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

One-Step Hydrothermal Synthesis of 1T@2H MoS2 for Enhanced Photocatalytic Degradation Performance of Methyl Blue

2020 ◽  
Vol 993 ◽  
pp. 1496-1501
Author(s):  
Dong Dong Li ◽  
Yan Hua Lei ◽  
Ning Tan ◽  
Tao Liu ◽  
Xue Ting Chang ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
High Efficiency ◽  
Removal Rate ◽  
Photocatalytic Property ◽  
Band Gap Energy ◽  
Photo Degradation ◽  
One Step ◽  
Electron Migration ◽  
Materials Used

Photocatalytic technology is widely used in water purification because of its environmental protection, high efficiency and energy saving. Therefore, it is extremely important for the selection and preparation of specific semiconductor materials used in the field of photocatalysis. In this work, 1T@2H MoS2 nanosheets were fabricated by simple hydrothermal method, and the photocatalytic property of as-prepared 1T@2H MoS2 were investigated by the photo-degradation of methylene blue (MB) water solutions under visible light irradiation via 2H MoS2.The results indicated that compared to 2H MoS2, the 1T@2H MoS2 exhibited more excellent photocatalytic degradation property. After 150 minutes of irradiation under visible light, 1T@2H MoS2 had a removal rate of 98% for MB, and 2H MoS2 eventually reached 19%. The enhancement photocatalytic property of 1T@2H MoS2 could be attributed to the reduced band gap energy of the hybrid-nanosheets and the increased in electron migration speed.

scholarly journals Synthesis and visible-light photocatalytic degradation of Ag3PO4/AgBr/hydroxyapatite ternary nanocomposites prepared from oyster shells

RSC Advances ◽  
2021 ◽  
Vol 11 (26) ◽  
pp. 15598-15607
Author(s):  
Sha Sha ◽  
Lei Zhang ◽  
Haijun Liu ◽  
Jingdi Chen ◽  
Yuju Che ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
High Efficiency ◽  
Organic Dyes ◽  
New Type ◽  
Visible Light Photocatalytic

A new type of Ag3PO4/AgBr/hydroxyapatite photocatalyst was prepared from oyster shells, which showed high efficiency in the degradation of organic dyes.

Photocatalytic Degradation of Methylene Blue Using Porphyrin/TiO2 Complexes Activated by Visible Light

2008 ◽  
Vol 47-50 ◽  
pp. 471-474 ◽  
Author(s):  
Ming Yi Chang ◽  
Chen Yu Chang ◽  
Yung Hsu Hsieh ◽  
Kuo Shan Yao ◽  
Ta Chih Cheng ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Major Part ◽  
High Efficiency ◽  
Oxidation Process ◽  
Uv Light ◽  
Field Application ◽  
Environmental Engineering ◽  
Major Disadvantage

The use of TiO2 as photocatalyst to degrade the organic compounds is an effective method of oxidation process and has been widely studied in environmental engineering. However, TiO2 absorbed the UV light which is only small part of sunlight reaching earth surface to activate photocatalytic procedure is a major disadvantage. Therefore, studies on the development of new TiO2 that its photocatalytic activity can be activated by visible light which is the major part of sunlight will be valuable for field application. In this study, we evaluate the photocatalytic degrading efficiency of porphyrins/TiO2 complexes on the organic pollutants under irradiation with visible light (λ= 419 nm). The results showed that the photodecomposition efficiency of methylene blue were up to 95% and 90% respectively after using NiTPP/TiO2 and ZnTPP/TiO2 irradiated with visible light for 6 h. These evidences reveal that the system of porphyrin/TiO2 complexes has significantly high efficiency of photocatalytic degradation under visible light irradiation.

scholarly journals Tubular g-C3N4/carbon framework for high-efficiency photocatalytic degradation of methylene blue

RSC Advances ◽  
2021 ◽  
Vol 11 (30) ◽  
pp. 18519-18524
Author(s):  
Haicheng Li ◽  
Linlin Zang ◽  
Fengtong Shen ◽  
Libin Wang ◽  
Liguo Sun ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Surface Area ◽  
Photocatalytic Performance ◽  
High Efficiency ◽  
Carbon Framework

Tubular g-C3N4 grown on a carbon framework increased the surface area of bulk g-C3N4, enhanced the absorption of visible light and promoted the photocatalytic performance.

scholarly journals One-post Solvothermal Synthesis of Bismuth Oxybromides for Efficient Visible-light Photocatalytic Degradation of Methyl Parahydroxybenzoate: Effects of Alkaline and Reaction Medium

2020 ◽  
Vol 01 ◽  
Author(s):  
Jiaxiu Xiao ◽  
Xiaoting Zhang ◽  
Yaoyao Huang ◽  
Xiuling Luo ◽  
Xin Xiao
Keyword(s):  
Ethylene Glycol ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Surface Area ◽  
Environmental Remediation ◽  
High Efficiency ◽  
High Surface ◽  
Reaction Medium ◽  
Bandgap Energy ◽  
Potential Candidate

Background: The development of high-efficiency visible-light-active photocatalysts to eliminate emerging contaminants is of great significance for environmental remediation and personal safety. Methods: In this work, BiOBr and two oxygen-rich bismuth oxybromide (Bi4O5Br2-EG and Bi4O5Br2-H2O) were synthesized by solvothermal method through the reaction of Bi3+ and Br- in different reaction medium (ethylene glycol or water) and alkali conditions. The composition, structure, morphology, light absorption, surface area, and surface feature of the synthetic bismuth oxybromides were systematically characterized. Due to the presence of ethylene glycol and OH-, the Bi4O5Br2-EG preferentially exposes the 010 facets. The formation of hierarchical flower-like structures of Bi4O5Br2- EG can be elucidated by the dissolution-recrystallization-growth mechanism. The bismuth oxybromides were then used for photocatalytic degradation of methyl parahydroxybenzoate (a commonly used preservative but exposes endocrine disrupting activity) under visible-light irradiation. Results: Since Bi4O5Br2-EG has a satisfactory band structure (bandgap energy ~2.61 eV, valence band potential +2.45 V), high surface area (49.0 m2g-1), and negatively charged surface, its photocatalytic removal efficiency of MPHB is 46.5 and 41.2 times that of BiOBr and Bi4O5Br2-H2O, respectively. During the photodegradation reaction, holes and superoxide radicals were recognized as the key reactive oxide species. Conclusion: In addition, the as-synthesized Bi4O5Br2-EG is stable and easy to reuse, suggesting it is a potential candidate for wastewater treatment.

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.

Developing high-efficiency π conjugated polymer semiconductor for photocatalytic degradation of dyes under visible light irradiation

RSC Advances ◽  
2014 ◽  
Vol 4 (100) ◽  
pp. 57153-57158 ◽  
Author(s):  
Sheng Chu ◽  
Cuicui Wang ◽  
Yu Yang ◽  
Ying Wang ◽  
Zhigang Zou
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
High Activity ◽  
Visible Light Irradiation ◽  
Conjugated Polymer ◽  
High Efficiency ◽  
Degradation Of Dyes ◽  
Backbone Conformation ◽  
Polymer Semiconductor ◽  
Visible Irradiation

π-conjugated polymer with a good coplanar backbone conformation exhibits high activity for degradation of pollutant under visible irradiation.

Visible Light Active Ce-doped TiO2 Nanoparticles for Photocatalytic Degradation of Methylene Blue

2016 ◽  
Vol 13 (1) ◽  
pp. 110-116 ◽  
Author(s):  
Rani P. Barkul ◽  
Farah-Naaz A. Shaikh ◽  
Sagar D. Delekar ◽  
Meghshyam K. Patil
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Tio2 Nanoparticles ◽  
Doped Tio2 ◽  
Visible Light Active
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