Construction of a novel 2D-2D heterojunction by coupling covalent organic framework and In2S3 for photocatalytic removal of organic pollutants with high efficiency

2021 ◽  
Author(s):  
Luqiu Li ◽  
Dongguang Yin ◽  
Xiandi Guo
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Organic Pollutants ◽  
High Efficiency ◽  
Crystalline Material ◽  
Charge Carriers ◽  
Covalent Organic Frameworks ◽  
Covalent Organic Framework ◽  
Photocatalytic Removal ◽  
Visible Light Driven

Covalent organic frameworks (COFs) representing an emerging class of porous crystalline material have shown promising visible-light-driven hydrogen evolution activity. However, they have a high recombination ratio of charge carriers and...

Boosting photocatalytic H2 evolution on g-C3N4 by modifying covalent organic frameworks (COFs)

2019 ◽  
Vol 55 (41) ◽  
pp. 5829-5832 ◽  
Author(s):  
Maolan Luo ◽  
Qing Yang ◽  
Kewei Liu ◽  
Hongmei Cao ◽  
Hongjian Yan
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Quantum Efficiency ◽  
Covalent Organic Frameworks ◽  
H2 Evolution ◽  
Co Catalyst ◽  
Visible Light Driven ◽  
Apparent Quantum Efficiency ◽  
Sacrificial Agent ◽  
Photocatalytic H2 Evolution

Modifying g-C3N4 with covalent organic frameworks (COFs) through imine linkage results in a dramatically enhanced visible-light-driven photocatalytic hydrogen evolution, which reached 10.1 mmol g−1 h−1 when 2 wt% Pt and triethanolamine were used as co-catalyst and sacrificial agent, respectively, corresponding to an apparent quantum efficiency (AQE) of 20.7% at 425 nm.

A benzothiadiazole-based covalent organic framework for highly efficient visible-light driven hydrogen evolution

2020 ◽  
Vol 56 (83) ◽  
pp. 12612-12615
Author(s):  
Guang-Bo Wang ◽  
Sha Li ◽  
Cai-Xin Yan ◽  
Qian-Qian Lin ◽  
Fu-Cheng Zhu ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Covalent Organic Framework ◽  
Highly Efficient ◽  
Visible Light Driven ◽  
Organic Framework

A benzothiadiazole-based covalent organic framework, which can be a high-performance platform for efficient visible-light driven hydrogen evolution, is reported.

Tunable Linear Donor-π-Acceptor Conjugated Polymers with Vinylene Linkage for Visible-Light Driven Hydrogen Evolution

2021 ◽  
Author(s):  
Shitong Han ◽  
Tao Huang ◽  
Yi Pan ◽  
JiWu Zhao ◽  
Lin Huan ◽  
...  
Keyword(s):  
Visible Light ◽  
Conjugated Polymers ◽  
Hydrogen Evolution ◽  
Rational Design ◽  
High Efficiency ◽  
H2 Production ◽  
Design And Synthesis ◽  
Visible Light Driven

This work demonstrated the rational design and synthesis of the donor-π-acceptor (D-π-A) linear vinylene-linked polymers for visible-light driven H2 production with high-efficiency. Extending the in-plane conjugation, enhancing the electron push-pull...

A molecular Keggin polyoxometalate catalyst with high efficiency for visible-light driven hydrogen evolution

2014 ◽  
Vol 39 (33) ◽  
pp. 18908-18918 ◽  
Author(s):  
Jinli Zhao ◽  
Yong Ding ◽  
Jie Wei ◽  
Xiaoqiang Du ◽  
Yongze Yu ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
High Efficiency ◽  
Visible Light Driven ◽  
Keggin Polyoxometalate

SBA-15 Templated Mesoporous Graphitic C3N4 for Remarkably Enhanced Photocatalytic Degradation of Organic Pollutants under Visible Light

NANO ◽  
2019 ◽  
Vol 14 (11) ◽  
pp. 1950136 ◽  
Author(s):  
Hongjin Liu ◽  
Haining Wu ◽  
Jun Lv ◽  
Guangqing Xu ◽  
Xing Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Organic Pollutants ◽  
Visible Light Irradiation ◽  
High Efficiency ◽  
Active Species ◽  
Light Irradiation ◽  
Radical Trapping ◽  
Ordered Mesoporous ◽  
Visible Light Driven ◽  
Reaction Processes

Organic pollutants in water have been threatening public and environmental health. Developing efficient and sustainable photocatalysts working for degradation of organic pollutants under visible light becomes a big challenge. In this paper, high-efficiency visible light driven catalyst ordered mesoporous graphite nitride carbon (mpg-C3N4) was prepared by using SBA-15 as template and dicyandiamide (C2H4N4) as precursor. The specific surface area of mpg-C3N4 can be increased remarkably as compared to that of the bulk graphite nitrite carbon (g-C3N4) by adjusting the ratio of SBA-15 to dicyandiamide. Photocatalytic performance of mpg-C3N4 were evaluated systematically by degradation of Rhodamine B (RhB), malachite green (MG) and tetracycline hydrochloride (TC) under visible light irradiation. The results showed that the mpg-C3N4 (1:0.5) has the highest photocatalytic activity and stability and the degradation rate is for RhB, MG and TC are all more than seven times that of bulk g-C3N4. After five recycling runs, the mpg-C3N4 (1:0.5) remains high photocatalytic activities for the degradation of MG (94%) and TC (81%), respectively. Additionally, radical trapping experiments certified that the main active species are [Formula: see text] and h[Formula: see text], while the role of [Formula: see text]OH is irrelevant in the reaction processes. This work provides a promising pathway to prepare metal-free photocatalyst for degradation of organic pollutants under visible light irradiation.

Cobalt-containing covalent organic frameworks for visible light-driven hydrogen evolution

2019 ◽  
Vol 63 (2) ◽  
pp. 192-197 ◽  
Author(s):  
Jian Wang ◽  
Jian Zhang ◽  
Shing Bo Peh ◽  
Guoliang Liu ◽  
Tanay Kundu ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Covalent Organic Frameworks ◽  
Visible Light Driven

Hybridization of brookite TiO2 with g-C3N4: a visible-light-driven photocatalyst for As3+ oxidation, MO degradation and water splitting for hydrogen evolution

2014 ◽  
Vol 2 (38) ◽  
pp. 15774-15780 ◽  
Author(s):  
Yipeng Zang ◽  
Liping Li ◽  
Yangsen Xu ◽  
Ying Zuo ◽  
Guangshe Li
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
High Efficiency ◽  
Visible Light Driven

A visible-light-driven photocatalyst of brookite TiO2 coupled with g-C3N4 exhibited high efficiency for As3+ oxidation, MO degradation, and hydrogen evolution.

Covalent-organic framework based Z-scheme heterostructured noble-metal-free photocatalysts for visible-light-driven hydrogen evolution

2020 ◽  
Vol 8 (8) ◽  
pp. 4334-4340 ◽  
Author(s):  
Yang-Peng Zhang ◽  
Hong-Liang Tang ◽  
Hong Dong ◽  
Meng-Yao Gao ◽  
Chang-Cheng Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Photocatalytic Hydrogen Evolution ◽  
Metal Free ◽  
Covalent Organic Framework ◽  
Visible Light Driven ◽  
Organic Framework

A COF-based Z-scheme heterostructure hybrids (α-Fe2O3/TpPa-2-COF) for noble-metal-free photocatalytic hydrogen evolution.

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