Article
Materials Science, Multidisciplinary
Adil Alshoaibi, Shumaila Islam
Summary: A sol-gel-based zinc doped silica-titania nanocomposite matrix coated optical fiber was prepared for pH sensing, encapsulating four different dyes to optimize formulation and enhance dynamic pH range. The matrices showed thermal stability and fast response time towards basic media, without any signs of leaching in multiple DI water measurements.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Shuaiqi Chen, Xuhui Wang, Weiyi Tong, Jianchuan Sun, Xiangyu Xu, Jiaqing Song, Jianyi Gong, Wei Chen
Summary: Phosphorus-modified alumina with large pores was synthesized using a coprecipitation method and further enhanced by impregnating with glucose and carbonizing. The carbon-covered, phosphorus-modified alumina showed improved adsorption capacity for Rhodamine B, attributed to its similar pore structures with alumina and specific properties of carbon materials. The study indicates that the prepared nanomaterials are promising candidates for efficient adsorption of toxic dyes.
Article
Chemistry, Inorganic & Nuclear
Lakshmi Rekha Buddiga, B. B. Sailaja, Ganapathi Rao Gajula, Sandhya Rani Nayak, Christopher Voosala
Summary: Titania (TiO2) nano photocatalysts doped with Zirconium/Phosphorous (Zr/P) were synthesized using the sol-gel method. The incorporation of Zr/P in the TiO2 catalyst was confirmed by X-ray diffraction, and the average grain size of the doped catalyst was found to be smaller. N2 adsorption and desorption isotherms were used to determine the surface area, pore size, and pore volume of the photocatalysts, and a red shift in the UV DRS spectra indicated a decrease in the energy band gap for the Zr/P co-doped TiO2. The antibacterial activity of the photocatalysts was enhanced due to the doping, resulting in increased inhibition zones against bacterial growth.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Applied
Xuhui Wang, Shuaiqi Chen, Jianchuan Sun, Dehao Zhang, Zhihui Yan, Xiangyu Xu, Jiaqing Song
Summary: Mesoporous carbon materials synthesized through alumina-templated strategy exhibit large BET surface area, pore volume, and pore size, leading to high adsorption capacity for RhB. The kinetics module fits pseudo-second-order kinetic model and Langmuir model, showing potential for toxic dye wastewater treatments.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Physical
Francesco Caddeo, Alberto Casu, Danilo Loche, Lucy M. Morgan, Gavin Mountjoy, Colm O'Regan, Maria F. Casula, Shusaku Hayama, Anna Corrias, Andrea Falqui
Summary: Surfactant-mediated synthesis allows for the production of shape- and size-controlled nanocrystals with high thermal stability. In this study, ceria nanocubes embedded in a porous silica aerogel demonstrate homogeneous dispersion and retained size and shape even after thermal treatments up to 900 degrees C, preserving their reactivity and avoiding agglomeration. The reactivity of ceria nanocubes embedded in the aerogel is maintained while unsupported ceria nanocubes show agglomeration and degradation of reactivity at lower temperatures.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Environmental
Przemyslaw Maziarka, Christian Wurzer, Pablo J. Arauzo, Alba Dieguez-Alonso, Ondrej Masek, Frederik Ronsse
Summary: Biochar has a large specific surface area, making it suitable for applications in agriculture and environmental management. N-2 and CO2 characterization were used to evaluate the structural properties of different biochars, revealing that the peak in surface area reported around 650 degrees Celsius may be an artifact of N-2 measurements. The structural rigidity of biochar influences N-2 measurements, suggesting the use of a pore specific calculation model.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Syed Rizwanullah Hussaini, Jack Dvorkin
Summary: By computing total porosity and specific surface area for various natural sandstone, carbonate, and granular samples, tight correlations between these two variables were observed. Different trends were identified for low-to-medium porosity rocks compared to high-porosity granular samples, which were explained through theoretical derivations based on solid inclusions and grain packs. The accuracy of the digital data matching the theoretical curves indicates that the trends observed at a microscopic level are applicable at a much larger core and reservoir scale.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Environmental
Myungwon Oh, Mingyu Jin, Kyungho Lee, Jeong-Chul Kim, Ryong Ryoo, Minkee Choi
Summary: In this study, the catalytic effects of Pt/Al2O3 on triglyceride deoxygenation were rigorously investigated. The results showed that the γ-Al2O3 and θ-Al2O3 phases effectively stabilized highly dispersed Pt particles and exhibited high catalytic activity. Additionally, large mesopores were essential for achieving maximum catalytic activity and suppressing catalyst fouling. Comparatively, the θ-Al2O3 phase generally had larger pore sizes and fewer Lewis acid sites, which inhibited the formation of heavy products and coke.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Kuanguo Li, Xiangyu Tang, Haiyang Wang, Menghong Huang, Guangju Liu, Yong Zhou, Wanxia Huang, Zewen Zuo, Yonghua Lu
Summary: An efficient fabrication route was developed to produce a large-area and highly-ordered Ag opposing double nanocrescents-nanoparticle (AODCP) array. The fabrication process of crescent-shaped plasmonic nanostructures can be controlled, and the localized electrical fields are highly enhanced in the nanogaps and at the tips of the nanocrescents due to the coupling between the nanocrescents and nanoparticles. The AODCP arrays show promising applications in nonlinear optics, optical sensors, and surface enhanced spectroscopy.
APPLIED SURFACE SCIENCE
(2023)
Article
Optics
Kunyuan Xu, Dejian Chen, Decai Huang, Haomiao Zhu
Summary: The Yb3+-doped CsPbCl3 nanocrystals exhibit stable emission up to 400 K, thanks to the subpicosecond carrier trapping by Yb3+ dimer. However, at higher temperatures (400 K-480 K), the PL intensity decreases and irreversible loss occurs due to the formation of deep band-gap trap states and photon inactive species Cs4PbCl6. This study highlights the superior thermal stability of Yb3+ compared to exciton emission in perovskite NCs and provides insights for exploring thermally stable luminescent materials.
JOURNAL OF LUMINESCENCE
(2021)
Article
Chemistry, Multidisciplinary
Yidong Chen, Sarah Lerch, Zafer Say, Christopher Tiburski, Christoph Langhammer, Kasper Moth-Poulsen
Summary: Encapsulation of metal nanoparticles in mesoporous silica shells is an effective strategy for stabilizing them for high temperature catalytic applications. These protective shells provide structural support and efficient reactant transport, resulting in higher thermal stability and catalytic activity compared to surfactant-stabilized nanoparticles.
Article
Engineering, Chemical
Shuai Bai, Xinchun Guan, Hui Li, Jinping Ou
Summary: The study found that nano-silica with a larger specific surface area (NS-470) is more effective in improving the pore structure and enhancing reactivity of cement paste, prolonging the acceleration period and increasing the late hydration degree.
Article
Chemistry, Physical
Zheng Lin, Juan Xu, Yuan Lei, Xingrun Huang, Wenxing Ye, Xiaoru Liang, Chao Chen
Summary: In this study, a functional separator coating was constructed using mesoporous alumina and graphene to suppress the shuttle effect in lithium-sulfur batteries. Experimental results demonstrate that the mesoporous structure and large surface area of the alumina provide abundant adsorption sites for capturing polysulfides and facilitate their electrochemical reaction conversion on the conductive substrate surface. The strong interaction between polysulfides and alumina reduces energy barriers and enhances sulfur redox reaction kinetics. This research provides guidance for the design of functional separators for high-performance lithium-sulfur batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chenhui Wei, Caixia Li, Zhengkang Dou, Ming Fu, Xiaoyu Liu, Dawei He, Yongsheng Wang
Summary: The self-assembly of anisotropic colloidal particles is crucial in the construction of functional materials. The orientation among neighboring particles needs to be considered, and external influence is necessary for optimal results. This study presents a method using an electric field to control the alignment of silica nanorods or FeOOH ellipsoids during assembly, providing a solution for large-area film formation.
Article
Chemistry, Analytical
Xiaowei Ma, Mao Huang, Juan Jia, Han Wang, Jing Wang, Yanyan Zhu
Summary: Rationally designing porous nanomaterials with high specific surface area (SSA) is an effective approach for improving their electrocatalytic activity and enhancing electrochemical sensing performance. However, increasing SSA often leads to an amplified background current signal, which hinders the achievement of optimal sensing performance. In this study, graphene frameworks (GFs) with different SSA and pore size were successfully synthesized and used as electrode materials for constructing a non-enzymatic electrochemical sensor. The findings suggest that GFs with abundant hierarchical pore structure and relatively large SSA exhibit the best performance, demonstrating the importance of considering both SSA and pore size for electrochemical sensing applications.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Physical
Elinor C. Spencer, Nancy L. Ross, Rebecca E. Olsen, Baiyu Huang, Alexander I. Kolesnikov, Brian F. Woodfield
JOURNAL OF PHYSICAL CHEMISTRY C
(2015)
Article
Chemistry, Physical
Stacey J. Smith, Baiyu Huang, Calvin H. Bartholomew, Branton J. Campbell, Juliana Boerio-Goates, Brian F. Woodfield
JOURNAL OF PHYSICAL CHEMISTRY C
(2015)
Article
Chemistry, Applied
Maryam Khosrayi Mardkhe, John Lawson, Baiyu Huang, Erika D. Handly, Brian F. Woodfield
MICROPOROUS AND MESOPOROUS MATERIALS
(2015)
Article
Chemistry, Multidisciplinary
Stacey J. Smith, Baiyu Huang, Shengfeng Liu, Qingyuan Liu, Rebecca E. Olsen, Juliana Boerio-Goates, Brian F. Woodfield
Article
Chemistry, Physical
Sulata K. Sahu, Baiyu Huang, Kristina Lilova, Brian F. Woodfield, Alexandra Navrotsky
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2015)
Article
Chemistry, Physical
Kyle M. Brunner, Baiyu Huang, Brian F. Woodfield, William C. Hecker
Article
Chemistry, Physical
Elinor C. Spencer, Baiyu Huang, Stewart F. Parker, Alexander I. Kolesnikov, Nancy L. Ross, Brian F. Woodfield
JOURNAL OF CHEMICAL PHYSICS
(2013)
Article
Chemistry, Applied
Baiyu Huang, Calvin H. Bartholomew, Brian F. Woodfield
MICROPOROUS AND MESOPOROUS MATERIALS
(2013)
Article
Chemistry, Applied
Baiyu Huang, Calvin H. Bartholomew, Stacey J. Smith, Brian F. Woodfield
MICROPOROUS AND MESOPOROUS MATERIALS
(2013)
Article
Chemistry, Applied
Baiyu Huang, Calvin H. Bartholomew, Brian F. Woodfield
MICROPOROUS AND MESOPOROUS MATERIALS
(2014)
Article
Chemistry, Applied
Rebecca E. Olsen, Calvin H. Bartholomew, Baiyu Huang, Curtis Simmons, Brian F. Woodfield
MICROPOROUS AND MESOPOROUS MATERIALS
(2014)
Article
Chemistry, Applied
Baiyu Huang, Calvin H. Bartholomew, Brian F. Woodfield
MICROPOROUS AND MESOPOROUS MATERIALS
(2014)