In situ growth of CdS quantum dots on phosphorus-doped carbon nitride hollow tubes as active 0D/1D heterostructures for photocatalytic hydrogen evolution

Liang, Qian; Zhang, Chengjia; Xu, Song; Zhou, Man; Zhou, Yingtang; Li, Zhongyu

doi:10.1016/j.jcis.2020.05.053

Cited by 79 publications

(37 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Fig. 7(d), after 6 cycle tests, the H 2 evolution rate of pure CdS significantly decreased every 5 h, which could be attributed to photocorrosion 49 . Nonetheless, the activity of the CdS/MoS 2 /rGO nanocomposites remained nearly unchanged, and the recovery rate was up to 91%.…”

Section: Resultsmentioning

confidence: 87%

In situ deposition of CdS on MoS₂/rGO‐based nanocomposites for highly efficient photocatalytic H₂ evolution reaction with visible light

Tan

Song

Shi

2021

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND The development of advanced and inexpensive photocatalytic systems exhibiting high efficiency is highly desired for hydrogen (H2) production. In this work, a hydrothermal and in situ growth method was employed for the construction of CdS/MoS2/rGO nanocomposites by coupling MoS2/rGO with CdS to produce H2. The stability and photocatalytic properties of the nanocomposites for H2 evolution at different CdS content were investigated. RESULTS It was found that CdS/MoS2/rGO nanocomposites with 0.35 wt% CdS displayed the highest H2 evolution rate of 11 331.65 μmol h−1 g−1. This corresponded to the apparent quantum efficiency of 10.4% at 420 nm, which was approximately 46 times higher than that of pure CdS. The CdS/MoS2/rGO nanocomposites showed excellent stability in 6‐run recycling experiments. Additionally, a plausible H2 production mechanism was proposed. CONCLUSION The remarkable photocatalytic activity was attributed to the high electron–hole pair separation efficiency upon the introduction of MoS2/rGO. This work provides new insights for enhancing the photocatalytic H2 evolution activity. © 2021 Society of Chemical Industry (SCI).

show abstract

Section: Resultsmentioning

confidence: 87%

In situ deposition of CdS on MoS₂/rGO‐based nanocomposites for highly efficient photocatalytic H₂ evolution reaction with visible light

Tan

Song

Shi

2021

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…In addition, Zhao et al [25,26] synthesized NH 2 -UiO-66/ZnIn 2 S 4 (NU66/ZIS) composites and demonstrated increased charge transfer and separation efficiency. It further expands the NU66 application [27].…”

Section: Introductionmentioning

confidence: 94%

Remarkably Enhanced Photodegradation of Organic Pollutants by NH2-UiO-66/ ZnO Composite under Visible-Light Irradiation

Teng¹,

Zhang²,

Luo³

et al. 2022

Journal of Renewable Materials

Self Cite

View full text Add to dashboard Cite

Semiconductor photocatalysis is a novel highly efficient and low-cost method for removing organic pollutants from wastewater. However, the photoreduction performance of semiconductors on organic pollutants is limited due to the weak absorption of visible light caused by its wide band gap and low carrier utilization rate resulting from severe electron-holes recombination. In the present study, flower-like NH 2 -UiO-66 (NU66)/ZnO nanocomposites were prepared using a facile method and exhibited high efficiency under visible light driven photocatalysts. The X-ray diffractometer (XRD), scanning electron microscope (SEM), transmitor electron microscope (TEM), and X-ray photoelectron spectroscopy (XPS) were used to characterize the prepared samples, indicating that NU66/ZnO was successfully synthesized. The photocatalytic activity of the prepared NU66/ZnO nanocomposites was determined by measuring the photodegradation of methylene blue (MB) and malachite green (MG) under visible-light irradiation. The optimal nanocomposite loading of 5% wt NU66 to NU66/ZnO demonstrated the highest photocatalytic activity for the degradation of MB. The photocatalytic activity of a 5% NU66/ZnO composite was approximately 95-fold and 19-fold higher than that of NU66 and ZnO samples, respectively. The enhanced activity of the 5% wt NU66/ZnO nanocomposite was further confirmed through photoelectrochemical analysis. The formation of type II heterojunctions between the counterparts significantly suppressed recombination of the photogenerated charge carriers. Photocatalytic degradation experiments with different quenchers indicated that the effect of superoxide anion radicals (•O 2 − ) had a greater effect than the other scavengers.Additionally, the improved photocatalytic mechanism underlying the activity of NU66/ZnO nanocomposites was also explored. These findings establish a basis for development of MOF based heterojunction for photocatalytic organic pollution remediation.

show abstract

“…In this respect, hydrogen is considered as a promising candidate for next-generation energy carriers due to its large energy content of ~122 kJ•g −1 and clean emission [221][222][223] . Compared with the environmentally unfriendly steam reforming of natural gas and the expensive electrolysis of water, photocatalytic water splitting is considered to be a promising approach for the production of H2 due to its effective utilization of solar energy 29, [224][225][226][227][228][229][230][231][232][233][234][235] . Since Fujishima and Honda 94 proposed the first photoelectrochemical water splitting system in 1972, photocatalytic water splitting has drawn immense attention and leading-edge achievements emerged in an endless stream to date, and the typical works are concluded in Table 3 114,143,147, 236-240. The basic steps in the process of photocatalytic water splitting on a semiconductor photocatalyst are shown in Fig.…”

Section: Water Splittingmentioning

confidence: 99%

Recent Progress of Perovskite Oxide in Emerging Photocatalysis Landscape: Water Splitting, CO<sub>2</sub> Reduction, and N<sub>2</sub> Fixation

王则鉴¹,

洪佳佳²,

Sue-Faye³

et al. 2020

Acta Physico Chimica Sinica

View full text Add to dashboard Cite

In situ growth of CdS quantum dots on phosphorus-doped carbon nitride hollow tubes as active 0D/1D heterostructures for photocatalytic hydrogen evolution

Cited by 79 publications

References 56 publications

In situ deposition of CdS on MoS₂/rGO‐based nanocomposites for highly efficient photocatalytic H₂ evolution reaction with visible light

In situ deposition of CdS on MoS₂/rGO‐based nanocomposites for highly efficient photocatalytic H₂ evolution reaction with visible light

Remarkably Enhanced Photodegradation of Organic Pollutants by NH2-UiO-66/ ZnO Composite under Visible-Light Irradiation

Recent Progress of Perovskite Oxide in Emerging Photocatalysis Landscape: Water Splitting, CO<sub>2</sub> Reduction, and N<sub>2</sub> Fixation

Contact Info

Product

Resources

About

In situ growth of CdS quantum dots on phosphorus-doped carbon nitride hollow tubes as active 0D/1D heterostructures for photocatalytic hydrogen evolution

Cited by 79 publications

References 56 publications

In situ deposition of CdS on MoS2/rGO‐based nanocomposites for highly efficient photocatalytic H2 evolution reaction with visible light

In situ deposition of CdS on MoS2/rGO‐based nanocomposites for highly efficient photocatalytic H2 evolution reaction with visible light

Remarkably Enhanced Photodegradation of Organic Pollutants by NH2-UiO-66/ ZnO Composite under Visible-Light Irradiation

Recent Progress of Perovskite Oxide in Emerging Photocatalysis Landscape: Water Splitting, CO<sub>2</sub> Reduction, and N<sub>2</sub> Fixation

Contact Info

Product

Resources

About

In situ deposition of CdS on MoS₂/rGO‐based nanocomposites for highly efficient photocatalytic H₂ evolution reaction with visible light

In situ deposition of CdS on MoS₂/rGO‐based nanocomposites for highly efficient photocatalytic H₂ evolution reaction with visible light