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Atmosphere
Special Issues
Two-Dimensional Nanomaterials for Gas Detection and Energy Storage
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Two-Dimensional Nanomaterials for Gas Detection and Energy Storage

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Air Quality".

Deadline for manuscript submissions: closed (1 October 2023) | Viewed by 3513

Special Issue Editors

Dr. Xiaorong Gan

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Guest Editor
Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
Interests: two-dimensional nanomaterials for environmental monitoring; environmental remediation; environmental energy
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Baojun Liu

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Guest Editor
College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China
Interests: photocatalysis; electrocatalysis; advanced oxidation technology
Dr. Jianlin Zhang

E-Mail
Guest Editor
Jinan Environmental Research Academy, Jinan 250000, China
Interests: catalytic ozonation; ceramic membrane; advanced wastewater treatment
Dr. Gang Zhou

E-Mail Website
Guest Editor
Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
Interests: electrochemical catalysis, green energy

Special Issue Information

Dear Colleagues,

Gaseous pollutants in atmosphere, such as volatile organic compounds (VOCs), carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), ammonia (NH3), nitric oxide (NO), nitrogen dioxide (NO2), hydrogen sulfide (H2S) and sulfur dioxide (SO2), have adverse effects (e.g., the greenhouse effect) on the climate and, particularly, on human health (irreversible damage to the respiratory system). Therefore, it is of importance to monitor atmospheric quality (environmental analysis) and recycle air pollutants for useful products (energy storage and conversion). Atomically thin two-dimensional (2D) nanomaterials have opened up a new horizon of possibilities for energy storage, catalysis, and gas-sensing applications due to their intriguing physicochemical properties. From the perspective of structure–property relationships, 2D nanomaterials nanomaterials are among the first choices for constructing high-performance gas sensors due to their unique properties, which are beneficial for signal amplification and other performance parameters, such as selectivity and processability. In addition, 2D nanomaterials exhibit excellent catalytic activity due to their abundance of low-coordinated surface atoms. In this context, we believe that 2D nanomaterials will offer an array of possibilities to solve the environmental problems of air pollutants, especially regarding pollutant detection and treatments.

Here, the open access journal Atmosphere is hosting a Special Issue, Two-dimensional Nanomaterials for Gas Detection and Energy Storage, with the aim to disseminate recent advances in the field of various 2D nanomaterials or their nanocomposites for detecting various air pollutants or treating/activating the small molecules (e.g., N2 or CO2) for green energy.

Dr. Xiaorong Gan
Prof. Dr. Baojun Liu
Dr. Jianlin Zhang
Dr. Gang Zhou
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atmosphere is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • 2D transition metal dichalcogenide for gas sensors
  • photovoltaic self-powered gas sensor
  • 2D metal oxide for gas sensors
  • graphene-based gas sensors
  • 2D nanomaterials for N2 reduction
  • 2D nanomaterials for CO2 reduction

Published Papers (2 papers)

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Research

12 pages, 3764 KiB  
Article
Chemical Characteristics and Source Apportionment of PM2.5 in Western Industrial Region of Jinan
by Jian Guo, Haiyong Wang, Shanjun Liu and Zhanshan Wang
Atmosphere 2023, 14(5), 864; https://doi.org/10.3390/atmos14050864 - 12 May 2023
Cited by 1 | Viewed by 976
Abstract
In order to obtain the chemical composition characteristics and source apportionment of PM2.5 in a western industrial region of Jinan, manual sampling and analysis of PM2.5 in Pingyin County was conducted during 2019. The results showed that the total concentration of [...] Read more.
In order to obtain the chemical composition characteristics and source apportionment of PM2.5 in a western industrial region of Jinan, manual sampling and analysis of PM2.5 in Pingyin County was conducted during 2019. The results showed that the total concentration of 29 species of PM2.5 was 53.8 μg·m−3. The NO3− concentration (14.6 ± 14.2 μg·m−3) was the highest, followed by OC (9.3 ± 5.5 μg·m−3), SO42− (9.1 ± 6.4 μg·m−3) and NH4+ (8.1 ± 6.8 μg·m−3). Concentrations of OC, NO3− and SO42− were highest in winter and lowest in summer. The concentration of NH4+ was highest in winter and lowest in spring. The annual SOR and NOR were 0.30 ± 0.14 and 0.21 ± 0.12, respectively. SO2 emission and conversion ratio was highest in winter, leading to the highest SO42− concentration. SO2 emission in summer was low, but the conversion ratio was high. NOR in winter and autumn were close and higher than spring and summer. The high NOR in autumn caused a higher NO3− concentration compared with that in spring and summer. The average concentration of SOC during 2019 was 2.8 ± 1.9 μg·m−3, accounting for 30% of OC. The PMF results showed that coal emission accounted for 36.5% of PM2.5 concentration, followed by mobile sources (32.6%), industry emission (17.4%), dust emission (7.1%) and other emissions (6.4%). Full article
(This article belongs to the Special Issue Two-Dimensional Nanomaterials for Gas Detection and Energy Storage)
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10 pages, 1644 KiB  
Article
Direct Electrical Sensing of Iodine Gas by a Covalent Organic Framework-Based Sensor
by Wanshuang Zhou, Chun Kang, Cong Yu, Zhaojie Cui and Xinbo Wang
Atmosphere 2023, 14(1), 181; https://doi.org/10.3390/atmos14010181 - 14 Jan 2023
Cited by 4 | Viewed by 1934
Abstract
Rapid and highly sensitive detection of iodine gaseous species is crucial as the first response in case of nuclear accidents and nuclear waste clean-up. A robust and user-friendly sensor-based technology that allows online monitoring is highly desirable. Herein, we report the success of [...] Read more.
Rapid and highly sensitive detection of iodine gaseous species is crucial as the first response in case of nuclear accidents and nuclear waste clean-up. A robust and user-friendly sensor-based technology that allows online monitoring is highly desirable. Herein, we report the success of using a covalent organic framework (AQ-COF)-based sensor for real-time iodine gas adsorption and detection by the electrochemical impedance spectroscopy (EIS) technique. The sensor exhibits a high sensitivity and a pronounced electrical response to trace amounts of iodine vapor. Gaseous iodine was readily detected with a significant change in resistance (104×) at 70 °C within 5 min exposure to air. Notably, the EIS response is quite chemoselective to iodine over other common species such as air, methanol, ethanol, and water, with a selectivity of 320, 14, 49, and 1030, respectively. A mechanical study shows that the adsorption of iodine can reduce the optical bandgap of the AQ-COF, causing the impedance to drop significantly. This study demonstrates how the adsorption enrichment effect of selective I2 adsorption by a covalent organic framework can be leveraged to create a highly selective sensor for the direct online electrical detection of radioactive gaseous toxins. Full article
(This article belongs to the Special Issue Two-Dimensional Nanomaterials for Gas Detection and Energy Storage)
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