Aggregation-induced preparation of ultrastable zinc sulfide colloidal nanospheres and their photocatalytic degradation of multiple organic dyes

2015 ◽  
Vol 17 (22) ◽  
pp. 14532-14541 ◽  
Author(s):  
Wanting Yang ◽  
Xiaoli Liu ◽  
Dong Li ◽  
Louzhen Fan ◽  
Yunchao Li
Keyword(s):  
Photocatalytic Degradation ◽  
Zinc Sulfide ◽  
Colloidal Stability ◽  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Size Dependent

By utilizing an in situ aggregation strategy, we prepared medium-sized ZnS nanospheres with excellent colloidal stability, which demonstrated a size-dependent photocatalytic performance toward the photodegradation of a single dye and binary mixed dyes.

Amine-functionalized metal-organic framework integrated bismuth tungstate (Bi2WO6/NH2-UiO-66) composites for the enhanced solar-driven photocatalytic degradation of ciprofloxacin molecules

2021 ◽  
Author(s):  
Rokesh Karuppannan ◽  
Sakar Mohan ◽  
Trong-On Do
Keyword(s):  
Photocatalytic Degradation ◽  
Photocatalytic Performance ◽  
Metal Organic Framework ◽  
In Situ Growth ◽  
Hydrothermal Technique ◽  
Bismuth Tungstate ◽  
Amine Functionalized ◽  
Metal Organic ◽  
Organic Framework

Amine-functionalized metal-organic framework integrated bismuth tungstate (Bi2WO6/NH2-UiO-66) nanocomposite has been developed by in-situ growth of NH2-UiO-66 on Bi2WO6 micro/nanoflower via hydrothermal technique and studied their photocatalytic performance towards ciprofloxacin degradation...

scholarly journals Microscale flower-like magnesium oxide for highly efficient photocatalytic degradation of organic dyes in aqueous solution

RSC Advances ◽  
2019 ◽  
Vol 9 (13) ◽  
pp. 7338-7348 ◽  
Author(s):  
Yajun Zheng ◽  
Liyun Cao ◽  
Gaoxuan Xing ◽  
Zongquan Bai ◽  
Jianfeng Huang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Degradation ◽  
Magnesium Oxide ◽  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Precipitation Method ◽  
Highly Efficient

Flower-like MgO microparticles with excellent photocatalytic performance in degradation of various organic dyes were synthesized by a facile precipitation method via the reaction between Mg2+ and CO32− at 70 °C.

Ce-/S-codoped TiO2/Sulfonated graphene for photocatalytic degradation of organic dyes

2014 ◽  
Vol 2 (33) ◽  
pp. 13565-13570 ◽  
Author(s):  
Yingying Fan ◽  
Dongxue Han ◽  
Bin Cai ◽  
Weiguang Ma ◽  
Mohsin Javed ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Synergistic Effects ◽  
Composite Action ◽  
Codoped Tio2 ◽  
Sulfonated Graphene

An improved photocatalytic performance of Ce/S–TiO2/SGE based on the synergistic effects of Ce- and S-codoping and the composite action between TiO2 NPs and SGE.

Synthesis and Characterization of WO3and#183;0.33H2O/Ag2MoO4 Composites as a Visible-Light-Driven Photocatalyst for Rhodamine B and Levofloxacin Degradation

2020 ◽  
Vol 42 (6) ◽  
pp. 827-827
Author(s):  
Yun Xuan Fu Yun Xuan Fu ◽  
Yan Li Yan Li ◽  
Tian Long Chang Tian Long Chang ◽  
Xu Tao Liu Xu Tao Liu ◽  
Xiang Feng Wu Xiang Feng Wu ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Organic Dyes ◽  
Degradation Process ◽  
Molar Ratio ◽  
Leading Role ◽  
Visible Light Driven

Visible-light-driven WO3and#183;0.33H2O/Ag2MoO4 composites have been prepared by using an in-situ growth of Ag2MoO4 nanoparticles on the surfaces of WO3and#183;0.33H2O. The photocatalytic activities of the samples were studied by degradation of rhodamine B and levofloxacin dilute solution. The synergistic photocatalytic mechanism was also analyzed. Experimental results reveal that the as-developed hybrids have higher photocatalytic activity than pure samples. When the theoretical molar ratio of WO3and#183;0.33H2O to Na2MoO4and#183;2H2O is 1:0.15, the as-developed hybrids have the highest photocatalytic degradation efficiency of 99.0% for rhodamine B in 45 min and 40.9% for levofloxacin in 120 min. Furthermore, there are chemical bonds between WO3and#183;0.33H2O and Ag2MoO4. In addition, the super oxide radicals play the leading role during the photocatalytic degradation process of the samples. This work will provide reference for treatment of organic dyes and antibiotics pollution in water with using solar energy.

scholarly journals Enhanced Photocatalytic Degradation of Organic Dyes via Defect-Rich TiO2 Prepared by Dielectric Barrier Discharge Plasma

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 720 ◽  
Author(s):  
Yanqin Li ◽  
Wei Wang ◽  
Fu Wang ◽  
Lanbo Di ◽  
Shengchao Yang ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Tio2 Nanoparticles ◽  
Degradation Rate ◽  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Sunlight Irradiation ◽  
Barrier Discharge Plasma ◽  
Ar Plasma ◽  
Degradation Properties

The dye wastewater produced in the printing and dyeing industry causes serious harm to the natural environment. TiO2 usually shows photocatalytic degradation of dye under the irradiation ultravilet light rather than visible light. In this work, a large number of oxygen vacancies and Ti3+ defects were generated on the surface of the TiO2 nanoparticles via Ar plasma. Compared with pristine TiO2 nanoparticles, the as-obtained Ar plasma-treated TiO2 (Ar-TiO2) nanoparticles make the energy band gap reduce from 3.21 eV to 3.17 eV and exhibit enhanced photocatalytic degradation of organic dyes. The Ar-TiO2 obtained exhibited excellent degradation properties of methyl orange (MO); the degradation rate under sunlight irradiation was 99.6% in 30 min, and the photocatalytic performance was about twice that of the original TiO2 nanoparticles (49%). The degradation rate under visible light (λ > 400 nm) irradiation was 89% in 150 min, and the photocatalytic performance of the Ar-TiO2 was approaching ~4 times higher than that of the original TiO2 nanoparticles (23%). Ar-TiO2 also showed good degradation performance in degrading rhodamine B (Rho B) and methylene blue (MB). We believe that this plasma strategy provides a new method for improving the photocatalytic activity of other metal oxides.

Biotemplate Synthesis of Zinc Sulfide Spheres with High Photocatalytic Performance on Organic Dyes

2020 ◽  
Vol 29 (7) ◽  
pp. 4569-4574
Author(s):  
Wenjun Li ◽  
Xinpeng He ◽  
Kaiyao Xin ◽  
Xiangfei He ◽  
Hua Lin ◽  
...  
Keyword(s):  
Zinc Sulfide ◽  
Photocatalytic Performance ◽  
Organic Dyes

In situ formation of SnO2 nanoparticles on cellulose acetate fibrous membranes for the photocatalytic degradation of organic dyes

2020 ◽  
Vol 398 ◽  
pp. 112599 ◽  
Author(s):  
Federica Costantino ◽  
Andrea Armirotti ◽  
Riccardo Carzino ◽  
Luca Gavioli ◽  
Athanassia Athanassiou ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Cellulose Acetate ◽  
Organic Dyes ◽  
Sno2 Nanoparticles ◽  
In Situ Formation ◽  
Fibrous Membranes

scholarly journals Photodegradation Process of Organic Dyes in the Presence of a Manganese-Doped Zinc Sulfide Nanowire Photocatalyst

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5840
Author(s):  
Adam Żaba ◽  
Svitlana Sovinska ◽  
Tetiana Kirish ◽  
Adam Węgrzynowicz ◽  
Katarzyna Matras-Postołek
Keyword(s):  
Photocatalytic Degradation ◽  
Zinc Sulfide ◽  
Organic Dyes ◽  
Synthesis Method ◽  
Visible Region ◽  
Degradation Process ◽  
Single Step ◽  
Radiation Process ◽  
Uv Lamp ◽  
Mn Doped

Zinc sulfide (ZnS) nanowires represent a promising candidate in many fields, including optoelectronics and photocatalysis because of their advantages such as excellent optical properties, chemical stability and an easy-scalable simple synthesis method. In this study, an energy-friendly microwave radiation process was used to develop the single-step, solvothermal process for the growth of manganese-doped zinc sulfide (ZnS) and undoped nanocrystals (NCs) in the forms of nanowires using two short amines as a stabilizer, e.g., ethylenediamine and hydrazine, respectively. ZnS nanowires doped with Mn atoms show absorbance in UV and in the visible region of the spectrum. The photocatalytic degradation of rhodamine B in the presence of Mn-doped and undoped ZnS nanocrystals illuminated with only a 6-W UV lamp has been comprehensively studied. The effect of Mn doping and the presence of a nanocrystal stabilizer on the degradation process was determined. It was found that the efficiency of a photocatalytic degradation process was strongly affected by both factors: the doping process of nanowires with Mn2+ atoms and the attachment of ligands to the nanocrystal surface.

Sign in / Sign up

Export Citation Format

Share Document