Study of the enhanced visible-light-sensitive photocatalytic activity of Cr2O3-loaded titanate nanosheets for Cr(vi) degradation and H2 generation

2017 ◽  
Vol 7 (11) ◽  
pp. 2283-2297 ◽  
Author(s):  
Junqian Ding ◽  
Julan Ming ◽  
Dingze Lu ◽  
Wenhui Wu ◽  
Min Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Catalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
Large Surface Area ◽  
H2 Generation ◽  
Titanate Nanosheets

Cr2O3-loaded titanate nanosheets with large surface area show excellent visible-light catalytic activity for Cr(vi) degradation and H2 generation.

Polycondensation of guanidine hydrochloride into a graphitic carbon nitride semiconductor with a large surface area as a visible light photocatalyst

2014 ◽  
Vol 4 (9) ◽  
pp. 3235-3243 ◽  
Author(s):  
Lei Shi ◽  
Lin Liang ◽  
Fangxiao Wang ◽  
Jun Ma ◽  
Jianmin Sun
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
Recombination Rate ◽  
Carbon Nitride ◽  
Guanidine Hydrochloride ◽  
Large Surface Area ◽  
Graphitic Carbon Nitride ◽  
Visible Light Photocatalyst ◽  
Nitride Semiconductor

g-C3N4 prepared from guanidine hydrochloride exhibited a large surface area and a reduced recombination rate of electrons and holes, leading to improved photocatalytic activity for degrading RhB under visible light.

A mesoporous “shell-in-shell” structured nanocatalyst with large surface area, enhanced synergy, and improved catalytic performance for Suzuki–Miyaura coupling reaction

2014 ◽  
Vol 50 (82) ◽  
pp. 12356-12359 ◽  
Author(s):  
Baocang Liu ◽  
Yuefang Niu ◽  
Yan Li ◽  
Fan Yang ◽  
Jiamin Guo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Surface Area ◽  
Coupling Reaction ◽  
Catalytic Performance ◽  
Large Surface Area ◽  
Mesoporous Shell

A novel mesoporous “shell-in-shell” structured nanoreactor (@Pd/meso-TiO2/Pd@meso-SiO2) shows superior catalytic activity, stability, and selectivity for Suzuki–Miyaura coupling reaction.

Preparation of TiO2 ultrafine nanopowder with large surface area and its photocatalytic activity for gaseous nitrogen oxides

2011 ◽  
Vol 206 (3) ◽  
pp. 306-311 ◽  
Author(s):  
Sungmin Chin ◽  
Eunseuk Park ◽  
Minsu Kim ◽  
Juyoung Jeong ◽  
Gwi-Nam Bae ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Nitrogen Oxides ◽  
Surface Area ◽  
Large Surface Area ◽  
Gaseous Nitrogen

MXenes for Gas and Biological Sensor

2021 ◽  
pp. 107-138
Keyword(s):  
Thermal Conductivity ◽  
Catalytic Activity ◽  
Surface Area ◽  
Large Surface Area ◽  
High Thermal Conductivity ◽  
Two Dimensional ◽  
Gas Removal ◽  
Research Platform ◽  
Experimental Approaches ◽  
Biosensor Applications

Recent advancement of two dimensional MXene nanomaterial offers promise in gases and biosensor areas owing to its large surface area, high thermal conductivity, remarkable safety and excellent catalytic activity traits. The current chapter aimed to review the fundamental and technological aspects of MXenes, including myriad synthesis techniques and structural as well as electronic characteristics of these compounds. The features elucidated in the subsequent sections, examined by both theoretical and experimental approaches and potentialities of MXenes in the gas removal and biosensor applications. Several challenges and exciting future opportunities of this research platform are lastly summarized.

Effects of Synthesis Conditions on the Crystalline Phases and Photocatalytic Activities of Silver Vanadates via Hydrothermal Method

2009 ◽  
Vol 1171 ◽  
Author(s):  
Chao-Ming Huang ◽  
Guan T. Pan ◽  
Lung C. Chen ◽  
C.K. Thomas Yang ◽  
Wen S. Chang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
Synthesis Method ◽  
Stoichiometric Ratio ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
Synthesis Conditions ◽  
Vis Spectroscopy ◽  
Visible Light Driven

AbstractVisible-light-driven Ag3VO4 photocatalysts were successfully synthesized using low-temperature hydrothermal synthesis method. Under various hydrothermal conditions, the structures of silver vanadates were tuned by manipulating the hydrothermal time and the ratio of silver to vanadium. X-ray diffraction (XRD) results reveal that the powders prepared in a stoichiometric ratio consisted of pure α-Ag3VO4 or mixed phases of Ag4V2O7 and α-Ag3VO4. With increasing the Ag-to-V mole ratio to 6:1, the resulting samples were identified as pure monoclinic structure α-Ag3VO4. UV-vis spectroscopy indicated that silver vanadate particles had strong visible light absorption with associated band gaps in the range of 2.2-2.5 eV. The sample synthesized in the excess silver exhibited higher photocatalytic activity than that synthesized in a stoichiometric ratio. The powder synthesized at silver-rich at 140℃ for 4 h (SHT4) exhibited the highest photocatalytic activity among all samples. The reactivity of SHT4 (surface area, 3.52 m2 g-1) on the decomposition of gaseous benzene was about 16 times higher than that of P25 (surface area, 49.04 m2 g-1) under visible light irradiation. A well developed crystallinity of Ag3VO4 of SHT 4 was considered to enhance the photocatalytic efficiency.

Graphene nanohybrids for enhanced catalytic activity and large surface area

2018 ◽  
Vol 9 (01) ◽  
pp. 27-36 ◽  
Author(s):  
Sabeen Fatima ◽  
S. Irfan Ali ◽  
Daniyal Younas ◽  
Amjad Islam ◽  
Deji Akinwande ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Surface Area ◽  
Large Surface Area ◽  
Image Position

Abstract

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