One-pot synthesis of Fe2O3/Y2O3@TNS for enhanced photocatalytic and adsorption properties

2020 ◽  
Vol 44 (38) ◽  
pp. 16370-16383
Author(s):  
Pei Wu ◽  
Xiaona Zhao ◽  
Chunhe Li ◽  
Minchen Yang ◽  
Guojun Li ◽  
...  
Keyword(s):  
Specific Surface ◽  
Hydrothermal Method ◽  
Surface Area ◽  
Specific Surface Area ◽  
Adsorption Properties ◽  
Large Specific Surface Area ◽  
Laminar Structure ◽  
One Pot ◽  
One Pot Synthesis

TiO2-based nanosheets (TNS) modified with Fe2O3 and Y2O3 particles (Fe2O3/Y2O3@TNS), possessing a laminar structure with large specific surface area of 382 m2 g−1, were synthesized via a one-pot hydrothermal method.

Guanidine sulfate-assisted synthesis of hexagonal WO3 nanoparticles with enhanced adsorption properties

2015 ◽  
Vol 44 (16) ◽  
pp. 7419-7427 ◽  
Author(s):  
Wanjun Mu ◽  
Mei Li ◽  
Xingliang Li ◽  
Zongping Ma ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Adsorption Capacity ◽  
Surface Area ◽  
Functional Groups ◽  
Specific Surface Area ◽  
Adsorption Properties ◽  
Large Specific Surface Area ◽  
Enhanced Adsorption

The hexagonal WO3 nanowires prepared with the assistance of C2H10N·H2SO4 possess a large specific surface area and numerous adsorption functional groups, consequently improving the Sr2+ adsorption capacity considerably.

Facile one-pot synthesis of MoS2 quantum dots–graphene–TiO2 composites for highly enhanced photocatalytic properties

2015 ◽  
Vol 51 (9) ◽  
pp. 1709-1712 ◽  
Author(s):  
Weiyin Gao ◽  
Minqiang Wang ◽  
Chenxin Ran ◽  
Le Li
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Charge Separation ◽  
One Pot ◽  
Composite Photocatalyst ◽  
One Pot Synthesis ◽  
Light Absorbance

We reported a simple one-pot solvothermal approach to fabricate MoS2 quantum dots (QDs)–graphene–TiO2 (MGT) composite photocatalyst with significant improved photocatalysis property, which is caused by the increased charge separation, visible-light absorbance, specific surface area and reaction sites upon the introduction of MoS2 QDs.

Morphological evolution of hollow NiCo2O4 microspheres and their high pseudocapacitance contribution for Li/Na-ion battery anodes

2018 ◽  
Vol 42 (21) ◽  
pp. 17762-17768 ◽  
Author(s):  
Kangze Dong ◽  
Zhiyuan Wang ◽  
Dan Wang ◽  
Meizhu Sun ◽  
Shaohua Luo ◽  
...  
Keyword(s):  
Specific Surface ◽  
Hydrothermal Method ◽  
Surface Area ◽  
Specific Surface Area ◽  
Morphological Evolution ◽  
Morphology Evolution ◽  
Large Specific Surface Area ◽  
Evolution Mechanism ◽  
Template Free ◽  
Solid Spheres

Hollow urchin-like NiCo2O4 microspheres (∼3 μm) with a large specific surface area (158.57 m2 g−1) have been synthesized by a facile template-free hydrothermal method and a morphology evolution mechanism of “bundles-solid spheres-hollow urchin-like microspheres” was proposed.

scholarly journals Construction of SnO2/graphene-like g-C3N4 with enhanced visible light photocatalytic activity

RSC Advances ◽  
2017 ◽  
Vol 7 (57) ◽  
pp. 36101-36111 ◽  
Author(s):  
Haiyan Ji ◽  
Yamin Fan ◽  
Jia Yan ◽  
Yuanguo Xu ◽  
Xiaojie She ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Specific Surface ◽  
Hydrothermal Method ◽  
Surface Area ◽  
Specific Surface Area ◽  
Photocatalytic Performance ◽  
Large Specific Surface Area ◽  
Environmental Friendly ◽  
Visible Light Photocatalytic

2D/2D SnO2/GL-C3N4 photocatalysts with large specific surface area and high coupling heterointerface extent were synthesized by an environmental friendly hydrothermal method, showing excellent photocatalytic performance on RhB degradation.

scholarly journals Nanocomposite Materials Based on Electrochemically Synthesized Graphene Polymers: Molecular Architecture Strategies for Sensor Applications

Chemosensors ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 149
Author(s):  
André Olean-Oliveira ◽  
Gilberto A. Oliveira Brito ◽  
Celso Xavier Cardoso ◽  
Marcos F. S. Teixeira
Keyword(s):  
Conducting Polymers ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Electrochemical Sensors ◽  
Structural Characteristics ◽  
Low Cost ◽  
Large Specific Surface Area ◽  
Molecular Architecture ◽  
Sensor Applications

The use of graphene and its derivatives in the development of electrochemical sensors has been growing in recent decades. Part of this success is due to the excellent characteristics of such materials, such as good electrical and mechanical properties and a large specific surface area. The formation of composites and nanocomposites with these two materials leads to better sensing performance compared to pure graphene and conductive polymers. The increased large specific surface area of the nanocomposites and the synergistic effect between graphene and conducting polymers is responsible for this interesting result. The most widely used methodologies for the synthesis of these materials are still based on chemical routes. However, electrochemical routes have emerged and are gaining space, affording advantages such as low cost and the promising possibility of modulation of the structural characteristics of composites. As a result, application in sensor devices can lead to increased sensitivity and decreased analysis cost. Thus, this review presents the main aspects for the construction of nanomaterials based on graphene oxide and conducting polymers, as well as the recent efforts made to apply this methodology in the development of sensors and biosensors.

Three-dimensional graphene encapsulated hollow CoSe2-SnSe2 nanoboxes for high performance asymmetric supercapacitors

2022 ◽  
Author(s):  
Kainan Li ◽  
Ke Zheng ◽  
Zhifang Zhang ◽  
Kuan Li ◽  
Ziyao Bian ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Active Sites ◽  
Specific Capacity ◽  
Three Dimensional ◽  
Hollow Structure ◽  
Large Specific Surface Area ◽  
Composite Aerogel

Abstract Construction of metal selenides with a large specific surface area and a hollow structure is one of the effective methods to improve the electrochemical performance of supercapacitors. However, the nano-material easily agglomerates due to the lack of support, resulting in the loss of electrochemical performance. Herein, we successfully design a three-dimensional graphene (3DG) encapsulation-protected hollow nanoboxes (CoSe2-SnSe2) composite aerogel (3DG/CoSe2-SnSe2) via a co-precipitation method coupled with self-assembly route, followed by a high temperature selenidation strategy. The obtained aerogel possesses porous 3DG conductive network, large specific surface area and plenty of reactive active sites. It could be used as a flexible and binder-free electrode after a facile mechanical compression process, which provided a high specific capacitance of 460 F g-1 at 0.5 A g-1, good rate capability of 212.7 F g-1 at 10 A g-1, and excellent cycle stability due to the fast electron/ion transfer and electrolyte diffusion. With the as-prepared 3DG/CoSe2-SnSe2 as positive electrodes and the AC (activated carbon) as negative electrodes, an asymmetric supercapacitor (3DG/CoSe2-SnSe2//AC) was fabricated, which delivered a high specific capacity of 38 F g-1 at 1A g-1 and an energy density of 11.89 W h kg-1 at 749.9 W kg-1, as well as a capacitance retention of 91.1% after 3000 cycles. This work provides a new method for preparing electrode material.

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