Article
Energy & Fuels
Yang Liu, Junjie Liao, Liping Chang, Weiren Bao
Summary: This paper investigates the adsorption performance of silver-modified mesoporous materials in removing thiophenic compounds. The results show that the adsorption of thiophene by the sorbents involves S-Ag and pi complexation reactions, and the adsorption efficiency is greatly affected by benzene. XPS analysis reveals that silver interacts strongly with the carrier and forms Ag-O-Si bonds as the active centers for thiophenic compounds. The Mulliken charges of sulfur atoms have an impact on the interactions between silver and thiophene sulfur compounds.
Article
Chemistry, Applied
Nushin Ettekali, Somaiyeh Allahyari, Nader Rahemi, Fahime Abedini
Summary: Micro-mesoporous SiO2 aerogel supported by MoO3 nanoparticles was used as a catalyst and adsorbent for the oxidation of dibenzothiophene (DBT), leading to enhanced catalytic activity and successful desulfurization of Iranian gasoil with noticeable reduction in sulfur-containing components. The characterization of the catalysts indicated uniform dispersion of MoO3 nanoparticles on the aerogel surface, with maintained crystalline structure despite decreased porosity in spent catalyst due to adsorption of DBT sulfones.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zongwei Zhang, Keheng Wei, Chao Li, Zhenhong Deng, Feixue Chu
Summary: The study reports a simple process of catalytic adsorptive desulfurization of model jet fuel using TiO2 loaded on different mesoporous materials. TiO2/MCM-41 exhibited higher adsorption capacity and strength, better selectivity, and rapid kinetics, making it a cost-effective and efficient desulfurization adsorbent for producing clean jet fuel.
Article
Chemistry, Physical
Fahime Abedini, Somaiyeh Allahyari, Nader Rahemi
Summary: Different amounts of BiOBr and g-C3N4 were loaded on MCM-41 to achieve efficient photo oxidation and adsorption of DBT. The optimal photocatalyst, BiOBr-C3N4/MCM-41 with 10% BiOBr, showed highest activity and lowest DBT concentration, attributed to the highest structural defects and strongest interaction. However, after four cycles, a decrease in activity was observed due to pores blockage by DBT sulfones.
APPLIED SURFACE SCIENCE
(2021)
Article
Energy & Fuels
Pawanpreet Kaur, Harish Kumar Chopra
Summary: Supported ionic liquids (SILs), immobilized ILs onto solid support materials, have shown advantages over pure ILs in various applications. In this study, new SILs were synthesized by immobilizing S-alkyl/aryl-substituted 2-mercaptobenzothiazolium-based ILs onto MCM-41 silica support. The synthesized SILs were characterized, and their performance in removing sulfur-containing aromatic species from gasoline was investigated. MCM-41@[S-BzBTh][Cl] showed excellent sulfur removal efficiency from model gasoline.
Article
Engineering, Chemical
Fahime Abedini, Somaiyeh Allahyari, Nader Rahemi
Summary: The study investigated the effectiveness and economy of using a catalyst-adsorbent for simultaneous oxidation and adsorption of sulphuric compounds in liquid fuels. The results showed that the sample with 5% MoS2 exhibited the highest degree of desulfurization.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Optics
Zhaoping Chen, Qin Wang, Ziyao He, Jiaming Li, Enrou Mei, Xiaojuan Liang, Weidong Xiang
Summary: CsPbX3 perovskites have high potential as lasing materials, but suffer from poor stability. This study successfully prepared CsPbBr3@MCM-41 composites and optimized the mixing ratio to improve stability. The composites exhibited ASE behavior at room temperature, paving the way for their widespread use in optoelectronic applications.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Multidisciplinary
Fan Xu, Zhihong Zhang, Yuanyuan Shi
Summary: Fe/ATP (attapulgite) desulfurizers with different loads were prepared by precipitation method. XRD profiles showed that the loading threshold for monolayer dispersion was 28.75%. The desulfurizers were characterized by UV-vis, FT-IR, TPR, BET, and SEM. The performances of desulfurizers with different loads were compared, and it was found that the highest sulfur capacity and availability ratio of iron oxides were achieved when the loading reached the threshold. Beyond the threshold, the sulfur capacity decreased due to the increase in skeleton iron and aggregation of iron oxides.
Article
Engineering, Chemical
Sedigheh Akbari Bengar, Mohammad Ali Zanjanchi, Shabnam Sohrabnezhad
Summary: The as-synthesized MCM-41 and its modified forms were studied as effective adsorbents for the removal of SDBS from contaminated aqueous solutions. Characterization and optimization experiments were carried out, showing that the adsorption process is well-described by the Langmuir isotherm equation and is controlled by entropy changes. The adsorbent showed significant efficiency even after three cycles of use in recycling studies.
DESALINATION AND WATER TREATMENT
(2021)
Article
Chemistry, Physical
Maria L. Cerrada, Artur Bento, Ernesto Perez, Joao P. Lourenco, M. Rosario Ribeiro
Summary: Functionalized polyethylene-based nanocomposites were prepared by in situ polymerization of ethylene with modified or neat MCM-41 nanoparticles. Two different synthetic approaches, one incorporating UA into the polymeric matrix and the other using UA as an interfacial agent, were investigated to improve the compatibility between the hydrophobic HDPE matrix and the hydrophilic NMCM-41. The influence of UA presence on the polymerization behavior and the thermal behavior and structural details of the resulting materials were characterized. The impact of using neat or functionalized NMCM-41 on the final dispersion within the polymeric matrix and the mechanical performance exhibited by these nanocomposites were also analyzed.
Article
Chemistry, Inorganic & Nuclear
Chen Hao, Ren Shi-Biao, Zhang Ping, Wang Zhi-Cai, Lei Zhi-Ping, Kang Shi-Gang, Pang Chun-Xiu, Yan Jing-Chong, Li Zhan-Ku, Shui Heng-Fu
Summary: Ni/MCM-41 catalysts were prepared using a solvent-free mechanical grinding method, and Ni/MCM-41(CA) catalyst was also prepared by adding citric acid during the preparation process. The addition of citric acid greatly improved the dispersion of metallic nickel in the catalyst and enhanced the naphthalene hydrogenation performance. The mechanism behind this enhancement was attributed to the formation of nickel citrate during the preparation process.
CHINESE JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Mukul Saxena, Jai Prakash Kushwaha, Shweta Kulshreshtha, Gurleenjot Kaur, Neetu Singh
Summary: This study investigates the adsorption process of Doxycycline on MCM-41 and proposes a suitable model equation and adsorption mechanism. High Doxycycline removal and adsorption capacity are observed at optimized parameters.
CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY
(2022)
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)