Mg0.8Zn0.2O microspheres: preparation, characterization and application for degrading organic dyes

CrystEngComm ◽  
2020 ◽  
Vol 22 (7) ◽  
pp. 1273-1285 ◽  
Author(s):  
Yajun Zheng ◽  
Liyun Cao ◽  
Gaoxuan Xing ◽  
Jianfeng Huang ◽  
Zhiping Zhang

Photocatalytic degradation of organic pollutants in wastewater is one of the most promising strategies for environmental remediation, and photocatalysts as the prerequisite have received considerable attention.

2015 ◽  
Vol 3 (6) ◽  
pp. 2617-2627 ◽  
Author(s):  
K. Girija ◽  
S. Thirumalairajan ◽  
Valmor R. Mastelaro ◽  
D. Mangalaraj

Morphology controlled synthesis of β-Ga2O3 microspheres comprised of nanospheres exhibit excellent ultraviolet light photocatalytic performance towards RhB and MB organic dyes.


RSC Advances ◽  
2021 ◽  
Vol 11 (39) ◽  
pp. 24044-24053
Author(s):  
Yuehui Tai ◽  
Yu Zhang ◽  
Jinlong Sun ◽  
Fuyue Liu ◽  
Haoran Tian ◽  
...  

Upconversion heterojunction synergistic effect for photocatalytic degradation of organic pollutants.


Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6143
Author(s):  
Dhanapal Vasu ◽  
Yongsheng Fu ◽  
Arjunan Karthi Keyan ◽  
Subramanian Sakthinathan ◽  
Te-Wei Chiu

Environmental pollution is a major threat that increases day by day due to various activities. A wide variety of organic pollutants enter the environment due to petrochemical activities. Organic contamination can be unsafe, oncogenic, and lethal. Due to environmental issues worldwide, scientists and research communities are focusing their research efforts on this area. For the removal of toxic organic pollutants from the environment, photocatalysis-assisted degradation processes have gained more attention than other advanced oxidation processes (AOPs). In this manuscript, we report a novel photocatalysis of copper and lanthanum incorporating cerium oxide (CeO2) loaded on graphene oxide (Cu/La/CeO2/GO) nanocomposites successfully synthesized by hydrothermal techniques. XRD results showed the presence of dopant ions and a crystalline structure. FESEM images showed that the surface morphology of the synthesized nanocomposites formed a rod-like structure. The highlight of this study is the in-situ synthesis of the novel Cu/La/CeO2/GO nanocomposites, which manifest higher photodegradation of harmful organic dyes (Rhodamine B (RhB), Sunset Yellow (SY), and Cibacron Red (CR)). In Cu/La/CeO2/GO nanocomposites, the dopant materials restrict the rapid recombination of photoinduced electron–hole pairs and enhance the photocatalytic activity. The degradation percentages of RhB, SY, and CR dye solution are 80%, 60%, and 95%, respectively. In summary, the synthesized nanocomposites degrade toxic organic dyes with the help of visible light and are suitable for future industrial applications.


RSC Advances ◽  
2017 ◽  
Vol 7 (50) ◽  
pp. 31365-31371 ◽  
Author(s):  
Rong-Mei Kong ◽  
Yan Zhao ◽  
Yiqun Zheng ◽  
Fengli Qu

ZnO/CdS@ZIF-8 core–shell nanocomposites were fabricated which exhibited remarkable coherent function for adsorption and photocatalytic degradation of organic pollutants.


2015 ◽  
Vol 44 (39) ◽  
pp. 17251-17260 ◽  
Author(s):  
Sheifali Shukla ◽  
Savita Chaudhary ◽  
Ahmad Umar ◽  
Ganga Ram Chaudhary ◽  
S. K. Mehta

The current work revealed the comparative analysis of bare and surface functionalized tungsten trioxide (WO3) nanoparticles towards the photocatalytic degradation of organic dyes and chemical sensing application.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Mingyue Hu ◽  
Yingnan Quan ◽  
Shuo Yang ◽  
Rui Su ◽  
Huilian Liu ◽  
...  

AbstractEmerging technologies in the field of environmental remediation are becoming increasingly significant owing to the increasing demand for eliminating significant amounts of pollution in water, soil, and air. We designed and synthesized MoS2/Fe2O3 heterojunction nanocomposites (NCs) as multifunctional materials that are easily separated and reused. The trace detection performance of the prepared sample was examined using bisphenol A (BPA) as the probe molecule, with limits of detection as low as 10−9 M; this detection limit is the lowest among all reported semiconductor substrates. BPA was subjected to rapid photocatalytic degradation by MoS2/Fe2O3 NCs under ultraviolet irradiation. The highly recyclable MoS2/Fe2O3 NCs exhibited photo-Fenton catalytic activity for BPA and good detection ability when reused as a surface-enhanced Raman scattering (SERS) substrate after catalysis. The SERS and photocatalysis mechanisms were proposed while considering the effects of the Z-scheme charge-transfer paths, three-dimensional flower-like structures, and dipole–dipole coupling. Moreover, the prepared MoS2/Fe2O3 NCs were successfully applied in the detection of BPA in real lake water and milk samples. Herein, we present insights into the development of MoS2/Fe2O3 materials, which can be used as multifunctional materials in chemical sensors and in photocatalytic wastewater treatments for the removal of recalcitrant organic pollutants.


2021 ◽  
Vol 6 (14) ◽  
pp. 3360-3369
Author(s):  
Rani P. Barkul ◽  
Radhakrishna S. Sutar ◽  
Meghshyam K. Patil ◽  
Sagar D. Delekar

2020 ◽  
Author(s):  
Kaviyapriya Kirubanithy ◽  
Jayaraj Santhosh Kumar ◽  
Rosalin Beura ◽  
Paramasivam Thangadurai

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