is proposed to evaluate the impact of system design and soil properties on performance, providing valuable insights for optimal design and operational conditions for SMFCs.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Jesus Rodriguez, Laura Mais, Roberto Campana, Lorenza Piroddi, Michele Mascia, Jonas Gurauskis, Annalisa Vacca, Simonetta Palmas
Summary: This study reports a new procedure for low-cost Microbial Fuel Cells (MFCs) manufacture based on the optimization of the most expensive MFC components: separator and cathode. The new tubular MFC clay separators achieve the lowest thickness and cost to date, while the novel CuO cathode shows a high power density and remains stable during long-term operation. The economic analysis indicates a low cost for the proposed cell compared to other Ceramic-MFCs (C-MFCs) reported in the literature.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Elisa Casula, Daniele Molognoni, Eduard Borras, Michele Mascia
Summary: A 3D mathematical model has been implemented to simulate the different processes occurring in a bioelectrochemical system equipped with carbon fibre brush anodes. The effects of operative conditions on the performance of the process have been quantified, providing a versatile tool for designing and optimizing BES reactors.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Laura Mais, Simonetta Palmas, Michele Mascia, Annalisa Vacca
Summary: This study investigated the effects of applied potential and chloride ions in the solution on the photoelectrocatalytic oxidation of diethyl phthalate (DEP) using TiO2 nanotubular anodes. The presence of chloride ions was found to negatively impact the degradation rate of DEP.
Review
Chemistry, Physical
Simonetta Palmas, Laura Mais, Michele Mascia, Annalisa Vacca
Summary: The article highlights the importance of utilizing renewable energy through photoelectrocatalytic processes, focusing on the trend of NT-TiO2 electrodes for wastewater treatment.
CURRENT OPINION IN ELECTROCHEMISTRY
(2021)
Article
Chemistry, Physical
Stefania Porcu, Micaela Castellino, Ignazio Roppolo, Carlo Maria Carbonaro, Simonetta Palmas, Laura Mais, Maria Francesca Casula, Svetlana Neretina, Robert A. Hughes, Francesco Secci, Pier Carlo Ricci
APPLIED SURFACE SCIENCE
(2020)
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)