scholarly journals Investigation of adsorption and photocatalytic activities of in situ cetyltrimethylammonium bromide-modified Bi/BiOCl heterojunction photocatalyst for organic contaminants removal

RSC Advances ◽  
2016 ◽  
Vol 6 (96) ◽  
pp. 93309-93317 ◽  
Author(s):  
Wentao Li ◽  
Feng Xiao ◽  
Hang Su ◽  
Dongsheng Wang ◽  
Xiaofang Yang
Keyword(s):  
Hydrothermal Method ◽  
Organic Contaminants ◽  
Cetyltrimethylammonium Bromide ◽  
Stabilizing Agent ◽  
Photocatalytic Activities ◽  
Contaminants Removal

Bi/BiOCl heterojunction was prepared via a hydrothermal method, using cetyltrimethylammonium bromide (CTAB) as a stabilizing agent.

A simple hydrothermal route for the preparation of HgS nanoparticles and their photocatalytic activities

RSC Advances ◽  
2014 ◽  
Vol 4 (30) ◽  
pp. 15371-15376 ◽  
Author(s):  
Rengaraj Selvaraj ◽  
Kezhen Qi ◽  
Salma M. Z. Al-Kindy ◽  
Mika Sillanpää ◽  
Younghun Kim ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Hydrothermal Route ◽  
Stabilizing Agent ◽  
Photocatalytic Activities

HgS nanoparticles, synthesized by a hydrothermal method using PEG as stabilizing agent, show good photocatalytic behaviour.

Construction of Z-Scheme Bi3TaO7/Zn0.5Cd0.5S composites with high-efficiency for levofloxacin degradation under visible light irradiation

2021 ◽  
Author(s):  
Jingjing Xu ◽  
Yang liu ◽  
xueping li ◽  
Mindong Chen
Keyword(s):  
Visible Light ◽  
Hydrothermal Method ◽  
Visible Light Irradiation ◽  
High Efficiency ◽  
Light Irradiation ◽  
In Situ Growth ◽  
Composite Photocatalysts ◽  
Photocatalytic Activities

Direct Z-scheme Bi3TaO7/Zn0.5Cd0.5S composite photocatalysts were successfully prepared via an in-situ growth hydrothermal method. The photocatalytic activities of composites were investigated by the degradation of levofloxacin under visible light. And...

N/Ti3+-codoped triphasic TiO2/g-C3N4 heterojunctions as visible-light photocatalysts for the degradation of organic contaminants

2019 ◽  
Vol 43 (6) ◽  
pp. 2665-2675 ◽  
Author(s):  
Xiaojiao Yuan ◽  
Mingxuan Sun ◽  
Yuan Yao ◽  
Xiaojing Lin ◽  
Jifeng Shi
Keyword(s):  
Visible Light ◽  
Hydrothermal Method ◽  
Organic Contaminants ◽  
Photocatalytic Performance ◽  
One Step

N/Ti3+-codoped triphasic TiO2/g-C3N4 heterojunctions were successfully prepared by a one-step in situ hydrothermal method, and they demonstrated considerably enhanced photocatalytic performance.

The Dependence of Structure, Morphology, and Photocatalytic Properties of SnO2 Nanoparticles Prepared via In Situ Hydrothermal Method on Annealing Temperature

2021 ◽  
Vol 21 (4) ◽  
pp. 2588-2594
Author(s):  
Pham Van Tuan ◽  
Le Trung Hieu ◽  
Vu Thi Tan ◽  
Tran Thi Quynh Hoa ◽  
La Quynh Nga ◽  
...  
Keyword(s):  
Water Pollution ◽  
Hydrothermal Method ◽  
High Performance ◽  
Tin Dioxide ◽  
Annealing Temperature ◽  
Sno2 Nanoparticles ◽  
Photocatalytic Properties ◽  
Structure Morphology ◽  
Photocatalytic Activities

New high-performance photocatalytic materials are required to effectively treat water pollution. The effect of annealing temperature on the photocatalytic activities of tin dioxide (SnO2) nanoparticles is investigated in this work. SnO2 nanoparticles are prepared via a hydrothermal method and annealing at various temperatures ranging from as-prepared to 900 °C. The size of SnO2 nanoparticles increases from 4 nm to 10 nm with an increase in annealing temperature. The photocatalytic properties of these nanoparticles are evaluated through the photocatalytic degradation of methylene blue under sunlight. Photocatalytic activities decrease significantly with an increase in annealing temperature due to an increase in size and a decrease in the surface area of SnO2 nanoparticles.

Cetyltrimethylammonium bromide- and ethylene glycol-assisted preparation of mono-dispersed indium oxide nanoparticles using hydrothermal method

2014 ◽  
Vol 68 (8) ◽  
Author(s):  
Selvakumar Dhanasingh ◽  
Dharmaraj Nallasamy ◽  
Saravanan Padmanapan ◽  
Vinod Padaki
Keyword(s):  
Ethylene Glycol ◽  
Hydrothermal Method ◽  
Indium Oxide ◽  
Cetyltrimethylammonium Bromide ◽  
Oxide Nanoparticles ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Transmission Electron ◽  
Diffraction Patterns

AbstractThe influence of cetyltrimethylammonium bromide and ethylene glycol on the size and dispersion of indium oxide nanoparticles prepared under hydrothermal conditions was investigated. The precursor compound, indium hydroxide, obtained by the hydrothermal method in the absence as well as the presence of cetyltrimethylammonium bromide, was converted to indium oxide by sintering at 400°C. The formation of nanoscale indium oxide upon sintering was ascertained by the characteristic infrared adsorption bands and X-ray diffraction patterns of indium oxide. Transmission electron microscopy and band gap values confirmed that the cetyltrimethylammonium bromide facilitated the formation of indium oxide nanoparticles smaller in size and narrower in distribution than those prepared without the assistance of cetyltrimethylammonium bromide.

Insights into the Role of In-situ and Ex-situ Hydrogen Peroxide for Enhanced Ferrate(VI) Towards Oxidation of Organic Contaminants

2021 ◽  
pp. 117548
Author(s):  
Mengfan Luo ◽  
Hongyu Zhou ◽  
Peng Zhou ◽  
Leiduo Lai ◽  
Wen Liu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Contaminants ◽  
Ex Situ

Construction of Hierarchical ZnIn2S4/C3N4 Heterojunction for Enhanced Photocatalytic Degradation of Tetracycline

2022 ◽  
Author(s):  
Feng Min ◽  
Zhengqing Wei ◽  
Zhen Yu ◽  
Yu-Ting Xiao ◽  
Shien Guo ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Organic Contaminants ◽  
Charge Separation ◽  
Active Sites ◽  
In Situ Growth ◽  
Efficient Charge

Both efficient charge separation and sufficiently exposed active sites are critical limiting for solar-driven organic contaminants degradation. Herein, we describe a hierarchical heterojunction photocatalyst fabricated by in situ growth of...

Enhanced Photocatalytic Activity of Agbr Photocatalyst via Constructing Heterogeneous Junctions With Reduced Graphene

2021 ◽  
Author(s):  
Tongtong Zhang ◽  
Qi Yin ◽  
Menghan Zhang ◽  
Siyu Zhang ◽  
Yanning Shao ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Organic Contaminants ◽  
Degradation Mechanism ◽  
Silver Bromide ◽  
Active Components ◽  
Transient Photocurrent ◽  
Photogenerated Electrons ◽  
Reduced Graphene ◽  
Photocatalytic Activities ◽  
Photocatalytic Degradation Mechanism

Abstract A series of rGO/AgBr heterojunction photocatalysts were fabricated through a facile solvothermal method. The rGO/AgBr heterostructures were characterized by XPS, XRD, UV-Vis DRS, SEM, TEM, PL and the transient photocurrent responses. The XRD, SEM, XPS and TEM analyzes indicated that the graphene and silver bromide were successfully compounded without other impurities. The UV-Vis DRS exhibited that the composites have better optical properties than pure silver bromide. The PL and the transient photocurrent responses demonstrated that the addition of graphene significantly promotes the separation of photogenerated electrons and holes. Subsequently, the photocatalytic activities of rGO/AgBr composites were studied by degrading Rhodamine B (RhB). It turned out that the degradation rate of RhB by the rGO/AgBr heterojunction photocatalysts were significantly higher than that by pure AgBr. What’s more, to study the photocatalytic degradation mechanism of RhB by rGO/AgBr heterostructures, the trapping experiments were used to identify the main active components. This work confirmed that the photocatalytic degradation performance of the catalyst was greatly improved after doping graphene, which provided certain data support for degradation of organic contaminants in water.

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