Sheet-on-belt branched TiO2(B)/rGO powders with enhanced photocatalytic activity

TiO2(B) is usually adopted to construct phase junctions with anatase TiO2 for applications in photocatalysis to facilitate charge separation; its intrinsic photocatalytic activity, especially when in the form of one- or three-dimensional nanostructures, has been rarely reported. In this study, a sheet-on-belt branched TiO2(B) powder was synthesized with the simultaneous incorporation of reduced graphene oxide (rGO). The monophase, hierarchically nanostructured TiO2(B) exhibited a reaction rate constant 1.7 times that of TiO2(B)/rGO and 2.9 times that of pristine TiO2(B) nanobelts when utilized to assist the photodegradation of phenol in water under UV light illumination. The enhanced photocatalytic activity can be attributed to the significantly increased surface area and enhanced charge separation.

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One-pot low-temperature synthesis of TiO2 nanowire/rGO composites with enhanced photocatalytic activity

RSC Advances ◽

10.1039/c6ra16484f ◽

2016 ◽

Vol 6 (96) ◽

pp. 94092-94097 ◽

Cited By ~ 10

Author(s):

Huan Xing ◽

Wei Wen ◽

Jin-Ming Wu

Keyword(s):

Photocatalytic Activity ◽

Reaction Rate ◽

Uv Light ◽

Reaction Rate Constant ◽

Light Illumination ◽

Low Temperature Synthesis ◽

Temperature Synthesis ◽

One Pot ◽

Tio2 Nanowire

In situ growth of TiO2 nanowires on graphene oxide was achieved at 80 °C in an open atmosphere. The optimized TiO2/rGO hybrid exhibited a reaction rate constant 5.5 times that of TiO2 nanowires towards photodegradations of rhodamine B in water under the UV light illumination.

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Effective charge separation and enhanced photocatalytic activity by the heterointerface in MoS2/reduced graphene oxide composites

RSC Advances ◽

10.1039/c6ra10923c ◽

2016 ◽

Vol 6 (65) ◽

pp. 60318-60326 ◽

Cited By ~ 14

Author(s):

Long Zhang ◽

Lan Sun ◽

Shuai Liu ◽

Yuhong Huang ◽

Kewei Xu ◽

...

Keyword(s):

Photocatalytic Activity ◽

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Charge Separation ◽

Effective Charge ◽

Electron Hole ◽

Effective Separation ◽

Reduced Graphene ◽

Oxide Composites

The MoS2/rGO exhibits enhanced photocatalytic activity for degradation of RhB due to effective separation of photo-generated electron–hole pairs by heterointerface.

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Green hydrothermal synthesis of CeO2 NWs–reduced graphene oxide hybrid with enhanced photocatalytic activity

Powder Diffraction ◽

10.1017/s0885715613000663 ◽

2014 ◽

Vol 29 (1) ◽

pp. 8-13 ◽

Cited By ~ 8

Author(s):

K. Huang ◽

M. Lei ◽

Y.J. Wang ◽

C. Liang ◽

C.X. Ye ◽

...

Keyword(s):

Photocatalytic Activity ◽

Graphene Oxide ◽

Reduced Graphene Oxide ◽

Uv Light ◽

Raw Materials ◽

Hydrothermal Condition ◽

Electronic Interaction ◽

Photogenerated Electrons ◽

Reduced Graphene ◽

Loading Amount

In this study, CeO2 nanowires–reduced graphene oxide hybrids (CeO2 NWs–RGO) were synthesized by a green hydrothermal method using CeO2 NWs and graphene oxide (GO) as raw materials. During the process of reduction of GO, hydrothermal condition with supercritical water provides thermal and chemical factors to synthesize RGO. The photocatalytic experimental results show that the CeO2 NWs–RGO hybrids exhibit enhanced photocatalytic activity for degradation of Rhodamine B (RhB) under UV-light irradiation. It is found that the degree of photocatalytic activity enhancement strongly depends on the mass ratio of RGO in the hybrids, and the remarkable photocatalytic activity is 20 times that of pristine CeO2 NWs when the loading amount of RGO is 8.0 wt%. The enhancement of photocatalytic activity can be attributed to the excellently elevated absorption ability for the dye through π–π conjugation as well as the effective inhibition of the recombination of photogenerated electrons because of the electronic interaction between CeO2 NWs and RGO sheets.

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Three-Dimensional Zn0.5Cd0.5S/Reduced Graphene Oxide Hybrid Aerogel: Facile Synthesis and the Visible-Light-Driven Photocatalytic Property for Reduction of Cr(VI) in Water

Journal of Nanomaterials ◽

10.1155/2016/6201546 ◽

2016 ◽

Vol 2016 ◽

pp. 1-11 ◽

Cited By ~ 6

Author(s):

Wei Xiao ◽

Wenjie Zhou ◽

Yanhua Zhang ◽

Liangliang Tian ◽

Hongdong Liu ◽

...

Keyword(s):

Photocatalytic Activity ◽

Graphene Oxide ◽

Visible Light ◽

Specific Surface ◽

Reduced Graphene Oxide ◽

Surface Area ◽

Specific Surface Area ◽

Three Dimensional ◽

Reduced Graphene ◽

Visible Light Driven

A series of three-dimensional ZnxCd1-xS/reduced graphene oxide (ZnxCd1-xS/RGO) hybrid aerogels was successfully synthesized based on a one-pot hydrothermal approach, which were subsequently used as visible-light-driven photocatalysts for photoreduction of Cr(VI) in water. Over 95% of Cr(VI) was photoreduced by Zn0.5Cd0.5S/RGO aerogel material within 140 min, and such photocatalytic performance was superior to that of other ZnxCd1-xS/RGO aerogel materials (x≠0.5) and bare Zn0.5Cd0.5S. It was assumed that the enhanced photocatalytic activity of Zn0.5Cd0.5S/RGO aerogel was attributed to its high specific surface area and the preferable synergetic catalytic effect between Zn0.5Cd0.5S and RGO. Besides, Zn0.5Cd0.5S/RGO aerogel materials were robust and durable enough so that they could be reused several times with merely limited loss of photocatalytic activity. The chemical composition, phase, structure, and morphology of Zn0.5Cd0.5S/RGO aerogel material were carefully examined by a number of techniques like XRD, SEM, TEM, BET, Raman characterizations, and so on. It was found that Zn0.5Cd0.5S/RGO aerogel possessed hierarchically porous architecture with the specific surface area as high as 260.8 m2 g−1. The Zn0.5Cd0.5S component incorporated in Zn0.5Cd0.5S/RGO aerogel existed in the form of solid solution nanoparticles, which were uniformly distributed in the RGO matrix.

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Construction of a three-dimensional nest-like lithium ferrite/reduced graphene oxide composite with enhanced visible-light photocatalytic activity

New Journal of Chemistry ◽

10.1039/c6nj01790h ◽

2016 ◽

Vol 40 (8) ◽

pp. 7171-7180 ◽

Cited By ~ 9

Author(s):

Danfeng Zhang ◽

Lei Zhang

Keyword(s):

Photocatalytic Activity ◽

Graphene Oxide ◽

Visible Light ◽

Reduced Graphene Oxide ◽

Visible Light Irradiation ◽

Three Dimensional ◽

Lithium Ferrite ◽

Oxide Composite ◽

Reduced Graphene ◽

Visible Light Photocatalytic

Magnetic separable nest-like LiFe5O8/RGO was synthesized and displayed superior photocatalytic activity under visible-light irradiation because of its unique nest-like structure.

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