Low-cost and facile fabrication of recyclable and reusable waste-based geopolymer for visible-light photocatalysis degradation

2021 ◽  
pp. 127434
Author(s):  
Zehua Ji ◽  
Yu Zhang ◽  
Xinyu Qi ◽  
Youke Wang ◽  
Xinghui Xia ◽  
...  
Keyword(s):  
Visible Light ◽  
Low Cost ◽  
Visible Light Photocatalysis ◽  
Facile Fabrication

scholarly journals Visible-Light Photocatalysis: A Low-Cost Metal-Free Photocatalyst Based on Black Phosphorus (Adv. Sci. 1/2019)

2019 ◽  
Vol 6 (1) ◽  
pp. 1970007
Author(s):  
Min Wen ◽  
Jiahong Wang ◽  
Ruifeng Tong ◽  
Danni Liu ◽  
Hao Huang ◽  
...  
Keyword(s):  
Visible Light ◽  
Low Cost ◽  
Black Phosphorus ◽  
Visible Light Photocatalysis ◽  
Metal Free

scholarly journals Dual Functional S-Doped g-C3N4 Pinhole Porous Nanosheets for Selective Fluorescence Sensing of Ag+ and Visible-Light Photocatalysis of Dyes

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 450 ◽  
Author(s):  
Abhijit Kadam ◽  
Md. Moniruzzaman ◽  
Sang-Wha Lee
Keyword(s):  
Visible Light ◽  
Porous Structure ◽  
Active Sites ◽  
Limit Of Detection ◽  
Low Cost ◽  
Environmental Safety ◽  
Cationic Dyes ◽  
Visible Light Photocatalysis ◽  
Fluorescence Sensing ◽  
Vis Spectroscopy

This study explores the facile, template-free synthesis of S-doped g-C3N4 pinhole nanosheets (SCNPNS) with porous structure for fluorescence sensing of Ag+ ions and visible-light photocatalysis of dyes. As-synthesized SCNPNS samples were characterized by various analytical tools such as XRD, FT-IR, TEM, BET, XPS, and UV–vis spectroscopy. At optimal conditions, the detection linear range for Ag+ was found to be from 0 to 1000 nM, showing the limit of detection (LOD) of 57 nM. The SCNPNS exhibited highly sensitive and selective detection of Ag+ due to a significant fluorescence quenching via photo-induced electron transfer through Ag+–SCNPNS complex. Moreover, the SCNPNS exhibited 90% degradation for cationic methylene blue (MB) dye within 180 min under visible light. The enhanced photocatalytic activity of the SCNPNS was attributed to its negative zeta potential for electrostatic interaction with cationic dyes, and the pinhole porous structure can provide more active sites which can induce faster transport of the charge carrier over the surface. Our SCNPNS is proposed as an environmental safety tool due to several advantages, such as low cost, facile preparation, selective recognition of Ag+ ions, and efficient photocatalytic degradation of cationic dyes under visible light.

scholarly journals Band Gap Tuning of Photo Fenton-like Fe3O4/C Catalyst through Oxygen Vacancies for Advanced Visible Light Photocatalysis

2021 ◽  
Author(s):  
Muthaimanoj Periyasamy ◽  
Sumanta Sain ◽  
Moumi Mandal ◽  
Utsav Sengupta ◽  
Sudipta Mukhopadhyay ◽  
...  
Keyword(s):  
Visible Light ◽  
Band Gap ◽  
Iron Ore ◽  
Oxygen Vacancies ◽  
Reduction Method ◽  
Low Cost ◽  
Visible Light Photocatalysis ◽  
Iron Precursor ◽  
Band Gap Tuning ◽  
Hydrothermal Reduction

In this contribution, low-cost Fe3O4/C nanocomposites has been targeted by a simplistic single-pot D-glucose mediated hydrothermal reduction method using a single iron precursor (FeCl3. 6H2O) acquired from accumulated iron ore...

Bio-templated fabrication of metal-free boron carbonitride tubes for visible light photocatalysis

2017 ◽  
Vol 53 (88) ◽  
pp. 11988-11991 ◽  
Author(s):  
Liuyong Chen ◽  
Xinchen Wang
Keyword(s):  
Visible Light ◽  
Carbon Nitride ◽  
Low Cost ◽  
Light Illumination ◽  
Visible Light Photocatalysis ◽  
Boron Carbonitride ◽  
Visible Light Illumination ◽  
Kapok Fibers ◽  
Boron Carbon Nitride ◽  
Boron Carbon

A novel and facile biotemplating method has been presented to synthesize boron carbon nitride tubes (BCNTs) by using the low-cost kapok fibers (KFs). This pathway not only transplanted the structure of KFs into the h-BN lattice, but also introduced C simultaneously in a self-doping manner. The BCNT photocatalysts can catalyse hydrogen evolution from water under visible light illumination.

Rhodamines as Photocatalyst in Organic Synthesis

2020 ◽  
Vol 07 ◽  
Author(s):  
Avik K. Bagdi ◽  
Papiya Sikdar
Keyword(s):  
Visible Light ◽  
Organic Synthesis ◽  
Organic Dyes ◽  
Transition Metal Catalysts ◽  
Visible Light Photocatalysis ◽  
Eosin Y ◽  
Organic Transformations ◽  
The Sustainable Development ◽  
Mechanistic Pathway ◽  
Green Model

Abstract:: Organic synthesis under environment friendly conditions has great impact in the sustainable development. In this context, visible light photocatalysis has emerged as a green model as this offers an energy-efficient pathway towards the organic transformation. Different transition-metal catalysts (Ir-, Ru-, Cu- etc) and organic dyes (eosin Y, rose bengal, methylene blue etc) are well-known photocatalysts in organic synthesis. Apart from the well-known organophotoredox catalysts, rhodamines (Rhodamine B and Rhodamine 6G) have been also employed as efficient photocatalysts for different organic transformations. In this review, we will focus on the photocatalysis by rhodamines in organic synthesis. Mechanistic pathway of the methodologies will also be discussed. We believe this review will stimulate the employment of rhodamines in the visible light photocatalysis for efficient organic transformations in the future.

Carbon quantum dot-sensitized hollow TiO2 spheres for high-performance visible light photocatalysis

2021 ◽  
Author(s):  
Xianfeng Zhang ◽  
Zongqun Li ◽  
Shaowen Xu ◽  
Yaowen Ruan
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
High Performance ◽  
Carbon Quantum Dots ◽  
Visible Light Photocatalysis ◽  
Carbon Quantum Dot ◽  
Visible Light Photocatalytic

TiO2/CQD composites were synthesized through carbon quantum dots covalently attached to the surface of hollow TiO2 spheres for visible light photocatalytic degradation of organics.

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