Porous hexagonal boron nitride nanosheets from g-C3N4 templates with a high specific surface area for CO2 adsorption

2020 ◽  
Vol 46 (17) ◽  
pp. 27627-27633
Author(s):  
Shuwen Li ◽  
Xianghui Zeng ◽  
Hui Chen ◽  
Wei Fang ◽  
Xuan He ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Co2 Adsorption ◽  
Hexagonal Boron Nitride ◽  
High Specific Surface Area ◽  
Boron Nitride Nanosheets

Novel amino-functionalized hypercrosslinked polymer nanoparticles constructed from commercial macromolecule polystyrene via a two-step strategy for CO2 adsorption

2020 ◽  
Vol 44 (48) ◽  
pp. 21125-21133
Author(s):  
Yaoyu Pan ◽  
Ziqiang Xu ◽  
Wenze Tan ◽  
Yalin Zhu ◽  
Yun Wang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Co2 Adsorption ◽  
High Specific Surface Area ◽  
Polymer Nanoparticles ◽  
Cost Advantage ◽  
Microporous Structure ◽  
Commercial Polymers ◽  
Capture Capacity

Commercial polymers have large cost advantage to drive HCPs to industrialize. The AHCPNPs using commercial PS as main block prove that it still has well-defined microporous structure, high specific surface area and extremely CO2 capture capacity.

Synthesis of High Surface Area Boron Nitride Nanosheets for the Removal of Methylene Blue and Rhodamine B Dyes from Contaminated Water

2020 ◽  
Vol 20 (10) ◽  
pp. 6222-6234 ◽  
Author(s):  
Raghubeer S. Bangari ◽  
Niraj Sinha
Keyword(s):  
Electron Microscopy ◽  
Methylene Blue ◽  
Adsorption Isotherm ◽  
Boron Nitride ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Rhodamine B ◽  
Contaminated Water ◽  
Boron Nitride Nanosheets

In this study, we report the synthesis and characterization of boron nitride nanosheets (BNNSs), and their application as an adsorbent to remove the cationic dyes methylene blue (MB) and rhodamine B (RhB) from contaminated water. The synthesized adsorbent was characterized by high-resolution transmission electron microscopy (HR-TEM), field emission electron microscopy (FE-SEM), X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FTIR) and nitrogen adsorption–desorption isotherm. Detailed experiments and analysis were performed on various molar ratios of boron and nitrogen precursors (1:5 to 1:48) to achieve maximize specific surface area of BNNSs. Among all, the samples synthesized with boric acid and urea (1:30) dissolved in water and methanol produced maximum specific surface area (1801.9 m2 g−1). Further, the adsorption study was performed in batches by investigating various adsorption parameters such as effect of pH, contact time, adsorbent dose and adsorption isotherm. The pH study revealed that optimum value was found to be at pH 8. It was found through the kinetic study that pseudo-second-order (PSO) kinetic model was followed by the adsorbent during the adsorption of both the dyes. Further, the adsorption isotherm data well fitted with Langmuir isotherm model. The maximum adsorption capacities of MB and RhB were found to be 333.33 and 312.5 mg g−1, respectively. This demonstrates the potential of BNNSs as novel adsorbent for treatment of dye-contaminated water.

Synthesis of rose-like boron nitride particles with a high specific surface area

2010 ◽  
Vol 45 (8) ◽  
pp. 1013-1016 ◽  
Author(s):  
Hongming Yu ◽  
Xiaoxiao Huang ◽  
Guangwu Wen ◽  
Bo Zhong ◽  
Tao Zhang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Specific Surface Area

Nanostructured BN–TiO2 composite with ultra-high photocatalytic activity

2017 ◽  
Vol 41 (20) ◽  
pp. 11640-11646 ◽  
Author(s):  
Bikramjeet Singh ◽  
Gurpreet kaur ◽  
Paviter Singh ◽  
Kulwinder Singh ◽  
Jeewan Sharma ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Boron Nitride ◽  
Specific Surface ◽  
Pore Size ◽  
Surface Area ◽  
Titanium Oxide ◽  
Specific Surface Area ◽  
High Specific Surface Area ◽  
High Photocatalytic Activity ◽  
Large Pore Size

Boron nitride and titanium oxide composite (BN–TiO2) photocatalyst endowed with high specific surface area and large pore size was synthesized by ice bath method.

scholarly journals Nanoporous Quasi-High-Entropy Alloy Microspheres

Metals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 345 ◽  
Author(s):  
Lianzan Yang ◽  
Yongyan Li ◽  
Zhifeng Wang ◽  
Weimin Zhao ◽  
Chunling Qin
Keyword(s):  
Mechanical Properties ◽  
Solid Solution ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Specific Surface Area ◽  
High Entropy Alloy ◽  
Face Centered Cubic ◽  
High Entropy ◽  
Hierarchical Porous

High-entropy alloys (HEAs) present excellent mechanical properties. However, the exploitation of chemical properties of HEAs is far less than that of mechanical properties, which is mainly limited by the low specific surface area of HEAs synthesized by traditional methods. Thus, it is vital to develop new routes to fabricate HEAs with novel three-dimensional structures and a high specific surface area. Herein, we develop a facile approach to fabricate nanoporous noble metal quasi-HEA microspheres by melt-spinning and dealloying. The as-obtained nanoporous Cu30Au23Pt22Pd25 quasi-HEA microspheres present a hierarchical porous structure with a high specific surface area of 69.5 m2/g and a multiphase approximatively componential solid solution characteristic with a broad single-group face-centered cubic XRD pattern, which is different from the traditional single-phase or two-phase solid solution HEAs. To differentiate, these are named quasi-HEAs. The synthetic strategy proposed in this paper opens the door for the synthesis of porous quasi-HEAs related materials, and is expected to promote further applications of quasi-HEAs in various chemical fields.

Sign in / Sign up

Export Citation Format

Share Document