scholarly journals Experimental study of manganese dioxide doped with metal for the treatment of phenolic wastewater

2021 ◽  
Vol 2076 (1) ◽  
pp. 012050
Author(s):  
Qiushi Qin ◽  
Ji Huang ◽  
Xu Du ◽  
Jinghong Zhang ◽  
Dong Fu
Keyword(s):  
Manganese Dioxide ◽  
Metal Ion ◽  
Photocatalytic Oxidation ◽  
Photocatalytic Performance ◽  
Phenol Degradation ◽  
Energy Utilization ◽  
Promising Strategy ◽  
Solar Energy Utilization ◽  
Oxidation Technology ◽  
Phenolic Wastewater

Abstract The wastewater containing phenol is harmful, and the process is complicated, photocatalytic oxidation technology is believed to be the greenest and promising strategy for contaminants removal because of the solar energy utilization and no additional oxidants. Herein, manganese dioxide(MnO2) doped with metal was fabricated by a low-temperature hydrothermal method, the specific surface area of MnO2 photocatalyst was significantly enhanced by doping metal ion. This making the photocatalytic performance improved obviously, and further applying for phenol degradation under visible light irradiation at room temperature.

Surface defect engineering and morphology control of graphitic carbon nitride synergistically improved photocatalytic performance

2021 ◽  
Author(s):  
Tingting Zhang ◽  
Weinan Xing ◽  
haoxin li ◽  
Zhangzhen Cai ◽  
Yichi Zhang ◽  
...  
Keyword(s):  
Solar Energy ◽  
High Performance ◽  
Carbon Nitride ◽  
Surface Defect ◽  
Photocatalytic Performance ◽  
Morphology Control ◽  
Energy Utilization ◽  
Defect Engineering ◽  
Solar Energy Utilization ◽  
New Strategy

Simultaneously exploration surface defect engineering and morphology control are critical for its application in designing high-performance solar energy utilization system. In this study, a new strategy based on the nitrogen...

scholarly journals Performance of PES/LSMM-OGCN Photocatalytic Membrane for Phenol Removal: Effect of OGCN Loading

Membranes ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 42 ◽  
Author(s):  
Noor Salim ◽  
Nor Nor ◽  
Juhana Jaafar ◽  
Ahmad Ismail ◽  
Takeshi Matsuura ◽  
...  
Keyword(s):  
Phase Inversion ◽  
Photocatalytic Oxidation ◽  
Photocatalytic Performance ◽  
Phenol Degradation ◽  
Phenol Removal ◽  
Membrane Performance ◽  
Phase Inversion Technique ◽  
The Stability ◽  
Oxidation System ◽  
Catalyst Distribution

In designing a photocatalytic oxidation system, the immobilized photocatalyst technique becomes highly profitable due to its promising capability in treating organic pollutants such as phenols in wastewater. In this study, hydrophiLic surface modifying macromolecules (LSMM) modified polyethersulfone (PES) hybrid photocatalytic membranes incorporated with oxygenated graphitic carbon nitride (OGCN) was successfully developed using phase inversion technique. The effectiveness of the hybrid photocatalytic membrane was determined under different loading of OGCN photocatalyst (0, 0.5, 1.0, 1.5, 2.0, and 2.5 wt%). The best amount of OGCN in the casting solution was 1.0 wt% as the agglomeration did not occur considering the stability of the membrane performance and morphology. The highest flux of 264 L/m2·h was achieved by PES/LSMM-OGCN1.5wt% membrane. However, the highest flux performance was not an advantage in this situation as the flux reduced the rejection value due to open pores. The membrane with the highest photocatalytic performance was obtained at 1.0 wt% of OGCN loading with 35.78% phenol degradation after 6 h. Regardless of the lower rejection value, the performance shown by the PES/LSMM-OGCN1.0wt% membrane was still competent because of the small difference of less than 1% to that of the PES/LSMM-OGCN0wt% membrane. Based on the findings, it can be concluded that the optimisation of the OGCN loading in the PES hybrid photocatalytic membrane indeed plays an important role towards enhancing the catalyst distribution, phenol degradation, and acceptable rejection above all considerations.

Sandwich hydrogel with confined plasmonic Cu/carbon cells for efficient solar water purification

2021 ◽  
Author(s):  
Cheng Tian ◽  
Chengcheng Li ◽  
Delun Chen ◽  
Yifan Li ◽  
LEI XING ◽  
...  
Keyword(s):  
Solar Energy ◽  
Water Purification ◽  
Low Cost ◽  
Energy Utilization ◽  
Solar Water ◽  
Solar Energy Utilization

Designing low-cost and efficient evaporation system to maximize solar energy utilization is of great importance for the emerging solar water purification technologies. Herein, we demonstrate a universal sandwich hydrogel by...

Nanowire-based zinc-doped tin oxide microtubes for enhanced solar energy utilization efficiency

2017 ◽  
Vol 43 (9) ◽  
pp. 6822-6830 ◽  
Author(s):  
Wutao Mao ◽  
Zhengdao Li ◽  
Keyan Bao ◽  
Kaijun Zhang ◽  
Weibo Wang ◽  
...  
Keyword(s):  
Solar Energy ◽  
Tin Oxide ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Solar Energy Utilization

Light manipulation in a dually ordered porous TiO2–rGO composite for efficient solar energy utilization

2017 ◽  
Vol 4 (4) ◽  
pp. 578-580 ◽  
Author(s):  
Xiaoyong Lai
Keyword(s):  
Solar Energy ◽  
Light Response ◽  
Energy Utilization ◽  
Porous Tio2 ◽  
Light Manipulation ◽  
Solar Energy Utilization ◽  
Ordered Porous

A dually ordered macro-mesoporous TiO2–rGO composite with tunable light response was developed for efficient solar energy utilization.

Solar energy utilization in water production from humid air

Solar Energy ◽  
2017 ◽  
Vol 148 ◽  
pp. 98-109 ◽  
Author(s):  
M.H. Mohamed ◽  
G.E. William ◽  
M. Fatouh
Keyword(s):  
Solar Energy ◽  
Energy Utilization ◽  
Water Production ◽  
Humid Air ◽  
Solar Energy Utilization
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