Article
Engineering, Environmental
Yangyu Liu, Chunquan Li, Arman Peyravi, Zhiming Sun, Guangxin Zhang, Keivan Rahmani, Shuilin Zheng, Zaher Hashisho
Summary: Mesoporous silica MCM-41 was synthesized using sodium silicate extracted from natural Opoka, showing remarkable adsorption capacity for organic vapors mixture at 20 degrees Celsius and promising applications in VOCs abatement.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Jeyashelly Andas, Siti Hajar Ekhbal, Tammar Hussein Ali
Summary: This study successfully prepared MCM-41 and modified MCM-41 from silica extracted from rice husk ash, and characterized the materials through various analytical techniques. Ni-MCM-41 showed higher catalytic activity with benzaldehyde as the sole product, while MCM-41 produced benzaldehyde and styrene oxide.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Applied
Ang Li, Xiao Chen, Tingting Guo, Guangtong Hai, Panpan Liu, Han Yu, Jianhang Xu
Summary: This study utilized molecular dynamics to investigate the molecular motion mechanisms of PCMs with different functional groups confined in mesoporous MCM-41, aiming to reveal the interaction mechanisms between the two at the molecular and atomic levels to provide theoretical guidance for the design and preparation of high-performance composite PCMs based on MCM-41.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
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
Engineering, Environmental
Lurong Ge, Yaohui Feng, Yanjun Dai, Ruzhu Wang, Tianshu Ge
Summary: This study develops a composite sorbent with excellent water sorption performance and long-term stability by encapsulating an ionic liquid in ordered mesoporous MCM-41. The composite sorbent exhibits fast sorption rate, low temperature-driven regeneration potential, and no corrosion to metal components.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jana Timm, Michael Furtmair, Roland Marschall
Summary: For the first time, the assembly of isolated and purified MCM-41 nanoparticles into nanofibers was achieved through electrospinning. The nanofibers were characterized and the spinning parameters were investigated to tailor the nanofiber diameter. Additionally, the nanofiber mats were successfully functionalized with sulfonic acid groups while maintaining the nanofiber morphology.
Article
Chemistry, Applied
Vicente Candela-Noguera, Maria Alfonso, Pedro Amoros, Elena Aznar, Maria Dolores Marcos, Ramon Martinez-Manez
Summary: This study comprehensively investigates the factors affecting the formation of MCM-41 type mesoporous silica nanoparticles (MSN). The hydrolysis and condensation rates are found to play a central role in nanoparticle formation, and disregarded parameters such as stirring strength and surfactant addition rate are shown to modulate nucleation and growth. Furthermore, the aging and evolution of MSN are studied through the analysis of silica framework consolidation over time, providing insights into obtaining reproducible, homogeneous, and tailored-made MCM-41 type MSN.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Pharmacology & Pharmacy
Teodora Popova, Borislav Tzankov, Christina Voycheva, Ivanka Spassova, Daniela Kovacheva, Stanislav Tzankov, Denitsa Aluani, Virginia Tzankova, Nikolai Lambov
Summary: The study demonstrates the potential of MCM-41 and HMS as efficient drug delivery systems for bicalutamide, with high drug loading rates and reduced burst effect. The drug-loaded nanoparticles show good blood biocompatibility and increased antitumor activity against LNCaP cells.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Chemical
Yangyu Liu, Arman Peyravi, Zaher Hashisho, Shuilin Zheng, Zhiming Sun, Xiao Chen, Yuping Tong, Yongxing Hao, Jiuyue Wang
Summary: Highly ordered hexagonal mesoporous silica was synthesized from natural Opoka minerals, and an all-atom model of MCM-41 was constructed by simulation. Characterization techniques such as XRD, N2 adsorption, FE-SEM, TEM and FT-IR were used, and the water vapor adsorption/desorption performance of the samples was evaluated. The simulation revealed that water molecules on MCM-41 mainly adsorbed on silanol groups and skeleton defects, and the adsorption changed from mono-layer to multi-layer with increasing pressure.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Jinfan Yang, Ning Shang, Jiachen Wang, Huimin Liu
Summary: A novel MCM-41-supported Mg-Al-layered double oxide (LDO/MCM-41) was prepared and employed as a catalyst for the aldol condensation reaction. Compared to bulk LDO, LDO/MCM-41 exhibited higher selectivity and stability, achieving better performance at lower activity.
Article
Construction & Building Technology
Rafal Panek, Maciej Szelag, Wojciech Franus
Summary: The paper discusses the impact of MCM-41 mesoporous silica on the properties of cement matrix. It was found that the optimal content of MCM-41 is between 0.5% and 1%, as excess silica may disrupt the proper hydration process. The research indicates a high application potential of MCM-41 as an additive in cement.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Rana J. Kadhim, Faris H. Al-Ani, Qusay F. Alsalhy, Alberto Figoli
Summary: This study focuses on optimizing the incorporation of MCM-41 mesoporous material into PES membranes for nanofiltration applications, aiming to reduce membrane fouling and improve energy efficiency. By using optimization techniques, mathematical and statistical analyses, the study identified optimal operating parameters to enhance membrane performance at a larger scale.
Article
Biochemistry & Molecular Biology
Iane M. S. Souza, Sibele B. C. Pergher, Alexander Sachse
Summary: This study thoroughly investigated the possibility of crystallizing silicalite-1 from the pore walls of as-synthesized MCM-41 via steam-assisted crystallization. The results showed that the rapid destruction of the hexagonal mesophase occurred during SAC treatment, leading to the enlargement of mesopores and the formation of non-porous amorphous silica. Only after that, the crystallization of the MFI phase was evidenced.
Article
Engineering, Chemical
Dayanne E. F. Oliveira, Jose A. . O. Chagas, Ana Lucia De Lima, Claudio J. A. . Mota
Summary: Chitosan was impregnated on MCM-41 and SBA-15 mesoporous silica supports and tested for CO2 adsorption. The SBA-15 adsorbent impregnated with 50 wt % of chitosan showed the best results, with CO2 uptake of 0.78 mmol g-1.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Environmental Sciences
Morteza Khanmohammadi, Javad Rahbar Shahrouzi, Farhad Rahmani
Summary: This research focused on the photocatalytic degradation of tetracycline using CuO-TiO(2) heterojunctions on MCM-41 support, finding that the addition of CuO enhanced the photocatalytic activity and reusability of the nanocomposite. The optimal degradation rate was achieved with 5% CuO content in the TiO2-CuO/MCM-41 composite, attributed to reduced electron-hole recombination, appropriate band gap, and uniform dispersion of photosites.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Chemical
Yasan He, Gang Chen, Zhijuan Ji, Shunxing Li
SEPARATION AND PURIFICATION TECHNOLOGY
(2009)
Article
Nanoscience & Nanotechnology
Yasan He, Xiaogeng Lin, Jianhua Chen, Zhiyong Guo, Hongbing Zhan
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Xiaogeng Lin, Yanhua Deng, Yasan He, Jianhua Chen, Shirong Hu
Summary: In this study, a hydrophilic N, O-rich carboxylated triazine-covalent organic frameworks (ACOF-TaTp) was strategically designed for selective simultaneous electrochemical detection of mixed chemical compounds. The ACOF-TaTp exhibited high surface area and strong affinity to Gallic acid (GA) than to uric acid (UA), allowing clear separation of their closing oxidation peaks. The constructed sensor AuNPs@ACOF-TaTp/GCE showed high selectivity and sensitivity in simultaneous determination of GA and UA.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yasan He, Xiaogeng Lin, Yanmei Zhou, Jian Hua Chen, Zhiyong Guo, Hongbing Zhan
Summary: This study presents a strategy for synthesizing highly crystalline self-standing COF films under mild conditions, which involves the assembly of COF crystallites through homogeneous synthesis and slow concentration of the reaction solution. The strategy resulted in COF films with superior crystallinity and porosity, outperforming corresponding COF films or powders reported in the literature. The synthesized COF films exhibited outstanding permeance and selectivity for organic solvent and dye solutions.
CHEMISTRY OF MATERIALS
(2021)
Article
Engineering, Chemical
Yasan He, Xiaogeng Lin
Summary: This study investigates the effect of the chemical composition of COFs on the formation of COF membranes and the separation performance, aiming to synthesize high-performance and compact COF films by introducing hydrogen bonding between COF crystallites. The prepared COF-TBDH/nylon membrane with -OH groups exhibited unprecedented performance with high permeation flux and rejection rate, demonstrating the important role of -OH groups in the COFs. This work provides a significant concept and strategy for the preparation of high-performance COF membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Yasan He, Xiaogeng Lin, Jianhua Chen, Hongbing Zhan
Summary: A novel highly selective thin-film composite (TFC) forward osmosis (FO) membrane with high water flux and low reverse salt flux was successfully fabricated by using a rationally designed sulfonated covalent organic frameworks (COFs) as an interlayer. The prepared membrane overcame the trade-off between water flux and salt flux with enhanced FO permeation and superior selectivity in FO mode, demonstrating the crucial role of sulfonated COF interlayer and TMC modification of nylon support in achieving high performance. This new strategy opens up a pathway for utilizing COFs in preparing high-performance FO membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Xiaogeng Lin, Yasan He, Yuting Zhang, Wanyin Yu, Tao Lian
Summary: By incorporating sulfonated COFs into CTA/CA membranes, the FO performance was enhanced through increased membrane porosity, reduced structural parameter, and improved hydrophilicity. The synthesized TATP-SO3H COF with an ideal pore size showed high rejection to salt and easy water passage. XPS results confirmed the presence of H-bonding between TATP-SO3H and CTA/CA, leading to improved flux and selectivity in FO mode.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Xiaogeng Lin, Li Chen, Chang Chen, Jianqing Rao, Jianhua Chen, Yasan He
Summary: This study focuses on the development of highly crystalline COF powders and their assembly with chitosan to construct precise-sieving membranes. The membranes exhibit precise rejection to various dyes, while allowing ultrafast permeance. The study provides a significant concept and strategy for the preparation of high precise-sieving COF membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Xiaogeng Lin, Chen Li, Yasan He, Lei Li
Summary: This work reports a thermally promoted strategy for the rapid synthesis of highly crystalline COFs with triazine/hydroxyl-rich structures. The obtained COFs exhibit excellent adsorption capacity for 4-NP and have shorter reaction time.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Yasan He, Xiaogeng Lin, Yuan Tang, Ling Ye
Summary: An electrochemical sensing strategy was developed using gold nanoparticles doped carboxylated covalent organic frameworks and poly(fuchsin basic) film for simultaneous detection of ascorbic acid, dopamine, and uric acid. The sensor exhibited high sensitivity and selectivity with wide linear response ranges, making it practical for real human urine sample analysis.
ANALYTICAL METHODS
(2021)
Article
Engineering, Chemical
Yasan He, Zhijuan Ji, Shunxin Li
SEPARATION AND PURIFICATION TECHNOLOGY
(2007)
