Hollow core/shell β-Bi2O3@WS2 p–n heterojunction for efficient photocatalytic degradation of fluoroquinolones: a theoretical and experimental study

2020 ◽  
Vol 7 (6) ◽  
pp. 1374-1385 ◽  
Author(s):  
Li Li ◽  
Yunhui Yan ◽  
Haiping Liu ◽  
Jinge Du ◽  
Shuai Fu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Self Assembly ◽  
Theoretical Calculations ◽  
Core Shell ◽  
Hollow Core ◽  
Assembly Method ◽  
Visible Light Driven

An efficient visible-light-driven β-Bi2O3@WS2 p–n core–shell heterostructure was rationally designed using theoretical calculations and then fabricated via a facile self-assembly method.

A visible-light driven Bi2S3@ZIF-8 core–shell heterostructure and synergistic photocatalysis mechanism

2018 ◽  
Vol 47 (3) ◽  
pp. 684-692 ◽  
Author(s):  
Yan-Hua Ding ◽  
Xiao-Lei Zhang ◽  
Na Zhang ◽  
Jian-Yong Zhang ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Self Assembly ◽  
Light Irradiation ◽  
Core Shell ◽  
Visible Light Driven ◽  
Degussa P25

A series of Bi2S3@ZIF-8 core–shell heterostructures has been synthesized using in situ self-assembly, which exhibit enhanced photocatalytic degradation of Rhodamine B under visible-light irradiation, reaching 25.3 times that observed for pristine Bi2S3 and 26.7 times that found for commercial Degussa P25.

scholarly journals In situ self-assembly of zirconium metal–organic frameworks onto ultrathin carbon nitride for enhanced visible light-driven conversion of CO2 to CO

2020 ◽  
Vol 8 (12) ◽  
pp. 6034-6040 ◽  
Author(s):  
Yanan Wang ◽  
Wenlong Zhen ◽  
Yiqing Zeng ◽  
Shipeng Wan ◽  
Haiwei Guo ◽  
...  
Keyword(s):  
Visible Light ◽  
Self Assembly ◽  
Carbon Nitride ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Assembly Method ◽  
Visible Light Driven ◽  
Metal Organic ◽  
Zirconium Metal

A series of Zr-porphyrin metal–organic framework (Zr-PMOF)/ultrathin g-C3N4 (UCN) heterostructure photocatalysts, as stable and efficient catalysts for the photoreduction of CO2, have been fabricated via a facile in situ hydrothermal self-assembly method.

scholarly journals Core-Shell Heterostructured and Visible-Light-Driven Titanoniobate/TiO2 Composite for Boosting Photodegradation Performance

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1503 ◽  
Author(s):  
Chao Liu ◽  
Xin Gao ◽  
Zitong Han ◽  
Yao Sun ◽  
Yue Feng ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Environmental Remediation ◽  
Synergistic Effects ◽  
Light Response ◽  
Core Shell ◽  
Photogenerated Electrons ◽  
Visible Light Driven ◽  
Degradation Activity ◽  
Calcination Method

Herein, we report a one-dimensional (1D) S-doped K3Ti5NbO14@TiO2 (STNT) core-shell heterostructured composite with an enhanced photocatalytic degradation activity under visible light, which was prepared by a simple reassembly-calcination method using thiourea as the S source. The anisotropically shaped rods are favorable for the rapid transport of photogenerated charge carriers. The substitution of Ti4+ by S6+ is primarily incorporated into the lattice of the TiO2 shell so as to create an intra-band-gap state below the conduction band (CB) position, giving rise to Ti−O−S bonds and thus the visible light response. The presence of electron-deficient S atoms is of benefit to the decreased recombination rate of photogenerated electrons and holes by capturing electrons (e−). Meanwhile, a tight close interface between K3Ti5NbO14 and TiO2 was formed to achieve a nano-heterojunction structure, leading to the fostered separation of its interfacial photogenerated electrons and holes. The visible-light-driven photocatalytic degradation of methylene blue (MB) by STNT composites is higher than that by pure K3Ti5NbO14, owing to the synergistic effects of S doping and heterojunction. A possible photocatalytic mechanism was proposed with a reasonable discussion. This work may provide an insight into constructing highly efficient core-shell photocatalysts used toward sustainable environmental remediation and resource shortages.

A radially controlled ZnS interlayer on ultra-long ZnO–Gd2S3 core–shell nanorod arrays for promoting the visible photocatalytic degradation of antibiotics

Nanoscale ◽  
2020 ◽  
Vol 12 (26) ◽  
pp. 14047-14060
Author(s):  
Kugalur Shanmugam Ranjith ◽  
D. Ranjith Kumar ◽  
Seyed Majid Ghoreishian ◽  
Yun Suk Huh ◽  
Young-Kyu Han ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Core Shell ◽  
Nanorod Arrays ◽  
Visible Light Driven ◽  
Photocatalytic Performances

Heterostructural nanorod (NR) arrays offer commendable visible-light-driven photocatalytic performances.

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