“…Nevertheless, the binding of NO with MoS 2 is still considered one of the strongest in many gas molecules including CO, CO 2 , NH 3 , CH 4 , H 2 O, N 2 , O 2 , and SO 2 [136]. This computational finding was verified by a few experiments that successfully detected NO with MoS 2 materials down to the ppm level [137][138][139]. Although there is not much research work that focuses on NO detection, it is demonstrated to give promising performances using TMDC material (see Table 2).…”
The material characteristics and properties of transition metal dichalcogenide (TMDCs) have gained research interest in various fields, such as electronics, catalytic, and energy storage. In particular, many researchers have been focusing on the applications of TMDCs in dealing with environmental pollution. TMDCs provide a unique opportunity to develop higher-value applications related to environmental matters. This work highlights the applications of TMDCs contributing to pollution reduction in (i) gas sensing technology, (ii) gas adsorption and removal, (iii) wastewater treatment, (iv) fuel cleaning, and (v) carbon dioxide valorization and conversion. Overall, the applications of TMDCs have successfully demonstrated the advantages of contributing to environmental conversation due to their special properties. The challenges and bottlenecks of implementing TMDCs in the actual industry are also highlighted. More efforts need to be devoted to overcoming the hurdles to maximize the potential of TMDCs implementation in the industry.
“…Nevertheless, the binding of NO with MoS 2 is still considered one of the strongest in many gas molecules including CO, CO 2 , NH 3 , CH 4 , H 2 O, N 2 , O 2 , and SO 2 [136]. This computational finding was verified by a few experiments that successfully detected NO with MoS 2 materials down to the ppm level [137][138][139]. Although there is not much research work that focuses on NO detection, it is demonstrated to give promising performances using TMDC material (see Table 2).…”
The material characteristics and properties of transition metal dichalcogenide (TMDCs) have gained research interest in various fields, such as electronics, catalytic, and energy storage. In particular, many researchers have been focusing on the applications of TMDCs in dealing with environmental pollution. TMDCs provide a unique opportunity to develop higher-value applications related to environmental matters. This work highlights the applications of TMDCs contributing to pollution reduction in (i) gas sensing technology, (ii) gas adsorption and removal, (iii) wastewater treatment, (iv) fuel cleaning, and (v) carbon dioxide valorization and conversion. Overall, the applications of TMDCs have successfully demonstrated the advantages of contributing to environmental conversation due to their special properties. The challenges and bottlenecks of implementing TMDCs in the actual industry are also highlighted. More efforts need to be devoted to overcoming the hurdles to maximize the potential of TMDCs implementation in the industry.
Room-temperature gas sensors have aroused great attention in current gas sensor technology because of deemed demand of cheap, low power consumption and portable sensors for rapidly growing Internet of things applications. As an important approach, light illumination has been exploited for room-temperature operation with improving gas sensor’s attributes including sensitivity, speed and selectivity. This review provides an overview of the utilization of photoactivated nanomaterials in gas sensing field. First, recent advances in gas sensing of some exciting different nanostructures and hybrids of metal oxide semiconductors under light illumination are highlighted. Later, excellent gas sensing performance of emerging two-dimensional materials-based sensors under light illumination is discussed in details with proposed gas sensing mechanism. Originated impressive features from the interaction of photons with sensing materials are elucidated in the context of modulating sensing characteristics. Finally, the review concludes with key and constructive insights into current and future perspectives in the light-activated nanomaterials for optoelectronic gas sensor applications.
“…Zhu et al reported the high adsorption of common gases (e.g., NO 2 , NH 3 ) on metal (V, Nb, Ta)-doped MoS 2 monolayer . Recently, various MoS 2 -based hybrids have been extensively reported as NOx sensors. − n -MoS 2 / p -GaN hybrids fabricated by a layer transfer techniques possessed the good sensitivity toward 50 ppm of NO 2 (47.89%) and NO (28.7%) . Wen et al reported that NO removal efficiency on MoS 2 /g-C 3 N 4 hybrid nanocomposites (increased by 65.5%) was remarkably higher than pure g-C 3 N 4 under the visible-light irradiation .…”
Molybdenum
disulfide (MoS2), as one of the most common
two-dimensional (2D) metal sulfides, has been attracting much attention
in the area of energy storage and environmental remediation, because
of its fascinating properties. Although much research regarding the
environmental application of MoS2 have been recently summarized,
reports on the recent progress of the removal of various environmental
pollutants on MoS2 are still scarce. Herein, we systematically
summarize the efficient elimination of environmental contaminants
(e.g., gas, organic, heavy metals, and radionuclides) on MoS2-based nanosheets. In addition, the interaction mechanisms (e.g.,
physical (hydrogen bonding, van der Waals forces), ion-exchange, chemical
adsorption, and redox) of environmental contaminants on MoS2-based materials were elucidated in detail. Finally, the major challenges
and future prospective on MoS2-based materials were presented.
This review has important implication for the design of MoS2-based materials with high adsorption performance and strong redox
capacity toward the removal of various environmental pollutants in
actual application.
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