High efficiency photocatalytic degradation of indoor formaldehyde by Ag/g-C3N4/TiO2 composite catalyst with ZSM-5 as the carrier

2021 ◽  
pp. 111134
Author(s):  
Weiwen Wang ◽  
Delu Zhang ◽  
Pengxia Sun ◽  
Zhengnan Ji ◽  
Jihai Duan
Keyword(s):  
Photocatalytic Degradation ◽  
High Efficiency ◽  
Composite Catalyst

A novel flower-like Z-type heterojunction CuS/Bi7O9I3 composite catalyst prepared under mild conditions for degradation of antibiotics and sterilization under visible light

2020 ◽  
Vol 7 (10) ◽  
pp. 3074-3087
Author(s):  
Ruixiang Yang ◽  
Hongjuan Li ◽  
Yatao Wang ◽  
Zhijia Zhu ◽  
Chunyan Hu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
High Efficiency ◽  
Antibacterial Properties ◽  
Composite Catalyst ◽  
Mild Conditions

The Z-type heterojunction CuS/Bi7O9I3 composite catalyst prepared at low temperature has high-efficiency antibiotic photocatalytic degradation, photothermal synergy and antibacterial properties.

scholarly journals Electric Field Assisted Femtosecond Laser Preparation of Au@TiO2 Composites with Controlled Morphology and Crystallinity for Photocatalytic Degradation

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3816
Author(s):  
Xiaojie Li ◽  
Xin Li ◽  
Pei Zuo ◽  
Xiaozhe Chen ◽  
Misheng Liang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Electric Field ◽  
Photocatalytic Degradation ◽  
Au Nanoparticles ◽  
High Efficiency ◽  
Free Electron Density ◽  
Pulse Delay ◽  
Dye Pollutants ◽  
Amorphous Tio2 ◽  
Laser Liquid

TiO2 is popular in photocatalytic degradation dye pollutants due to its abundance and its stability under photochemical conditions. Au loaded TiO2 can achieve efficient absorption of visible light and deal with the problem of low conversion efficiency for solar energy of TiO2. This work presents a new strategy to prepare Au nanoparticles-loaded TiO2 composites through electric−field−assisted temporally−shaped femtosecond laser liquid-phase ablation of Au3+ and amorphous TiO2. By adjusting the laser pulse delay and electric field parameters, gold nanoparticles with different structures can be obtained, such as nanospheres, nanoclusters, and nanostars (AuNSs). AuNSs can promote the local crystallization of amorphous TiO2 in the preparation process and higher free electron density can also be excited to work together with the mixed crystalline phase, hindering the recombination between carriers and holes to achieve efficient photocatalytic degradation. The methylene blue can be effectively degraded by 86% within 30 min, and much higher than the 10% of Au nanoparticles loaded amorphous TiO2. Moreover, the present study reveals the crystallization process and control methods for preparing nanoparticles by laser liquid ablation, providing a green and effective new method for the preparation of high-efficiency photocatalytic materials.

The Y‐TiO 2 /5A/NiFe 2 O 4 Composite for the High‐efficiency Adsorption and Photocatalytic Degradation of Norfloxacin under Visible Light

2021 ◽  
Vol 6 (29) ◽  
pp. 7295-7305
Author(s):  
Jing Xu ◽  
Zhihao Ren ◽  
Xiaoyuan Qiu ◽  
Pengfei Zhu ◽  
Dandan Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
High Efficiency

A recyclable self-assembled composite catalyst consisting of Fe3O4-rose bengal-layered double hydroxides for highly efficient visible light photocatalysis in water

2018 ◽  
Vol 54 (96) ◽  
pp. 13587-13590 ◽  
Author(s):  
Yuxing Huang ◽  
Zhuo Xin ◽  
Wenlong Yao ◽  
Qi Hu ◽  
Zhuohua Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Rose Bengal ◽  
Layered Double Hydroxides ◽  
Self Assembly ◽  
High Efficiency ◽  
Composite Catalyst ◽  
Visible Light Photocatalysis ◽  
Organic Transformations ◽  
Double Hydroxides

A novel recyclable composite catalyst (Fe3O4-RB/LDH) formed by stable self-assembly of Fe3O4 NPs, rose bengal, and layered double hydroxides can catalyze various organic transformations with high efficiency in water under visible light irradiation.

scholarly journals Efficiency of Photocatalytic Degradation of Humic Acid Using Magnetic Nanoparticles (Fe-doped TiO2@Fe3O4) in Aqueous Solutions

Health Scope ◽  
2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Hossein Moein ◽  
Gholamreza Nabi Bidhendi ◽  
Naser Mehrdadi ◽  
Hossein Kamani
Keyword(s):  
Magnetic Nanoparticles ◽  
Humic Acid ◽  
Aqueous Solutions ◽  
Photocatalytic Degradation ◽  
High Efficiency ◽  
Sol Gel ◽  
Reaction Times ◽  
Doped Tio2 ◽  
Natural Organic Matters ◽  
Uv Lamp

Background: Among water pollutants, Natural Organic Matters (NOMs) are highly important for making problems in water treatment plants. Objectives: The main objective of this study was to investigate the efficiency of photocatalytic degradation of humic acid using magnetic nanoparticles (Fe-doped TiO2@Fe3O4) in aqueous solutions. Methods: In the present experiment, Fe-doped TiO2@Fe3O4 nanoparticles were synthesized by the sol-gel method, and SEM, XRD, and DRS analyzes were utilized to characterize the synthesized nanoparticles. The effects of various variables, including pH (3 - 11), initial concentration of humic acid (20 - 80 mg/L), and concentration of nanoparticles (250 - 2000 mg/L) at different reaction times (15 - 60 min) were investigated on the photocatalytic degradation of humic acid. Results: The maximum degradation efficiency of humic acid at pH 3, the initial humic acid concentration of 5 mg/L, nanoparticle dose of 400 mg/L, and reaction time of 60 min using a 15-W bare UV lamp. Conclusions: Due to the high efficiency of photocatalytic degradation, it is proposed to use for the removal of humic acid from water resources.

Photocatalytic degradation of gaseous benzene with Bi2WO6/Palygorskite composite catalyst

2019 ◽  
Vol 90 ◽  
pp. 76-85 ◽  
Author(s):  
Mengjie Zhang ◽  
Jun Lu ◽  
Chengzhu Zhu ◽  
Ying Xiang ◽  
Lianglong Xu ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Composite Catalyst ◽  
Gaseous Benzene
Sign in / Sign up

Export Citation Format

Share Document