Facile Preparation of the Single Crystalline In2S3 Nanosheets with Highly Efficient Photocatalytic Activity

2013 ◽  
Vol 834-836 ◽  
pp. 8-11
Author(s):  
Hao Yong Yin ◽  
Jun Hong Tang ◽  
Chun Jie Yan ◽  
Qiu Lin Nie ◽  
Dan Wu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Organic Pollutants ◽  
Hydrothermal Process ◽  
Photocatalytic Decomposition ◽  
Single Crystalline ◽  
Highly Efficient ◽  
Sem And Tem ◽  
Facile Preparation ◽  
Facile Hydrothermal Process

The single crystalline In2S3 nanosheets with highly efficient photocatalytic activity have been controllably synthesized via a facile hydrothermal process without adding any surfactant. The morphologies of the nanosheets were characterized by SEM and TEM. The results show the diameter of the nanosheets ranges from 100nm to 400nm. The photocatalytic decomposition of methyl orange on the catalyst shows it has much higher photoactivity than that of nanoTiO2 which means it may be more capable to be used as photocatalyst in decomposition of organic pollutants.

An Inexpensive, Stable and Highly Efficient Photocatalyst for Degradation of Organic Dyes in Water: Core-Shell Montmorillonite-TiO2 Colloids

2013 ◽  
Vol 864-867 ◽  
pp. 404-407
Author(s):  
Shi Zhao Kang ◽  
Tan Wu ◽  
Xiang Qing Li ◽  
Yi Lun Zhou ◽  
Jin Mu
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Organic Dyes ◽  
Hydrothermal Process ◽  
Core Shell ◽  
X Ray Diffraction ◽  
X Ray ◽  
Highly Efficient ◽  
Transmission Electron ◽  
The Stability

Core-shell montmorillonite-TiO2 colloids were prepared in a hydrothermal process and characterized with transmission electron microscope, powder X-ray diffraction analysis, Brunauer-Emmett-Teller analysis and UV-vis spectra. Afterwards, their photocatalytic activity was investigated under UV irradiation using methyl orange as a model contaminant. In addition, the stability of the core-shell montmorillonite-TiO2 colloids was investigated by repeatedly performing methyl orange photocatalytic degradation experiments. The results indicate the as-prepared core-shell montmorillonite-TiO2 colloids are a highly efficient photocatalyst for the degradation of organic dyes in water. And this photocatalytic activity remains almost unchanged after eight successive cycles.

Highly Active S-Doping MnFe2O4 by Synthesis and Photo-Fenton Catalytic Property Research

2014 ◽  
Vol 1073-1076 ◽  
pp. 795-798
Author(s):  
Yu Niu ◽  
Fu Ying Li ◽  
Ren Zhang Wang
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light Irradiation ◽  
Hydrothermal Process ◽  
Reflectance Spectroscopy ◽  
Basic Fuchsin ◽  
X Ray ◽  
Ph Values ◽  
Highly Active ◽  
Degradation Ratio

Composite oxide MnFe2O4 have been synthesized via the hydrothermal process and then modified by S=O. These compounds were characterized by X-ray diffusions, and ultraviolet-visible diffusion reflectance spectroscopy. MnFe2O4 exhibits stronger photocatalytic activity, with 95.5% degradation ratio of methyl orange and 91% degradation ratio of basic fuchsin, after 120 minutes visible-light irradiation in the presence of H2O2. In addition, the effect of pH values on photocatalytic activity were also investigated.

Electron beam irradiation treatment of Ag/Bi2WO6/CdWO4 heterogeneous material with enhanced photocatalytic activity

2019 ◽  
Vol 43 (35) ◽  
pp. 13764-13774 ◽  
Author(s):  
Renrui Sun ◽  
Jing Wang ◽  
Tianli Yang ◽  
Ren He ◽  
Kehui Xue ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Electron Beam ◽  
Organic Pollutants ◽  
Electron Beam Irradiation ◽  
Heterogeneous Material ◽  
Beam Irradiation ◽  
Highly Efficient ◽  
Irradiation Treatment ◽  
Inorganic And Organic

Ag/Bi2WO6/CdWO4 ternary heterostructure materials treated by electron beam irradiation are used for the highly efficient degradation of inorganic and organic pollutants.

scholarly journals Synthesis and enhanced photocatalytic performance of 0D/2D CuO/tourmaline composite photocatalysts

2020 ◽  
Vol 11 ◽  
pp. 407-416 ◽  
Author(s):  
Changqiang Yu ◽  
Min Wen ◽  
Zhen Tong ◽  
Shuhua Li ◽  
Yanhong Yin ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Organic Contaminants ◽  
Hydrothermal Process ◽  
Charge Carriers ◽  
Molecular Vibration ◽  
Surface Element ◽  
Composite Photocatalysts ◽  
Excellent Photocatalytic Activity ◽  
Photoinduced Charge ◽  
Facile Hydrothermal Process

Photocatalysis is considered to be a green and promising technology for transforming organic contaminants into nontoxic products. In this work, a CuO/tourmaline composite with zero-dimensional/two-dimensional (0D/2D) CuO architecture was successfully obtained via a facile hydrothermal process, and its photocatalytic activity was evaluated by the degradation of methylene blue (MB). Surface element valence state and molecular vibration characterization revealed that CuO chemically interacted with tourmaline via Si–O–Cu bonds. The specific surface area of the CuO/tourmaline composite (23.60 m2 g−1) was larger than that of the pristine CuO sample (3.41 m2 g−1). The CuO/tourmaline composite exhibited excellent photocatalytic activity for the degradation of MB, which was ascribed to the increase in the quantity of the adsorption-photoreactive sites and the efficient utilization of the photoinduced charge carriers. This study provides a facile strategy for the construction of 0D/2D CuO structures and the design of tourmaline-based functional composite photocatalysts for the treatment of organic contaminants in water.

scholarly journals CoFe2O4−Fe3O4Magnetic Nanocomposites as Photocatalyst for the Degradation of Methyl Orange Dye

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Debabrata Mishra ◽  
Kula Kamal Senapati ◽  
Chandan Borgohain ◽  
A. Perumal
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Organic Contaminants ◽  
Magnetic Hysteresis ◽  
Hydrothermal Process ◽  
Textile Wastewater ◽  
Band Gap Energy ◽  
Blocking Temperature ◽  
Magnetic Phase Transitions ◽  
Temperature Dependent

We report the investigation of temperature-dependent magnetic properties and photocatalytic activity ofCoFe2O4−Fe3O4magnetic nanocomposites (MNCs) synthesized by hydrothermal process. Room-temperature magnetic hysteresis (M-H) loops result enhanced saturation magnetization of 90 emu/g and coercivity (HC) of 530 Oe forCoFe2O4−Fe3O4MNCs. With decreasing temperature to 20 K,HCincreases from 500 Oe to 6800 Oe, and the M-H loops exhibit exchange coupling feature betweenCoFe2O4andFe3O4. Low- and high-temperature-dependent magnetization measurements confirm that the blocking temperature lies above 300 K and the presence of two magnetic phase transitions corresponding toCoFe2O4andFe3O4, respectively. The photocatalytic activity of the MNCs has been examined on the reduction of methyl orange (MO), a colored compound used in dyeing and printing textiles. The observed results suggest that theCoFe2O4−Fe3O4MNCs act as an excellent photocatalyst on the degradation of organic contaminants and degrade 93% of MO in 5 hours of UV irradiation. The photocatalytic activity of MNCs is attributed to remarkably high band gap energy and small particle size. Also, the MNCs with a reproducible photocatalytic activity are well separable from water media by applying external magnetic field and acts as a promising catalyst for the remediation of textile wastewater.

Single-Crystalline Twinned ZnO Nanoleaf Structure via a Facile Hydrothermal Process

2011 ◽  
Vol 11 (3) ◽  
pp. 2175-2184 ◽  
Author(s):  
Jijun Qiu ◽  
Xiaomin Li ◽  
Xiangdong Gao ◽  
Xiaoyan Gan ◽  
Weizhen He ◽  
...  
Keyword(s):  
Hydrothermal Process ◽  
Single Crystalline ◽  
Facile Hydrothermal Process

Cyclodextrin–gold nanocluster decorated TiO2 enhances photocatalytic decomposition of organic pollutants

2018 ◽  
Vol 6 (3) ◽  
pp. 1102-1108 ◽  
Author(s):  
Haiguang Zhu ◽  
Nirmal Goswami ◽  
Qiaofeng Yao ◽  
Tiankai Chen ◽  
Yanbiao Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Organic Pollutants ◽  
Gold Nanoclusters ◽  
Hole Pair ◽  
Photocatalytic Decomposition ◽  
Electron Hole ◽  
Gold Nanocluster ◽  
Electron Hole Pair

We decorated per-6-thio-β-cyclodextrin protected gold nanoclusters on TiO2 nanoparticles to improve photocatalytic activity by inhibiting electron–hole pair recombination and absorbing organic targets via host–guest interactions.

scholarly journals Highly efficient visible light active Cu–ZnO/S-g-C3N4 nanocomposites for efficient photocatalytic degradation of organic pollutants

RSC Advances ◽  
2021 ◽  
Vol 11 (59) ◽  
pp. 37254-37267
Author(s):  
Mohsin Javed ◽  
Muhammad Azam Qamar ◽  
Sammia Shahid ◽  
Hashem O. Alsaab ◽  
Salma Asif
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Light Harvesting ◽  
Highly Efficient ◽  
Visible Light Active

The photocatalytic activity of photocatalyst is severely hampered by limited visible light harvesting and unwanted fast recombination of photogenerated e− and h+.

A composite of single-crystalline Bi2WO6 and polycrystalline BiOCl with a high percentage of exposed (00l) facets for highly efficient photocatalytic degradation of organic pollutants

2019 ◽  
Vol 55 (40) ◽  
pp. 5728-5731 ◽  
Author(s):  
Qing Yang ◽  
Maolan Luo ◽  
Kewei Liu ◽  
Hongmei Cao ◽  
Hongjian Yan
Keyword(s):  
Photocatalytic Degradation ◽  
Molten Salt ◽  
Organic Pollutants ◽  
Molten Salt Method ◽  
Single Crystalline ◽  
Highly Efficient

A composite of single-crystalline Bi2WO6 and polycrystalline BiOCl with a high percentage of exposed (00l) facets was fabricated by the molten salt method (MSM) in the presence of polytetrafluoroethylene (PTFE).

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