Article
Biochemistry & Molecular Biology
Kailang Sun, Yonghong Liu, Taojun Zhang, Jie Zhou, Jinyang Chen, Xiaorong Ren, Zhen Yang, Minfeng Zeng
Summary: Montmorillonite clay was modified and used as a support for Pd nanoparticles. Pd@CS/AlMn-PM showed better catalytic performance than Pd@PVP/AlMn-PM due to its larger specific area, stronger chelation to Pd species, and better solvent resistance.
Article
Chemistry, Applied
Natalia Bueno, Alejandro Perez, Rafael Molina, Sonia Moreno
Summary: A Colombian bentonite was successfully pillared with Al, Al-Fe, Al-Cu and Al-Fe-Cu polyhydroxications in solid state. The effect of the Fe and Cu content on the physicochemical properties of the pillared bentonite was evaluated. The optimized conditions were used to compare the catalytic performance of the catalysts, and pillared clay with AlFeCu10 showed the best performance.
Article
Chemistry, Physical
Minfeng Zeng, Shuai Yang, Yuli Chen, Mengdie Xu, Jing Zhao, Taojun Zhang, Kailang Sun, Zhen Yang, Peng Zhang, Xingzhong Cao, Baoyi Wang
Summary: In this study, a novel pillared montmorillonite encaging porous chitosan derived activated N-doped carbon-supported Pd nanoparticles catalyst was successfully synthesized. The catalyst showed high catalytic efficiency for Sonogashira reactions and can be recycled multiple times. The unique encagement of the catalyst in the layered nanospaces of pillared montmorillonite was further elucidated by various characterization methods.
APPLIED CLAY SCIENCE
(2022)
Article
Chemistry, Physical
Kailang Sun, Taojun Zhang, Jie Zhou, Yonghong Liu, Minfeng Zeng, Zhen Yang, Ruokun Feng, Xiaorong Ren, Peng Zhang, Baoyi Wang, Xingzhong Cao
Summary: Chitosan-Pd0 nano particles encapsulated in Al, Co-pillared montmorillonite nanocomposites were successfully synthesized using a facile one-pot heat treatment method. The Al, Co pillaring effectively expanded the surface area and generated numerous mesopores in the interlayer space of the MMt. The resultant nanocomposite exhibited similar high comprehensive catalytic performances as the one prepared by the regular divided-multistep method. The encapsulation of CS chains and doping of Co in the Al pillaring also contributed to the improved catalytic performance.
APPLIED CLAY SCIENCE
(2024)
Article
Engineering, Environmental
Na-Kyung Kim, Sang-Hoon Lee, Hyeokjun Yoon, Garam Jeong, You-Jung Jung, Moonsuk Hur, Byoung-Hee Lee, Hee-Deung Park
Summary: In this study, metagenomic approaches were used to investigate the microbial communities involved in LAS degradation in AS. The results revealed unique sets of genes with diverse abundances in each sample, with alkB and cytochrome P450 genes shared within specific MAGs. This study provided significant insights into how AS microbiomes potentially metabolize LAS and interact with commensal bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Applied
M. Candan Karaeyvaz, Suna Balci
Summary: A one-pot synthesis method is used to prepare STA/AlPILC catalysts, where the STA-Al Keggin type pillar agents are inserted between clay layers. The addition of STA and the isolation step influence the structural properties of the catalyst, with XRD and TEM confirming the preservation of the AlPILC support structure in the presence of STA. Furthermore, the Lewis acidity is identified as the dominant acid character in all catalysts.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Physical
M. Ghadiri, K. Shams
Summary: In this study, sulfuric acid-activated bentonite clay, alumina-pillared bentonite clay, and alumina-pillared sulfuric acid-activated bentonite clay were prepared as green catalysts for the transalkylation reaction of heavy alkylbenzenes (HABs) with benzene. The catalysts were characterized using various techniques and their catalytic behavior was investigated in a batch-slurry reactor. It was found that the optimal temperature for the catalytic reaction was 225°C, and the activity of the catalysts increased with an increased benzene/HABs ratio. The alumina-pillared sulfuric acid-activated bentonite clay showed the highest catalytic activity, with 80% conversion of HABs at 225°C and a benzene/HABs ratio of 16.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2023)
Article
Environmental Sciences
Ying Luo, Xiaowei Jin, Huiyu Xie, Xiaoyan Ji, Yang Liu, Changsheng Guo, John P. Giesy, Jian Xu
Summary: In this study, risks posed by linear-alkylbenzene-sulfonate (LAS) to aquatic organisms were assessed using a multilevel risk assessment approach. The concentrations of LAS in surface waters in China varied greatly, with some areas exceeding the predicted no effect concentration (PNEC) for adverse effects on reproduction. The study highlighted the need for comprehensive management and control approaches to effectively manage water resources affected by increasing LAS concentrations.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Yaneth Cardona, Agnieszka Wegrzyn, Pawel Miskowiec, Sophia A. Korili, Antonio Gil
Summary: This study evaluates the removal of three emerging pollutants, triclosan, 2,6-dichlorophenol, and bisphenol A, from water using Fenton-like and photo-Fenton-like reactions. The catalysts used were montmorillonite (Mt) and aluminum interlayered pillared clays (Al-PILC). The results showed that almost 100% of triclosan and 2,6-dichlorophenol can be removed using Al-PILC based catalysts.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Chemistry, Physical
Laura Cipriano Crapina, Liva Dzene, Jocelyne Brendle, Florence Fourcade, Abdeltif Amrane, Lionel Limousy
Summary: Advanced oxidation processes, particularly the heterogeneous electro-Fenton (HEF) process, show promise in removing persistent organic pollutants from industrial wastewaters. Clay-modified electrodes have emerged as effective catalysts in this process, particularly due to their ability to facilitate electron transfer without the use of mediators. The milestone achievement of electron transfer between Fe(III) and Fe(II) without the need for mediators is highlighted as a significant advancement in this field.
Article
Engineering, Chemical
Reza Aram, Mahmoud Abdollahy, Parviz Pourghahramani, Ahmad Khodadadi Darban, Mehdi Mohseni
Summary: The study demonstrates that intensive ball milling in wet and dry modes can significantly alter the microstructural changes of sphalerite, affecting its dissolution rate and extraction rate of Zn. The ratio of kinetic rate constant increases with different milling modes, and the activation energy decreases with prolonged milling time.
Article
Environmental Sciences
Runyu Zhou, Gaofeng Zhou, Yiqing Liu, Shenglan Liu, Shixiang Wang, Yongsheng Fu
Summary: This study proposes a novel PAA-based advanced oxidation process using Mn3O4 as a catalyst for sulfamethoxazole (SMX) removal. The results show that Mn(II), Mn(III), and Mn(IV) on Mn3O4 are the active species for PAA activation, facilitating the redox cycles of Mn(II)/Mn(III) and Mn(III)/Mn(IV). Organic radicals, such as CH3C(O)O· and CH3C(O)OO·, are identified as the dominant reactive species responsible for SMX degradation. The neutral pH condition is found to be the most favorable for SMX removal, and increasing PAA or Mn3O4 dosage enhances SMX degradation. Presence of HCO3- and NOM inhibits SMX degradation, while Cl-, NO3-, and SO42- have negligible effects. The study also demonstrates the good reusability and stability of Mn3O4 for PAA activation. The degradation pathways of SMX in the Mn3O4/PAA system involve hydroxylation, nitration, bond cleavage, and coupling reactions.
Article
Chemistry, Physical
Anna Lenarda, Michele Melchionna, Santeri Aikonen, Tiziano Montini, Paolo Fornasiero, Tao Hu, Michael Hummel, Juho Helaja
Summary: Activated carbons obtained from organosolv lignin were used as catalysts for aerobic oxidative dehydrogenation (ODH) reactions. The relationship between structure and activity was investigated, and the distribution of oxygen functionality was found to play a crucial role. The catalytic activity was associated with C=O surface functionalities, which was confirmed by blocking experiments. The breadth of the catalysts' applicability was explored through selected relevant ODH reactions.
Article
Chemistry, Physical
Carlos Lizandara-Pueyo, Xinyuan Fan, Carles Ayats, Miquel A. Pericas
Summary: This study involved the controlled synthesis of calcium carbonate particles surface-functionalized with azido groups, followed by copper-catalyzed alkyne-azide cycloaddition reactions to prepare novel catalytic materials. The immobilized catalyst demonstrated high selectivity and efficiency in catalyzing Michael addition reactions of aldehydes, with the added advantage of being reusable and adaptable to continuous-flow operation for increased productivity.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Suhdi, Sheng-Chang Wang
Summary: The study shows that fine activated carbon prepared with ZnCl2 as activating agent has higher specific surface area and better physical adsorption properties. By adding an appropriate amount of ZnCl2 for activation of rubber fruit shells, a cheap and abundant precursor material for activated carbon with high carbon content can be obtained.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)