Bicone-like ZnO structure as high-performance butanone sensor

Zito, Cecilia A.; Perfecto, Tarcísio M.; Oliveira, Taís N.T.; Volanti, Diogo P.

doi:10.1016/j.matlet.2018.04.026

Cited by 32 publications

(6 citation statements)

References 15 publications

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“…A spin orbital splitting ΔE (Zn 2p 1/2 −Zn 2p 3/2 ) of 23.1 eV can be assigned to the single oxidation state of Zn 2+ . 52,53 Figure S20 shows the H 2 -TPR curves of the prepared catalysts. It is clearly seen that only one peak at ca.…”

Section: Resultsmentioning

confidence: 99%

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Realizing Toluene Deep Mineralization by Coupling Nonthermal Plasma and Nitrogen-Enriched Hollow Hybrid Carbon

Chen

Kosari

et al. 2021

ACS Appl. Mater. Interfaces

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Achieving excellent efficiency to mineralize volatile organic compounds (VOCs) under nonthermal plasma catalysis (NTP-catalysis) systems tremendously relies on the catalyst design. Herein, we report a dual-template strategy for synthesizing a core− shell structured nitrogen-enriched hollow hybrid carbon (N-HHC) by a facile pyrolysis of a Mn-ZIF-8@polydopamine core−shell precursor. N-HHC exhibits a remarkable plasma synergy effect and superior degradation efficiency for toluene (up to 90% with a specific input energy of 281 J/L), excellent CO 2 selectivity (>45%), and byproduct-inhibiting capability. Such outstanding functionality of the developed N-HHC is uniquely attributed to its hollow multistage and channeling structure, high concentration of O 3 -decomposing species (pyrrolic and oxide pyridinic-N), and abundant ZnO active sites. Shedding light on an efficient synthetic strategy for designing an advanced nanocatalyst with enhanced VOC destruction in the NTP-catalysis system, the present results could be extended to design other N-doped metal/metal oxide-decorated hollow porous carbons for environment-related applications.

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Section: Resultsmentioning

confidence: 99%

“…In Zn 2p spectra of the samples, two symmetric peaks at 1021.6 and 1044.7 eV are representative of the Zn 2p 3/2 and 2p 1/2 . A spin orbital splitting Δ E (Zn 2p 1/2 –Zn 2p 3/2 ) of 23.1 eV can be assigned to the single oxidation state of Zn 2+ . , …”

Section: Resultsmentioning

confidence: 99%

Realizing Toluene Deep Mineralization by Coupling Nonthermal Plasma and Nitrogen-Enriched Hollow Hybrid Carbon

Chen

Kosari

et al. 2021

ACS Appl. Mater. Interfaces

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“…According to Fu et al [35] and Buszewski et al [92], the concentration of 2-butanone in the human body is very low, and there is a cross concentration interval. Numerous butanone-sensing materials based on metal oxide semiconductor have been investigated, including bicone-like ZnO [93], Ce-doped SnO 2 [94,95], threedimensional (3D) urchin-like WO 3 [96], and Zn 2 SnO 4 nano cubes [97].…”

Section: -Butanonementioning

confidence: 99%

Metal oxide semiconductor gas sensing materials for early lung cancer diagnosis

He¹,

Chai²,

Luo³

et al. 2023

Journal of Advanced Ceramics

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The urgency of early lung cancer (LC) diagnosis and treatment has been more and more significant. Exhaled breath analysis using gas sensors is a promising way to find out if someone has LC due to its low-cost, non-invasive, and real-time monitoring compared with traditional invasive diagnostic techniques. Among sensor-based gas detection techniques, metal oxide semiconductor's gas sensors are one of the most important types. This review presents the-state-of-art in metal oxide gas sensors for the diagnosis of early LC. First, the exhaled breath biomarkers are described with emphasis on the concentration of abnormal volatile organic compounds (VOCs) caused by the metabolic process of LC cells. Then, the research status of metal oxide gas sensors in LC diagnosis is summarized. The sensing performance and enhancement strategy of biomarkers provided by metal oxide semiconductor materials are reviewed. Another effective way to improve VOC detection performance is to build a gas sensor array. At the same time, various gas sensors combined with self-powered techniques are mentioned to display a broad development prospect in breath diagnosis.Finally, metal oxide gas sensor-based LC diagnosis is prospected.

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“…Another ZnO-based sensor has been reported for the detection of butanone (C 4 H 8 O), a VOC present in the breath of patients with gastric cancer [ 202 ]. In particular, a bicone-like ZnO structure was prepared through a microwave-assisted template free method.…”

Section: Section C: Diagnosticmentioning

confidence: 99%

Paving the Way for a Green Transition in the Design of Sensors and Biosensors for the Detection of Volatile Organic Compounds (VOCs)

et al. 2022

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The efficient and selective detection of volatile organic compounds (VOCs) provides key information for various purposes ranging from the toxicological analysis of indoor/outdoor environments to the diagnosis of diseases or to the investigation of biological processes. In the last decade, different sensors and biosensors providing reliable, rapid, and economic responses in the detection of VOCs have been successfully conceived and applied in numerous practical cases; however, the global necessity of a sustainable development, has driven the design of devices for the detection of VOCs to greener methods. In this review, the most recent and innovative VOC sensors and biosensors with sustainable features are presented. The sensors are grouped into three of the main industrial sectors of daily life, including environmental analysis, highly important for toxicity issues, food packaging tools, especially aimed at avoiding the spoilage of meat and fish, and the diagnosis of diseases, crucial for the early detection of relevant pathological conditions such as cancer and diabetes. The research outcomes presented in the review underly the necessity of preparing sensors with higher efficiency, lower detection limits, improved selectivity, and enhanced sustainable characteristics to fully address the sustainable manufacturing of VOC sensors and biosensors.

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Bicone-like ZnO structure as high-performance butanone sensor

Cited by 32 publications

References 15 publications

Realizing Toluene Deep Mineralization by Coupling Nonthermal Plasma and Nitrogen-Enriched Hollow Hybrid Carbon

Realizing Toluene Deep Mineralization by Coupling Nonthermal Plasma and Nitrogen-Enriched Hollow Hybrid Carbon

Metal oxide semiconductor gas sensing materials for early lung cancer diagnosis

Paving the Way for a Green Transition in the Design of Sensors and Biosensors for the Detection of Volatile Organic Compounds (VOCs)

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