scholarly journals Sunlight driven photocatalytic degradation of organic pollutants using a MnV2O6/BiVO4 heterojunction: mechanistic perception and degradation pathways

2021 ◽  
Author(s):  
Karina Bano ◽  
Susheel K. Mittal ◽  
Prit Pal Singh ◽  
Sandeep Kaushal
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Charge Separation ◽  
Effective Charge ◽  
Degradation Pathways ◽  
Heterojunction Structure ◽  
Charge Shift

In the field of photocatalysis, fabrication of a heterojunction structure with effective charge separation at the interface and charge shift to enhance the photocatalytic activity has acquired extensive consideration.

Sustainable one-pot synthesis of strontium phosphate nanoparticles with effective charge carriers for photocatalytic degradation of carcinogenic naphthylamine derivative

2021 ◽  
Author(s):  
Balamurugan Arumugam ◽  
Balamurugan Muthukutty ◽  
Shen-Ming Chen ◽  
Baishnisha Amanulla ◽  
Sayee Kannan Ramaraj
Keyword(s):  
Photocatalytic Degradation ◽  
Charge Separation ◽  
Effective Charge ◽  
Congo Red ◽  
Charge Carriers ◽  
Precipitation Method ◽  
One Pot ◽  
One Pot Synthesis ◽  
Strontium Phosphate

Sustainable one-pot precipitation method was applied for synthesizing strontium phosphate nanoparticles (SrPO NPs) and utilized as effective charge separation photocatalyst for degradation of oncogenic napthylamine derivative (Congo red). Significant photocatalytic...

Antimony sulphoiodide (SbSI), a narrow band-gap non-oxide ternary semiconductor with efficient photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (107) ◽  
pp. 105980-105987 ◽  
Author(s):  
Muthusamy Tamilselvan ◽  
Aninda J. Bhattacharyya
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Band Gap ◽  
Organic Pollutants ◽  
Narrow Band ◽  
Electronic Configuration ◽  
Ternary Semiconductor ◽  
Very High

A highly crystalline 3D urchin-shaped SbSI with an ns2 cationic electronic configuration displays very high and efficient photocatalytic degradation of organic pollutants.

Hierarchical Z-scheme 1D/2D architecture with TiO2 nanowires decorated by MnO2 nanosheets for efficient adsorption and full spectrum photocatalytic degradation of organic pollutants

2020 ◽  
Vol 10 (11) ◽  
pp. 3603-3612
Author(s):  
Jiejing Zhang ◽  
Yajie Hu ◽  
Hong Zheng ◽  
Pengyi Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Organic Pollutant ◽  
Pollutant Removal ◽  
Tio2 Nanowires ◽  
Full Spectrum ◽  
Mno2 Nanosheets ◽  
Excellent Stability

A novel hierarchical 1D/2D TiO2/MnO2 composite shows superior adsorption, full spectrum photocatalytic activity and excellent stability for organic pollutant removal.

Effective charge separation and enhanced photocatalytic activity by the heterointerface in MoS2/reduced graphene oxide composites

RSC Advances ◽  
2016 ◽  
Vol 6 (65) ◽  
pp. 60318-60326 ◽  
Author(s):  
Long Zhang ◽  
Lan Sun ◽  
Shuai Liu ◽  
Yuhong Huang ◽  
Kewei Xu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Charge Separation ◽  
Effective Charge ◽  
Electron Hole ◽  
Effective Separation ◽  
Reduced Graphene ◽  
Oxide Composites

The MoS2/rGO exhibits enhanced photocatalytic activity for degradation of RhB due to effective separation of photo-generated electron–hole pairs by heterointerface.

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+.

scholarly journals Photocatalytic Degradation of Nitrobenzene Using Nanocrystalline TiO2 Photocatalyst Doped with Zn Ions

2017 ◽  
Vol 57 (4) ◽  
Author(s):  
Edgar Alonso Reynoso-Soto ◽  
Sergio Pérez-Sicairos ◽  
Ana Patricia Reyes-Cruzaley ◽  
Christian Leonardo Castro-Riquelme ◽  
Rosa María Félix-Navarro ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Rate Constant ◽  
Apparent Rate Constant ◽  
Tio2 Photocatalyst ◽  
New Materials ◽  
Nanocrystalline Tio2 ◽  
New Applications ◽  
Zn Ions

Photocatalysis is a method widely used in the degradation of organic pollutants of the environment. The development of new materials is very important to improve the photocatalytic properties and to find new applications for TiO<sub>2</sub> as a photocatalyst. In this article we reported the synthesis of a photocatalyst based on TiO<sub>2</sub> doped with Zn<sup>2+</sup> ions highly efficient in the degradation of nitrobenzene. The results of photocatalytic activity experiments showed that the Zn<sup>2+</sup> doped TiO<sub>2</sub> is more active than un-doped TiO<sub>2</sub> catalyst with an efficiency of 99% for the nitrobenzene degradation at 120 min with an apparent rate constant of 35 × 10<sup>-3</sup> min<sup>-1</sup>.

scholarly journals Synergistic effect of Ni–Ag–rutile TiO2 ternary nanocomposite for efficient visible-light-driven photocatalytic activity

RSC Advances ◽  
2020 ◽  
Vol 10 (60) ◽  
pp. 36930-36940 ◽  
Author(s):  
Petri M. Leukkunen ◽  
Ekta Rani ◽  
Assa Aravindh Sasikala Devi ◽  
Harishchandra Singh ◽  
Graham King ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Synergistic Effect ◽  
Visible Light ◽  
Light Absorption ◽  
Charge Separation ◽  
Effective Charge ◽  
Energy Dispersive ◽  
Intimate Contact ◽  
Visible Light Absorption ◽  
Visible Light Driven

Robust photocatalytic activity of Ni–Ag–RTiO2 is attributed to the improved visible light absorption and effective charge separation due to intimate contact between Ni and RTiO2via Ag, as evidenced by Ti3+ in Ti 2p XPS and energy dispersive mapping.

scholarly journals Highly efficient photocatalytic degradation of methylene blue by P2ABSA-modified TiO2 nanocomposite due to the photosensitization synergetic effect of TiO2 and P2ABSA

RSC Advances ◽  
2017 ◽  
Vol 7 (38) ◽  
pp. 23699-23708 ◽  
Author(s):  
Chuanxi Yang ◽  
Wenping Dong ◽  
Guanwei Cui ◽  
Yingqiang Zhao ◽  
Xifeng Shi ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Synergetic Effect ◽  
Degradation Pathways ◽  
Highly Efficient

A photocatalytic activity enhanced mechanism accounting for the photosensitization synergetic effect is proposed, with MB degradation pathways including chromophoric and auxochrome group degradation.

scholarly journals One-Dimensional Nanostructured TiO2for Photocatalytic Degradation of Organic Pollutants in Wastewater

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Ting Feng ◽  
Gen Sheng Feng ◽  
Lei Yan ◽  
Jia Hong Pan
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Photocatalytic Oxidation ◽  
Sol Gel ◽  
Chemical Vapor ◽  
Inorganic Element ◽  
One Dimensional ◽  
Practical Applications ◽  
Excellent Photocatalytic Activity

The present paper reviews the progress in the synthesis of one-dimensional (1D) TiO2nanostructures and their environmental applications in the removal of organic pollutants. According to the shape, 1D TiO2nanostructures can be divided into nanorods, nanotubes, nanowires/nanofibers, and nanobelts. Each of them can be synthesized via different technologies, such as sol-gel template method, chemical vapor deposition, and hydrothermal method. These methods are discussed in this paper, and the recent development of the synthesis technologies is also presented. Furthermore, the organic pollutants, degradation using the synthesized 1D TiO2nanostructures is studied as an important application of photocatalytic oxidation (PCO). The 1D nanostructured TiO2exhibited excellent photocatalytic activity in a PCO process, and the mechanism of photocatalytic degradation of organic pollutants is also discussed. Moreover, the modification of 1D TiO2nanostructures using metal ions, metal oxide, or inorganic element can further enhance the photocatalytic activity of the photocatalyst. This phenomenon can be explained by the suppression of e−-h+pairs recombination rate, increased specific surface area, and reduction of band gap. In addition, 1D nanostructured TiO2can be further constructed as a film or membrane, which may extend its practical applications.

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