Net-stacked hierarchical CdOHF architectures: controllable synthesis and visible-light driven photocatalytic performance

CrystEngComm ◽  
2021 ◽  
Author(s):  
Yingying Guo ◽  
Chi Wang ◽  
Huihui Cui ◽  
Miao Wang ◽  
Tongming Sun ◽  
...  
Keyword(s):  
Visible Light ◽  
Malachite Green ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
High Efficiency ◽  
Light Irradiation ◽  
Cationic Dye ◽  
Controllable Synthesis ◽  
Visible Light Driven

Net-stacked hierarchical CdOHF architectures were controllably synthesized, and exhibited high efficiency and selectivity for degrading the cationic dye malachite green (MG) under visible light irradiation.

Synthesis of boron imidazolate frameworks with cobalt clusters for efficient visible-light driven CO2 reduction

2019 ◽  
Vol 7 (29) ◽  
pp. 17272-17276 ◽  
Author(s):  
Qin-Long Hong ◽  
Hai-Xia Zhang ◽  
Jian Zhang
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Co2 Reduction ◽  
High Density ◽  
Light Irradiation ◽  
Evolution Rate ◽  
Cobalt Clusters ◽  
Visible Light Driven ◽  
Crystalline Boron

A porous crystalline boron imidazolate framework, with a high density of trinuclear cobalt clusters, exhibits efficient photocatalytic performance for CO2 reduction with a CO evolution rate of 5830 μmol g−1 h−1 under visible-light irradiation.

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.

2D ultrathin CoP modified MnxCd1−xS with controllable band structure and robust photocatalytic performance for hydrogen generation

2019 ◽  
Vol 48 (39) ◽  
pp. 14783-14791 ◽  
Author(s):  
Ran Chen ◽  
Yanhui Ao ◽  
Chao Wang ◽  
Peifang Wang
Keyword(s):  
Band Structure ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
High Efficiency ◽  
Hydrogen Generation ◽  
Low Cost ◽  
Light Irradiation ◽  
Earth Abundant

Considerable efforts have been directed towards constructing high-efficiency, earth-abundant and low-cost photocatalysts for hydrogen evolution under visible light irradiation.

WO3nanorod photocatalysts decorated with few-layer g-C3N4nanosheets: controllable synthesis and photocatalytic mechanism research

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 80193-80200 ◽  
Author(s):  
Hui Xu ◽  
Liang Liu ◽  
Xiaojie She ◽  
Zhao Mo ◽  
Yuanguo Xu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Visible Light ◽  
Chemical Oxygen Demand ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Oxygen Demand ◽  
Light Irradiation ◽  
Controllable Synthesis ◽  
Simple Process ◽  
Mechanism Research

A typical Z-scheme photocatalyst with excellent photocatalytic performance is prepared by a simple process and the chemical oxygen demand (COD) values of RhB dye in aqueous solution decrease about 64% under visible light irradiation.

Visible-Light-Driven Photocatalytic Performance of Ag@TiO2 Nanocrystals: The Effects of Phases and Morphologies

2014 ◽  
Vol 602-603 ◽  
pp. 1043-1047
Author(s):  
Qian Qian Chen ◽  
De Liang Chen ◽  
Lian Fang Ge ◽  
Shao Ke Hou ◽  
Rui Zhang
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Size Range ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
Xps Spectra ◽  
Visible Light Driven ◽  
Ag Ncs

Silver decorated TiO2 nanoparticles (Ag@syn-TiO2, Ag@P25) were synthesized by photoreducing Ag+ species in the presence of the synthetized TiO2 (syn-TiO2) nanocrystals or P25. The samples obtained were characterized by XRD, XPS, UV-vis and TEM. The XRD results showed the syn-TiO2 nanoparticles were pure anatase, and the P25 nanoparticles were the mixture of antase and rutile. The TEM observations and XPS spectra indicated that Ag species anchored on the surfaces of syn-TiO2 nanoparticles as Ag0 and AgO nanoclusters (NCs). The Ag NCs have a size range of 13 nm and the AgO NCs have a size range of 1015 nm. The Ag NCs on the surface of P25 have a size range of 57 nm, and no AgO species were found. The photocatalytic performance of the Ag@syn-TiO2 and Ag@P25 samples was evaluated by degradating Rhodamine B (RhB) under visible-light irradiation (λ ≥ 420 nm). The results indicated that the phases and morphologies of TiO2 nanocrystals have effects on their photocatalytic properties, and that the syn-TiO2 nanocrystals wiht the pure anatase are more active than P25 with the mixture of antase and rutile in RhB degradation. The possible mechanisms were discussed.

CdS/Ag2S/g-C3N4 ternary composites with superior photocatalytic performance for hydrogen evolution under visible light irradiation

2021 ◽  
Vol 50 (9) ◽  
pp. 3253-3260 ◽  
Author(s):  
Shan Zhao ◽  
Junbiao Wu ◽  
Yan Xu ◽  
Xia Zhang ◽  
Yide Han ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Synergic Effect

CdS/Ag2S/g-C3N4 ternary composites showed excellent photocatalytic performance toward H2 evolution. Their improved photocatalytic activity could be attributed not only to the synergic effect, but also to the introduction of Ag2S.

D–π–A-type triphenylamine dye covalent-functionalized g-C3N4 for highly efficient photocatalytic hydrogen evolution

2020 ◽  
Vol 10 (6) ◽  
pp. 1609-1618 ◽  
Author(s):  
Chao Zhang ◽  
Jiandong Liu ◽  
Xingliang Liu ◽  
Shiai Xu
Keyword(s):  
Reaction Mechanism ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient

Reaction mechanism for the higher photocatalytic performance of H2 production of g-C3N4NSs/TC1 under visible light irradiation (λ ≥ 400 nm).

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