Engineering covalent organic frameworks in the modulation of photocatalytic degradation of pollutants under visible light conditions

2021 ◽  
Vol 22 ◽  
pp. 100548
Author(s):  
A. Jiménez-Almarza ◽  
A. López-Magano ◽  
R. Cano ◽  
B. Ortín-Rubio ◽  
D. Díaz-García ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Covalent Organic Frameworks ◽  
Light Conditions ◽  
Degradation Of Pollutants

Photocatalytic Activity of Bismuth Ferrite Nanoparticles Synthesized via Sol-Gel Route

2019 ◽  
Vol 233 (5) ◽  
pp. 595-607 ◽  
Author(s):  
Mohsin Siddique ◽  
Noor Muhammad Khan ◽  
Muhammad Saeed
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Irradiation Time ◽  
Bismuth Ferrite ◽  
Sol Gel ◽  
Reaction System ◽  
Light Conditions ◽  
X Ray Diffraction ◽  
Light Region ◽  
Gel Technique

Abstract Nanosized, magnetically separable bismuth ferrite (BFO) nanoparticles, pertaining a crystallite size in the range of 14–15 nm were prepared via facile sol-gel technique. The product was characterized by scanning electron microscopy, X-ray diffraction, and Fourier-transform infrared spectroscopy. The product was explored for the photocatalytic mineralization of rhodamine B (RB) dye in aqueous medium. The effect of different investigational parameters such as amount of photocatalyst, initial dye concentration and irradiation time on the photocatalytic degradation of RB was studied. The results reveal that the catalyst shows good degrading ability under normal pH and visible light conditions. BFO nanoparticles demonstrated a strong absorption ability in the visible-light region, which lead to efficient photocatalytic degradation of RB dye The reaction system was heterogeneous in nature in which the catalyst can be separated by a normal magnet.

Imine‐Based Covalent Organic Frameworks as Photocatalysts for Metal Free Oxidation Processes under Visible Light Conditions

ChemCatChem ◽  
2019 ◽  
Vol 11 (19) ◽  
pp. 4916-4922 ◽  
Author(s):  
Alicia Jiménez‐Almarza ◽  
Alberto López‐Magano ◽  
Leyre Marzo ◽  
Silvia Cabrera ◽  
Rubén Mas‐Ballesté ◽  
...  
Keyword(s):  
Visible Light ◽  
Covalent Organic Frameworks ◽  
Light Conditions ◽  
Oxidation Processes ◽  
Metal Free ◽  
Free Oxidation

In situ assembly of CQDs/Bi2WO6 for highly efficient photocatalytic degradation of VOCs under visible light

2020 ◽  
Vol 44 (8) ◽  
pp. 3455-3462
Author(s):  
Yangqing Liu ◽  
Changjun Zhu ◽  
Jingwen Sun ◽  
Yan Ge ◽  
Fujiao Song ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Hybrid Materials ◽  
Highly Efficient ◽  
Degradation Of Pollutants

A facile strategy of the assembly of CQD/Bi2WO6 hybrid materials, which exhibit highly efficient photocatalytic degradation of pollutants under visible light.

Cyano-rich mesoporous carbon nitride nanospheres for visible-light-driven photocatalytic degradation of pollutants

2018 ◽  
Vol 5 (12) ◽  
pp. 2966-2977 ◽  
Author(s):  
Chang-Bin Chen ◽  
Chen-Xuan Li ◽  
Ying-Jie Zhang ◽  
Yun-Jie Wang ◽  
Jia-Yuan Lu ◽  
...  
Keyword(s):  
Visible Light ◽  
Environmental Pollution ◽  
Photocatalytic Degradation ◽  
Pollution Control ◽  
Mesoporous Carbon ◽  
Carbon Nitride ◽  
Practical Application ◽  
Visible Light Driven ◽  
Mesoporous Carbon Nitride ◽  
Degradation Of Pollutants

Visible-light-responsive photocatalysis offers exciting opportunities for sustainable environmental pollution control, but the unsatisfactory photoactivity of the existing photocatalysts impedes its practical application.

Green synthesis, photocatalytic and photoelectrochemical performance of an Au–Graphene nanocomposite

RSC Advances ◽  
2015 ◽  
Vol 5 (34) ◽  
pp. 26897-26904 ◽  
Author(s):  
Mohammad Ehtisham Khan ◽  
Mohammad Mansoob Khan ◽  
Moo Hwan Cho
Keyword(s):  
Visible Light ◽  
Green Synthesis ◽  
Photocatalytic Degradation ◽  
Photoelectrochemical Performance ◽  
Graphene Nanocomposite ◽  
Degradation Of Pollutants

Visible light-induced photocatalytic degradation of pollutants using an Au–Graphene nanocomposite.

scholarly journals Novel Removal of Diazinon Pesticide by Adsorption and Photocatalytic Degradation of Visible Light-Driven Fe-TiO2/Bent-Fe Photocatalyst

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Nguyen Minh Phuong ◽  
Ngoc Chau Chu ◽  
Doan Van Thuan ◽  
Minh Ngoc Ha ◽  
Nguyen Thi Hanh ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Point Of Zero Charge ◽  
Light Sources ◽  
Light Conditions ◽  
Removal Experiments ◽  
Visible Light Driven ◽  
Degradation Activity ◽  
Removal Processes ◽  
Synthesized Materials

In the study, Fe was used as a dopant to enhance photocatalytic activity of TiO2. Then, the Fe-doped TiO2 was deposited on bentonite, which was pillared by Fe. The synthesized materials were characterized by SEM, XRD, UV-Vis, BET, and point of zero charge (pHPZC). Then, the synthesized materials were used for diazinon removal under both dark and visible light conditions to investigate adsorption and photocatalytic degradation abilities of the synthesized materials. The maximum diazinon adsorption capacity of the synthesized Fe-TiO2/Bent-Fe was 27.03 mg/g. The obtained results indicated that the Fe-TiO2/Bent-Fe exhibited high photocatalytic degradation activity for removal of diazinon even under visible light. The diazinon removal experiments were also conducted using different photocatalyst dosages, under different pH and light sources to figure the optimal conditions for removal processes. The obtained results indicated that optimal photocatalyst dosage and pH were 0.5 g/L and 4.5, respectively. Finally, the natural light generated from solar could be suitable used for diazinon removal by the synthesized Fe-TiO2/Bent-Fe.

Synergetic adsorption and photocatalytic degradation of pollutants over 3D TiO2–graphene aerogel composites synthesized via a facile one-pot route

2016 ◽  
Vol 15 (8) ◽  
pp. 1012-1019 ◽  
Author(s):  
Jing-Jie Zhang ◽  
Yu-Hui Wu ◽  
Jin-Ya Mei ◽  
Guang-Ping Zheng ◽  
Ting-Ting Yan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Graphene Aerogel ◽  
One Pot ◽  
Visible Light Photocatalytic Activity ◽  
Adsorption Capacities ◽  
Self Assembled ◽  
Visible Light Photocatalytic ◽  
Degradation Of Pollutants

A series of 3D TiO2–GA composites were successfully self-assembled, which exhibited excellent adsorption capacities and visible light photocatalytic activity in the degradation of RhB.

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