Article
Engineering, Environmental
Patricia Lacchi da Silva, Ramiro Picoli Nippes, Paula Derksen Macruz, Fabio Luis Hegeto, Mara Heloisa Neves Olsen Scaliante
Summary: The study aimed to evaluate the photocatalytic activity of zinc oxide catalysts supported on natural zeolite clinoptilolite for degrading hydroxychloroquine. The highest degradation percentage was achieved under specific operational parameters, and ecotoxicological tests confirmed the reduction of effluent toxicity after photocatalytic treatment.
WATER SCIENCE AND TECHNOLOGY
(2021)
Review
Geochemistry & Geophysics
Jelena Pavlovic, Nevenka Rajic
Summary: Many efforts have been made to produce green materials and technology to combat the negative effects of population growth and industrial development on the environment and human health. Zeolites, with their unique structural features, have gained attention for their use as ion exchangers, adsorbents, and catalysts. They have been applied in various industries, including petrochemicals, environmental pollution degradation, and the synthesis of fine chemicals. Recent advances in the catalytic application of clinoptilolite (CLI), the most abundant natural zeolite, have opened up possibilities for biomass conversion and industrial bio-based chemical production.
Article
Biotechnology & Applied Microbiology
Mohd Azhar Abd Hamid, Hamidi Abdul Aziz, Mohd Suffian Yusoff, Sheikh Abdul Rezan
Summary: A novel single hybrid treatment method combining continuous clinoptilolite-augmented electrocoagulation with a sequencing batch reactor (SBR) process was introduced for highly concentrated ammoniacal nitrogen (NH3-N) and colour removal from landfill leachate. It was found that under optimal operating conditions, the proposed method was effective in removing NH3-N and colour, maintaining stable removal rates.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Biotechnology & Applied Microbiology
Katrina Wruck, Graeme J. Millar, Tony Wang
Summary: This study revealed that fusion activation of natural zeolites improved the robustness of the synthesis process and opened up new avenues for green zeolite formation. Future studies should focus on reducing the activation costs by lowering activation temperature and sodium hydroxide consumption.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Natalia Sobus, Igor Labaj, Magdalena Krol
Summary: In this paper, a one-pot process for converting using a modified clinoptilolite catalyst is presented. Iron, cobalt, and copper were introduced into the zeolite structure as active centers. The modified clinoptilolite catalyst was characterized and the catalytic process yielded various organic acids, including lactic acid, levulinic acid, formic acid, and acrylic acid, depending on the catalyst used and the specific process conditions.
Article
Environmental Sciences
Hesham M. Ibrahim, Abdulaziz G. Alghamdi
Summary: The study found that reducing the particle size of natural clinoptilolite zeolite can increase water content in soil, enhance microporosity, and improve soil hydraulic properties, ultimately leading to improved water use efficiency and water conservation in arid regions.
Article
Engineering, Environmental
Zathang Laldinpuii, Samson Lalhmangaihzuala, Zodinpuia Pachuau, Khiangte Vanlaldinpuia
Summary: PET, as one of the most widely used polymeric materials, can be depolymerized using BLA derived catalyst, which is cost-free, environmentally friendly, and reusable for multiple cycles, making it an efficient and sustainable solution for plastic waste management.
Review
Chemistry, Multidisciplinary
Sebastien Noel, Bastien Leger, Anne Ponchel, Samahe Sadjadi, Eric Monflier
Summary: This review focuses on stabilizing catalytically active metal nanoparticles in cyclodextrin-based systems, where cyclodextrins play multi-functional roles as reducing agents, stabilizing/dispersing agents, and mass transfer promoters. The study also explores the design of more sophisticated catalytic systems with cyclodextrin as a supramolecular host in dynamic equilibrium.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Zesheng Li, Bolin Li, Qingyu Li
Summary: Academician Tao Zhang and his team designed the first Pt-1/FeOx single-atom catalysts in 2011, introducing the concept of single-atom catalysis in heterogeneous catalysis. They recently developed nano-island type SACs, where the active metal atoms are confined within islands, allowing movement within the island but not across it. This new concept of single-atom nano-islands (SANIs) is divided into three categories and shows promising applications in various heterogeneous catalysis fields.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Applied
Mingyang Gao, Jiamin Wang, Weixiang Shang, Yuchao Chai, Weili Dai, Guangjun Wu, Naijia Guan, Landong Li
Summary: Suzuki-Miyaura cross-coupling reaction is a powerful method to construct carbon-carbon bonds and is widely used in the synthesis of functional organic compounds. In this study, zeolite-encased Pd particles (Pd@MFI) were successfully prepared and investigated as promising heterogeneous catalysts for the Suzuki-Miyaura cross-coupling reaction. The Pd@MFI catalysts showed high activity, with dispersed Pd particles efficiently stabilized within the MFI zeolite matrix. The presence of basic sites adjacent to Pd sites was crucial for achieving high catalytic activity.
Article
Environmental Sciences
Tonni Agustiono Kurniawan, Mohd Hafiz Dzarfan Othman, Mohd Ridhwan Adam, Xue Liang, Huihwang Goh, Abdelkader Anouzla, Mika Sillanpaa, Ayesha Mohyuddin, Kit Wayne Chew
Summary: This study investigates the use of natural zeolite clinoptilolite as a low-cost adsorbent for removing chromium from aqueous solutions. The adsorbent is pretreated with NaCl to enhance its removal performance and is regenerated with NaOH to sustain cost-effectiveness. Results show that NaCl-treated clinoptilolite has a higher Cr adsorption capacity and can treat a larger bed volume at a longer breakthrough time compared to as-received clinoptilolite. However, the treated effluents still do not meet the required Cr limit set by the EPA.
Article
Engineering, Chemical
Yuxin Chen, Ning Wang, Shengli An, Changkun Cai, Jun Peng, Manyi Xie, Jihua Peng, Xiwen Song
Summary: In this study, a green process involving high temperature sintering activation and hydrothermal reaction was developed for the synthesis of zeolitization ceramsite from industrial wastes. The results showed that the modified ceramsite loaded with cancrinite zeolite crystals exhibited improved specific surface area and enhanced adsorption capacity for ammonia nitrogen. The findings of this study have significant implications for various industrial applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Vikas Yadav, Lalit Kumar, Neha Saini, Meenakshi Yadav, Nahar Singh, Vajjiravel Murugasen, Ezhilselvi Varathan
Summary: This study aims to evaluate the efficiency of ca-form natural clinoptilolite zeolite in ammonia removal. The results show that the removal efficiency of clinoptilolite zeolite in ammonia ions is 76.48% in the batch study. The adsorption process is best described by the pseudo-second-order and Freundlich models, and it is endothermic.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Environmental Sciences
Benoit Sarrazin, Alexander Wezel, Mathieu Guerin, Joel Robin
Summary: This study investigated the pesticide contamination of fish ponds located in the mixed agriculture-pond landscape of the Dombes area, France. It found that crop area in catchments had a significant effect on the frequency of pesticide contamination in fish ponds, especially for broad-spectrum herbicides. Mitigation measures were proposed to reduce fish pond contamination.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Chao Wang, Yueying Chu, Danfeng Xiong, Haifeng Wang, Min Hu, Qiang Wang, Jun Xu, Feng Deng
Summary: We investigate the role of water in benzene methylation over ZSM-5 zeolite using solid-state NMR experiments and theoretical simulations. We find that water competes with benzene for the active sites of the zeolite and facilitates the reaction mechanism. The growth of water clusters induces a micro-hydrophobic effect in zeolite pores, which reorients benzene molecules and promotes their interactions with surface methoxy species on the zeolite.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Multidisciplinary
Shirin Ghattavi, Alireza Nezamzadeh-Ejhieh
COMPOSITES PART B-ENGINEERING
(2020)
Article
Chemistry, Physical
Narges Omrani, Alireza Nezamzadeh-Ejhieh
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2020)
Article
Materials Science, Multidisciplinary
Marzieh Nasiri-Ardali, Alireza Nezamzadeh-Ejhieh
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Engineering, Chemical
Narges Omrani, Alireza Nezamzadeh-Ejhieh
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Chemistry, Inorganic & Nuclear
Hadis Derikvandi, Alireza Nezamzadeh-Ejhieh
SOLID STATE SCIENCES
(2020)
Article
Chemistry, Inorganic & Nuclear
Meymanat Mehrali-Afjani, Alireza Nezamzadeh-Ejhieh
SOLID STATE SCIENCES
(2020)
Article
Environmental Sciences
Hadis Derikvandi, Maryam Vosough, Alireza Nezamzadeh-Ejhieh
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Chemistry, Physical
Samaneh Senobari, Alireza Nezamzadeh-Ejhieh
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2020)
Article
Chemistry, Physical
Abbas Noruozi, Alireza Nezamzadeh-Ejhieh
CHEMICAL PHYSICS LETTERS
(2020)
Article
Chemistry, Physical
Narges Omrani, Alireza Nezamzadeh-Ejhieh
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Review
Biochemistry & Molecular Biology
Wenfeng Zhang, Gaomin Ye, Donghui Liao, Xuelin Chen, Chengyu Lu, Alireza Nezamzadeh-Ejhieh, M. Shahnawaz Khan, Jianqiang Liu, Ying Pan, Zhong Dai
Summary: This paper reviews the mechanism and antibacterial effect of three typical MOFs in silver-based coordination polymers and discusses the existing shortcomings and future perspectives. The study on Ag-MOFs can provide a better basis for its clinical application and open up a novel strategy for the preparation of more advanced Ag-contained materials with antibacterial characteristics.
Article
Engineering, Chemical
Seyyedeh Atefeh Mirsalari, Alireza Nezamzadeh-Ejhieh
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Engineering, Chemical
Seyyedeh Atefeh Mirsalari, Alireza Nezamzadeh-Ejhieh
DESALINATION AND WATER TREATMENT
(2020)
Article
Engineering, Chemical
Farideh Yousefi, Alireza Nezamzadeh-Ejhieh
DESALINATION AND WATER TREATMENT
(2020)
Article
Chemistry, Inorganic & Nuclear
Nafiseh Pourshirband, Alireza Nezamzadeh-Ejhieh
SOLID STATE SCIENCES
(2020)
Article
Engineering, Electrical & Electronic
Nishi Mehak, Bindu Rani, Aadil Fayaz Wani, Shakeel Ahmad Khandy, Ajay Singh Verma, Atif Mossad Ali, M. A. Sayed, Shobhna Dhiman, Kulwinder Kaur
Summary: In this study, the electronic, structural, and thermoelectric properties of newly designed layered rare-earth metal germanide halides were investigated. The materials showed promising thermoelectric performance, making them suitable candidates for energy harvesting in thermoelectric applications.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Devidas I. Halge, Vijaykiran N. Narwade, Nabeel M. S. Kaawash, Pooja M. Khanzode, Sohel J. Shaikh, Jagdish W. Dadge, Prashant S. Alegaonkar, Rajeshkumar S. Hyam, Kashinath A. Bogle
Summary: This study presents the design and fabrication of a high-performance blue light photodetector using an n-type cadmium sulfide (CdS) thin film and a p-type polyaniline (PANI). The photodetector demonstrates exceptional performance characteristics, including high responsivity, detectivity, and sensitivity, along with rapid response time and rectification behavior. The research represents a significant advancement in the field of high-performance photodetectors.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Da Hu, Jiabin Lu, Qiusheng Yan, Yingrong Luo, Ziyuan Luo
Summary: This study introduces a chemical mechanical polishing technique based on metal electrochemical corrosion for single-crystal SiC to address the environmental pollution caused by the polishing solution in chemical mechanical polishing. Wear experiments were conducted to investigate the wear properties of SiC C-surface under different grinding ball materials and solutions. The proposed mechanism of material removal in single-crystal SiC via metal electrochemical corrosion was discussed.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Lifang Mei, Long Lin, Dongbing Yan, Yu Liang, Yu Wu, Shuixuan Chen
Summary: This paper investigates the removal of CuO particles from silicon wafer surfaces using a picosecond laser. Numerical calculations and experimental research were conducted, and a thermal-stress coupled finite element model was established. The results show that as the laser energy density increases, the removal rate of CuO particles initially increases and then decreases, while the roughness of the silicon substrate decreases and then increases.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Michihiro Yamada, Shuhei Kusumoto, Atsuya Yamada, Kentarou Sawano, Kohei Hamaya
Summary: In this study, we demonstrated the low-temperature growth of a Ge layer on a Co-based Heusler alloy via Sn doping, which improved the magnetic properties and spin signal.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Xiang-Long Wei, Bao-Feng Shan, Zong-Yan Zhao
Summary: This study synthesized and characterized a CuAlO2/CuGaO2 heterostructure and evaluated its photocatalytic performance. The heterostructure exhibited superior performance compared to individual CuAlO2 and CuGaO2 photocatalysts, with increased carrier concentration, enhanced redox capabilities, superior electrochemical stability, and reduced interfacial resistance. Photocatalytic experiments demonstrated the remarkable oxidation potential and notable reduction activity of the heterostructure, outperforming CuAlO2 and CuGaO2 in degradation rates and hydrogen production rates, respectively. These findings highlight the superior performance and broad applicability of the CuAlO2/CuGaO2 heterostructure in various photocatalytic reactions.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Micka Bah, Daniel Alquier, Marie Lesecq, Nicolas Defrance, Damien Valente, Thi Huong Ngo, Eric Frayssinet, Marc Portail, Jean-Claude De Jaeger, Yvon Cordier
Summary: This study investigates the AlN nucleation layer issue in GaN high frequency telecommunication and power switching systems fabricated after heteroepitaxy on Silicon or Silicon Carbide. It is shown that using 3C-SiC as an intermediate layer can significantly decrease RF propagation losses. Measurements and analyses demonstrate that dopant diffusion into the 3C-SiC pseudo-substrate is confined beneath the interface, and a slightly conductive zone is present beneath the AlN/3C-SiC interface, explaining the low propagation losses obtained for the devices. This work highlights the importance and efficiency of the 3C-SiC intermediate layer as a pseudo-substrate.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuang Wang, Lijun Wu, Zhiqing Wang, Ziyue Qian
Summary: The geometric structure and electrical properties of zigzag and armchair DWSiNT perfect tubes with different Stone-Wales defects were simulated using the SCC-DFTB method. It was found that the atomic arrangement, stability, energy gap, and charge distribution strongly depend on the type of tube. The effects of strong and weak electric fields on the tubes were also investigated, showing different impact on stability and energy gap. These findings have implications for future experimental studies.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Nanda Kumar Reddy Nallabala, Sunil Singh Kushvaha, Sambasivam Sangaraju, Venkata Krishnaiah Kummara
Summary: This study focuses on the preparation and performance of MIS-type high-k dielectric oxide-based UV photodetectors. The researchers found that the Au/Ta2O5/GaN devices prepared on Ta2O5/GaN heterojunction with post-annealing exhibited improved photoresponsivity, EQE, and rise/fall times. This improvement is attributed to the optimized band configuration of the Ta2O5/GaN heterostructure and the effect of post-annealing on photogenerated charge carriers.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Jean-Francois Michaud, Marc Portail, Daniel Alquier, Dominique Certon, Isabelle Dufour
Summary: This paper reviews the use of MEMS devices without sensitive layers in gas detection applications. These devices can measure a physical property of the gas to determine its concentration, and have the advantages of generality and high detection limits.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Kanyu Yang, Chaojie Shi, Ruizhao Tian, Haoyue Deng, Jie He, Yangyang Qi, Zhengchun Yang, Jinshi Zhao, Zhen Fan, Jun Liu
Summary: This study investigates the electrical and synaptic properties of Ag/TiO2 nanorod/FTO-based RRAM devices, focusing on the impact of different seed layer thicknesses on nanorod thickness and RRAM performance. The devices show remarkable achievements in terms of endurance, self-compliance, and resistance switching ratio. The switching mechanism is attributed to space-charge-limited conduction resulting from electron trapping in oxygen vacancy traps. The devices also maintain stable synaptic properties even after undergoing multiple cycles of long-term potentiation and depression.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Karthickraj Muthuramalingam, Wei-Chih Wang
Summary: This study presents a non-destructive approach using terahertz time-domain spectroscopy (THz-TDS) to estimate the electrical properties of semi-insulating compound semiconductors. The study successfully measures the resistivity and carrier concentration of semi-insulating Silicon Carbide (SiC) and Indium Phosphide (InP) wafers using THz-TDS in transmission mode. The simplified Drude model and the Nelder-Mead algorithm are employed to estimate the electrical properties, and the results are in accordance with the manufacturer specifications. The feasibility of non-destructive mapping of the electrical properties is demonstrated, offering a promising tomographic inspection approach for online monitoring.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Pengfei Wei, Rui Tong, Xiaofeng Liu, Yao Wei, Yongan Zhang, Xu Liu, Jian Dai, Haipeng Yin, Dongming Liu
Summary: This study investigates the influence of SiNx and SiOxNy as rear-side passivation films on the performance of PERC+ cells. SiNx film is found to have better passivation performance and resistance to aluminum paste erosion, while SiOxNy film exhibits better optical performance. By designing multi-layer SiNx/SiOxNy/SiNx stacks, the cells' efficiency and bifaciality are significantly improved.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuangting Ruan, Xiaolan Li, Wen Cui, Zhihui Zhang, Zhihui Xu, Huanqi Cao, Shougen Yin, Shishuai Sun
Summary: Integrating photosensitive electrode materials can effectively improve the low temperature tolerance and enhance energy density and power density. The surface morphology reconstruction technique can increase the active surface area and improve electrolyte contact, leading to higher specific capacity. Additionally, the electrodes demonstrate excellent photoelectric and photothermal conversion abilities, allowing the supercapacitor to maintain high energy density even at low temperatures.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Review
Engineering, Electrical & Electronic
Ashmalina Rahman, James Robert Jennings, Mohammad Mansoob Khan
Summary: This review provides a comprehensive overview of the synthesis and applications of nanostructured CuInS2 in photocatalytic applications. Various strategies, including the introduction of dopants, surface decoration, and heterojunction formation, have been summarized to improve the photocatalytic performance of CuInS2. However, scientific challenges such as the high carrier recombination rate limit the broad application of CuInS2.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
