Self-assembly L-cysteine based 2D g-C3N4 nanoflakes for light-dependent degradation of rhodamine B and tetracycline through photocatalysis

Hu, Chechia; Liu, Zhiting; Yang, Po‐Chih; Ding, Yu-Xuan; Lin, Kun‐Yi Andrew; Nguyen, Ba-Son

doi:10.1016/j.jtice.2021.04.064

Cited by 24 publications

(8 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both the ZnO nanoparticles and CZ12.5 show the typical IV isotherms with a distinct hysteresis loop at a high relative pressure ( P / P 0 ) of 0.85–1.0, further validating the existence of mesoporous structure. 16 , 65 The CZ12.5 has a BET-specific surface area of 7.87 m 2 ·g –1 that was 1.86 times of ZnO nanoparticles. In the inset of Figure 5 b, the CZ12.5 sample displays the two types of pores.…”

Section: Resultsmentioning

confidence: 99%

“…Both the ZnO nanoparticles and CZ12.5 show the typical IV isotherms with a distinct hysteresis loop at a high relative pressure (P/P 0 ) of 0.85−1.0, further validating the existence of mesoporous structure. 16,65 The CZ12.5 has a BET-specific surface area of 7.87 m 2 •g −1 that was 1.86 times of ZnO nanoparticles. In the inset of Figure 5b, the CZ12.5 sample displays the two types of pores.…”

Section: Crystallinity and Morphology Analysismentioning

confidence: 99%

“…These active species can participate in degradation of RhB molecules . Hence, photocatalysis technology is expected to become an economical and clean technique to remove synthetic pigment pollutants. , …”

Section: Introductionmentioning

confidence: 99%

“…14 Hence, photocatalysis technology is expected to become an econom-ical and clean technique to remove synthetic pigment pollutants. 15,16 As a widely used semiconductor material, ZnO is considered to be an attractive candidate due to its nontoxicity, unique photoelectric properties, and high catalytic activity and electron exchange performance. 17−19 However, ZnO nanostructures can only be excited under ultraviolet (UV) light due to their wide band gap of about 3.27 eV.…”

Section: Introductionmentioning

confidence: 99%

“… 14 Hence, photocatalysis technology is expected to become an economical and clean technique to remove synthetic pigment pollutants. 15 , 16 …”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

ZnO Nanoparticles Modified by Carbon Quantum Dots for the Photocatalytic Removal of Synthetic Pigment Pollutants

Jin

Tao

et al. 2023

ACS Omega

View full text Add to dashboard Cite

Synthetic pigment pollutants caused by the rapid development of the modern food industry have become a serious threat to people's health and quality of life. Environmentally friendly ZnO-based photocatalytic degradation exhibits satisfactory efficiency, but some shortcomings of large band gap and rapid charge recombination reduce the removal of synthetic pigment pollutants. Here, carbon quantum dots (CQDs) with unique up-conversion luminescence were applied to decorate ZnO nanoparticles to effectively construct the CQDs/ ZnO composites via a facile and efficient route. The ZnO nanoparticles with a spherical-like shape obtained from a zinc-based metal organic framework (zeolitic imidazolate framework-8, ZIF-8) were coated by uniformly dispersive quantum dots. Compared with single ZnO particles, the obtained CQDs/ZnO composites exhibit enhanced light absorption capacity, decreased photoluminescence (PL) intensity, and improved visible-light degradation for rhodamine B (RhB) with the large apparent rate constant (k app ). The largest k app value in the CQDs/ZnO composite obtained from 75 mg of ZnO nanoparticles and 12.5 mL of the CQDs solution (∼1 mg•mL −1 ) was 2.6 times that in ZnO nanoparticles. This phenomenon may be attributed to the introduction of CQDs, leading to the narrowed band gap, an extended lifetime, and the charge separation. This work provides an economical and clean strategy to design visible-light-responsive ZnObased photocatalysts, which is expected to be used for the removal of synthetic pigment pollutants in food industry.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Crystallinity and Morphology Analysismentioning

confidence: 99%