Recent advances in VOCs and CO removal via photothermal synergistic catalysis

Wei, Longfu; Yu, Changlin; Yang, Kai; Fan, Qizhe; Ji, Hongbing

doi:10.1016/s1872-2067(20)63721-4

Cited by 60 publications

(26 citation statements)

References 138 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absorption method for VOCs exhibits insufficient storage capacity, requires frequent replacement, and produces easy desorption when heating [11,12]. Thermal catalysis and biodegradation also present some disadvantages, including a low catalyst efficiency, high operating temperatures, and high costs [13].…”

Section: Introductionmentioning

confidence: 99%

Indoor Air Photocatalytic Decontamination by UV–Vis Activated CuS/SnO2/WO3 Heterostructure

Eneşca

Sisman

2022

Catalysts

View full text Add to dashboard Cite

A titania-free heterostructure based on CuS/SnO2/WO3 was obtained by a three-step sol–gel method followed by spray deposition on the glass substrate. The samples exhibit crystalline structures and homogenous composition. The WO3 single-component sample morphology consists of fibers that serve as the substrate for SnO2 development. The CuS/SnO2/WO3 heterostructure is characterized by a dense granular morphology. Photocatalytic activity was evaluated under UV–Vis radiation and indicates that the WO3 single-component sample is able to remove 41.1% of acetaldehyde (64.9 ppm) and 52.5% of formaldehyde (81.4 ppm). However, the CuS/SnO2/WO3 exhibits a superior photocatalytic activity due to a larger light spectrum absorption and lower charge carrier recombination rate, allowing the removal of 69.2% of acetaldehyde and 78.5% of formaldehyde. The reusability tests indicate that the samples have a stable photocatalytic activity after three cycle (12 h/cycle) assessments. During light irradiation, the heterostructure acted as a Z-scheme mechanism using the redox ability of the CuS conduction band electrons and the SnO2/WO3 valence band holes to generate the oxidative species required for VOC removal.

show abstract

Section: Introductionmentioning

confidence: 99%

Indoor Air Photocatalytic Decontamination by UV–Vis Activated CuS/SnO2/WO3 Heterostructure

Eneşca

Sisman

2022

Catalysts

View full text Add to dashboard Cite

show abstract

“…Except for the signicant effect of a single physical eld on the photocatalytic efficiency, the coupling of multiple physical elds also leads to many special phenomena in photocatalytic systems. For example, it has been conrmed that the photothermal catalysis 34,35 can signicantly improve the catalytic performance. Wei et al 34 systematically collected 65 types of catalytic systems from 1995 to now.…”

Section: Sijiamentioning

confidence: 99%

“…For example, it has been conrmed that the photothermal catalysis 34,35 can signicantly improve the catalytic performance. Wei et al 34 systematically collected 65 types of catalytic systems from 1995 to now. Table 1 compares the performance of photocatalysis, thermal catalysis and photothermal catalysis in VOC degradation.…”

Section: Sijiamentioning

confidence: 99%

“…It has been reported that under the synergistic effect of ultraviolet light and the thermal eld, the photo excitation and thermal excitation could act on the conduction band electrons at the same time. 34 Li et al 121 studied the normalized photoconductivity response in a CO 2 atmosphere at room temperature and 120 C, respectively, and found that all TiO 2 samples with different oxygen vacancy contents showed higher photoconductivity at 120 C. According to the decay curve of photoconductivity, Li concluded that the accelerated decay might be resulting from the improved charge-involved surface reaction. Therefore, it was speculated that the increase of temperature was benecial to improve the transfer of electrons from the bulk to the surface and the concentration of surface carriers, thus adding the probability of reduction of CO 2 .…”

Section: Heating Effectmentioning

confidence: 99%

“…Summary and comparison of the performance of photocatalytic (PC), thermocatalytic (TC), and photothermal catalytic (PTC) degradation of VOCs34 …”

mentioning

confidence: 99%

See 2 more Smart Citations

Review on LSPR assisted photocatalysis: effects of physical fields and opportunities in multifield decoupling

et al. 2022

Nanoscale Adv.

View full text Add to dashboard Cite

show abstract

Vortex Engineering on Oxide Bowl‐Coated Oxide/Gold Dual‐Layer Array for Dual Electrical/Spectroscopic Monitoring of Volatile Organic Compounds

Lu,

Yang,

Bao

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Integrating real‐time electrical gas sensing and highly identifiable surface‐enhanced Raman spectroscopy (SERS) for volatile organic compounds (VOCs) monitoring holds significant potential for safeguarding public health and safety. However, this technique remains in the proof‐of‐concept stage because the performance and reproducibility of devices fall short of meeting the practical application requirements. This work addresses this challenge by employing vortex engineering on a bifunctional dual‐layer array of Ni‐doped SnO2 (Ni‐SnO2) bowl‐coated on Ni‐SnO2/Au/SiO2 and developing highly reproducible device fabrication. In the dual‐layer array, vortices generated in upper Ni‐SnO2 bowls slow down the VOC flow and direct its delivery to gaps between lower Ni‐SnO2/Au/SiO2 units that are critical to SERS and electrical sensing. Experimental results show that the vortex effect in the array enables a low limit of detection of 10 ppb with a response and recovery in seconds. The excellent practicality of the array has been demonstrated through a ca. 100 hours of quantitative dual‐monitoring of styrene in a spacious environment (~60 m3) with a 5‐meter distance between the leakage source and the array. This work advances dual‐monitoring sensors for practical applications and offers insights for designing gas‐sensing materials and devices.

show abstract

Recent advances in VOCs and CO removal via photothermal synergistic catalysis

Cited by 60 publications

References 138 publications

Indoor Air Photocatalytic Decontamination by UV–Vis Activated CuS/SnO2/WO3 Heterostructure

Indoor Air Photocatalytic Decontamination by UV–Vis Activated CuS/SnO2/WO3 Heterostructure

Review on LSPR assisted photocatalysis: effects of physical fields and opportunities in multifield decoupling

Vortex Engineering on Oxide Bowl‐Coated Oxide/Gold Dual‐Layer Array for Dual Electrical/Spectroscopic Monitoring of Volatile Organic Compounds

Contact Info

Product

Resources

About