Surface doping of nonmetal atoms enhances photocatalytic performance of monolayer GeSe for degradation of organic pollution

2021 ◽  
pp. 139156
Author(s):  
Yafei Zhao ◽  
Xinzhong Li ◽  
Hehe Li ◽  
Liang He
Keyword(s):  
Photocatalytic Performance ◽  
Organic Pollution ◽  
Surface Doping

scholarly journals Preparation of CdS Nanoparticles-TiO2 Nanorod Hererojunction and Their High-Performance Photocatalytic Activity

Catalysts ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 441
Author(s):  
Jianhua Song ◽  
Dedong Zeng ◽  
Yu Xie ◽  
Fayun Zhang ◽  
Shenli Rao ◽  
...  
Keyword(s):  
Specific Surface ◽  
High Performance ◽  
Photocatalytic Oxidation ◽  
Photocatalytic Performance ◽  
Sewage Treatment ◽  
Organic Pollution ◽  
Tio2 Nanorods ◽  
Cds Nanoparticles ◽  
Tio2 Nanorod ◽  
Response Range

As a new and emerging technology, photocatalytic oxidation is widely used in the fields of sewage treatment and organic pollution control. In this study, CdS nanoparticles were prepared at room temperature by an innovative preparation method, then TiO2 nanorod–CdS nanoparticle heterojunction photocatalysts were prepared using the solvothermal method, with TiCl3 used as the precursor for TiO2 nanorods. This study mainly took advantage of the small size of the CdS nanoparticles in combination with TiO2 nanorods, and the resultant heterojunctions had large specific surface areas, thereby increasing the contact area between the catalysts and the contaminants. In addition, due to the lower band gap energy (2.4 eV) of CdS, the photo response range of the heterojunction photocatalysts was also increased. In an experimental study, through photocatalytic performance tests of the catalysts with different weight ratios, it was found that the TiO2(40%)@CdS composite had the best photocatalytic performance and the highest catalytic rate. BET, SEM, and other tests showed that the specific surface area of the TiO2(40%)@CdS composite was the largest. TiO2 nanorods and CdS particles were uniformly distributed in the composite, and the optical response range was extended to the visible light region.

scholarly journals Synthesis of MgFe2O4/Reduced Graphene Oxide Composite and Its Visible-Light Photocatalytic Performance for Organic Pollution

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Fengmin Wu ◽  
Wenlu Duan ◽  
Mei Li ◽  
Hang Xu
Keyword(s):  
Electron Microscopy ◽  
Graphene Oxide ◽  
Visible Light ◽  
Reduced Graphene Oxide ◽  
Photocatalytic Performance ◽  
Light Response ◽  
Organic Pollution ◽  
Reduced Graphene ◽  
Potential Applications ◽  
Electron Hole Pair

Recently, binary metal oxides have been proven to be the most investigated semiconductors due to their high activity for the removal of organic pollutants. In this paper, to improve the photocatalytic efficiency of MgFe2O4, a MgFe2O4/reduced graphene oxide (MFO/rGO) photocatalyst was synthesized by a facile generalized solvothermal method. The morphology, structure, and photocatalytic activities in the degradation of methyl orange (MO) reaction were systematically characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and UV-vis absorption spectroscopy, respectively. The results showed that the MFO/rGO composite exhibited enhanced photocatalytic performance in the photodegradation of MO under visible-light irradiation and reached a maximum degradation rate of 99% within 60 min of irradiation. This excellent photocatalytic performance is attributed to the introduction of rGO in the composite, which can effectively reduce the photoproduction of the electron-hole pair recombination rate. The excellent photocatalytic activity reveals that the MFO/rGO composite photocatalyst is a promising photocatalyst with good visible-light response and has potential applications in the field of water treatment.

Highly efficient and selective photocatalytic CO2 to CO conversion in aqueous solution

2020 ◽  
Vol 56 (27) ◽  
pp. 3851-3854 ◽  
Author(s):  
Xiaomin Chai ◽  
Hai-Hua Huang ◽  
Huiping Liu ◽  
Zhuofeng Ke ◽  
Wen-Wen Yong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Performance ◽  
Aqueous Media ◽  
Highly Efficient ◽  
Co Conversion

A Co-based complex displayed the highest photocatalytic performance for CO2 to CO conversion in aqueous media.

Hydrothermal/Solvothermal Synthesis and Photocatalytic Performance of ZnS Microspheres

2016 ◽  
Vol 31 (5) ◽  
pp. 473 ◽  
Author(s):  
WU Xuan-Rong ◽  
YANG Qiao-Zhen ◽  
ZHAO Yong-Xiang ◽  
LU Yan-Luo
Keyword(s):  
Solvothermal Synthesis ◽  
Photocatalytic Performance

Study of the Photocatalytic Performance of Oxygen-deficient TiO2 Active in Visi-ble Light

2013 ◽  
Vol 27 (12) ◽  
pp. 1301-1305 ◽  
Author(s):  
Xiao-Xin CAO ◽  
Yi-Lin CHEN ◽  
Bi-Zhou LIN ◽  
Bi-Fen GAO
Keyword(s):  
Photocatalytic Performance

Preparation and Photocatalytic Performance of Pt-TiNT@@SiO2 by UV Photoreduction

2014 ◽  
Vol 32 (9) ◽  
pp. 1513-1518
Author(s):  
Sheng WANG ◽  
Yanlong GAO ◽  
Tao WANG ◽  
Dongliang WANG ◽  
Yuanwei DING ◽  
...  
Keyword(s):  
Photocatalytic Performance
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